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549results about How to "Reduce breeding costs" patented technology

Method for producing pre-basic seeds of potatoes

The invention discloses a method for producing pre-basic seeds of potatoes. The method comprises the steps as follows: laboratory production of potato tube seedlings, sugar-free culture and fast propagation in a tube seedling greenhouse, and matrix and liquid culture for producing pre-basic seeds of potatoes. According to the invention, a polypropylene film bag takes the place of a traditional glass container, so that the light transmission and the air permeability are good, the cost is low, the weight is light, and the carrying is simpler; the mode of matrix and liquid culture achieves the purpose of propagating pre-basic seeds in a layered manner, so that not only can vain growth of the overground parts be controlled effectively, and growth and development of creeping stems of plants are ensured, but also forming and expanding of tubers at the top ends can be promoted effectively, and the operation is simple and easy; the pre-basic seeds can be grown in a plurality of seasons in a year, the quantity of potatoes borne in a unit area and the yield are improved greatly, the cost is reduced considerably, the propagation efficiency is improved, and industrial and mass production of virus-free miniature seed potato of potatoes can be realized.
Owner:SICHUAN AAS HORTICULTURE RES INST

Intelligent rapid seedling propagation and breeding device which contains crystal energy

The invention discloses an intelligent rapid seedling propagation and breeding device which contains crystal energy. The intelligent rapid seedling propagation and breeding device which contains the crystal energy is composed of following modules of a base seat, a cultivation bed, a light hood, a growth information generator, an LED (light emitting diode) plant growth light, a semiconductor refrigeration and heating device, a heat preservation barrel, a nutrient solution barrel, a cool air pipe, a mist spray pipe, a rotary type mist spray head, a water level adjusting mouth and a seedling breeding execution system. The intelligent rapid seedling propagation and breeding device which contains the crystal energy is mainly characterized in that a twelve face crystal in a trigonal crystal system is arranged above the intelligent rapid seedling propagation and breeding device which contains the crystal energy, plant rooting and sprouting information is generated, growth information is conducted into a plant through the polyethylene light hood in a pyramid shape so as to start a rooting and sprouting growth mechanism of the plant, positions of the sun are figured out through sunlight according to sun traces of the LED plant growth light and the seedling breeding execution system, and manual sunlight suitable for plant varieties is intelligently controlled through a Zigbee protocol. The intelligent rapid seedling propagation and breeding device which contains the crystal energy is short in breeding cycle, achieves a developed root system for the plant, and can be widely used in industrialization seedling development and usage.
Owner:SUZHOU KEDA WEILONG INFORMATION TECH

Method for determining optimal SNP quantity as well as performing genome selective breeding on production performance of large yellow croakers through selection markers

The invention discloses a method for determining optimal SNP quantity as well as performing genome selective breeding on production performance of large yellow croakers through selection markers. The method comprises the following steps: performing phenotype determination and genomic sequencing on the production performance of individuals of a reference group to obtain SNP locus; screening out the qualified SNP locus and supplementing the deleted genotype; dividing the reference group into a training set and a validation set to perform hybridization validation; screening the SNP locus most remarkably associated with the character through single marker analysis, and then calculating GEBV of individuals of the validation set only by using the locus and through a GBLUP method; further obtaining breeding value estimation accuracy under each screening SNP quantity; finally determining the optimal quantity of SNP screening; and according to the optimal quantity, calculating the GEBV by the GBLUP method, further obtaining the breeding value estimation accuracy and performing genome selective breeding according to the value size. By the method, the genomic selection cost on the production performance of the large yellow croakers can be reduced remarkably.
Owner:JIMEI UNIV

An ecological method for producing farm and side line products

The present invention is one complete biological chain planting and breeding method comprising raising pig, raising chick and planting grains based on raising fly maggot and earthworm and microbiological technology. The planting and breeding method includes fermentation, producing fly maggot, compounding pig and chicken feed, producing corn, wheat and other grain variety and other processes. The said technological process is novel and practical and can lower production cost, raise product quality, purify environment and raise economic utility.
Owner:王太新

Detection primers for molecular markers in close linkage with major QTL of wheat ear length and application of detection primers

The invention relates to detection primers for molecular markers in close linkage with a major QTL (Quantitative Trait Locus) of wheat ear length and an application of the detection primers. The detection primers for the molecular markers include an upstream primer, having a nucleotide sequence as shown in SEQ ID NO.1, of the molecular marker XWMC112 and a downstream primer, having a nucleotide sequence as shown in SEQ ID NO.2, of the molecular marker XWMC112, and an upstream primer, having a nucleotide sequence as shown in SEQ ID NO.3, of the molecular marker XCFD53 and a downstream primer, having a nucleotide sequence as shown in SEQ ID NO.4, of the molecular marker XCFD53. The molecular marker XWMC112 and the molecular marker XCFD53 are studied and found for the first time, and can be used for quickly determining whether a wheat variety or strain has the QTL of the ear length, and thus quickly screening out the wheat variety or strain having the QTL for increasing the ear length, and therefore, the breeding progress of a high-yield wheat variety can be accelerated.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Four-primer molecular marking method for identifying different genotypes of rice grain length gene GS3

ActiveCN103882146ANo errors leading to genotypingThere is no error that caused the identificationMicrobiological testing/measurementDNA/RNA fragmentationAgricultural scienceGenotype
The invention relates to a four-primer molecular marking method for identifying different genotypes of a rice grain length gene GS3, belonging to the technical field of agricultural bioengineering. Four marking primers are designed and synthesized according to differences of a long and large-grain variety TD70 and a short and small-grain variety Kasalath in the nucleotide base sequence of the grain length gene GS3, and are added into the same PCR system for amplifying different rice DNA so as to distinguish different genotypes of homozygotes and heterozygotes of the GS3. The method disclosed by the invention not only can be used for rapidly and accurately identifying the different genotypes of the grain length gene GS3 in a rice genetic resource or a breeding population but also can be used for improving the selection efficiency on a long-grain genotype GS3-TGS3-T and speeding up the breeding progress of a new long-grain, high-quality and high-yield rice variety.
Owner:JIANGSU ACAD OF AGRI SCI

Factory propagation method for detoxified red sweet potato

The invention relates to a factory propagation method for detoxified red sweet potato. The method comprises the step of detoxifying test-tube plantlets, breeder seeds, stock seeds and improved variety. The method specifically comprises the following steps: firstly, cleaning potato blocks, using 800-times diluted solution of 50% carbendazim for disinfecting for 20min and then performing 26 DEG C constant temperature sprouting; adopting a high / low temperature alterative treating mode of treating for 16 hours at 26 DEG C and treating for 8 hours at 35-40 DEG C in each day for continuously treating for about 30 days when the buds grow to 0.1-0.5cm; performing stem apex detoxification, rapid tissue culture propagation, rooting and seedling hardening, rapid water culture propagation, potato vine transplanting and breeder seeds propagation; and using the breeder seeds for rowing potato and seedling in the greenhouse with a fly net in the next year; transplanting into field, performing field management, controlling pests, timely harvesting and storing the stock seeds before frosting and propagating the excellent stock seeds. According to the invention, the detoxified seedlings can be subjected to factory propagation within a short period of time, the production cost of the detoxified seedlings can be reduced and the lastly acquired detoxified improved variety is convenient for the peasant to plant, transport and store.
Owner:牛力立

Mutant gene of rice starch branching enzyme SBE3 gene and application of mutant gene

The invention provides a mutant gene of a rice starch branching enzyme SBE3 gene. The mutant gene has a basic group mutation of T--C in a position corresponding to the 105th position of the 16th exon of the rice starch branching enzyme SBE3 gene. The invention further provides a method for screening rice variety with high resistant starch content. The basic group mutation of the mutant gene can be served as a molecular marker to effectively detect Jiangtangdao 1 with high resistant starch content and derived varieties (lines) of Jiangtangdao 1, so that the selection efficiency of the new rice variety with high resistant starch content is greatly improved and the rice variety with high resistant starch content is obtained.
Owner:SHANGHAI ACAD OF AGRI SCI +1

Tissue-culture rapid propagation method for pyrus betulaefolia bunge

ActiveCN103380730AImprove the efficiency of rapid propagationHigh rooting rateCultivating equipmentsPlant tissue culturePyrus betulaefoliaBud
The invention discloses a tissue-culture rapid propagation method for pyrus betulaefolia bunge. The tissue-culture rapid propagation method for the pyrus betulaefolia bunge comprises disinfecting on explants, inducing buds, propagating test tube seedlings, inducing calluses, inducing rooting and transplanting exercising seedlings. During the process of inducing rooting, the calluses are firstly induced and then the rooting is induced; obtained rooting test tube seedlings are performed seedling exercising in a triangular flask, then transferred to perlite to domesticate the exercising seedling and finally transplanted. Compared with the traditional method, the tissue-culture rapid propagation method for the pyrus betulaefolia bunge has the advantages of being high in rooting rate and survival rate of transplanting, high in propagation rate, low in cost, convenient to popularize, good in genetic stability and suitable for the pyrus betulaefolia bunge.
Owner:JIANGSU ACADEMY OF AGRICULTURAL SCIENCES

Ancient tea rapid cultivation method

The invention provides an ancient tea rapid cultivation method. The method comprises the steps of 1, site selection of nursery land, wherein dry land, paddy soil land, sandy loam soil land or yellow soil land which is flat, capable of achieving drainage and irrigation, fertile, deep, good in structure and high in air permeability is selected; 2, establishment of a seedbed; 3, building of a sun shelter; 4, cuttage, wherein cutting wood is 3-4 cm long with a leaf reserved, a 100 mg / L solution is prepared with rooting powder, and the root of the cutting wood is soaked for 2 hours; 5, application of a film; 6, management of the nursery land; 7, outplanting. According to the method, female parent cultivation is not needed during cutting wood picking, and practice proves that cultivation cost is low, the basic characters of cultivated plants can be guaranteed, survival rate is high, operation is easy, cultivation time is short and is shortened by one third compared with a traditional cuttage method, and transplanting survival rate is increased especially so that requirements for storage, utilization and research of ancient tea germplasm resources can be met.
Owner:TONGREN TEA IND ASSOC

Seedling cultivation method of Ulmus pumila cv.jinye by burying branches with roots

The invention relates to a new Ulmus pumila cv.jinye seedling raising technique, in particular to an Ulmus pumila cv.jinye root-reserved and branch-buried seedling raising method which has new breakthrough in breeding speed of the Ulmus pumila cv.jinye. The method is characterized in that 1. selecting all lateral branches at one side with large lateral branch amount of a plant while treating a maternal plant, and removing all lateral branches at another side; 2. performing primary branch burying, selecting branches with the length more than 30cm for burying, and burying branches with the length less than 30cm into soil with principal branches; and cutting 2-3 cuts at the lowest part of a bent part of the branches buried in the soil; and 3. selecting the branches with the length more than 30cm for secondary branch burying by new lateral branches growing in the primary branch burying and new branches growing on unburied branches in June; performing tertiary branch burying on the branches with the length more than 30cm, wherein, the branches grow into new plants in autumn; and the treatment method in the secondary branch burying and the tertiary branch burying are the same. The method has the advantages of high propagation coefficient, rapid propagation speed, less expense and low cost.
Owner:HEBEI ACAD OF FORESTRY SCI

Breeding method of high-quality synthetic white pig line

The invention relates to the technical field of animal breeding and particularly provides a breeding method of a high-quality synthetic white pig line. The method utilizes existing domestic and overseas pig breed resources, a specialized line is bred according to a trait differentiation and selection principle, thus commercial pigs quicker to grow, higher in lean meat percentage, good in meat quality, strong in resistance and high in slaughtering weight uniformity are obtained through hybrid breeding of the specialized line, the problem existing in 'inner binary' and 'inner ternary' breeding systems can be solved, meanwhile local pig breed resources can be also effectively protected and utilized, high-quality pig breeds are provided for industrial large-scale breeding, and the heavy demands for high-quality pork of masses of consumers are met.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Method for rapidly obtaining a large number of wheat double-haploid homozygous populations

ActiveCN104737757ASolve the problem of flowering periodGuaranteed to meet the flowering periodHorticulture methodsPlant tissue cultureBiotechnologyEmbryo
The invention discloses a method for rapidly obtaining a large number of wheat double-haploid homozygous populations. According to the method, based on a wheat and corn double-haploid breeding technology, through the key links of wheat and corn sowing at different stages, haploid induction, transplantation and vernalization, reduplication and transplantation and winter sowing treatment, after wheat young embryos differentiate into haploid seedlings, transplantation, vernalization and haploid plant reduplication are completed in the same year without over-summer treatment, wheat double-haploid seeds can be harvested in the same year, the requirement for sowing once more can be met after the harvest on the perspective of time, a large number of stable new strains of the wheat homozygous populations can be obtained within one year, the requirement for identifying the new strains at the next stage is met, the natural environment is utilized to the maximum degree, and the time of wheat double-haploid breeding is shortened to one year from two to three years. In this way, the wheat breeding speed is increased, the breeding efficiency is improved, the breeding cycle is shortened, and the breeding cost is lowered.
Owner:ZHOUKOU ACAD OF AGRI SCI

Molecular marker for controlling flowering phase of cabbage type rape and applications of molecular marker

The invention belongs to the field of molecular marker screening, and relates to a molecular marker for controlling the flowering phase of cabbage type rape and applications of the molecular marker. The molecular marker is cloned from a BnaA 10.CO gene, is located on the A10 chromosome of the cabbage type rape, and is a key gene of a photoperiod route in a flowering phase regulation network. BnaA10. CO gene segments are cloned from winter rape and spring rape, and the sequences of the segments are shown as SEQ ID NO: 1 and SEQ ID NO: 3. Primers of the molecular marker related to the floweringphase are shown as SEQ ID NO: 5 and SEQ ID NO : 6. The transformation proves that the gene is derived from an allele of winter rape, and the effect of promoting flowering of the gene is stronger thanthat of the allele of the spring rape. The allele derived from the winter rape can shorten the growth period of half-winter rape. The molecular marker developed according to the InDel differences ofthe 25th-27th sites of the BnA 10.CO gene region can be used for early-maturing breeding of rape.
Owner:HUAZHONG AGRI UNIV

Molecular marker related with diameter character of sheep wool fibers as well as specific primer and application thereof

The invention relates to the technical field of animal molecular markers, in particular to a molecular marker related with a diameter character of sheep wool fibers as well as a specific primer and application thereof in selection of diameter character of Chinese Merino sheep wool fibers. The molecular marker related with the diameter character of the sheep wool fibers is located at the No.30 exonof the No.21 chromosome of FAT3 gene. The molecular marker has the advantages that the function of using rs425144268 SNP site as the molecular marker of the diameter of the sheep wool fibers is disclosed for the first time, and the function of applying the rs425144268 SNP site to the selection of the diameter character of the Chinese Merino sheep wool fibers is disclosed for the first time; whenthe excellent diameter character of the wool fibers is identified by the molecular marker related with the diameter character of the sheep wool fibers, the operation is simple, and the sheep with smaller fiber diameter can be screened in an assisting way; because the detection level of the molecular marker is started, the accuracy of variety selection is improved, and the detection efficiency is improved.
Owner:新疆畜牧科学院畜牧研究所 +1

Method for breed porker by using Changbai mountain wild boar as male parent and Songliao black pig as female parent

A method for culturing the hybrid meat pig includes such steps as hybridizing between the Changbai mountain wild boar as male parent and Songliao black pig as female pig, selectively culturing the hybrid descendant to obtain Changbai mountain black pig, and transverse hybridizing between said Changbai mountain black pig as male parent and Songliao black pig as female parent. The resultant descendant features its excellent pork.
Owner:吉林省盛京黑猪繁育有限公司

Method for rapidly obtaining pure line of hybrid wheat

The invention relates to a method for rapidly obtaining a pure line of hybrid wheat, comprising the following steps: (1) preparing a hybridized combination; (2) planting a hybrid material; (3) determining an appropriate ear fetching period; (4) pre-treating anther; (5) dissociating and purifying microspores: (6) adjusting the density of the microspores; (7) forming microspore embryos by induction; (8) forming regenerated plants by differentiation culture; (9) allowing regenerated seedlings to pass the summer at low temperature; (10) culturing the strong seedlings; (11) hardening the seedlings; (12) transplanting the seedlings; (13) managing the transplanted seedlings; and (14) harvesting after the seedlings become mature. In the method, a test material is directly planted in a field and the microspores are dissociated from the anther for culture to eliminate the disturbance of an anther wall, thus being beneficial to optimization of various culture factors, improving the induction frequency of the microspore embryos, overcoming limitation on a genotype, promoting more hybrid combined materials to obtain the regenerated plants, providing more abundant base materials for variety breeding, and playing an important role in enhancing the breeding efficiency of a haploid.
Owner:甘肃省农业科学院生物技术研究所

Molecular markers of paddy endosperm low amylose content gene Wx-mq

The invention relates to molecular markers of paddy endosperm low amylose content gene Wx-mq, which belong to the field of molecular genetics. Two pairs of PRC molecular marker primers for specifically amplifying paddy endosperm low amylose content control gene Wx-mq and an allelic gene Wx-b thereof are used, wherein a forward general primer 1Wx-b-F of the Wx-b and the Wx-mq, a reverse primer 11Wx-b-R of the Wx-b and a reverse primer 11Wx-mq-R of the Wx-mq perform common amplification on the DNA of japonica rice varieties or materials, and can distinguish genotypes of the Wx-mq gene and the allelic gene thereof accurately. Developed peculiar PCR markers of the allelic gene are utilized to perform the paddy endosperm low amylose seed breeding and the improvement of rice quality.
Owner:JIANGSU ACADEMY OF AGRICULTURAL SCIENCES

Method for breeding rehmannia toxin-free seedling

The invention discloses a method for breeding a rehmannia toxin-free seedling. The method disclosed by the invention comprises the following steps: production of an original rehmannia seedling: cutting a rehmannia toxin-free test-tube plantlet into stem segments provided with axillary buds with the length of about 1cm on a clean bench, inoculating the stem segments onto a culture medium with the concentration of MS+NAA of being 0.01-0.05mg / L and the concentration of 6-BA of being 0.05-0.5mg / L, and culturing under the culture conditions of light intensity of 2000lux, pH of 6.0 and temperature at 25-30 DEG C to obtain a toxin-free test tube plantle, wherein, reproduction coefficient can reach about 5 after 30-40 days; cutting the rehmannia toxin-free test tube plantlet into the stem segments provided with the axillary buds with the length of about 1cm on the clean bench, inoculating the stem segments onto a culture medium with the concentration of 1 / 2MS+PPP<333> of being 0.02-0.2mg / L, and culturing in a culturing room to obtain a rooted toxin-free test tube plantlet, wherein, roots are formed within 7 days and a large number of roots are formed within 15-20 days; and transplanting the test tube plantlet into a greenhouse to carry out acclimation so as to finally obtain the toxin-free seedling, wherein, transplanting survival rate can reach up to more than 95%. The method disclosed by the invention has the advantages that cost for breeding the toxin-free seedling is low and yield is high.
Owner:HENAN NORMAL UNIV

Cutting seedling cultivating method for twig of tea tree

The invention discloses a cutting seedling cultivating method for a twig of a tea tree. The method comprises following steps: in late August to the middle of September, selecting purple, semi-lignification twig of current year tea tree as shoot for cutting, intercepting for 3-5cm, cutting for one bud and one leaf, the physiological upper end of the shoot for cutting is flat, the lower end is oblique section, and the distance between the section and the leaf or bud is 0.5cm more or less; generally keeping one leaf, the leaf can be cut off for 1 / 3 or 1 / 2 when the leaf is oversize; soaking the cut shoot for cutting in the rooting powder of 800ppm for 2-4h, and inserting the soaked shoot for cutting into the medium comprising earthworm fertilizer with 60 or 72 hole disk and perlite of a ratio of 1: 3-5, generally managing, and transplanting in the spring; the cutting seedling cultivating method for the twig of the tea tree effectively uses the season advantage and earthworm manure lasting characteristic for improving the cutting and rooting efficiency for many varieties of tea tree and effectively shortening breeding and seedling cultivating time for the tee tree seedling; the survival rate of transplanting is high, the cutting medium is simple, the production cost is low, the operation is easy and the managing cost is low.
Owner:JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY

SNP loci combination for growth performance of meat sheep and application thereof

ActiveCN112695107AGood versatility at home and abroadAccurate Breeding EstimatesMicrobiological testing/measurementDNA/RNA fragmentationAnimal scienceMedicine
The invention discloses a SNP loci combination for growth performance of meat sheep and an application thereof, and relates to the technical field of gene breeding. According to the invention, 2036 SNP loci are provided, and physical position information of the 2036 SNP loci is determined based on comparison of sheep v4.0 genome sequences. The SNP loci are SNP0001-SNP2036. Genetic evaluation is performed on sheep individuals based on the 2036 SNP loci, thereby achieving individual selection on growth traits difficult to measure in the early stage, shortening generation interval, accelerating breeding process and thus saving substantial breeding cost.
Owner:中科云谱(内蒙古)基因生物科技有限公司

Carbon fiber microalgae cultivating system using wastewater resources

A carbon fiber microalgae cultivating system using wastewater resources comprises a wastewater resources conveying subsystem, an algae cultivating pond, a biomass collecting subsystem, a drying system, outward transportation, a carbon fiber water quality regulating reservoir, a CO2 charging system, an illuminating system, a water quality and water quantity monitoring system, a wastewater resource regulating and controlling subsystem and the like, wherein the regulating reservoir is used for reducing the concentrations of organic matters and nitrogen and phosphorus pollutants in the wastewater resources, removing suspended matters, heavy metals and toxic substances and increasing the transparency of a water body; and the cultivating pond is used for cultivating biomass for high-yield oil and high-protein attached algae and microalgae, and thus the nitrogen and phosphorus are further degraded and the CO2 is fixed by the high-yield oil and high-protein algae. The carbon fiber microalgae cultivating system disclosed by the invention is an integrated product and equipment system for realizing water quality purification, algae cultivation and reduction and emission of greenhouse gases by using the wastewater resources; the technical bottleneck of eutrophication water body control and CO2 reduction and emission is solved; the economic pressure of governing water containments and the greenhouse gases is retarded; and the maximization of environment benefit, economic benefit and social benefit is realized by fully utilizing the wastewater resources.
Owner:武汉环天禹生物环保科技有限公司

Breeding method for disease-resistant and heat-resistant capsicum annuum L. rootstocks of different physiological races

InactiveCN103843592ASpeed ​​up the process of resistance breedingImprove traitsHorticultureDiseaseAnimal science
The invention discloses a breeding method for disease-resistant and heat-resistant capsicum annuum L. rootstocks of different physiological races. According to the method, the advantages of capsicum annuum L. heterosis breeding and grafting technologies are integrated, and the disease resistance and the heat resistance of varieties with excellent comprehensive characters but poorer disease resistance and heat resistance can be remarkably improved by the bred disease-resistant and heat-resistant capsicum annuum L. rootstocks; the method has the advantages of simplicity in operation, breeding time saving, low breeding cost and the like; by the method for improving the disease resistance and the heat resistance of excellent varieties by breeding the rootstocks, the resistance breeding process of capsicum annuum L. is greatly accelerated.
Owner:NORTHWEST A & F UNIV

Method for breeding corn inbred line by using hybridizing induction of haploids

The invention discloses a method for breeding a corn inbred line by using the hybridizing induction of haploids, and belongs to the field of crop breeding methods. The method comprises the following steps: pollinating basic population or cenospecies according with breeding targets by using JASS31, and selecting aleurone layer top purple and purple-free embryonic tip labeled grains; naturally or artificially doubling the obtained material, and inbreding; and selecting non-separated head progeny rows realizing consistent progenies as a new inbred line. The method has a high haploid inductivity reaching above 13%, and has the advantages of obvious selection labeling, easy screening and high accuracy; and additionally, the JASS31 used in the invention has a moderate height, a long flowering time and a large pollen amount, and natural pollination induction of haploids can be carried out, so the artificial pollination can be avoided, labor saving is realized, and it is suitable for the large scale population operation. The method also has the characteristics of high breeding efficiency, simple operation and fast breeding speed.
Owner:JILIN ACAD OF AGRI SCI

Method for plant leaf bud shoot cutting propagation all year around

ActiveCN103875435AThe promotion cycle is shortenedLarge amount of reproductionHorticultureShootCell budding
The invention relates to a method for plant leaf bud shoot cutting propagation all year around and relates to the technical field of vegetative propagation. The method aims to overcome the defects that in the prior art, nursery stock seedling propagation is large in variation and part of nursery stock is low in maturing rate, and tissue culture propagation is high in cost and difficult in technology management, and minimum stems of existing fine seed nursery stock leaf buds are adopted as female parent cuttage materials for cuttage. The method includes the steps of solar greenhouse or movable greenhouse facility and planting bed preparation, leaf bud selection, cuttage time and method determination and seedling period management. The propagation coefficient of seedlings cultivated in the method can be progressively increased in a multiplied mode, the survival rate of the seedlings can reach 90%, roots are developed and grow vigorously, and the transplantation survival rate can exceed 95%. The method has the greatest advantages that mass production and industrialized production can be achieved, propagation does not need professionals, and the method is easy to operate, low in individual cost, high in propagated seedling survival rate and easy to popularize.
Owner:青岛大地之上自然农耕农业有限责任公司

Molecular marker for identifying resistance gene of tomato mosaic virus (TOMV) and application thereof

InactiveCN108330201ARapid disease resistance identificationAccurate identification of disease resistanceMicrobiological testing/measurementDNA/RNA fragmentationAgricultural scienceTomato mosaic virus
The invention provides a molecular marker for identifying resistance gene of tomato mosaic virus (TOMV) and an application thereof, and includes a KASP primer and a kit for identifying the resistancegene of TOMV, a method for identifying whether a tomato contains the resistance gene of TOMV or not, and a method of distinguishing anti-TOMV tomatoes and TOMV-infected tomatoes. In the invention, themolecular marker can be used for quick and accurate resistance identification in a large throughput during seedling period of tomato plants, thus increasing seed breeding efficiency, saving seed breeding cost, and accelerating seed breeding procedure.
Owner:CHINA NAT SEED GRP

High-efficiency polymerization method for apple cross breeding

The invention discloses a high-efficiency polymerization method for apple cross breeding. The cross breeding is the most important and most effective way of the breeding of the apples, but the evaluation and the screening of crossbreed seedlings and cross breeding fruits take a lot of work and labors, steps of the cross breeding method are complicated, and the improper technology of each step can cause the failure of the breeding. The breeding period of the apples is long and needs at least 20 years from the cross breeding to the new species selecting and breeding. The method optimizes the key steps of the cross breeding of the apples and overcomes the defects of the conventional breeding method. The method adopts the technical schemes of anther collection; artificial cross breeding; cross breeding management; cross breeding seed collection and pregermination; cross breeding young seedling management; early selection of cross breeding seedlings; primary selection and reselection; and excellent series area demonstration. Compared with the conventional method, the high-efficiency polymerization method specifically and effectively selects indexes, can shorten the breeding period of the apples by 3-4 years and save the breeding cost of the apples by 15-20 percent, and the method system achieves the international advanced level.
Owner:NORTHWEST A & F UNIV

Molecular marker affecting early-stage growth of goats, detection method and application thereof

The invention discloses a molecular marker affecting early-stage growth of goats, a detection method and application thereof. The molecular marker affecting early-stage growth of goats is located at goat MC4R gene 502 locus and has A / G polymorphism, and the early-stage weight of goats of AA type is larger than that of goats of GG type. A method for screening rapid-growing goat strain in the early stage is characterized by including the steps of detecting polymorphism of the goat MC4R gene 502 locus and selecting AA type individuals to reserve seed stock. The method is capable of improving accuracy of goat growth trait selection and used for ultra early seed selection to accelerate new goat species culture.
Owner:JIANGSU ACAD OF AGRI SCI

A Molecular Marking Method for Sheep Wool Curl

The invention provides a molecular marking method for sheep wool curl, which relates to a molecular marking method, which comprises the following steps of: 1, extracting the sheep genome deoxyribonucleic acid (DNA) for carrying out polymerase chain reaction (PCR) amplification and then carrying out enzyme digestion to obtain enzyme digestion products; 2, carrying out electrophoresis separation onthe enzyme digestion products and carrying out genotype judgment according to the electrophoresis separation results; 3, carrying out association analysis and evaluating least square mean value of the property to obtain a result that the wool curl of individuals with the TT genotype type and TC genotype in the three genotypes is obviously higher than the wool curl of individuals with the CC genotype; and 4, dividing experiment groups into three types according to the result in the third step to complete the operation of the molecular marking method. The molecular marking method can be used for wool curl and fineness molecular marking auxiliary culture, the early period selection of the breeding sheep can be realized, and the sheep can be selected after the birth, so the breeding cost can be reduced, the breeding process of high-quality fine wool sheep is accelerated, the operation is simple, the accuracy is high, the efficiency is high, and the automatic detection can be realized.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY

Method for creating winter dwarf male-sterile wheat with blue seeds

The method relates to a method for creating winter dwarf male-sterile wheat with blue seeds. The method is characterized in that winter (or semi-winter) wheat is used as a male parent under a natural ecological condition in a winter (or semi-winter) ecological area; the dwarf male-sterile wheat with blue seeds is continuously subjected to back crossing with the male parent; the seeds of dwarf male-sterile wheat with blue seeds are selected from progeny individuals of the dwarf male-sterile wheat with blue seeds subjected to back crossing for sowing in autumn in order to naturally eliminate non-anti-freezing spring (or partial spring) dwarf male-sterile wheat plant individuals with blue seeds, the progeny individuals showing high anti-freezing performance in the wintering period, of winter dwarf male-sterile wheat plants with blue seeds, are selected and subjected to back crossing again; the date of sowing in autumn is gradually advanced each year, so as to gradually improve the selection of the winter dwarf male-sterile wheat with blue seeds; after performing back crossing to reach 8th to 10th generations, the winter dwarf male-sterile wheat with blue seeds can be created and has winter or semi-winter genetic background as well as blue seeds, dwarf stalks and male sterile linkage markers. With the adoption of the method, the genetic background of winter dwarf male-sterile wheat with blue seeds can be transformed from spring or semi spring property to winter or semi winter property, which creates conditions for applying wheat in Huang-Huai River Valley and north winter wheat regions based on the heterosis.
Owner:SHANDONG BINZHOU HEIMA SEED IND
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