114results about How to "Shortened reproductive period" patented technology

The invention relates to eupolyphaga breeding method using sawdust, disclosing a breeding material prescription and preparation method thereof. The breeding mainly consists of sawdust, yellow soil, vegetable garden soil, coalball slag or dried cow dung. The method for breeding eupolyphaga has the advantages of loose and breathable soil, good moisturizing factor, low cost, simplicity, convenience, short growing period of the eupolyphaga, strong disease-resistant ability, rapid propagation and high yield. The growing period can reduce 6 to 8 months compared to 30 months for wild eupolyphaga with an output raised about 30% to traditional breeding.

The invention discloses a cultivation method for concentrated boll opening of cotton in cotton regions of the South China. Through unique processes of seeding, fertilizing, topping, ripening and the like, cotton colony structure and cotton fruiting and boll opening modes are optimized, the total growth period of the cotton can be shortened by 60-70 days, and especially, the boll opening period of the cotton is enabled to be concentrated within 30-40 days, so that convenience is brought to manual concentrated cotton harvesting or mechanical cotton harvesting, 4-5 workers in harvesting links can be saved by manual concentrated cotton harvesting compared with current cultivation methods, and a season contradiction between cotton production and winter crop soil preparation is solved. The cultivation method is especially suitable for popularization and application in multiple-cropping cotton regions of the South China.

The invention provides a Brassica napus annual multi-generation generation adding method. Four stages including seed pretreatment, transplanting and seedling management, flowering phase management and pod development period management are effectively controlled, and one-year three-cropping or four-cropping (ie, annual three-generation or four-generation generation adding) of the Brassica napus is realized, the seed breeding process is effectively accelerated, and the seed breeding year limit is shortened. The controllable greenhouse cultivation technology is adopted, so that the running around at different places are avoided, the time is saved, and manpower and material resources are saved. The Brassica napus annual multi-generation generation adding method is applied to backcross or cross breeding, and seed breeding of novel high-quality and high-yield disease-resistant varieties of Brassica napus can be accelerated.

The present invention discloses a bio-organic fertilizer produced in a quick fermentation manner by adopting crop stalks as a main material and a preparation method for the bio-organic fertilizer, and relates to the technical field of agricultural fertilizers. The bio-organic fertilizer is prepared by mixing and granulation of the following materials in parts by weight: 40-60 parts of crop stalks, 20-30 parts of live stock excrement, 10-20 parts of humic acid, 0.4-0.6 part of microbe fungus, 2-6 parts of ammonium chloride, 1-3 parts of potassium chloride, 2-4 parts of calcium superphosphate, and 0.4-0.6 part of medium and microelements. The bio-organic fertilizer has the advantages of being relatively low in production cost, relatively high in biological activity, high in fertilizing value, and broad in raw material sources, can be taken as paddy rice fertilizers, upland crop, vegetable, amphisarca and fruit tree fertilizers, and flower fertilizers.

The cultivation method of super early mature cotton includes selecting the cotton variety with genetically limited fruit bearing shoot or zero-type shoot in the 2-4 fruit bearing shoot positions; thrice spraying marketable mepiquat chloride of the amount of 1-1.5 g, 1.5-2 g and 2-3 g each mou in the full bud stage, the initial bloom stage and the full bloom stage separately. Compared with available similar variety, the present invention has growth period as short as 101 days, planting density up to 6000-12000 plants/mou and about 50 % raised cotton yield.

The invention belongs to agricultural scientific research technology, and relates to the field of crop breeding science, in particular to a method suitable for accelerating the crossbreeding process of strong winter wheat in four generations in one year in an embryo culture technology. The method mainly comprises the following steps: step one, a wheat immature embryo culture technology; step two,seedling artificial vernalization technology; step three, a wheat plant reproductive growth regulation and control technology; and step four, a gene homozygosis accelerating technology for four generations of a crossbreeding generation system in one year. The method is easy and convenient to operate, controllable in procedure, economical and practical, completely aiming at the strong winter wheatby utilizing the embryo culture technology, the artificial vernalization technology, the reproductive growth regulation and control technology and the gene homozygosis accelerating technology for fourgenerations of a crossbreeding generation system in one year, and the growth period of the strong winter wheat is greatly shortened under the controllable indoor culture condition, the crossbreedingprocess of the strong winter wheat is accelerated, and the breeding of four generations of strong winter wheat in one year is realized.

The invention provides a direct seedling type rice variety regional testing method. The method comprises the following steps: 1) test field preparation; 2) field design; 3) seeding preparation; 4) seed direct seedling; 5) field management; and 6) character examination. Compared with the traditional transplanting type rice variety regional test, the direct seedling type rice variety regional test provided by the invention has the advantages that the test error is low, the breeding period of a sample to be tested is short, the yield level is high, the test cost is reduced and the test efficiency are improved. In short, the method has the advantages of being correct in result, saving cost and enhancing effect. By using the method, a new good rice variety suitable for direct seedling cultivation can be accurately selected.

The invention discloses a soybean GmFTL4 protein and a soybean GmFTL6 protein, with an amino acid sequence shown as SEQ ID No.1 and SEQ ID No.2 respectively, or an equally functional amino acid sequence formed through replacement, deletion, or addition of one or a plurality of amino acids of SEQ ID No.1 or SEQ ID No.2. The expression of soybean anthesis genes GmFTL4 and GmFTL6 can obviously promote a plant (Arabidopis thaliana) to blossom, and shorten an anthesis time and a fertility stage. In addition, the invention can be applied to solve problems of flowering asynchronism in crossbreeding,fertility stage control of various crops, vegetables, fruits and flowers, photoperiod sensitivity, and introduction.

The invention discloses a high-yield radix bupleuri cultivation method and belongs to the field of economic crop planting. Firstly, seeds are soaked with gibberellin and are uniformly mixed with peatsoil, germination is accelerated, the seeds are sowed in a field after the seeds are revealed, and simultaneously the yield and the single-plant quality of radix bupleuri by combining high-density planting and topping measures. According to the method, the radix bupleuri seeds required by field production can be bred in a small space, meanwhile, the manpower and material resources generated by weeding in an early growth period of the radix bupleuri and pesticide effect residues caused by using the herbicide are reduced due to early seedling emergence and closing. In addition, by adopting the method, the harvesting time of radix bupleuri can be shortened by half, the yield of single plants per mu is increased by 33%-66%, and the yield of single roots is increased by more than one time.

The present invention discloses a silkworm excrement cultivation media and a preparation method thereof, and belongs to the technical field of agriculture, wherein silkworm excrement, plant ash, vernicia fordii bran and sand-soil are uniformly mixed according to a volume ratio of 50:15:15:20, stacking retting fermentation is performed for usually 30-40 days, screening is performed after fermentation composting, and then uniform mixing is performed to obtain the silkworm excrement cultivation media. According to the present invention, the main raw material is the silkworm excrement and is rich in the mulberry planting and sericulture area, the silkworm excrement cultivation media can be widely used for planting of vegetables, flowers and other crops, can provide a rich nutrition for crops, and has effects of soil-borne disease reducing, quality and yield improving, solving of the environmental problems of agricultural waste, resource recycling achieving, a certain economic benefit, and a certain ecological benefit.

The invention provides a three-dimensional cultivating method of potato and corn in a dry land and belongs to the three-dimensional cultivating mode technology of crops. In the method, two crops are planted in the same field land along an east-west direction long row in a strip field band shape, a plant band is formed in 140cm width, and two rows of potato are planted in an occupied area of 65 cm width; in the two rows, the row spacing is 40 cm, and the plant spacing is 25cm; film covering is timely carried out after spring sowing is carried out; after the potato is sprouted and when the seedling is abut against the film, the film can be destroyed, and the seedling can be exposed and then is tightly covered and sealed by using soil in a ditch; in the end of March, two rows of early-maturing special corns are planted at the margin of the potato planting soil in 75 cm width; in the two rows, the row spacing is 50cm, and the plant spacing is 30cm; the seedling density per mu is 4000 plants; and after the corn is sprouted and when the seedling is abut against the film, the film can be destroyed, and the seedling can be exposed and then is tightly covered and sealed by using soil in the ditch. Compared with the prior art, the method provided by the invention has the three-dimensional, early-maturing, high-yield and efficient effects; and by using the method, the load of labors can be lightened, the requirement on the labors is reduced, the growth periods of the potato and corn are shortened, and the utilization rate of the soil is improved.

The invention relates to protein related to the flowering time of plants and applications of the protein. The protein is shown as follows: A1) the amino acid sequence of the protein is shown as a sequence 2 in a sequence table; A2) the protein obtained by substituting and/or deleting and/or adding one or more amino acid residues to the amino acid sequence shown as the sequence 2 in the sequence table has more than 90% identity with the protein shown in the A1) and is related to the flowering time of plants; and A3) the fusion protein is obtained by linking the N-terminal or/and C-terminal of the A1) or the A2) and protein tags. An extended protein gene PtoEXPB3 is obtained from populus tomentosa. The gene is introduced in tobacco; and compared with wild type tobacco, the flowering time oftransgenic tobacco flowers can be advanced by 21 days, so that the PtoEXPB3 can have the function of early flowering and can be taken as an important gene resource of the molecular breeding of ornamental plants.

The invention provides a plant growth regulator for improving upper leaf enlargement, nicotine reduction and potassium increase after topping. The plant growth regulator is prepared by taking by weight, 0.001-99.990% of gibberellic acid, 0.001-99.990% of heteroauxin, malonic acid, 0.001-99.990% of 2,4-d, 0.001-99.990% of dimethylformamide, 0.001-99.990% of nonylphenol polyoxyethylene ether and 0.001-99.990% of cyclohexanone, mixing the raw materials with uniformly stirring to prepare mixed solution and mixing, by weight, 60-70% of the mixed solution and 30-40% of potassium dihydrogen phosphate buffer solution with uniform stirring. By spraying the plant growth regulator to upper tobacco leaves, the growth period of a tobacco field is shortened, upper tobacco leaf enlargement, nicotine reduction and potassium increase can be promoted, tobacco leaf output is increased, and ashy tobacco leaves after baking of the upper tobacco leaves can be decreased. Besides, the tobacco leaves are slightly loose in structure, slightly dark, slightly high in gloss and sufficient in aroma, a single upper leaf is slightly heavy, the proportion of high-quality and medium-quality tobaccos is effectively increased, and accordingly economic income of tobacco growers is increased.

The invention discloses a nutrient material for improving soil structure. Raw materials of the nutrient material for improving the soil structure are composed of, in parts by weight, 100-160 parts of river mud, 2-6 parts of ammonium nitrate, 1-5 parts of calcium superphosphate, 2-6 parts of potassium dihydrogen phosphate, 0.1-0.6 part of zinc fulvate, 0.2-0.8 part of EDTA chelated iron, 1-3 parts of zeolite powder, 20-30 parts of fishbone dust, 5-19 parts of decomposed cow dung, 5-12 parts of corn meal, 4-10 parts of limestone powder, 1-6 parts of earthworm cast, 5-10 parts of modified halloysite carbon nano tubes, 4-10 parts of bamboo charcoal, 2-8 parts of medical stones, 1-4 parts of fly ash, and 2-6 parts of quartz sand.

The invention discloses chelated multielement medium-trace-element spraying fertilizer and a preparation method thereof. The chelated multielement medium-trace-element spraying fertilizer comprises, by weight, 40-60 parts of EDTA (ethylene diamine tetraacetic acid) chelated zinc, 40-60 parts of instant boron, 16-24 parts of EDTA chelated manganese, 32-48 parts of compound EDTA chelated trace elements, 19.2-28.8 parts of mineral fulvic acid and 176-264 parts of magnesium sulfate monohydrate. The chelated multielement medium-trace-element spraying fertilizer can provide crops with various mediumtrace elements needed for growth, enhance crop resistance, increase crop yield and increase crop activity; the chelated medium trace elements do not react with substances such as phosphate radicals and sulfate radicals in the soil, and accordingly, soil hardening can be reduced; the mineral fulvic acid can promote photosynthesis of the crops and improve soil nutrients and fertility.

The invention discloses a method for rapidly identifying the purity of rape hybrids indoors. The method comprises the following step of sterilizing rape seeds, specifically, soaking the hybrid seeds with a 0.1% mercuric chloride solution for 10-15 minutes, cleaning the seeds with ddH2O for 2-3 times, carrying out low-temperature vernalization in a bud stage, putting the sterilized seeds into a culture dish paved with three layers of wet filter paper, putting the culture dish into an artificial climate chamber, placing the seeds at normal temperature for 1-2 days until the seeds germinate, putting the germinated seeds exposing white buds into an incubator at 2 DEG C or 4 DEG C, and carrying out low-temperature treatment for 2-3 weeks; and through artificial low-temperature vernalization, increase of the planting density in a seedling stage and increase of the temperature, sunshine duration and illumination intensity in the growth stage, the growth process is effectively accelerated, and the purpose of rapidly identifying the purity of the hybrids is achieved. The method has the beneficial effects that the growth process is effectively accelerated and the purity of the rape hybrids is rapidly identified through artificial low-temperature vernalization treatment of the rape seeds, coordinated control over the temperature, illumination time and illumination intensity and technical measures such as the increase of the planting density, topping and branch reduction.

The invention discloses a lean tobacco floating seedling-raising method. During a tobacco floating seedling-raising process, the bottom of a seedling pool must be flat, water is added into the seedling pool before floating seedling-raising discs are arranged in the seedling pool to perform seedling raising, the depth of the water is 1.0-2.0 cm, the corresponding amount of floating seedling-raising nutriment liquid fertilizer is added into the seedling pool, and the concentration of nitrogen in water in the seedling pool is allowed to be 100 ppm-150 ppm; during the seedling-raising process, once water (nutrient solution) in the seedling pool is used up due to evaporation and absorption (in this time, the seeding substrate must keep wet and not dry), water with the depth of 1.0-2.0 cm and the corresponding amount of nutriment liquid fertilizer are instantly added into the seedling pool, and the concentration of nitrogen in water in the seedling pool is allowed to be 100 ppm-150 ppm, that is repeated till the seedling raising process is finished. The lean tobacco floating seedling-raising method further includes disinfection of the seedling-raising discs, substrate filling, sowing, seedling thinning, temperature and humidity management, leaf cutting and seedling training which are identical to that of the conventional tobacco floating seedling-raising methods. The lean tobacco floating seedling-raising method is lean and can save fertilizers and water, the cultivated tobacco seedlings can germinate and emerge in advance, the whole seedling growth period is shortened by more than 7 days, and the cultivated tobacco seedlings are health and strong and are developed in root systems.