59 results about "Long day" patented technology

Long-day onion plants, capable of producing onion bulbs comprising ‘high soluble solids’ combined with a ‘sweet taste’ as a result of low pungency, are provided, as are methods for producing such plants, bulbs and seeds. Such onions can be stored for long periods without a loss in quality and without an increase in pungency.

The invention discloses a breeding method for a hybrid rice, particularly relating to a method of getting the cytoplasm male sterility three lines from the photo temperature sensing nucleon sterility line; comprising: choosing the photo temperature sensing nucleon sterility line and high quality rice cytoplasm male sterility keeping line for crossing, planting the filial generation in the high temperature and long day to charge off the photo temperature sensing nucleon sterility genes, separating the cytoplasm male sterility recovery line from the filial generation through the test-mating of cytoplasm sterility line, getting the rice cytoplasm male sterility line and recovery line respectively by carrying out the backcross and auto-copulation at the same time. In this method, the introducing the sound characteristics of the photo and temperature sensing nucleon sterility line such as the straight strain and high chapiter exposing rate to the keeping line, promotes the improvement of the cytoplasm male sterility line and establishes a mew way of generating the cytoplasm male sterility line, and at the same time overcomes the shortage of fertility of the rice photo and temperature sensing sterility line easy to be influenced by the light and temperature environment, which is favorable to increase the hybrid rice seed purity and the seed production.

A method for culturing the seeds of photosensitive and thermo-sensitive male sterility line of high-temp sterile or long-day high-temp sterile rice includes such steps as choosing male parent and female parent (photosensitive and thermo-sensitive sterility line), sowing, irrigating with cold water when the ambient temp is higher than the critical temp of fertility transform, hybridizing, growing and harvesting.

The present invention provides an isolated nucleic acid including a nucleotide sequence encoding COL8, which controls hypocotyl length and flowering time in a plant. It is found that plants over-expressing COL8 under long day conditions show slight hypocotyl elongation and delayed flowering in comparison with the wild type. In addition, COL8 and FKF1, which is a circadian-clock related gene, are found to be localized at the same site in a plant cell, indicating the existence of an interaction between the two.

The invention relates to isolation and cloning of paddy rice photoperiod sensitive genic male sterility gene pms1 and applications thereof. The pms1 gene has only one transcript PMS1T, which is a non-coding long-chain RNA. There are insertion / deletion variation as long as 65 bp and two mononucleotide mutations between different alleles of the gene, wherein the sequence of a dominant allele of the pms1 is represented as the SEQ ID No.4 and the sequence of a recessive allele is represented as the SEQ ID No.3. By means of the insertion / deletion variation and one mononucleotide mutation, two molecular markers of the paddy rice photoperiod sensitive genic male sterility gene pms1 are obtained. The dominant allele of the pms1 can reduce the setting rate of NIL (MH) under long-day condition, while excessive expression on total-length or shortcut PMS1T also can reduce the setting rate of NIL (MH) under long-day condition too, so that by inhibiting the expression of the PMS1T in a photoperiod sensitive genic male sterile line Nongken 58S, the fertility of the Nongken 58S can be recovered. The isolation and cloning of the gene has important utilization value for selective breeding and improvement of a novel paddy rice photoperiod sensitive genic male sterile line.

A long day plant cultivated for commercial production of flowering-shoots, flowering pots, flowers, seeds or fruits is provided. The long day plant overexpresses a phytochrome protein such that the flowering-shoots, flowering pots, flowers, seeds or fruits thereof develop under substantially shorter natural days and lower sun irradiance than those required for development of the flowering-shoots, flowering pots, flowers, seeds or fruits in a similar long day plant not over expressing the phytochrome protein.

The invention discloses an application of a rice heat stress transcription factor OsHsfA2b in late-maturing and high-quality variety cultivation with seed storage tolerance. In the invention, an inventor finds that a mutant strain is flowered later than a wild type plant respectively under the long-day, short-day and mid-day conditions through constructing the rice mutant strain of the over-expressed OsHsfA2b, the seed germination and sprouting of the mutant strain are restricted and even the mutant strain has no sprouting capability. According to the result, an available novel gene resource is provided for a novel rice variety with late maturity, high quality and seed storage tolerance.

The invention belongs to the technical field of science and engineering, in particular to a propagation method for rice dual-purpose genic male sterile line seeds with the pattern of high-temperature sterile, low-temperature fertile or long day high-temperature sterile, short day low-temperature fertile. The technique of the method includes: (1) a propagation base is required not only to meet the need of normal growing development of the conventional rice, but also to have sufficient water source at temperature of 17-19 DEG C and plant no other rice variety in the periphery of 300m; (2) the seeding dates of the first rice crop are arranged on March,15th-20th, (3) the water temperature of the field is maintained between 20-21 DEG C for continuous 15 days from the fourth period of the differentiation of the first young ears, an irrigation depth is based on young ears submergence and the growth process of the young ears to irrigate from shallow to deep until the depth is up to 20m; (4) the stubble height of rice stub after first harvestry is 20-25cm, the water temperature of the field is maintained between 20.5-21.5 DEG C for continuous 16-20 days from the fourth period of the differentiation of the second young ears, the irrigation depth is up to 28cm from shallow to deep; (5) abnormal plants and inferior plants are strictly removed. By specifying the technique, the purpose of producing high-yield, high-quality and high efficiency rice dual-purpose genic male sterile line seeds can be achieved.

Long-day onion plants, capable of producing onion bulbs comprising ‘high soluble solids’ combined with a ‘sweet taste’ as a result of low pungency, are provided, as are methods for producing such plants, bulbs and seeds. Such onions can be stored for long periods without a loss in quality and without an increase in pungency.

The invention provides application of a gene OsCOL16 to control of a rice heading stage. The gene OsCOL16 is derived from a rice variety Nipponbare, a cDNA sequence of the gene OsCOL16 is as shown in SEQ ID NO:1, and the gene OsCOL16 codes B-box / CCT zinc finger protein with 448 amino acids and belongs to a CONSTANS-like transcription factor gene family. According to genetic transformation experiments, overexpression of the gene OsCOL16 inhibits rice heading under both short-day and long-day conditions; according to further researches, the gene OsCOL16 is in day-night rhythm expression and located in cell nucleuses and has transcription self-activation activity, and expression of Ehd1, Hd3a and RFT1 is inhibited by up-regulation of Ghd7 to finally delay heading delay.

The invention relates to a sesame photoperiod sensitive genic male sterile line and a hybrid seed production method thereof. The sensitive genic male sterile line Sipsms3041 is preserved in China Center for Type Culture Collection (CCTCC) on Nov.25th, 2014 and the preservation number of the sensitive genic male sterile line is CCTCC NO:P201413. The invention also discloses the hybrid seed production method of the sesame photoperiod sensitive genic male sterile line. According to the invention, the photoperiod sensitive genic male sterile line materials which are shown sterile under the long-day condition are used as female parents and the photoperiod sensitive genic male sterile line materials and male parents are planted at intervals to carry out hybrid seed production; hybrid seed purity of sesames obtained from the sterile line reaches over 95 percent.

The present invention includes long-day onion plants comprising bulbs having low pungency and methods for obtaining such onions. The present invention also provides reagents and materials that can be used in the methods for obtaining such onions.

The invention belongs to the technical field of plant genetic engineering, and particularly relates to a rice histone acetyltransferase gene, encoding protein functions and applications thereof. The invention discloses the rice histone acetyltransferase gene OsELP3, which is related to plant florescence. Under long-day sunlight, overexpression of the gene can bring rice blooming forward, and inhibition of the gene expression can delay rice blooming. After being processed under short-day sunlight, mutant phenotype of an inhibiting material is recovered to be wild. Analysis discovers that the OsELP3 gene can influence the expression levels of three blooming genes Hd3a, Hd1 and OsGI, and take rhythmic variation of self expression under short-day sunlight. The Western Blot experiment analysis shows that the gene has the histone acetylation function and the functionary locus on H3K9.

The present invention provides a structural heating ventilation field, providing a ''pre-cast maintainable low-temperature radiation cold supply and heating system, capable of resolving the problem of non-maintenance of the floor heating system once leakage. The system overcomes faults of cockamamie site operation, long days for construction. The system provides ideal end system to comfort heat supplying in winter and cooling in summer to floor source heatpump. The invention creates split pre-cast process and reversed collecting flexibly parallel mounting process, simplifying construction process. The system particular makes convenience to mounting of top cold supplying system, also creating wide market prospect of mass production of the floor heating system. The BMB dampproof insulating process makes dampproof thermal and energy saving effect more excellence. The creative maintenance groove structure conveniently and exactly clears fault, quickly recovers heating supply. Figure 4 is the installation schematic diagram of the floor heating system. 1 is a maintenance groove, 2 is a pre-casting pipe coil, 3 is a flexible pipe coil, 4 is a direct insertion movable joint. 5 is a direct insertion three-way.

The invention relates to a novel breeding method for establishing a hybrid rice dual-purpose maintainer line. A photo-sensitive rice male sterile line used as a female parent is hybridized with a cytoplasmic male sterility maintainer line; and after replacement and self-crossing selective separation, not only a photo-sensitive recessive nucleus male sterile gene but also a cytoplasmic male sterility maintainer gene are established. On the conditions of long day and high temperature, the sterility is controlled by the photo-sensitive male sterile gene; on the conditions of short day and low temperature, the sterility is controlled by the cytoplasmic male sterility gene, thus solving the problems that a cytoplasmic male sterility line is affected by high temperature and fertility and abortion are not thorough. The invention integrates the cytoplasmic male sterility maintainer gene with the photo-sensitive male sterile gene leading to one line in two uses, and the risk that due to abnormal temperature fertility and abortion are not thorough in the process of production of hybrid rice parent sterility maintainer line can be avoided, thus ensuring the safety for producing hybrid rice seeds and multiplying parental seeds.

Long-day onion plants, capable of producing onion bulbs comprising ‘high soluble solids’ combined with a ‘sweet taste’ as a result of low pungency, are provided, as are methods for producing such plants, bulbs and seeds. Such onions can be stored for long periods without a loss in quality and without an increase in pungency.

The invention relates to the technical field of goose crossbred production, in particular to a method for efficiently producing high-quality meat type crossbred goose seedlings by enabling large-size low-reproductive-performance goose breed (a male parent) to crossbred with medium-and-small-sized high-reproductive-performance goose breed (a female parent), wherein the male parent is a short-day bred goose breed comprising Eastern Zhejiang white geese, Western Anhui geese, lion head geese, baisha crossbred goose, and the like. The female parent is a long-day bred goose breed comprising Yangzhou geese, Huoyan geese, Zi geese, Sichuan white geese, roman geese and the like. By carrying out long-short two-stage illumination regulation on the male parent and carrying out long-short-relatively-long three-stage illumination regulation on the female parent, so that the male parent and the female parent synchronously enter a reproductive stage, and therefore, the problems that the long-day bred goose breed and the short-day bred goose breed are difficult to breed as a result of staggered breeding seasons and are low in breeding rate are overcome, and therefore, normal breeding of the two goose breeds is realized, and crossbred production performance is improved; and illumination regulation is combined to carry out goose anti-season breeding production, so that an efficient production technical system of high-quality crossbred geese seedlings is established.

The invention relates to a method for calculating the high temperature risk level of corn based on air temperature data, comprising: collecting and recording the ambient temperature every predetermined time interval; comparing with the preset temperature and recording the difference of the ambient temperature value greater than the preset temperature; The daily high temperature index is obtained by summing the difference between the ambient temperature value of the set temperature and the duration of the ambient temperature value greater than the preset temperature; the daily high temperature index is graded and quantified to obtain the high temperature index grade. The present invention calculates the high temperature duration and the number of high temperature days by hourly temperature data, obtains the high temperature index of the next day, compares the high temperature index classification standard and the high temperature index reclassification standard, obtains the final high temperature index grade of the day, and obtains the daily high temperature index grade through interpolation analysis. The high temperature risk distribution map of month, quarter and year can quickly obtain the distribution of severe high temperature areas, provide support for the avoidance of agricultural disasters, provide evidence for agricultural activities, and improve the efficiency and accuracy of farming.

Disclosed is a greenhouse cultivating and managing method of spring peach trees. A greenhouse is 80 meters long and 9 meters wide. Inside the greenhouse, three rows of ridges are arranged and trees are cultivated by high-yield close planting. The row distance is 4 meters, the plant distance on two lateral rows is 1 meter and the plant distance of the middle row is 0.5 meter. Every year, spring peach trees have sixty days of hibernation period, and mulching film is set after Great Cold; in the very days of heavy snow, snow should be removed in time to protect the greenhouse; in the long days of cold and low temperature, the greenhouse should be covered with a straw mat to keep warm or heated; according to the weather of the very day, temperature is controlled at proper time, and doors and windows of the greenhouse can be opened and closed in time. According to thermometers and hydrometers in the greenhouse, opening degrees and height of the doors and the windows can be controlled, and weather conditions, wind direction and power level of the very day can be recorded. In the first fruiting period and the ripening period, aphid damage can be timely prevented by black-light lamp trapping instead of chemical pesticide. Microelements are added. By the end of April of the lunar calendar, the mulching film of the greenhouse is removed to receive sufficient sunlight and accelerate fruit ripening, and fruits can be harvested.

The invention discloses a method for inducing bolting and flowering of common head cabbages by grafting under artificial climate conditions. The method includes the steps: firstly, selecting proper scions and stocks; creating strong-illumination and long-day total environments with proper temperature difference after grafting; performing proper management after scion common head cabbage stem tipsspend a seedling recovery period; finally, artificially pollinating the scion common head cabbages. The stem tips of the common head cabbages G27 serve as the scions, 49 Chinese flowering cabbages easily bolting serve as the stocks, the common head cabbage stem tips are grafted on rachises of the Chinese flowering cabbages, operation is more convenient, pollution can be decreased, and grafting survival rate is increased. In addition, the 49 Chinese flowering cabbages easily form side mosses, and more stock sources can be provided for grafting. After grafting, strong radiation treatment is performed, the stem tips can be promoted to form chlorophyll, and growth of the scions can be accelerated. Induction of bolting and flowering of the scion common head cabbages can be accelerated by long-day treatment. According to the method, the scion common head cabbages can be promoted to form inflorescence 26 days after grafting at the soonest.

The invention aims to provide a method for breeding first generation of hybrid of tillered-onion. According to the key technology, a sterile line and a selfing line which accord with the breeding objective are selected through multi-generation artificial selfing, segregation of characters and individual plant selection on the basis of widely collecting high-quality farm variety of tillered-onion. According to the requirement of the breeding objective, a two-line hybrid breeding technology is adopted, and a high-yield combination of the tillered-onion with strong advantages is matched. The novel variety of the tillered-onion is a first generation of hybrid formed by hybridizing by taking a male sterile line MF02-1-53A as a female parent and taking a selfing line WMF01-10-07-542C as a male parent. Compared with a local farm variety, the variety has the advantages that the chlorisis is delayed by about 7 days; the disease resistance is high, and the rotten onion incidence is low; the average output is 2591kg in every 667square meters, and the yield is increased by 17.5 percent compared with that of the reference farm variety. The variety is low-temperature-resistant, is suitable for growth under medium and short day conditions, enters lodging and dormancy states under long day and high temperature conditions, has the growth period being about 130 days and is suitable for cultivation in Heilongjiang, Jilin, Liaoning, Shandong and Inner Mongolia of China.

The invention belongs to the field of metal matrix composite, and relates to a frequency spectrum harmonic wave treatment method for improving dimensional stability of an aluminum matrix composite. The method is characterized by comprising the following steps of carrying out frequency spectrum analysis on the aluminum matrix composite through a Fourier analysis method so as to optimize five harmonic frequencies with best effect and two alternative harmonic frequencies, applying proper energy for treatment during a proper time according to five harmonic frequencies in sequence, if resonant frequency occurs, tripping the resonant frequency to treat the next frequency, and overlapping multi-direction dynamic stresses generated by vibration and residual stress in multidimensional allocation so as to cause plastic deformation, so that the purposes of lowering peak residual stress and homogenized residual stress and improving dimensional stability are realized. According to the method, the defects of low efficiency, long days for manufacturing, large energy consumption, and high cost of the traditional thermal aging treatment are overcome sharply, and the equipment occupies small area, is light in weight, is easy to carry, and is not limited by volume of workpieces.

Long-day onion plants, capable of producing onion bulbs comprising ‘high soluble solids’ combined with a ‘sweet taste’ as a result of low pungency, are provided, as are methods for producing such plants, bulbs and seeds. Such onions can be stored for long periods without a loss in quality and without an increase in pungency.

The invention belongs to the technical field of plant transgenic engineering, and particularly relates to application of histone transmethylase gene in regulating and controlling a rice flowering period and a fringe type. The histone transmethylase gene SDG711 is obtain by cloning, and the nucleotide sequence is shown in SEQ ID NO: 1. Through the method of double-strand RNA inhibition, transformation rice corresponding to the histone transmethylase gene is obtained, the phenomenon that the flowering time of the plant is brought forward for about 2 weeks under a long-day condition after the histone transmethylase gene is inhibited is discovered, and the fringe type of the plant is much smaller than that of a wild plant. A detection to the modification condition of the transgenic histone of the transgene shows that the methylation and trimethylation levels of the histone H3K27 of the transgenic plant are obviously changed. By regulating and controlling the rice histone methylated modification and affecting the flowering time and fringe size of rice, the histone transmethylase gene SDG711 can affect the output of the rice.

Provided is a breeding method for two lines hybrid rice based on the rice mutant osms4 (Oryza sativa male sterile 4), which was originally selected from the mutagenizing seeds of japonica cultivar 9522 with 60Co gamma ray, and the stable inheritance osms4 mutant was obtained after three generations backcrossing, which is regulated by a recessive single gene OsMS4. The invention is related to the usage of OsMS4 gene (also known as Carbon Starved Anther, the CSA gene), osms4 mutant can be used as male sterile line under short day condition in both japonica and indica background, which grows abnormal anther with defection during second mitosis stage and produces completely sterile pollen. While under the long day condition, the osms4 mutant can be used as maintainer liner and produces normal pollen.