59 results about "Long day" patented technology

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 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 belongs to the technical field of flowering phase regulation and discloses a flowering phase regulating method for delaying flowering time of cuckoo. The flowering time of cuckoo is delayed by regulating the flowering phase in the squaring stage by means of a method of joint action of shading and abscisic acid. The light period is an important induction factor for blossoming of plants and is the most direct and effective outer factor for inducing bud formation. Mitogenetic action and blossoming of flowers can be induced as each plant need a certain length of day and correspondinglight length mutual alternation, and the flowering phase is regulated by controlling the lighting period. The abscisic acid is a substance for inhibiting growth of the plant, can promote ageing, dormancy and organ falling of ornamental plants, and can place the action of short-day and promote or inhibit blossoming of the ornamental plants. The cuckoo is a long-day plant and can generate buds andblossom by requiring more than 12 hours lighting commonly, so that the flowering time of the cuckoo is regulated by controlling the lighting period and the abscisic acid, and the demand on the flowering time of the cuckoo in the market is met.

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.

The invention discloses a potting method for myosotis sylvatica. The method includes steps of sowing and seedling raising, paclobutrazol spraying at a seedling stage, potting, pinching, fertilizer and water management, temperature and light regulating and controlling and the like. According to the potting method for the myosotis sylvatica, by means of hormone regulation and combination with manual pinching, multiple branch development can be facilitated, and compact and attractive plant shape can be maintained. 1-2 month low temperature stage is required for flower bud differentiation of the myosotis sylvatica, for instance, after flower bud differentiation, temperature and light are two main factors which influence flowering of the myosotis sylvatica, flowering of the myosotis sylvatica can be facilitated by the aid of long day and certain temperature, thereby, flower bud differentiation can be achieved in advance through low temperature treatment at the seedling stage, by means of increasing of illumination time and temperature controlling at a later stage, flowering can be achieved early, the number of flowers is increased, flowering time is prolonged, and the myosotis sylvatica can appear on the market at spring festival.

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.