68results about How to "High seed yield" patented technology

The invention relates to a seed coating agent and coated seeds for desert control and aerial seeding, and a preparation method of the agent. The seeding coating agent mainly comprises an inner layer coating agent, a middle layer coating agent and an outer layer coating agent. As the coating method provided by the invention adopts a layered coating technology, not only is the mutual influence among different ingredients of the coating agent alleviated, but also the difficulty caused by the swelling and the adhesion of a water retaining agent which absorbs water in a coating process is avoided; special drying equipment is not needed after the coating is finished, so that the dependence of a traditional coating operation on the drying equipment is avoided; a repellent for birds, rabbits, mice and the like is added to the coating agent, so that the seeds are protected from being eaten while no harm is caused to the environment; and the coated seeds have a high germination rate and can take root rapidly under the action of the water retaining agent and nutrients, so that the seeds for desert control and aerial seeding are promoted to germinate and grow rapidly, and the survival rate of seedlings is remarkably improved.

The invention discloses a breeding method for black and white sweet glutinous hybrid maize. The breeding method for black and white sweet glutinous hybrid maize comprises the steps of selecting ultra-sweet maize, glutinous maize, a common high yield multi-resistance maize-inbred line and the like from different regions to be equivalently mixed, openly pollinating the maize, establishing a basic group A, selecting black glutinous maize germplasm from different regions to be equivalently mixed, openly pollinating the maize, and establishing a basic group B; then carrying out recurrent selection to the properties of seeds of the maize to respectively form a white sweet glutinous maize recurrent selection group A and a black sweet glutinous maize recurrent selection group B, obtaining a serious inbred line through multi-generation inbreeding, and screening a white sweet glutinous maize inbred line 4587 and a black sweet glutinous maize inbred line 3303 through combination ability measurement and cross combination quality identification to obtain 4587 X black 3303 hybrid. The breeding method can ensure both the glutinous and sweet genes of a parent inbred line and the hybrid of the parent inbred line, and also ensure the appearance quality, the favorable edible quality, the stability and the consistency of the hybrid. Moreover, the seeds of the maize are black and white.

Breeding and matching cultivation techniques of a new high-yield and drought-resistant millet variety (Laojinhuang No. 1) with both grain and grass abundance. Its characteristics are: under the natural conditions of nine droughts and windy conditions in ten years, select the mutant grain varieties with short plants, thick necks, wind resistance, drought resistance, and double abundance of grain and grass; the lineage is stable, and the declining lines and mixed lines are eliminated. Seeding, cultivation, high-yield comparative experiments, disease resistance surveys, stable varieties, and selection of the best among the best; after six years and six generations, a new high-yield and drought-resistant millet variety with strong adaptability to the natural climate and soil of the region has been cultivated and tested. (Old Golden No. 1) and supporting cultivation techniques. Using the present invention can reduce millet production cost, increase yield, and increase economic benefits; the yield of millet per hectare can be as high as 6000-6500kg, which is about 3 times that of common millet; The dream of producing more than 1,000 jin of millet per mu is of great significance to the adjustment of the planting industrial structure, the development of grain production, and the improvement of farmers' income in this region.

The invention relates to a seed germination control drought-resistant coating material, a coated seed and a preparation method thereof. The coating material mainly comprises an inner layer of the coating material (a water-retaining layer), an intermediate layer of the coating material (a buffer layer) and an outer layer of coating (water control layer). The water-retaining layer contains a water-retaining agent and can play functions of water storing and water retaining; on the one hand, the buffer layer can smoothen and round the surface of the water-retaining layer so as to wrap the water control layer, and on the other hand, the buffer layer can absorb a small amount of water which permeates the water control layer due to the water solubility; the water control layer cannot dissolve in water but can swell to control the pore sizes of water passing pore passages so as to control the water feeding. When the rainfall is small and cannot enable seeds to germinate into seedlings, a micro amount of water permeates the water control layer, then is absorbed by the buffer layer and the water-retaining layer but does not enter the seeds; when the rainfall is abundant, a large amount of water permeates the water control layer, at the moment, the buffer layer is completely corroded, the water-retaining agent absorbs water to rapidly expand so as to break the water control layer, so that the seeds start to absorb water to germinate and successfully grow into the seedlings under the action of the water-retaining agent.

A wheat variety designated W020189J1, the plants and seeds of wheat variety W020189J1, methods for producing a wheat plant produced by crossing the variety W020189J1 with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety W020189J1 with another wheat line or plant, and the creation of variants by mutagenesis or transformation of variety W020189J1. This invention also relates to methods for producing other wheat varieties or breeding lines derived from wheat variety W020189J1 and to wheat varieties or breeding lines produced by those methods.

The invention discloses a breeding method of a novel group PLR germplasm of corn. The method comprises the steps of selecting well-performing hybrids from temperate production, namely hybrid F1-F2 generation germplasms in the modes of Reid*PB group and Reid*Lan., respectively breeding selfing lines and measuring combining ability; and constructing the PLR group germplasm by utilizing the R/P and R/L selfing lines with high combining ability and complementary agronomic traits. The method has the beneficial effects that the early generation selection and the S3-S4 generation haploid breeding areadopted; according to the method, the plant type, the resistance, the panicle traits and the like are strictly selected in flowering and harvesting periods and a batch of excellent selfing lines arebred; barren ear tips are reduced; the resistance, the combining ability, the tip sealing property, the seed-producing rate, the dehydration property and the adaptability are increased; and the prepared hybrids can meet the production requirements.

The invention belongs to the technical field of corn breeding, and particularly relates to a breeding method for an inbred-line new strain of high-yield multi-resistance high combining ability corn. According to the breeding method, the inbred-line new strain of the high-yield multi-resistance high combining ability corn is bred through selfing of optimal plants of a corn strain PS group. The breeding method has the advantages that the PS group serving as a basic breeding material has high resistance, high appearance quality and high fecundity, and cyclic breeding and high-density selection stress strategies are adopted, so that the obtained SP221 integrates excellent traits such as high yield with multi-resistance and high combining ability, and can be applied to preparation of good cornhydrids and served as a basis material for corn variety improvement.

The invention relates to an agrobacterium rhizogenes mediated spraying decoration transgenosis method. In the method, a process that the agrobacterium rhizogenes suspension is directly sprayed on the stamen before pollen-shedding stage and the stamen in the pollen-shedding stage under the condition of living body in the field environment is adopted, thus having simpler operation and avoiding the damage to the organ of flower at the same time. Calculated as the number of the transgenosis plant/transforming flower, the transformation efficiency in the cotton can be 10%. The method of the invention has great practical application value in the plant genetic transformation and molecular breeding. The transforming material used in the invention can be Malvaceae cotton, or monocotyledonous and dicotyledoneae seedling plants such as rice, corn, wheat, soybean, rapeseed plant, cucumber, tomato, tobacco, fruit trees, forest, flowers and officinal plants and the like, and has a certain application value in the genetic transformation and molecular breeding of the monocotyledonous and dicotyledoneae seedling plants.

The invention discloses a breeding method of temperate and tropical corn selfing line QB446. The breeding method includes: using the F1 generation hybridized by a tropical Suwan1(C11) colony materialand temperate Lancaster material representative line Mo17 as the base material, and using a natural selection method and a manual selection method to mutually improve the two materials and perform section. The method has the advantages that the advantages of the two materials are integrated, and the excellent selfing line which is good in resistance, high in seed output rate and good in quality; the breeding procedure is simple, easy in operation, high in success rate and low in manpower and material source consumption as compared with large colony selection; the QB446 bred by the method is high in combining ability, moderate in growth period, high in seed output rate, good in quality, high in disease resistance, fast in dewatering, many in ear rows, thick in ear, widely applicable and thelike.

The invention provides an economical and efficient production method of a tobacco male sterile first generation hybrid seed. The method includes: at an altitude of less than 700 meters, under the climate conditions meeting the requirements of early vegetative growth and later reproductive growth of tobacco plants, conducting seedling culture on a maternal tobacco plant and a paternal tobacco plant separately, then employing isolation planting, performing topping on the maternal tobacco plant, then collecting paternal pollen and preparing pollination, during pollination, adding starch and blending them, adopting an artificial pollination pen or pollination gun to perform pollination, carrying out deblossoming on the maternal tobacco plant both before and after pollination, and when the capsule pericarp browning reaches more than 80%, conducting single fruit harvesting in batches and performing drying, then conducting threshing processing to obtain the male sterile first generation hybrid seed. The method provided in the invention has the advantages of reasonable design, low production investment, and high seed yield. On the basis of ensuring a variety purity (99%) and a seed germination rate (95%), maximization of a high-quality germplasm propagation coefficient is realized, the seed yield is greatly improved, and the seed production cost is decreased significantly.

The invention provides a high-yield cultivation method for Paeonia ostii. The high-yield cultivation method is characterized by comprising the following steps: land preparation: a step of selecting aland parcel, spreading miscellaneous manure, deep plowing soil, and raking the soil level; seedling preparation: a step of selecting seedlings, carrying out bunching, soaking roots, carrying out sterilizing, and drying the seeds in the shade for planting; planting process: a step of carrying out ditching and seedling distribution, applying a fertilizer, carrying out soil covering and ridging, andmulching a film; stumping treatment: a step of removing the film, carrying out stumping and weeding, applying a fertilizer, carrying out soil covering and ridging, mulching a film, rupturing the mulching film so as to expose seedlings, fixing stems, carrying out sealing with a film, applying a fertilizer so as to strengthen stems, and cultivating branch buds; high-yield management: a step of applying a root fertilizer in autumn, carrying out lopping, remaining stubble to grow, cleaning an orchard, carrying out sterilizing, applying a foliage fertilizer before flowering, carrying out intertillage, weeding and furrowing, applying a foliage fertilizer in a fruit swelling period, preventing flood, and draining waterlogging; and harvesting and processing: a step of harvesting fruit pods, removing pods, drying seeds in the sun, carrying out packaging with bags, and carrying out warehousing. The high-yield cultivation method for Paeonia ostii provided by the invention reduces the cost of seedling purchase by about 800 yuan per mu, and increases the yield by 20% or more.

The invention discloses a breeding method for improving the seed yield of Chinese horse chestnut. The method comprises the following steps: picking seeds which are spherical in capsules, flat-topped, slightly concave, and yellowish-brown from wild Chinese horse chestnut in Qinling mountains in September-October; performing pest control and anti-bacterial treatment on the picked seeds, and storing the treated seeds in sand at a temperature of 0-5 degrees until March-April of next year; digging ditches in seedbeds that are subjected to organic fertilizer application, sterilization and insect killing, and burying seed umbilici in the ground downwards by 3-5cm and performing covering with mulch films; sprouting the seeds in 12-16 days and releasing seedlings; transplanting out the seedlings with straight and long stems and good shapes after the seedlings grow to the next spring, and grafting the branches with more flowering and high seed yields to the seedlings with short and curved stems and bad shapes. The method greatly improves the seed yield of the Chinese horse chestnut while improving the emergence rate of the Chinese horse chestnut and shortening the flowering and seed-producing periods. The method enables the seed yield of triennial Chinese horse chestnut to be 2kg or above and the seed yield of pentaennial Chinese horse chestnut to be 7 kg or above.

The invention discloses a breeding method for a eurytopic and new corn species with good quality and high yield. Concretely, the corn strain 7239 and CML285 are hybridized, and seeds of S1 generation are obtained. After selfing of optimized strains, the corn strain gui 39722 is obtained. At the same time, after selfing of optimized strains of the corn strain Swan (late) C4, the corn strain guizhao 18421 is obtained. The Gui 39722 as a female parent and Guizhao 18421 as a male parent are hybridized, and the eurytopic and new corn species guidan 0810 with good quality and high yield is obtained. The breeding method is characterized in that the male parent and the female parent have good characters and high cooperation; the obtained guidan 0810 has high yield, strong resistance, good quality and wide adaptability; the obtained guidan 0810 is especially suitable for planting in the whole Guangxi, and also suitable for planting within certain realms of South China, Southwest China and some nations in Southeast Asia.

The invention discloses a breeding method of a dwarf corn selfing line 13H280. A basic material is built through (08H67-1*07092)* Zheng 58 group to obtain S0; S1 is obtained after the selfing pollinating until the corn mature harvesting; then, line selection and strain selection selfing is continuously performed for four generations; in the generation S4, 10 strains are selected to be subjected to selfing at 6 o'clock in the afternoon on the last day; before 7 o'clock in the morning on the second day, a prepared 0.05 percent EMS solution is dripped to the flat opening part on the top of female ears until the solution does not seep; after one hour, the solution is repeatedly dripped once; in the autumn, seeds of 10 harvested ears are mixed; in the year, the dibbled planting is performed in Hainan according to the planting density being 120,000 strains/hectare for 0.03 hectare; dwarf plants are found in the group for selfing; during the planting in the second year, the harvested plants have the stable inherited characters, the dwarfing is realized, and 13H280 is obtained. The corn selfing line 13H280 obtained by the method has the advantages of fertilizer and water resistance, good drought-enduring performance, compact strains and strong falling resistant capability.

The invention relates to a method for breeding high and low generations of maize inbred lines, which relates to a method for obtaining improved varieties by hybridization, in particular to a method for obtaining new maize inbred lines for cycle improvement. Its purpose is to provide a method for breeding high-quality corn with good resistance. The method for breeding high and low generations of corn inbred lines of the present invention comprises: crossing corn variety 5599 with 6WC to obtain F1 generation; then self-crossing to obtain F2 generation; crossing 5 ears of F1 generation with 25 ears of F2 generation to obtain 125 F3 generations Sister crossed ears, the F3 generation was continuously selfed and screened to obtain improved varieties. The breeding method of the invention ensures that the prepared hybrid has the characteristics of good quality, strong stress resistance, wide adaptability and good commerciality. The invention is used in the field of breeding of new varieties of crops.

The invention discloses a corn population artificial synthesis method for genetic breeding. The invention aims to breed a corn species having the advantages of high yield, wide application range, strong disease resistance, and quick dehydration, moreover, the corn should be simply or mechanically cultured and harvest in production in mountainous region of southwest China; and the group is established by selecting the advantages of germplasm materials and carrying out multi-stresses of high strength and multi-area complicated ecological environment stress. The tropic corn Suwan germplasm is themain material, the shortages of the tropic corn Suwan germplasm such as slow dehydration, low seeding rate, bad economical character, and the like are overcome; hybrid seeds suitable for future production are obtained; and the method has an important meaning for the corn breeding and genetic research in the mountainous region of southwest China.

Provided is an accelerated breeding method for licorice seeds. The licorice fruit bearing period is shortened, and enough seeds are provided for artificially planting licorice. The accelerated breeding method for licorice seeds comprises the steps that triennial licorice principle roots are taken as licorice seedlings; a land parcel with irrigation arable soil or sandy soil is selected; the licorice seedlings are planted in a wide and narrow row spacing planting method; after the licorice seedlings are planted, a drip irrigation zone is laid beside a licorice seedling zone, and covered with a black mulching film; in the key breeding period of the licorice seedlings, drip irrigation water is applied once every 20 days, the drip irrigation amount is 20 m<3> each mu each time, and the number of total drip irrigation times in a year is 8-10; after 80% licorice pods in the licorice seed land are mature, a hay mower is used for harvesting at a time, and threshing and airing are carried out in time. By means of the breeding method, the breeding period of licorice can be 2-3 years earlier, the seed yield is increased by 2 times or above, the worm damage rate of the seeds is controlled to be within 5% and is reduced by 15% or above compared with that of wild seeds, the seed germination rate is greatly increased, and the seed germination potential is greatly improved. Meanwhile, the pressure that licorice seeds rely on wild seeds for a long time can be relieved, the wild licorice genetic resource can be protected, and artificial destruction on the environment is controlled.

A wheat variety designated W020088N1, the plants and seeds of wheat variety W020088N1, methods for producing a wheat plant produced by crossing the variety W020088N1 with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety W020088N1 with another wheat line or plant, and the creation of variants by mutagenesis or transformation of variety W020088N1. This invention also relates to methods for producing other wheat varieties or breeding lines derived from wheat variety W020088N1 and to wheat varieties or breeding lines produced by those methods.

The invention discloses a seed production method of Liyu No. 35 Hybrid Maize. The method selects the inbred line L5895 as the female parent and the inbred line 912 as the male parent and makes up the Liyu No. 35 Hybrid Maize. The inbred line L5895 is obtained by combination crossbreeding of Zheng 58 * Mo 17, selecting Zheng 58 as the recurrent male parent and backcrossing for three generations and self-breeding for five generations. The inbred line male parent 912 is obtained by the seed selection of self-breeding for six generations of Chang 7-2 outcrossed variant. The method solves the problem of the stress tolerance of the medium-size spike variety and harvests the new species of the Liyu No. 35 Hybrid Maize characterized in high and stabilized production, high disease and knock-down resistance, proper maturation period and wide applicability.

A wheat variety designated W010098F2, the plants and seeds of wheat variety W010098F2, methods for producing a wheat plant produced by crossing the variety W010098F2 with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety W010098F2 with another wheat line or plant, and the creation of variants by mutagenesis or transformation of variety W010098F2. This invention also relates to methods for producing other wheat varieties or breeding lines derived from wheat variety W010098F2 and to wheat varieties or breeding lines produced by those methods.