119results about How to "Increase grain weight" patented technology

The invention relates to the technical field of plant genetic engineering and discloses clone and application of semi-dominant gene qGL3 capable of controlling grain length and grain weight of rice kernel. In the invention, a main-effective QTL (quantitative trait loci) SEQ ID NO:1 which is capable of simultaneously controlling the grain length and grain weight of rice kernel and a semi-dominant allelic gene SEQ ID NO:3 having advantageous function are separated and cloned; the two genes have the capacities of modifying the yield and appearance quality of rice; and at the same time, the two homologous genes of the two genes in rice are cloned and a fact that the two homologous genes have regulation effect on the length of rice kernel as well is proved. Thus, the gene qGL3 and the advantageous allelic gene qGL3-D thereof as well as the two homologous genes of the gene qGL3 all can be applied to crop genetic modification.

The invention relate to a rice long-grain related gene and an application for the same, and in particular discloses a rice long-grain related gene GL3 for the first time via researches on lots of rice quantitative trait loca, which is used for encoding serine/threonine phosphatase. Compared with a GL3 protein in a small-grain parent, a GL3 protein in a long-grain/large-grain parent has the mutations of amino acids, thus being declined in the phosphatase activity. The invention further relates to a GL3 mutant protein with a declined enzymatic activity, the encoding sequence thereof, and an application for the GL3 mutant protein in the aspects of modifying crops to increase grain length and crop yield, and the like.

The invention discloses an application of a soybean transcription factor GmbZIP336 and a soybean transcription factor GmbZIP336 encoding gene in the regulation of the grain weight of a seed. The thousand-seed weight of transgenic Arabidopis thaliana grains obtained by transfering GmbZIP336 gene to wild Arabidopis thaliana is substantially higher than that of wild Arabidopis thaliana, so a GmbZIP336 protein has an up-regulation effect on the grain weight of the seed, and over-expression of the GmbZIP336 encoding gene improves the seed weight of transgenic genes without influencing the normal growth of the plants. Experiments prove that the GmbZIP336 protein can be used as a target gene for improving the seed output of the plants, and has important application values in the field of plant breeding.

The invention relates to a kind of pelleted coating powder of Chinese pine seeds. The powder comprises the following components in parts by weight: 97.3-97.75 parts of bentonite raw ore powder, 2 parts of talcum powder, 0.05-0.2 part of aspirin, 0.2-0.5 part of potassium dihydrogen phosphate, 0.0005-0.001 part of kinetin (KT), 0.0001-0.0005 part of NAA. The pelleted coating powder uses bentonite raw ore powder as main powder; and the substances such as aspirin (acetylsalicylic acid), kinetin (KT), potassium dihydrogen phosphate and water retaining agent which can be used to promote seed germination, increase drought resistance and promote seedling growth, are added properly. After the coatings are pelleted, the volume and grain weight of the Chinese pine seeds can be increased, aerial sowing drifts can be reduced, the seeds can sprout in advance, the germination energy can be increased, the damages caused by birds, beasts and rats can be reduced and the seedling rate can be increased.

The invention provides an integrated cultivation method for wheat and corn. The integrated cultivation method comprises the steps of seed selection, land preparation, sowing and fertilization. The wheat is uniformly sowed in a ridgeless way at the sowing width of 45cm, the equal row interval of 25cm is adopted for sowing between the sowing widths of the wheat, wherein the corn seeds are sowed in the row interval of 25cm and are sowed by using the seeding method of single-seed strip cropping or alternate sowing of single and double seeds in each hole, and the equal row distance of 70cm is used. In the wheat sowing method, the current arable area is fully utilized, the strip cropping is changed into uniform ridgeless sowing, the sowing quantity is increased, the spike number per acreage is improved, the wheat growth space is fully utilized, the former intensive growth is changed into dispersed growth, the grain number per spike and grain weight are increased and the yield per unit area is improved. The corn is planted by using the optimal sowing method in international and domestic regions, where the row distance is expanded, the plant distance is reduced, the density is increased and the natural resources of light, gas and heat are fully utilized to improve the yield.

The invention relates to the technical field of hybrid breeding, in particular to a wheat hybridization method for increasing the setting rate. The method comprises the steps that when wheat grows to a flower bud differentiation period, a wheat growth promoter is sprayed to male parents and female parents; after female parent ears are completely headed, flag leaves are stripped off, one third of each spikelet is cut off, stamens are removed, a pistil growth promoter is sprayed, glassine bags are taken, the female parent ears are covered with the glassine bags, test tubes containing water are fixed in the glassine bags, male parent ears are cut out to be placed in the test tubes which are fixed in the glassine bags and contain water when the selected male parents hybridized with the female parents grow to a flowering period, the glassine bags are shaken in a hybridizing pollination period to complete natural pollination between the male parents and the female parents, and after pollination is completed, the glassine bags and the test tubes are taken down; when the pollinated female parents grow to a filling period, a filling period regulator is sprayed. According to the method, the pollination method is combined with nutrient supply of wheat in different periods, false hybridization is avoided, the hybrid breeding efficiency is improved, and the setting rate and the yield are increased.

The invention discloses a rice grain length and grain weight related protein as well as a coding gene and application thereof. According to the invention, an OsMOB1A gene is introduced into wild typerice by using a recombinant vector to obtain transgenic rice. Compared with the wild type rice, for the transgenic rice, the OsMOB1A gene is overexpressed, the grain length of the rice is obviously increased, and the grain weight is obviously increased. Therefore, the OsMOB1A gene is related to the grain shape, and a foundation is laid for improving the cultivation of transgenic plants with changed grain shapes. The invention has important theoretical significance and practical significance for further clarification of a molecular mechanism of plant grain development and cultivation of high-quality and high-yield new crop varieties through genetic engineering means.

The invention discloses a dry land wheat region fallow period water storage and soil moisture preservation cultivation method. According to the method, after a former stubble of wheat is harvested, fertilizers are applied during the rain in early and middle July, then, deep soil turning is carried out so that ground surface fertilizers and straws are totally returned to the land, the concave-convex uneven state of the ground is maintained, the harrowing soil moisture preserving is carried out in early and middle August, and meanwhile, once chemical weeding is carried out. Compared with the prior art, the technology provided by the invention has the advantages that 0 to 300cm of soil moisture preserving quantity can be increased before the winter wheat seeding, and the soil organic matter fertilizer power can be enhanced. The technology provided by the invention has the advantages that the operation is simple, the practicability is high, the water preserving effect is obvious, the cultivation, the fertilization and the straw field returning are integrated, the organic combination of the agricultural machinery and the agricultural technology is realized, the coordinated cooperation of the cultivation moisture preservation and the fertilization water storage is realized, and the goals of wheat fallow period summer rain deep storage and season crossing utilization are reached. The method provided by the invention is widely applied to loess plateau dry land wheat regions. Compared with the traditional cultivation technology, the method has the advantage that under the average year production conditions, the wheat yield can be improved by more than 20 percent.

The invention discloses a wine brewing sorghum planting method. The method includes preparation before planting, sowing, seedling period management, seedling formation period management and harvesting. The planted sorghum is high in yield and has little pesticide residues.

The invention discloses a protein capable of controlling weight of crop seeds and application thereof, and belongs to the field of foliage genetic breeding. The protein is qHKW1-9 protein in corn, andthe amino acid sequence is shown as SEQ ID NO.1, or the amino acid sequence contains protein with at least 81%, at least 82%, at least 83%, at least 85%, at least 89% or at least 92% of sequence similarity relative to the sequence in SEQ ID NO.1. The invention further discloses nucleic acid for encoding the abovementioned protein, an expression cassette, an expression carrier and a host cell containing the nucleic acid, and application thereof in increasing of the weight of the crop seeds.

The invention discloses a compound growth regulator and a preparation method and application thereof. The compound growth regulator is prepared from the following components in parts by weight: 5-80 parts of trinexapac-ethyl, 4-60 parts of acetylthioproline and 0.001-1 part of brassinolide. According to the compound growth regulator, the coordinated improvement of pod number, grain number and grain weight can be promoted, and numbers of shrunken pods and shrunken grains are significantly reduced; the lodging rate of soybeans is reduced, the yield of the soybeans is increased, and the cost is lowered; the comprehensive quality of soybean seeds and straws is improved, and the content of protein, amino acids (especially methionine, lysine and other essential amino acids) is improved; the drugdamage effect on the soybeans does not exist, and good safety is brought; and the content of pesticide residues in soil can be reduced, and the compound growth regulator is safe to environments.

The invention discloses a maize DWF4 gene and an expression vector, application and a plant thereof. In a method for breeding a high-yield plant provided by the invention, DWF4 genes are introduced into a receptor plant for over-expression to obtain a transgenic crop with superior agronomic characters. Measurement of various indexes of the transgenic plant discovers that the transgenic plant grows vigorously, is obviously heightened and has enhanced photosynthesis, delayed aging of blades and increased grain weight compared with a non-transgenic plant. The improvement of the agronomic characters can be used for increasing yield and quality of the crop and has important economical value and social benefit.

The invention discloses an organic fertilizer comprising the following components in parts by weight: 55-62 parts of amino acid organic fertilizer, 15-20 parts of fulvic acid organic fertilizer, 1-3 parts of monoammonium phosphate, 20-22 parts of calcium magnesium phosphate fertilizer and 2-3 parts of bentonite. The preparation method of the organic fertilizer comprises the following steps of: mixing all components at ratio, carrying out steam granulation or disk granulation, drying, screening, metering and split charging. The organic fertilizer combines the advantages of the amino acid organic fertilizer, the fulvic acid organic fertilizer and the calcium magnesium phosphate fertilizer, has more scientific weight ratio and is convenient to use. When being used, the organic fertilizer is cooperated with potash fertilizers according to leaf vegetables and fruiting plants, use amount is adjusted, and therefore the purposes of improving yield and improving quality can be realized.

The invention discloses a long-chain non-coding RNA (Ribonucleic Acid) gene for increasing the yield of rice and application of the long-chain non-coding RNA gene. The rice long-chain non-coding RNA (lncRNA) gene is named as XLOC050158, is highly expressed 5 days after primary caryopses bloom, is highly expressed 12 days after secondary caryopses bloom, and belongs to typical rice caryopses medium-development delayed expression lncRNA. Through construction of XLOC050158 overexpression rice and phenotype observation, it is found that the grain weight of secondary caryopses of the overexpression rice is increased and is close to the grain weight of primary caryopses, and the plant height, the spike length, the total spikelet number of a single spike, the primary spikelet number and the secondary spikelet number of the overexpression rice do not change obviously. The invention provides important scientific basis and technical support for obtaining high-yield rice.

The invention belongs to the field of agricultural planting, and particularly relates to a planting method of selenium-rich black soybean. The method comprises the following steps: A, seed treatment: drying full seeds for 2 to 3 days, dissolving every kilogram of seeds into 30 milliliters of water with 0.8 to 1.2 gram of sodium borate, stirring the seeds after dissolution, and drying the seeds in shade, so as to be convenient for seeding; B, soil preparation and fertilization: selecting sandy soil, applying 1000 to 2000 kilograms of organic fertilizer for each mu, and then performing rotary tillage with the rotary tillage depth being 20 to 23cm; C, hole opening and seeding: ensuring that the seeding depth is 3 to 4cm, the row spacing is 10 to 15cm, the plant spacing is 45 to 60cm, 1 to 2 seeds are sown for each hole, and 10000 to 12000 plants are sown for each mu; D, field management: spraying sodium selenite solution with the mass concentration being 0.5% once to leaf surfaces during the early blooming period and the seed filling period of black soybean. The selenium content of the produced black soybean is stabilized at 520 to 610 micrograms/100 grams, and the health care effect of the black soybean is greatly improved.

The invention discloses a scientific cultivation method of Taoyou Xiangzhan (indica-variety three-line hybrid medium late rice), and belongs to the field of rice cultivation. The scientific cultivation method of the Taoyou Xiangzhan comprises the following steps: S1, processing a rice seedling bed, namely selecting a rice seedling bed, and carrying out processing so as to achieve a regular bottomwidth of 2 m, a groove width of 0.5 m and a groove depth of 0.2 m; S2, carrying out sowing in good time, namely sparsely sowing raised seedlings, scattered-planting on June 17th to June 20th, transplanting with soil-removed big seedlings on June 21th to June 23th and machine transplanting on June 23th to June 25th; S3, processing a rice field, namely planting 10 kg of Chinese milk vetch in a ricefield in May, allowing the Chinese milk vetch to grow and mature in one month, carrying out mechanical plowing so as to have the mature Chinese milk vetch buried, and synchronously applying an organicfertilizer at a dosage of 170-210 kg/mu; S4, carrying out transplanting in good time, namely carrying out rational close planting, scattered-planting with long-age seedlings and transplanting with soil-removed big seedlings controlled within 25 days and machine transplanting controlled within 20 days; S5, carrying out scientific fertilization, namely applying sufficient base fertilizer in line with the rule of heavy application of base fertilizer, early application of top dressing and late application of ear fertilizer as appropriate; S6, carrying out scientific water management, namely sunning the rice field in good time, and managing water in line with the rule of shallow planting in thin water, living stump in deep water and tillering in shallow water; and S7, preventing and treating diseases, insects and pests. The scientific cultivation method of the Taoyou Xiangzhan is capable of ensuring relatively low morbidity, high cultivation efficiency and vigorous growth.