427results about How to "Improve drought tolerance" patented technology

The invention relates to plant transcription factor polypeptides, polynucleotides that encode them, homologs from a variety of plant species, and methods of using the polynucleotides and polypeptides to produce transgenic plants having improved tolerance to drought, shade, and low nitrogen conditions, as compared to wild-type or reference plants.

The present invention is directed to plants that display a drought tolerance phenotype due to altered expression of a DR03 nucleic acid. The invention is further directed to methods of generating plants with a drought tolerance phenotype.

The invention relates to the technical field of polyvinyl chloride composite materials, in particular to a high-abrasion-resistant and environment-friendly polyvinyl chloride (PVC) modified materials and a preparation method of the high-abrasion-resistant and environment-friendly PVC modified materials. The modified materials comprise following raw materials, by weight, 80-120 parts of PVC resin, 5-15 parts of stuffing bulking agents, 31-70 parts of plasticizer, 1-10 parts of abrasion resistant modifying agents, 1-10 parts of fire retardant, 1-10 parts of stabilizer, 10-20 parts of impact modifier and 0.2-2 parts of lubricating agents. The raw materials are weighed according to the weight and are blended, after the raw materials are stirred, the stirred raw materials are extruded to be granulated into particles through a double-screw extruder to produce the modified materials. The prepared modified materials are good in abrasion resistant property, environment-friendly, high in strength, good in flame retardant efficiency, strong in compression property and toughness, good in processing property, and good in comprehensive property. The preparation method of the high-abrasion-resistant and environment-friendly PVC modified materials is simple in craft, convenient to operate and control, stable in quality and high in production efficiency and can be produced in a large scale industrialization mode.

The invention provides a composite amino acid ecological nutritious agent, which comprises sea weed fermentation liquor, fermentation liquor of animal leftover bits and pieces, trace elements, and biological bacterium. The functions of the agent include stimulating growth, suppressing pathogenic agent and reinforcing immunization.

Isolated polynucleotides and polypeptides encoded thereby are described, together with the use of those products for making transgenic plants with increased tolerance to abiotic stress (e.g., high or low temperature, drought, flood).

The invention relates to the technical field of PVC materials, in particular to a PVC (polyvinyl chloride) foam material for a sole and a preparation method of the PVC foam material. The PVC foam material for the sole comprises raw materials in parts by weight as follows: 80-120 parts of PVC resin, 40-60 parts of a plasticizer, 20-30 parts of a filling agent, 6-10 parts of a wear-resistant modifier, 4-8 parts of a thermal stabilizer, 2-4 parts of a foaming agent, 0.8-1.2 parts of a lubricant and 1-2 parts of a processing aid. The raw materials are adopted for preparation of the PVC foam material for the sole, the weight proportion of the raw materials is controlled strictly, the performance of the prepared PVC foam material for the sole exceeds the national standards, and the PVC foam material is environment-friendly and has good temperature resistance and weather resistance, high strength, excellent anti-impact performance, good flame-retardant effect, good processing performance and excellent comprehensive performance.

The invention relates to a method for producing protective vegetable fungus root sprout, comprising the following steps: 1) planting susceptive crop after inoculating the bush AMF for sterilized organic soil or soil, taking the strand roots of plant or fungus root spore as inoculating bacteria; 2) sterilizing seedling soil or medium; 3) loading the sterilized soil into dish, spraying the inoculating bacteria onto soil, 4) sowing on the dish, then covering with sterilized soil for seedling in greenhouse. The invention is characterized by the low cost, good popularity and simple operation. The bacteria can on one side increase the usage of nutrient and water and fertilizer under organic cultivating condition, which results in productivity and quality improvement of vegetable; on the other side can strengthen the disease and drought resistance, reduce disease spread through soil and improve vegetable root condition.

Methods for producing greater biomass in a plant, increasing the drought tolerance of a plant, producing a decreased lignin concentration in a plant, producing a greater iron concentration in a plant, or inhibiting fungal infection in a plant comprise administering Bacillus subtilis FB17 to the plant, the seed of the plant, or soil surrounding the plant or the seed in an amount effective to produce greater biomass, increase the drought tolerance, produce a decreased lignin concentration, produce a greater iron concentration, or inhibit fungal infection in the plant compared to an untreated plant, respectively. Agricultural carriers and seed coatings comprising Bacillus subtilis FB17 are provided. The biomass of a plant which has been administered Bacillus subtilis FB17 can be converted to a biofuel or can be used as a food crop or in other uses.

Disclosed is a method for extracting dihydro quercetin from larch. The invention is an improved production method. Due to different production materials and extraction processes, the dihydro quercetin products in U.S. and European markets are very expensive, at a price of 200-1000 euros per gram. Such a high market price economically limits the wide range of practicability of dihydro quercetin products. During the pretreatment of raw materials, 50 kilograms of larch wood chips and 500-800 liters of 50% ethanol solution are added into a reactor to get fully stirred and mixed; then the mixture is extracted and filtered for the second extraction; the filtrates are combined and adsorbed; the organic solvents are collected and dried by a vacuum evaporator through organic phase vacuum distillation; according to a weight proportion of 10:1, the residues are dissolved with hot water, decolorized with activated carbon and then crystallized at a temperature of 3-5 DEG C to precipitate the dihydro quercetin product which is then crushed after vacuum drying to finished product. The invention is used to extract dihydro quercetin from larch.

The invention discloses a high-activity seaweed fertilizer specially used for peanuts and a preparation method thereof and belongs to the technical field of production of crop specially-used fertilizers. The high-activity seaweed fertilizer is prepared from following raw materials comprising: urea, monoammonium phosphate, a calcium magnesium phosphate fertilizer, potassium sulfate, borax, EDTA chelating iron, EDTA chelating manganese, EDTA chelating zinc, ammonium heptamolybdate, a seaweed extraction liquid and seaweed residues. Compared with a fertilizer in the prior art, the high-activity seaweed fertilizer specially used for the peanuts is reasonable in formula, is complete in nutrition, can achieve an effect of increasing yield of the peanuts and improving quality of the peanuts.

The present invention provides a method for deep fertilizer-application of the fruit tree by punching holes. According to the diameter of the crown of the fruit tree, a cavity hole with the diameter of 20 cm and the depth of 40 to 50 cm is punched every one meter on the circumference 20 cm to 30 cm outside the drip line of the crown range of the tree body, and then according to the growth of the fruit tree in different seasons, the fertilizer is put into the hole and then the fruit tree is watered. The fertilizer released by the present invention is the nitrogenous fertilizer, the phosphorus fertilizer, the potash fertilizer and the organic fertilizer; the ratio between the total quality of the nitrogenous fertilizer, the phosphorus fertilizer and the potash fertilizer and the diameter of the tree crown for every fruit tree is 1m/5kg to 1m/6kg; and the ratio of the nitrogenous fertilizer, the phosphorus fertilizer and the potash fertilizer is 3/4/2. The method of the present invention induces the root of the fruit tree to be deepened in the earth to absorb the nutrition and the water, thereby guaranteeing the effective absorption of the fertilizer, increasing the drought-resistant ability of the fruit tree, strengthening the growth and improving the yield.

The invention discloses a usage of an Arabidopsis miR396 small molecular. The invention relates to a feasible and practical application method for improving the anti-arid ability of plants by utilizing Arabidopsis miR396 small molecular. The method comprises the following steps that the precursor of the Arabidopsis miR396 small molecular is prepared; the expressive fusion plasmid of the corresponding plants is constructed, corresponding agricultural bacillus are transformed; the transformation of the precursor of the Arabidopsis miR396 small molecular is mediated by adopting the recombination of the agricultural bacillus, the precursor of the miR396 small molecular cam be inducted into the Arabidopsis and the corresponding transgenic plant is obtained; and then the evaluation of anti-arid ability of the corresponding Arabidopsis transgenic plant is performed. The invention provides a method that the crops, the garden plants and the new pasture variety with anti-arid ability are cultivated by utilizing the Arabidopsis miR396 small molecular.

The invention discloses a plant stress tolerance related protein TaSnRK2.10 as well as a coding gene and an application thereof. According to the invention, the protein is the protein shown by the following (a) or (b): (a) a protein formed by amino acid sequences shown in a sequence 2 in a sequence table; and (b) a protein obtained by substituting and/or deleting and/or adding one or more amino acid residues of the amino acid sequences in the sequence 2 in the sequence table, related to plant stress tolerance and derived from the (a). According to the invention, it is proved by experiments that the plant stress tolerance, like drought tolerance, water conservation, salt resistance or cold resistance, can be improved by introducing the genes into the plant. Therefore, according to the invention, the genes and the application thereof has important realistic meaning to develop new drought tolerant, water saving, salt resistant or cold resistant plant.

The invention provides methods for decreasing lignin content and for increasing the level of fermentable carbohydrates in plants by down-regulation of the NST transcription factor. Nucleic acid constructs for down-regulation of NST are described. Transgenic plants are provided that comprise reduced lignin content. Plants described herein may be used, for example, as improved biofuel feedstock and as highly digestible forage crops. Methods for processing plant tissue and for producing ethanol by utilizing such plants are also provided.

The invention relates to a small molecular compound for enhancing plant stress resistance, and firstly reveals that small molecular compound AM1 has similar physiological activity with ABA, can significantly enhance plant tolerance to abiotic stress (commonly including cold, drought, salinity, osmotic pressure, heat and the like) widely existing in environment, and has higher application value.

The invention discloses a plant growth regulator gamma-aminobutyric acid (GABA) and a using method thereof. The preferred application concentration of the GABA growth regulator is 10-75mmol/L, furthermore, the more preferred application concentration is 25-50mmol/L, and the most preferred concentration is 50mmol/L. The plant growth regulator is dissolved in water before application and is fertilized to the blade surfaces of plants in the morning or at dusk. The GABA growth regulator disclosed by the invention can remarkably reduce plant cell membrane damage caused by an adverse situation, keep the stability of cell structure and obviously enhance the stress resistance of crops, so that the robust growth of the plants is accelerated.

The invention relates to and aims at providing a rice RING finge family E3 ubiquitin ligase OsDHS gene as well as an encoding protein and application thereof. The nucleotide sequence of the OsDHS gene is represented by SEQ ID NO:1 in a sequence table. The amino acid sequence of the encoding protein is represented by SEQ ID NO:2. By carrying out overexpression or knockout on the OsDHS gene in rice, a series of experiments prove that OsDHS gene overexpressed transgenic rice is super-sensitive to drought, and epicuticular wax is seriously lacked; otherwise, a dhs mutant presents that the drought resistance is enhanced. According to the OsDHS gene, by adjusting and controlling the synthesis of the epicuticular wax of the rice, the response of plants to drought stress is adjusted and controlled.

In general, embodiments of the present invention provide seed, soil, and plant treatment compositions, and methods of making and using such products and compositions. The use of these products and compositions can act as a plant protectant and increase the growth, health, and yield of various seeds and plants such as crops and grasses, and further provide similar benefit to soils.

The invention relates to a method for preparing biological organic fertilizer from cow dung. The organic fertilizer is prepared from the following raw materials in parts by weight: 80 to 160 parts ofcow dung, 15 to 40 parts of rice bran, 20 to 30 parts of silkworm excrement, 45 to 65 parts of sludge, 8 to 18 parts of urea, 0.05 to 0.5 part of fungicide and the like. The preparation method comprises the steps: preparing the raw materials, stacking, adding the fungicide, stirring and fermenting and sieving. The biological organic fertilizer prepared by the method disclosed by the invention hasthe characteristics of having a high biological organic matter content, improving soil, preventing soil hardening, effectively inhibiting harmful bacteria in soil, effectively and quickly promoting crop growth and the like.

The invention discloses a complex hormone and a preparation method and application thereof. The complex hormone is formed by melatonin, salicylic acid and abscisic acid in a certain proportion. The preparation method includes steps: A, using an analytical balance to respectively proportionally weighing the melatonin, the salicylic acid and the abscisic acid at the room temperature; B, well mixing the melatonin, the salicylic acid and the abscisic acid to obtain a mixture; D, adding 1L of full-concentration Hoagland's nutrient solution into the mixture, and well mixing to obtain a complex hormone aqueous solution. The complex hormone is reasonable in formulation, convenient to use, effective in improvement of drought stress resistance of rape, safe and free of pollution to rape products and ecological environment; the method is easy to implement and convenient and simple in operation, and by compounding of different hormones, nutritional disorder caused by action of single hormones is avoided, and crop growth can be promoted comprehensively; under drought stress, lateral root growth is promoted, a flowering time is changed, and leaf senescence is decelerated. In addition, excessive active oxygen generated in rape bodies under drought stress can be cleared to reduce cell membrane permeability and improve drought tolerance of rape, and accordingly yield increase is realized.

The present invention relates to the field of transgenic plants with novel phenotypes, especially plants with enhanced drought and pathogen resistance. Provided are transgenic crop plants comprising integrated in their genome a chimeric gene, characterized by said chimeric gene comprising a transcription regulatory sequence active in plant cells operably linked to a nucleic acid sequence encoding a protein having the sequence of SEQ ID NO: 3 or a protein at least 70% identical to SEQ ID NO: 3, or an ortholog protein or a functional fragment thereof. In addition to enhanced drought tolerance the transgenic plants may show enhanced disease resistance and enhanced root structure.

A passive, hydrodynamic technique implemented using a microfluidic device to perform co-encapsulation of samples in droplets and sorting of said droplets is described herein. The hydrodynamic technique utilizes laminar flows and high shear liquid-liquid interfaces at a microfluidic junction to encapsulate samples in the droplets. A sorting mechanism is implemented to separate sample droplets from empty droplets. This technique can achieve a one-one-one encapsulation efficiency of about 80% and can significantly improve the droplet sequencing and related applications in single cell genomics and proteomics.