17results about How to "Dry weight increase" patented technology

The invention discloses application of N-acetyl-L-cysteine in improving drought tolerance of plants, and belongs to the technical field of plant cultivation. The invention provides the application of N-acetyl-L-cysteine (N-acetyl-L-cysteine, NAC) in the improvement of the drought tolerance of the brassica napus for the first time. Experiments prove that compared with a control group, the fresh weight, the dry weight, the root length and the chlorophyll content of rape seedlings subjected to foliage spraying of 150 mu M of N-acetyl-L-cysteine under the drought stress condition are improved, the water loss rate of leaves is reduced, and the drought stress tolerance of the rape is enhanced. Therefore, the drought stress tolerance of the rape treated by the N-acetyl-L-cysteine is obviously improved. Furthermore, an optimal application concentration of 150 mu M is obtained through experimental exploration, so that the N-acetyl-L-cysteine can be optimally utilized in improving the drought stress tolerance of the oilseed rape.

The present invention discloses a new use of ccdC gene, and belongs to the technical field of microbial genetic engineering. The new use of ccdC gene disclosed by the present invention is to improve the motility of strains, reduce the wrinkling of bacterial biofilms, destroy the stability of biofilm structures, promote bacterial dispersion, promote spore formation, inhibit the growth of Nicotiana benthamiana, and inhibit the secretion of indoleacetic acid by strains; the nucleotide sequence of the ccdC gene is shown in SEQ ID NO.1. The present invention also discloses a ccdC gene mutant strain SZZ06. Compared with the wild type FZB42, the ccdC gene mutant strain SZZ06 of the present invention has reduced motility of strains, greater wrinkling of biofilms, more stable structure of biofilms, slower bacterial dispersion, less spore formation, and promotes the secretion of indoleacetic acid by strains and promotes plant growth.

This disclosure relates to a compound composition comprising stearic acid and moclobemide, which can effectively improve the drought resistance of crops and promote crop growth and development under drought stress. This disclosure also provides uses of the composition and methods for improving crop growth and development under drought stress.

The invention discloses application of bentonite-loaded calcium-iron layered double hydroxides in passivating cadmium in tomato plants. The application comprises the following steps: increasing the fresh weight and dry weight of the tomato plants planted in cadmium-polluted soil; the plant height and root length of tomato plants planted in the cadmium-polluted soil are improved; and passivating cadmium in tomato plants planted in the cadmium-polluted soil. The bentonite-loaded calcium-iron layered double hydroxide is prepared by the following method: dissolving bentonite, FeCl3. 6H2O and CaCl2 in deionized water, adding Na2CO3 and NaOH solutions while stirring, adjusting the pH to 11-13 to obtain a solid-liquid mixture, filtering after reaction to obtain a precipitate, washing with deionized water to be neutral, drying and grinding to obtain the bentonite-loaded calcium-iron layered double hydroxide. The research aims at repairing Cd-polluted soil, bentonite and layered double hydroxides widely existing in the nature are used as raw materials, CaFe-LDH (at) BT is prepared by using a coprecipitation method, and the content of available Cd in the soil can be effectively reduced by applying 0.4% of CaFe-LDH (at) BT; the dry weight and fresh weight of tomato plants are improved, the content of Cd in roots, stems, leaves and fruits of the tomato plants is effectively reduced, and the transfer coefficient of Cd in the tomato plants and the enrichment coefficient of overground parts are also reduced.

The invention provides bacillus stutzeri HMB39561 and application thereof, and belongs to the technical field of agricultural microorganisms. The bacillus stutzeri HMB39561 disclosed by the invention is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number of the bacillus stutzeri HMB39561 is CGMCC No.37015. The strain not only has a good prevention and treatment effect on cotton damping-off and verticillium wilt, but also can increase the cotton yield and improve the cotton quality. The bacillus stutzeri HMB39561 disclosed by the invention can be used for green prevention and control of cotton damping-off and verticillium wilt, and has a relatively good application prospect in the field of cotton planting.

The application provides a strain of protozoan nephrospora NJAU-HN1 and an application thereof, and belongs to the technical field of agricultural microorganisms. The nephrospora NJAU-HN1 has a preservation number of CCTCC NO: C2025172. The nephrospora NJAU-HN1 can directly and effectively inhibit the survival of root-knot nematodes. Application of the nephrospora NJAU-HN1 or a culture thereof can significantly promote the growth of melon plants, increase the fresh weight, dry weight and root length of the plants. The nephrospora NJAU-HN1 provided by the application provides valuable microbial resources for the development of a new microbial preparation for green prevention and control of melon root-knot nematode disease and crop health promotion, and has a good application prospect.

The invention discloses a strain of Priesteria gigantea with carbon fixation function, a fermentation liquid and an application thereof, and belongs to the technical field of microbial application. The invention screens out a strain of Priesteria gigantea ( Priestia megaterium )C17, its biological preservation number is CCTCC NO: M 20241724; strain C17 has the carbon fixation gene cbbL gene, can produce carbon fixation enzymes, has good carbon fixation ability, can be used in the field of microbial carbon fixation, promote the conversion of inorganic carbon in the soil into organic carbon, and at the same time can improve the soil and increase the number of carbon fixation bacteria in the soil.

The invention relates to a halophilous iris IhCHS1 gene for improving salt tolerance and jasmonate accumulation capability of a plant and application. The salt-loving iris IhCHS1 gene belongs to a plant chalcone synthase (CHS) family, an overexpression vector of the IhCHS1 gene is constructed and transferred into a salt-sensitive plant, and through growth phenotype, physiological analysis and metabolite analysis, it is found that under salt stress, compared with a wild type, the plant with the overexpressed IhCHS1 gene is remarkably increased in seedling root length, mature-period biomass and pedicel height, and the plant with the overexpressed IhCHS1 gene is remarkably increased in mature-period biomass and pedicel height. The content of jasmonic acid compounds is remarkably increased, so that overexpression of the IhCHS1 gene can remarkably enhance the salt tolerance of the plant and the accumulation amount of jasmonic acid substances, and the IhCHS1 gene can be used for improving the growth ability of the plant under salt stress and the synthesis ability of the jasmonic acid compounds. The halophilous iris IhCHS1 gene and the overexpression vector thereof have important application value in the field of plant salt stress resistance and plant secondary metabolism genetic engineering, and can be directly applied to creation of salt-tolerant new germplasm of iris and even other plants.

The present application relates to the field of agricultural technology, and discloses a kind of plug seedling substrate and its preparation method and application.The plug seedling substrate includes the following components: tea dregs, coconut bran, inorganic porous material and functional liquid;Wherein, the functional liquid includes the following components: ikdoine, natamycin and polyglutamic acid.The plug seedling substrate provided by the present application provides air permeability with tea dregs, provides water retention with coconut bran, and uses inorganic porous material as the substrate framework, meeting the requirements of seedlings for substrate water retention, air permeability and root growth space, by adding functional liquid containing active ingredients ikdoine, natamycin and polyglutamic acid, while solving the three major problems of water management, disease control and root development.Plug seedling.The tea dregs after extracting tea polyphenols and coconut bran replace non-renewable peat, realizing high-value utilization of agricultural waste, and compared with non-renewable peat, the raw material cost is low and more environmentally friendly.

The invention provides Pseudomonas kirscheri WF3, a microbial fertilizer for saline-alkali soil and a preparation method and application of the microbial fertilizer, and belongs to the technical field of biological composting. The invention provides a preparation method of a microbial fertilizer for saline-alkali soil. The preparation method comprises the following steps: (1) preparing a fertilizer carrier comprising a decomposed organic fertilizer, humic acid, attapulgite powder and polyglutamic acid; and (2) inoculating pseudomonas kirschner WF3 into the fertilizer carrier, and carrying out sealed fermentation to obtain the microbial fertilizer for saline-alkali soil. Pseudomonas kirschner WF3 which has exopolysaccharide and organic acid production capacity and can survive in a strong saline-alkaline environment is adopted for fermentation of a fertilizer carrier, the prepared microbial organic fertilizer can effectively improve the content of organic carbon, total nitrogen and water-stable large aggregates (larger than 2.5 mm) in soil, increase the yield of corn, reduce the pH and total salt content of the soil, and improve the yield of corn. The improvement effect on the saline-alkali soil is obvious.

The invention relates to the technical field of low-grade phosphorite treatment, in particular to a medium-low-grade phosphorite acidolysis product as well as a preparation method and application thereof. According to the method, the raffinate acid is introduced to prepare the low-quality phosphate-based sulfur-phosphorus mixed acid urea to decompose the medium-low-grade phosphorite, so that the incremental utilization of the raffinate acid and the full-amount utilization of phosphorite resources are realized; the introduction of the raffinate acid creates good reaction conditions for the acidolysis process, is beneficial to relieving the generation of bubbles in the reaction process, reduces the foaming rate, and improves the conversion rate of elements in the medium-low grade phosphorite, and the highest conversion rate can reach 97.5% or above; and the fluidity of the acidolysis slurry is effectively improved by the raffinate acid, so that convenient conditions are provided for preparation of middle-low-grade phosphate ore acidolysis products.

The invention relates to the technical field of wheat stain resistance. The invention provides a composition for resisting waterlogging, strengthening seedlings and stabilizing yield of wheat as well as application and a use method of the composition. The composition comprises the following components: S-abscisic acid, paclobutrazol-mepiquat chloride and a humic acid-containing micro-element fertilizer. The combined pesticide provided by the invention can improve the root volume, surface area and dry weight, effectively relieve the influence of waterlogging on root growth, promote the occurrence rate of first tillering of wheat, promote the growth of leaves and tillering and improve the tillering quality. The photosynthetic ability, chlorophyll fluorescence ability, oxidation metabolism resistance and carbon and nitrogen metabolism of the main stem and the first tiller are enhanced. And finally, the improvement of the quality of early-stage stem tiller groups can be promoted, tillering and ear formation are promoted, and the yield is increased.

The application of ferulic acid in promoting the growth of rice seedlings and increasing the yield of rice in saline-alkali land, the application of ferulic acid in rice is disclosed.The application provides a new application method of ferulic acid, i.e.the application of 5-20 micromole / L ferulic acid in promoting the growth of rice seedlings and increasing the yield of rice in saline-alkali land.The application of ferulic acid in promoting the growth of rice roots, the development of rice seedlings and increasing the salt tolerance of rice in fields, and the positive effect of ferulic acid on the growth and development of rice through the application of low-concentration ferulic acid are illustrated, which breaks the cognition of most people that ferulic acid inhibits the growth and development of plants to a certain extent.Especially, the application of ferulic acid in increasing the alkali tolerance of rice, and the application of low-concentration (5-20 micromole / L) ferulic acid enhances the alkali tolerance of rice and increases the yield of rice.

The invention belongs to the technical field of microorganisms, and in particular relates to a Marsinia sp. Strain for promoting the growth of Aucaria kanjinensis and application thereof. The strain is named as MASSIA sp. E1-2 h, has been preserved in China General Microbiological Culture Collection Center on September 18, 2024, the preservation number is CGMCC No.31989, and the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing. The test result shows that the MASI sp. E1-2h is prepared into a bacterial solution, and the bacterial solution is injected into soil around the root system of the Aucaria kjelliana, so that the growth of the Aucaria kjelliana can be promoted, and the yield of the Aucaria kjelliana can be increased. The method is specifically expressed in promoting the formation of the mycorrhiza of the Aucaria kjelenkinensis, improving the dry weight of the underground part of the Aucaria kjelenkinensis, increasing the surface area of the root system of the Aucaria kjelenkinensis and increasing the number of root nodules under the surface area of the unit root system of the Aucaria kjelenkinensis According to the method, a culture resource library of the growth-promoting bacteria of the Aucaria kjelliana is enriched, and a high-quality bacterial fertilizer germplasm resource is provided for afforestation practice of the Aucaria kjelliana.

The invention belongs to the field of gene engineering, and discloses application of a BnaVTC2 gene in controlling the vitamin C content and stress resistance of brassica napus. The applicant respectively designs two targets of sgRNA1 and sgRNA2 aiming at the uORF sequence of the brassica napus BnaVTC2 gene, and constructs an editing vector for knocking out the uORF of the BnaVTC2 gene by utilizing the targets; the editing vector is introduced into a hypocotyl of brassica napus through an agrobacterium-mediated transformation method, callus is induced, and seedlings are regenerated. The uORF of the rape BnaVTC2 gene is subjected to fixed-point editing through a CRISPR / Cas9 gene editing technology, and the phenotype identification of the edited plant finds that the vitamin C content of the rape plant and the resistance of the rape to low temperature and salt stress can be improved, so that a gene resource and a technical thought are provided for improving the quality and stress resistance of the rape.

The application belongs to the field of agricultural biotechnology, and more particularly relates to application of a TasA protein in improving stress resistance of rice. The amino acid sequence of the TasA protein is shown as SEQ ID NO. 1, and the rice tolerance to high temperature and drought stress can be significantly improved. Experiments show that the use of a rice stress resistance regulator containing the TasA protein can effectively alleviate the inhibition of stress on plant growth. Compared with the untreated group, the rice seedlings to which the rice stress resistance regulator containing the TasA protein is applied have a significantly increased plant height, fresh weight and dry weight under high temperature stress, and also show a better growth state under drought stress. The rice stress resistance regulator provided by the application has a simple use method and low cost. The application provides a new technical path for improving crop stress resistance by using an exogenous TasA protein, and is suitable for stress resistance improvement of rice and other crops.

This invention provides a soil conditioner, its preparation method, and its application, belonging to the field of soil remediation technology. The soil conditioner, by mass percentage, comprises the following components: 95%–97% tobacco straw, 0.5%–2% *Ulva prolifera* polysaccharide, 0.1%–0.5% fucoidan oligosaccharide, and 1%–2.5% *Bacillus* powder. Through the synergistic effect of its components, the soil conditioner provided by this invention can effectively improve soil compaction in coastal saline soils, enrich soil microbial biodiversity, and simultaneously enhance the salt and drought resistance of plants growing in coastal saline soils, thereby promoting plant growth and development. Example results show that the soil conditioner provided by this invention can significantly increase the stem height and dry weight of plants in coastal saline soils, increase the number of lateral branches, and promote root elongation; simultaneously, the soil conditioner can effectively improve the microbial diversity in coastal saline soils.