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147 results about "Rice root" patented technology

Biochar-based slow-release oxygen material for gleying soil improvement as well as preparation method and application of biochar-based slow-release oxygen material

The invention belongs to the technical field of biochar oxygen-releasing materials, and particularly relates to a biochar-based oxygen-releasing material for gleying soil improvement as well as a preparation method and application of the biochar-based oxygen-releasing material. The biochar-based oxygen release material is a CaO2 at phosphorus-rich biochar material obtained by taking modified phosphorus-rich biochar as a carrier and combining with calcium peroxide, and has remarkable beneficial effects in the field of gleying rice field improvement. According to the biochar-based oxygen release material, the mass fraction of calcium peroxide is remarkably increased, so that the oxygen release function of the material is enhanced, and the biochar-based oxygen release material has important significance for improving the ventilation condition of a rice field and promoting the growth of a rice root system. In the preparation process, raw materials such as dimethylbenzene and polyethylene which may cause soil pollution and ecological problems are avoided, and the environment-friendly concept is embodied. Meanwhile, the modified biochar not only serves as a carrier to improve the loading capacity of calcium peroxide, but also has the function of releasing a phosphate fertilizer, and is beneficial to improvement of the soil fertility of the rice field and increase of the rice yield.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI

Rice root bud tracking method and system based on two-stage segmentation and topological feature fusion

The invention discloses a rice root bud tracking method and system based on two-stage segmentation and topological feature fusion, and the method comprises the steps: firstly collecting a plurality of frames of seed images, then obtaining a seed individual through instance segmentation, obtaining a root, a bud and a main body of the seed individual through semantic segmentation, and then achieving the tracking of the seed main body through topological graph matching. The radical bud and the main body belong to the same individual in the image, so that the radical bud tracking is synchronously realized. According to the invention, automatic and accurate monitoring of the growth dynamic state of the root bud of the single seed in a dense scene is realized, and reliable technical support is provided for dynamic monitoring of the rice germination form.
Owner:NANJING AGRICULTURAL UNIVERSITY

Rice heavy metal adsorption and isolation method based on iron agent regulation and control

The invention belongs to the technical field of crop pollution prevention, and particularly relates to a rice heavy metal adsorption and isolation method based on iron agent regulation and control. According to the method, the iron agent is applied to the polluted rice field soil to induce the soil-rhizosphere interface to form an iron film, heavy metals (such as As, Cu, Pb and Cd) are fixed by virtue of adsorption and complexing effects of the iron agent, and migration of the heavy metals to rice roots is reduced, so that accumulation of the heavy metals at edible parts (leaves and ears) of the rice is reduced; the tolerance of the rice in a polluted environment is enhanced; and the risk of heavy metals in a food chain is reduced. Experiments show; through treatment of an iron film formed by a certain iron-based concentration, accumulation of the heavy metals in the rice leaves can be remarkably reduced, and the accumulation amount of the heavy metals in the rice leaves is far lower than the accumulation amount (1 / 40-1 / 120) of the heavy metals in rice roots. The invention provides an effective solution for farmland soil remediation and crop safety production.
Owner:FUDAN UNIVERSITY

Multi-source sensing fusion-based growth dynamic monitoring system for whole growth period of rice

The invention discloses a rice whole growth period growth dynamic monitoring system based on multi-source sensing fusion, and relates to the field of agricultural intellectualization, and the system comprises an acquisition module which is used for taking a rice root development core area as a target, adaptively arranging a multi-dimensional sensing array and dynamically adjusting the operation frequency of the array, continuously collecting root system microenvironment and morphological characteristic original data; the preprocessing module is used for receiving the original data acquired by the acquisition module, performing space-time alignment and noise filtering on the root system microenvironment and morphological feature sensing data, and synchronously extracting core data dimensions for driving development analysis through a feature enhancement algorithm; by comprehensively evaluating the generated growth potential and yield potential report, the rice growth state is comprehensively reflected, a planter is assisted to intervene abnormal conditions in advance, the growth stress loss is reduced, and a scientific basis is provided for accurate regulation and control, so that the fine management level and yield potential of rice planting are improved.
Owner:YIXING ZHONGGU CEREALS & OILS CO LTD

OsSPL14 gene and application of protein coded by OsSPL14 gene in regulation and control of diameter of plant root system

The invention discloses an application of an OsSPL14 gene and a protein coded by the OsSPL14 gene in regulating and controlling the diameter of a plant root system, and belongs to the technical field of gene engineering. The technical problem to be solved by the invention is how to regulate and control the root diameter of a plant. In order to solve the technical problem, the invention provides application of the protein or a substance for regulating and controlling the expression of a protein coding gene or a substance for regulating and controlling the activity or content of the protein in regulating and controlling the diameter of a plant root system. The protein has an amino acid sequence of sequence 2. The invention discloses that OsSPL14 is an important gene for regulating and controlling the diameter of the rice root for the first time. The expression of the OsSPL14 is driven by using a specific promoter, so that the regulation effect of the OsSPL14 in a rice root system can be specifically exerted, and the diameter of the adventitious root of the rice is increased. The OsSPL14 provided by the invention has important significance in cultivating a new rice variety with high and stable yield, high quality and good stress resistance.
Owner:INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI

Soil-plant carbon element tracking method and system based on isotope labeling

The invention discloses a soil-plant carbon element tracking method and system based on isotope labeling, particularly relates to the technical field of soil carbon cycle in-situ detection, and is used for solving the technical problem that a carbon migration path in a rice rhizosphere heterogeneous micro region cannot be distinguished in the prior art. The method comprises the following steps: arranging a spatial coding microprobe array on a rice root system and a soil interface of a rice field, synchronously applying a C13 labeled compound, and continuously obtaining a grid node oxidation-reduction potential and a carbon isotope abundance value; dividing the boundary of a root surface oxidation layer and an anaerobic layer based on day and night oscillation phase difference mutation; detecting peak displacement migration from carbonyl bonds to carbon-carbon bonds in a boundary transition region by adopting an in-situ Raman spectrum, and correcting a space boundary; partitioning and clustering carbon isotope abundance values according to the corrected boundary, and identifying hot spot boundaries of a root tip secretion active region, a microorganism enrichment region and a mineral binding region; calculating the carbon isotope flux gradient in each region and generating a spatial distribution map; in-situ analysis of a rhizosphere carbon migration path is realized, and rice field carbon cycle research precision is improved.
Owner:INST OF SOIL SCI CHINESE ACAD OF SCI +1

Rice water culture device

The utility model discloses a rice hydroponic device which comprises a hydroponic box, a fixing frame is arranged in the hydroponic box, a plurality of fixing rings are evenly arranged on the fixing frame, hydroponic barrels are connected in the fixing rings in an embedded mode, a fixing pipe is installed in the middle of the fixing frame, and a screw hole is formed in the middle of the surface of the fixing pipe. The surface of the fixing plate is provided with four limiting holes which are annularly distributed by taking a screw hole as the center, and a screw rod and a limiting column are vertically arranged at the inner bottom of the hydroponic box. The motor is started to drive the screw rod to rotate, and after the screw rod rotates, the fixing pipe moves vertically under the limiting influence of a rotating thread and the limiting column; after the fixed frame is driven to move upwards, the rice root system in the hydroponic cylinder or extending to the lower end of the hydroponic cylinder can be exposed, so that the growth condition of the rice can be conveniently observed; the filter box is arranged outside the water culture box, liquid in the water culture box can be pumped out and filtered through the filter box, the filtered liquid is conveyed into the water culture box, culture liquid can flow, and the problems of precipitation and the like are avoided.
Owner:WUHU LINGHUA ECOLOGICAL AGRICULTURE CO LTD

Bacillus mycoides Y2 with functions of reducing cadmium content of crops and promoting growth and application of bacillus mycoides Y2

The invention provides bacillus mycoides Y2 with functions of reducing cadmium content of crops and promoting growth and application of the bacillus mycoides Y2, and relates to the technical field of soil heavy metal pollution bioremediation and agricultural microorganism application. The bacillus mycoides Y2 is preserved in the China General Microbiological Culture Collection Center (CGMCC) on July 14, 2025, and the preservation number is CGMCC 35231. The strain can be applied to cadmium-polluted soil through root application, can reduce the cadmium content of edible parts of crops such as rice, oilseed rape and fast vegetables, and promotes crop growth and rice root surface iron plaque formation. The contaminated soil in Hunan, Henan and Tianjin is verified to be capable of stably colonizing and adapting to different soils and crops. The strain and the matched preparation are green, efficient, high in stability and wide in universality, and provide key technical support for safe utilization of cadmium-polluted cultivated land.
Owner:AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI

Preparation method and application of insect-resistant orderly-released rice seedling raising substrate

The invention relates to the field of rice seedling raising cultivation, and discloses a preparation method of a pest-resistant orderly-released rice seedling raising substrate, which comprises the following steps: (a) preparing a composite microcapsule which comprises a functional microorganism core and an intelligent response type shell coating the functional microorganism core; wherein a compound microbial flora and a quorum sensing signal precursor are loaded in the functionalized microbial core; the intelligent response type shell contains a plant immunity inducer, and the material of the shell is set to be degraded under the action of rice root exudates. By designing a composite microcapsule structure, programmed and targeted release of active substances is realized, so that a plant immunity inducer acts in advance in the early stage of seedling raising, and a composite microbial flora is accurately released to a rhizosphere area only when a rice root system is in contact with the microcapsule, so that the effect of raising seedlings is achieved. And the utilization efficiency and the action accuracy of each functional component are obviously improved.
Owner:JIANGSU LUSHENGFUJIAN AGRICULTURAL TECHNOLOGY CO LTD

Nitrogen fertilizer application method for reducing nitrogen deficiency of double cropping rice under full straw returning

The invention provides a nitrogen fertilizer application method for reducing nitrogen deficiency of double cropping rice under full straw returning, and belongs to the technical field of biological agriculture. According to the method, the application proportion of the tillering fertilizer is increased under the straw returning condition, the optimal application scheme is obtained, the content of ammoniacal nitrogen and nitrate nitrogen in soil is remarkably increased, the nitrogen contending benefit of soil microorganisms and crops is effectively relieved, and effective tillering formation is promoted. The technical scheme provided by the invention is beneficial to establishment of a rice root system, remarkably promotes absorption and transfer of nitrogen in plants, and improves the number of effective ears of rice, thereby remarkably improving the rice yield.
Owner:INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI

Application of rice OsGH17 gene in regulation and control of rice root system

The invention relates to the technical field of biology, in particular to application of a rice OsGH17 gene in regulation and control of a rice root system. The regulation of the rice root system is to promote the development of the rice root system or inhibit the development of the rice root system. At present, no literature report about application of the rice OsGH17 gene to regulation and control of rice root systems is found. The invention shows that the OsGH17 gene deletion can promote the development of the rice root system, and the OsGH17 gene overexpression can inhibit the development of the rice root system. The regulation characteristic of the OsGH17 gene on the influence of the rice root system is defined, and an important reference is provided for deeply researching the function and action mechanism of the glucoside hydrolase in the plant in the rice.
Owner:ZHEJIANG UNIV OF SCI & TECH +1

Organic compound fertilizer for promoting rice growth and application thereof

The invention discloses an organic compound fertilizer for promoting rice growth and application thereof, and belongs to the technical field of compound fertilizers. The organic compound fertilizer for promoting rice growth, provided by the invention, not only contains organic matters, but also contains inorganic nutrients and functional microorganisms, is rich in organic matters and various inorganic nutrients, can provide comprehensive nutrients for rice growth, and promotes healthy growth of rice. Urea, diammonium phosphate, potassium sulfate, calcium superphosphate and other inorganic fertilizers can provide nitrogen, phosphorus and potassium elements needed by rice growth and can be rapidly absorbed and utilized by rice; the animal waste, the rice straw enzymatic hydrolysate, the distillers' grains, the oil meal and the like can provide sufficient nutrients for rice and promote growth of the rice on one hand, can improve physical properties of soil and promote growth and development of rice root systems on the other hand, and are combined with the microelements, the compound microbial powder and the silicon fertilizer in use, and the components act together, so that the effect of improving the rice yield is achieved. The growth of the rice is promoted, the yield of the rice is increased, and the physical property of the soil is improved.
Owner:江西省农业科学院水稻研究所

An environmentally friendly plant gum-containing cataplasm and its application

The present invention belongs to the technical field of gel plaster preparation, and particularly relates to a gel plaster containing an environmentally friendly plant gum and its application. The present invention uses rice roots as raw materials to extract rice root plant gum, and uses the extracted rice root plant gum as a raw material to prepare a gel plaster, which can effectively increase the viscosity of the gel plaster and solve the problems of low viscosity and easy detachment of gel plasters in the prior art; at the same time, this gel plaster has no irritation and allergy to the skin. Secondly, the present invention makes full use of rice roots, turning waste into treasure and realizing resource recycling.
Owner:SICHUAN HAOYUN IND CO LTD

Method for regulating and controlling heavy metal content of rice through MORC6s and application

The invention provides a method for regulating and controlling the heavy metal content of rice through MORC6s and application, and particularly belongs to the technical field of rice cultivation. The invention provides a gene for regulating and controlling the heavy metal content of the root part and the overground part of rice. The gene comprises any one or more of MORC6a, MORC6b and MORC6c. The MORC6a gene, the MORC6b gene and the MORC6c gene are subjected to induced expression after being treated by the heavy metal cadmium for different times. The invention finds that the MORC6a, MORC6b and MORC6c genes play an important role in regulating and controlling the accumulation process of cadmium at the root part and the overground part of rice. By utilizing the MORC6a, MORC6b and MORC6c genes, the harm of soil cadmium pollution to the growth and development of rice plants can be relieved, the food safety problem caused by excessive cadmium content is relieved, effective reference is further provided for low-cadmium rice cultivation, and accumulation of genetic resources of the low-cadmium rice is enriched.
Owner:HAINAN RES INST OF ZHEJIANG UNIV

Cadmium-reducing rice seedling raising device

The invention belongs to the technical field of rice seedling raising devices, and particularly discloses a cadmium-reducing rice seedling raising device, which comprises a seedling raising tray, a plurality of seedling raising grids and a plurality of seedling raising trays, the bottom plate is detachably connected to the bottom of the seedling raising plate, and a plurality of water inlet holes are evenly formed in the positions, right opposite to the seedling raising grids, of the bottom plate. And the dredging device comprises a base, an inserting rod and a liquid pressing assembly, the base is horizontally arranged at the bottom of the bottom plate, and a plurality of supporting assemblies are symmetrically arranged between the edge position of the top of the base and the bottom plate. By arranging the dredging device, when a rice root system or a culture medium in the seedling raising plate blocks the water inlet holes of the bottom plate, a worker can press the seedling raising plate downwards, at the moment, the insertion rods can be accurately inserted into the corresponding water inlet holes, blockages are removed through the physical insertion effect, and the water passing and ventilation functions of the water inlet holes are rapidly recovered; the rice root system is always in an aerobic environment, the root rotting phenomenon is effectively reduced, and the seedling survival rate is improved.
Owner:YICHUN AGRI & RURAL AFFAIRS BUREAU

Rice root growth observation device

The utility model relates to the technical field of observation devices, in particular to a rice root growth observation device which comprises a planting box and a water tank. The lower end of the planting box communicates with a water tank. According to the utility model, the adjusting plate is inserted into rice for hydroponic planting, so that the root system of the rice is completely exposed in a culture solution and is protected from being blocked and extruded by soil particles, branches, root hair forms and growth directions of the root system can be clearly observed by combining with the transparent window, and subsequent image acquisition by an optical imaging head is facilitated; subsequent analysis and research are facilitated, and the accuracy of image acquisition is improved; when the rice root system is planted and observed through the rolling plate, sunlight can be adjusted to penetrate through the transparent window, the influence of long-time illumination on the root system is avoided, the root system can grow under the appropriate illumination condition, and the experiment accuracy is improved.
Owner:GUANGDONG LINJIA FANXIANG AGRICULTURAL TECHNOLOGY CO LTD +1

Bodontodesmus aveosphaeroides and application thereof

The invention discloses a strain of parateratomycosis aveosphaeroides and application thereof, and belongs to the technical field of microorganism and biological prevention and control. In order to screen new species of fungi and provide alternative strains for application of plant beneficial bacteria in agriculture, a fungus SGSF1293 is separated, and the fungus SGSF1293 is identified to be a new species of the cystis clavatum and is named as the parateratosis aveoensis, and the new species of the cystis clavatum is named as the parateratosis aveoensis. According to the present invention, the activity research results show that the strain SGSF1293 has rice root-knot nematode killing activity, plant pathogen resistance (Brassica oleracea black rot xanthomonas, Pseudomonas syringae, Ralstonia solanacearum and Fusarium oxysporum) resistance, oxidation resistance and phosphorus solubilizing activity; besides, the secondary metabolite of the strain is separated and identified, two active compounds, namely, wintergreen ambrotic acid and brefeldin A, are separated, and the wintergreen ambrotic acid has the activity of killing rice root-knot nematode. The discovery of the strain SGSF1293 and the active metabolite thereof has certain application value in the agricultural fields of plant disease control and the like.
Owner:CENTER FOR AGRICULTURAL TECHNOLOGY NORTHEAST INSTITUTE OF GEOGRAPHY & AGROECOLOGY

Application of rice metal tolerance protein coding gene osmtp7

ActiveCN118638848BBiotechnologyRice grain
The application discloses application of a rice metal tolerance protein coding gene OsMTP7 The rice metal tolerance protein coding gene OsMTP7 has the accession number of AK241225.1 in Genbank. The gene coding protein has zinc transport activity, can increase the zinc content of rice root system and above-ground part, and significantly increases the accumulation of zinc in rice grains.
Owner:NANJING AGRICULTURAL UNIVERSITY

Power supply device and method for establishing rice nano-silicon defense barrier before transplanting

ActiveCN119278786BHorticulture methodsPlant protectionNano siliconTranscriptional analysis
The present invention discloses an energized device and method for establishing a rice nano-silicon defense barrier before transplanting. When using the device, the rice roots can be immersed in an energized nutrient solution containing nano-silicon before transplanting, and a silicon barrier can be formed at the roots after 30 minutes. The present invention significantly improves the growth of rice under heavy metal stress and inhibits the absorption of heavy metals in the aboveground part. In a 5-day stress experiment, the effect of electrically stimulated nano-silicon polymerization was better than that of traditional matrix-applied nano-silicon. In addition, transcriptional analysis further revealed that the gene regulatory effect of electrically stimulated nano-silicon was significantly different from that of simple electrical stimulation. The present invention provides a convenient treatment method for improving the stress resistance of rice before transplanting.
Owner:ZHEJIANG UNIV

Rice planting method for reducing soil microplastic pollution

The invention belongs to the technical field of rice planting, and particularly relates to a rice planting method for reducing soil microplastic pollution. By applying the soil conditioner, the pea crop rotation, the compost treatment and the specific irrigation strategy, the soil micro-plastic pollution can be effectively reduced; the pea plants can enrich micro-plastic particles in the soil through root exudates and self metabolic activities to a certain extent, and the pea plants are subsequently composted, so that the micro-plastic particles enriched in the pea plants can be further degraded; biochar in the soil conditioner can adsorb micro-plastic particles, the free state of the micro-plastic particles in soil is reduced, and the phanerochaete chrysosporium, the rhodococcus fence celebrating and the trichoderma harzianum can synergistically degrade the micro-plastic particles; the dry-wet alternate cycle treatment can further reduce the absorption of the rice plants to the micro-plastics, can promote the development of rice roots and the absorption of nutrients, and improves the stress resistance of the rice.
Owner:HAINAN JINSE CHUNLEI AGRI TECH CO LTD

Compound fertilizer containing traditional Chinese medicine components and application of compound fertilizer in prevention and treatment of rice sheath blight disease

The invention discloses a compound fertilizer containing traditional Chinese medicine components and application of the compound fertilizer in prevention and treatment of rice sheath blight disease, and belongs to the technical field of fertilizer preparation. The compound fertilizer containing the traditional Chinese medicine components is prepared from the following raw materials in parts by mass: 3 to 5 parts of radix puerariae, 4 to 6 parts of onion, 2 to 3 parts of herba menthae, 2 to 3 parts of flos chrysanthemi indici, 20 to 30 parts of humic acid, 1 to 1.5 parts of compound amino acid, 2 to 3 parts of microbial agent, 12 to 15 parts of soybean meal, 5 to 8 parts of silicon fertilizer, 10 to 15 parts of phosphate fertilizer and 30 to 40 parts of straw fermentation product. The compound fertilizer containing the traditional Chinese medicine components can effectively prevent and treat rice sheath blight disease, stimulate rice growth, improve rice seedling quality, develop rice root systems and improve rice tillering amount, thereby improving disease resistance and yield of rice.
Owner:INST OF PLANT PROTECTION JIANGXI ACAD OF AGRI SCI

Gene OsARF1 for regulating and controlling ability of rice root system to penetrate through hard soil and application of gene OsARF1

PendingCN121992001AImproved ability to penetrate hard soilImproved rice cultivationPlant peptidesFermentationBiotechnologyAlkali soil
The invention discloses a gene OsARF1 for regulating and controlling the ability of a rice root system to penetrate through hard soil and application of the gene OsARF1. The amino acid sequence coded by the gene OsARF1 is as shown in SEQ ID No. 2. The nucleotide sequence of the gene OsARF1 is as shown in SEQ ID No. 1 (sequence identifier number 1). According to the invention, the OsARF1 gene is over-expressed in rice, so that the expression level of the OsARF1 gene in a rice variety is improved, and then a rice strain with enhanced root penetrating power in hard soil is obtained. The expression of the OsARF1 gene is up-regulated under the condition of hard soil, the expression of the downstream OsCESA6 gene is inhibited, the cellulose synthesis and cell wall thickening of a cortical cell wall are reduced, the thickening of a root system is promoted, and the ability of the root system penetrating through the hard soil is improved. The application of the invention can be used for cultivating a new rice variety suitable for growing in hard soil, and has important significance for improving rice planting under poor soil conditions such as saline-alkali soil.
Owner:SHANGHAI JIAOTONG UNIV

Nanometer zeolite coupled biomass charcoal-based slow-release fertilizer suitable for acidic rice soil, preparation method and application of nanometer zeolite coupled biomass charcoal-based slow-release fertilizer

The invention discloses a nano zeolite coupled biomass charcoal-based slow release fertilizer suitable for acidic rice soil, a preparation method and application, and aims to solve the problems of low pH value, high methane emission flux, low nutrient utilization rate and the like of the acidic rice soil. By constructing a nano zeolite-biomass charcoal-slow release fertilizer-silicon fertilizer synergistic regulation system, the stability of organic carbon in soil and the slow release capacity of nutrients are improved by utilizing a composite material formed by embedding nano zeolite into pores of biomass charcoal; the alkalinity and physiological functions of the silicon fertilizer are used for improving the soil pH and the oxygen secreting capacity of the rice root system, and cooperative emission reduction is achieved through the two paths of inhibiting methane generation and promoting methane oxidation. Field test results show that the pH value of acidic rice soil can be increased by 0.5-1.5 units in a rice growing season, the accumulated emission of methane is reduced by 27%-40%, and the rice yield is increased by 12%-20%. The invention has the advantages of easily available raw materials, simple process, good operability and the like, and can realize the synergistic effect of acid soil improvement, carbon sequestration and emission reduction and crop yield and efficiency increase.
Owner:ZHEJIANG FORESTRY UNIVERSITY

Rhodococcus ZJUHULJT1 and application thereof in prevention and treatment of paratrichoder root knot nematode

ActiveCN120758426BSignificant direct inhibitory effectInhibitionBiocideBacteriaBiotechnologyDisease
The application provides a strain of Rhodococcus ZJUHULJT1 and application of the strain in prevention and treatment of paratyphaceae root-knot nematodes, and belongs to the technical field of biological prevention and treatment of root-knot nematodes. Rhodococcus The Rhodococcus (sp.) ZJUHULJT1 is preserved in the China Center for Type Culture Collection, and the preservation number is CCTCC NO: M 20251182; the Rhodococcus ZJUHULJT1 can significantly inhibit the infection and reproduction of root-knot nematodes, reduce the number of rice root knots, promote the synthesis of defense-related hormones of rice roots, and improve the disease resistance of rice; through the multiple inhibition of paratyphaceae root-knot nematodes, the Rhodococcus ZJUHULJT1 can be applied to the prevention and treatment of rice root-knot nematodes, has good prevention and treatment effect, and provides a new technical means for the pollution-free reduction of paratyphaceae root-knot nematode diseases.
Owner:HAINAN RES INST OF ZHEJIANG UNIV

Peanut no-tillage planting method

The invention discloses a no-tillage peanut planting method, which relates to the technical field of peanut planting, and is characterized in that soil is not disturbed after rice in the last season is harvested, rice stubbles cover the surface of the soil, rice roots are left in the soil, shallow ploughing and weeding are performed before sowing, and single-grain direct sowing of peanuts is adopted. According to the method, the physicochemical properties of soil are improved through no-tillage, the community abundance of soil microorganisms and the abundance of soil nitrification function microorganisms are promoted, conversion of soil nitrogen is improved, absorption and utilization of nitrogen by plants are promoted, and therefore accumulation of volatile flavor substances of peanuts is promoted.
Owner:ZHONGKAI UNIV OF AGRI & ENG

Rice root system salt tolerance adjusting method based on exogenous spermidine

The invention relates to the technical field of rice stress-resistant cultivation, and discloses a rice root system salt tolerance adjusting method based on exogenous spermidine, which comprises the following core steps: in the critical period of rice root system development, directionally applying a spermidine solution subjected to purity verification to a rice root system area, by accurately regulating and controlling the application concentration, frequency, duration and application environment conditions of spermidine, the osmotic regulation capability and the anti-oxidation system function of a rice root system in a high-salt environment with the soil conductivity larger than or equal to 2 dS / m are improved, the salt tolerance of the root system is remarkably improved, and then growth and development of rice are guaranteed. The spermidine is a straight-chain polyamine compound with good biocompatibility, the chemical purity is not lower than 98%, no heavy metal is left, and the contents of lead, cadmium and mercury are all smaller than or equal to 0.1 mg / kg. According to the invention, precise targeted regulation and control of the salt tolerance of the rice root system are realized, and the regulation effect is stable and remarkable.
Owner:GUANGDONG OCEAN UNIVERSITY

Genes controlling rice root elongation and tillering and uses thereof

The present application relates to the field of plant growth and development molecular biology, and particularly relates to a gene OsARF14b and application thereof in controlling rice root elongation and tillering, the gene OsARF14b has the nucleotide sequence shown in SEQ ID NO:1, and the application of the gene OsARF14b in regulating rice root elongation and tillering traits.The present application obtains overexpression and knockout transgenic materials by cloning the gene OsARF14b, constructing a transgenic vector, and statistically analyzing the phenotype of the transgenic materials, and finds that the root length and tiller number in different materials change significantly, compared with the wild type (Zhonghua 11, ZH11), the root length of the knockout transgenic material (cas9) is significantly shortened, and the tiller number is significantly increased, the root length of the overexpression material (OE) is lengthened, and the tiller number is significantly reduced, which indicates that the OsARF14b gene plays an important regulatory function in the process of plant root elongation and tillering.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY

A root-promoting active substance isolated from the metabolites of the plant probiotic Trichoderma and its application

The present invention discloses a root-promoting active substance separated from the metabolites of the plant probiotic Trichoderma and its application. The benzene-ring type root-promoting active substance has the molecular formula C7H7NO2, has the effect of promoting plant root development, significantly increases the total root length, total surface area and total root number of Arabidopsis thaliana, tomatoes and rice, has a stable effect, and has good application prospects; it can be used as a root-promoting agent in agricultural green production.
Owner:NANJING AGRICULTURAL UNIVERSITY