18 results about "Stem length" patented technology

The invention relates to the technical field of biology, in particular to a tobacco NtATC3 / 4 gene and application of the tobacco NtATC3 / 4 gene to regulation and control of plant flowering and leaf surface area. The function of the NtATC3 / 4 gene is researched by using a virus induced gene silencing (VIGS) technology, and the result shows that after the NtATC3 / 4 gene is silenced, the flowering time of tobacco can be delayed, the leaf surface area can be increased and / or the stem length can be reduced. The results show that the flowering time of tobacco can be controlled by regulating and controlling the expression quantity of the NtATC3 / 4 gene, so that early flowering is prevented and controlled, the yield reduction caused by cold and drought stress is reduced, the leaf surface area is increased, and the income of tobacco growers is increased, and therefore, the NtATC3 / 4 gene has a wide market application prospect.

The invention belongs to the technical field of plant breeding in molecular biology, and provides a cotton GhVIP1 gene and application thereof in drought resistance and salt tolerance of plants. The nucleotide sequence of the GhVIP1 gene is as shown in SEQ ID NO: 1, and the amino acid sequence of the GhVIP1 gene is as shown in SEQ ID NO: 2. The gene is obviously up-regulated under the induction of salt and drought stress. An arabidopsis thaliana homozygous line overexpressed with the GhVIP1 gene is obtained through a transgenic technology, under the stress of drought and salt, the seed germination rate of the arabidopsis thaliana overexpressed with the gene is higher than that of a wild type, the growth condition of a transgenic line in the seedling stage is better than that of the wild type, the stem length, the total antioxidant capacity and the chlorophyll content are all superior to those of the wild type, and the MDA content is lower than that of the wild type; further, the drought resistance and the salt resistance of the arabidopsis thaliana are improved. When the gene is applied to drought-resistant and salt-resistant breeding of plants, the drought resistance and salt resistance of the plants can be improved, and an effective alternative scheme is provided for molecular breeding of drought-resistant and salt-resistant crops.

The application relates to the field of microbial technology and discloses a Pseudomonas asiatica HNHMPs-260 and application thereof. The strain is preserved in the Guangdong Microbial Culture Collection Center, and the preservation number is GDMCC No: 66854. Fermentation supernatant of the strain can prevent and treat root-knot nematode disease of Hami melon caused by Meloidogyne javanica. Experiments show that the fermentation supernatant has strong toxic effects on second instar larvae of root-knot nematodes and can significantly inhibit the hatching of egg masses and egg grains. In addition, the fermentation supernatant has good thermal stability and storage stability, and still maintains more than 80% nematocidal activity after high-temperature treatment at 121 DEG C and long-term storage at 4 DEG C. Meanwhile, the fermentation supernatant of the strain can promote the growth of Hami melon plants, improve physiological indexes such as root length, stem length, fresh weight and dry weight, and has the application potential of being developed into efficient, environment-friendly and multifunctional biological pesticides.

The utility model provides a pomacea canaliculata egg clamping device which comprises a rod body, and the two ends of the rod body in the length direction are connected with an installation block and an operation grip respectively. Two clamping plates are arranged on the mounting block in a sliding mode and slide in the direction close to or away from each other. The clamping plate comprises a connecting part and a clamping part, the connecting part and the clamping part are connected to form a T shape, the connecting part is connected with the mounting block, and the length direction of the clamping part is perpendicular to the axial direction of the rod body; a driving assembly is further arranged on the mounting block and used for driving the clamping plate to slide; a control assembly used for controlling starting and stopping of the motor is arranged on the operation grip. According to the technical scheme, on the premise that damage to plants is reduced, ampullaria gigas eggs can be removed, and biological invasion is effectively prevented and controlled.

The application discloses a kind of ZmDAR1b protein in the method for regulating corn height, comprising the following steps: S1 cloning corn gene ZmDAR1b;S2 analysis corn gene ZmDAR1b's tissue expression pattern;S3 create corn ZmDAR1b gene editing knockout mutant.The ZmDAR1b protein described in the application, regulate protein activity or content or regulate ZmDAR1b protein coding gene expression substance, can regulate plant height, stem length, cell expansion, kernel size.The application obtains the transgenic knockout mutant material of ZmDAR1b by gene editing technology and corn genetic transformation technology, and carries out multi-year multi-point field test and observation, and the biological function of ZmDAR1b gene in corn is determined, which provides important gene resources for corn excellent variety breeding, and has very important application value.

Aspects of the disclosure relate to plants containing one or more of a mutant sler (Solyc08g061560) gene or a homolog thereof, a mutant sp5g (So1yc05g053850) gene or a homolog thereof and a mutant sp (Solyc06g074350) gene or a homolog thereof, as well as methods of producing such plants. In some aspects, such plants have one or more improved traits, such as modified stem length and modified time for flowering and fruit production.

The invention discloses a method suitable for evaluating the top-free flooding resistance of a tropical water lily stock plant and a fetal seedling, and relates to the field of adversity stress, and the water lily stock plant or the fetal seedling is subjected to top-free flooding treatment with different time lengths. Determining the damage condition by taking the leaf length, the leaf width, the leaf ear length, the leaf area, the stem length, the stem diameter, the chlorophyll content and the leaf cell structure of the normally growing and waterlogged plant as evaluation indexes, and calculating the leaf rot index and the flood tolerance index of the to-be-detected water lily according to the flood damage leaf rot area to realize evaluation. According to the method, the influence of waterlogging on the external phenotype and internal structure of the water lily is considered, the difference of waterlogging treatment on plant ages is considered, the waterlogging resistance is determined through phenotype and cell structure changes, the waterlogging resistance level of the tropical fetal water lily is determined, and the method has the remarkable advantages of being short in evaluation period, visual, reliable and the like. The method is beneficial for promoting innovation of water lily flooding-resistant germplasm and breeding of a flooding-resistant fetal water lily variety, and a new method is provided for research of a water lily flooding-resistant mechanism.

The invention discloses a salt-tolerant nitrogen-fixing Klebsiella pasteurii and application thereof, and relates to the technical field of microorganisms, and the Klebsiella pasteurii S8812 provided by the invention is a salt-tolerant combined nitrogen-fixing bacterial strain which is screened from corn roots and has outstanding comprehensive performance; the strain is preserved in the China General Microbiological Culture Collection Center (CGMCC) on March 21, 2025, and the preservation number of the strain is CGMCC No: 33923. The strain is high in nitrogen fixation activity, strong in salt resistance and capable of tolerating a culture medium environment with the NaCl concentration as high as 7%. Meanwhile, the strain also has the functions of dissolving organic phosphorus, dissolving potassium, producing amylase, producing ammonia, producing siderophore, producing auxin and the like. Greenhouse pot experiments show that the strain has a growth promoting effect on various crops such as wheat and corn, and the plant height, stem length, fresh weight and the like of plants can be remarkably improved. In addition, the strain has a good inhibition effect on rhizoctonia solani, pectobacterium and xanthomonas oryzae.

This invention discloses a microbial compound inoculant and its application in blueberry growth, belonging to the field of microbial inoculant technology. The compound inoculant is composed of *Bacillus cereus*, *Pseudomonas koreensis*, and *Rhodococcus qingshengii* in a viable count-to-mass ratio of 1:1:1. The three strains exhibit significant synergistic effects, not only improving growth indicators such as stem length, root length, fresh weight, and dry weight of blueberries, but also increasing the content of soluble sugars, soluble proteins, and proline in blueberry leaves. The microbial compound inoculant constructed in this invention is adapted to the acidic growth environment of blueberries, is environmentally friendly, and low in cost, solving the problems of fertilizer dependence, slow growth, and lack of specialized inoculants in blueberry cultivation, and providing technical support for large-scale artificial cultivation of blueberries.

The application discloses a Pseudomonas burcheri ZJL-8 and application thereof, and belongs to the technical field of microorganisms. The application is to solve the problems of environmental pollution caused by chemical fertilizer application and lack of special bacterial agent in the production of blueberry. The technical scheme comprises the following steps: a bacterium ZJL-8 is screened and separated in the rhizosphere soil of blueberry, the bacterium ZJL-8 is preserved in the China Center for Type Culture Collection, and the preservation number is CCTCC NO: M 20242867, and the bacterium ZJL-8 is named as Pseudomonas brenneri ZJL-8. The strain has the abilities of nitrogen fixation, inorganic phosphorus dissolution, iron carrier secretion and indole acetic acid (IAA) synthesis, can significantly improve the stem length, root length, fresh weight and dry weight of the blueberry after inoculation, increase the proline content in the leaf, and reduce the malondialdehyde (MDA) content, which indicates that the bacterium has a certain promoting capacity for the growth of the blueberry, and the application provides a technical reference for the large-scale planting and commercial development of the blueberry in the later period.

The invention belongs to the technical field of vegetative propagation of seedlings, and particularly relates to a tissue culture subculture rooting and seedling method for baeckea frutescens. The method comprises the following steps: inoculating subculture bottle seedlings of baeckea frutescens into a strong seedling culture medium for culturing to obtain strong seedlings, wherein the formula of the strong seedling culture medium comprises MS, 20-35g / L of sucrose and 5-6g / L of agar; the strong seedlings are inoculated into a rooting culture medium to be cultured to obtain rooted seedlings, and the formula of the rooting culture medium is as follows: 1 / 2MS, 1-3mg / L of IBA, 1-2mg / L of NAA and 25-35g / L of sucrose; the rooted seedlings are transplanted outdoors for seedling hardening, bottle seedlings are planted into a mixed matrix of nutrient soil and yellow subsoil to be cultured, and water is sprayed for moisturizing. After the subculture bottle seedlings of the baeckea frutescens are cultured for 30 days through the strong seedling culture medium, the stems of the baeckea frutescens are increased and thickened, the rooting rate of the obtained strong seedlings reaches 80%-100% after the strong seedlings are cultured for 60 days through the rooting culture medium, the stem length of the tissue culture seedlings is 5 cm or above, the number of adventitious roots is 6 or above, and the average root length is 1.5 cm or above. After outdoor seedling hardening, the transplanting survival rate reaches 90.15% after 30 days of culture.

The application discloses a kossakia sp. LY-1 and application thereof in promoting rice growth, which is preserved in China Center for Type Culture Collection and has a preservation number CCTCC NO: M 20242320. The strain carries complete nifHDKY-ENX-BQ-VZW nitrogen fixation gene cluster, and has a nitrogenase content of 160 ng / mL. Meanwhile, the strain has four growth promoting functions of dissolving inorganic phosphorus (57 mg / L), producing indole acetic acid (19.76 mg / L) and producing siderophore (48%). Under the condition of nitrogen-free water culture, the strain can significantly promote the growth of rice seedlings, and the stem length is increased by 25.7% and the biomass is increased by 45.6% compared with a control, so that the strain provides a functional strain resource for green production of rice.

The application belongs to the field of agricultural microorganism technology, and discloses a bacillus strain and application of the bacillus strain in promoting growth of tomatoes and inhibiting fusarium oxysporum. Bacillus pseudomycoides ) SYSU BS000486, which is preserved in the China General Microbiological Culture Collection Center and has a preservation number of CGMCC No. 36880. The bacillus mycoides has obvious antagonistic effect on fusarium oxysporum, can significantly reduce the disease incidence of tomato diseases caused by fusarium oxysporum, and effectively relieves the biological stress of tomato plants caused by infection of fusarium oxysporum. Meanwhile, the bacillus mycoides can promote the growth of plants, so that the stem length and aboveground biomass of the plants are significantly increased. The bacillus mycoides has wide application prospect in the fields of agricultural microbial agent research and development, biological control of crops and green yield increase.

The application discloses a kind of Huangjing sprout cultivation methods, comprising the following steps: parent pretreatment;Sprout induction culture;Sprout culture;Parent includes conventional root rhizome, aseptic rhizome and Huangjing seed;Sprout induction culture includes conventional water culture, double-layer water culture and sand bed germination;Sprout culture includes spraying nutrient solution and nutrient solution water planting, and the culture temperature of sprout culture is 4-25 ℃.The application is obtained by sequentially carrying out parent pretreatment, sprout induction culture, sprout culture, Huangjing sprout, by pretreatment to parent, by sprout induction culture and sprout culture, on the one hand, Huangjing's sprouting rate can be improved, on the other hand, Huangjing sprout's stem length and stem thickness can be improved, and then the edibility of Huangjing sprout is improved;Through the cultivation method, the quality and edibility of Huangjing sprout are effectively improved, the cultivation time of Huangjing sprout is effectively shortened, and the promotion of Huangjing sprout is beneficial.

This invention pertains to the field of rose harvesting, and particularly relates to a rose harvesting and receiving device. It includes a wheeled frame with a conveyor mounted on it. One end of the conveyor has a harvesting device and a plucking device, while the other end, via support legs, has a collection box for receiving the material conveyed by the conveyor. The frame includes two parallel base rods, each with a vertical rod on one side of the support legs. The conveyor is mounted on the vertical rod. By incorporating a guide section, roses higher than the guide section's support plate are blocked after entering the divider. As the device moves, the support plate tilts the roses, changing their relative position until the rose petals are fully within the transition plate and connecting plate of the divider, where they are cut by toothed blades. This improves the uniformity of the flower stem length.

The invention discloses a moso bamboo stalk elongation and drought resistance double-effect regulation gene PeHECT1, and relates to the technical field of plant molecular biology. The PeHECT1 gene overexpression vector is transferred into a japonica rice variety Nipponbare through an agrobacterium tumefaciens-mediated rice mature embryo callus transformation method, and the result shows that compared with a wild type strain, an overexpression strain shows obvious drought resistance under the drought stress condition, the length between stem nodes of the overexpression strain is obviously changed, and the yield of the overexpression strain is obviously increased. The stalk length is obviously shortened. The result provides a theoretical basis for research on moso bamboo stalk elongation and drought resistance, and also provides important resources for rice plant type improvement and drought resistance improvement.

The invention relates to a celery plant (Apium graveolens L. dulce) carrying a genetic determinant that leads to short leaf blades and / or a more uniform distribution of stem lengths as compared to celery plants not carrying the genetic determinant, wherein said determinant is obtainable by introgression from a plant grown from seed of which a representative sample was deposited with the NCIMB under Accession No. NCIMB 41513. The invention also relates to seeds and other propagation material of the plant and to its progeny as well as to food products that comprise the consumable parts of the plant.

The invention relates to the technical field of forest biology, in particular to a method for inhibiting generation of branch thorns of lycium ruthenicum by using trehalose-6-dipotassium phosphate. And dropwise adding the trehalose-6-dipotassium phosphate solution to the terminal bud of the thorn plant of the lycium ruthenicum. The trehalose-6-dipotassium phosphate significantly inhibits the occurrence of the branch thorns of the lycium ruthenicum, has concentration dependence, has the most significant treatment effect of 480 [mu] M, can almost completely inhibit the generation of the branch thorns, and significantly inhibits the occurrence of the branch thorns in 80 [mu] M and 160 [mu] M treatment groups under the condition of hardly influencing the growth of stems and leaves. 320 [mu] M and 480 [mu] M treatment groups significantly inhibit the occurrence of branch thorns and also significantly inhibit the growth of stem lengths, which results in plant dwarfing and no thorn. In large-scale cultivation of spiny economic crops, the spiny-free characteristic solves the problem of harvesting scratching, stem and leaf growth regulation and control are matched, a supporting frame does not need to be built, protection equipment can be omitted during harvesting, and the manual harvesting efficiency is improved.