19 results about "Leaf width" patented technology

The invention discloses application of a PdePin1At protein and a coding gene thereof in regulation and control of a plant tree form. According to the invention, a transgenic poplar with reduced PdePin1At gene expression quantity is constructed by using a microRNA interference technology, and experiments prove that compared with a wild poplar, the leaf area, the leaf width, the leaf length, the branch included angle, the petiole length and the phyllotactic angle of the transgenic poplar are reduced, and the number of leaves / stem nodes is increased. The method is of great significance to molecular mechanism and theoretical research of regulating and controlling poplar tree forms, leaf shapes and quantity, branch angles and phyllotaxis, and is of great guiding significance to directional cultivation of trees with tree forms meeting actual production requirements. Under the condition that the plant height is not changed, the number of leaves of newborn organs can be increased, so that the number of photosynthetic organs is increased; and by changing the included angle of the branches, sunshine shielding can be reduced during close planting of the forest trees. Therefore, the method also has important guiding significance on agricultural production.

The application discloses application of a PHB9 gene in regulating rice leaf morphology and belongs to the technical field of genetic engineering.The CDS sequence of the PHB9 gene is shown as SEQ ID NO.2.It is found through experiments that overexpression of the PHB9 gene increases leaf length and leaf width, and the PHB9 gene has a significant effect on regulating rice leaf morphology.Further, changes in vascular systems, mitochondria and chloroplast structures in the internal structure of the leaf are analyzed, and it is shown that the vascular systems, mitochondria and chloroplast structures change when the leaf morphology is regulated, and the morphological changes in the internal structure of the leaf affect the changes in the leaf phenotype, and have a significant influence on improving the photosynthetic rate of the leaf.It is also found that overexpression of the PHB9 gene reduces the sensitivity of rice seeds to ABA, promotes seed germination and root growth.The application provides a new gene for breeding of leaf morphology building, root development and seed germination.

This application relates to the field of maize technology, specifically to the ZmPAR1 gene and its applications. A gene encoding a nucleoside kinase was discovered in the maize genome. This nucleoside kinase was obtained through in vitro recombinant expression of the encoded gene. Testing revealed that this nucleoside kinase exhibits binding activity to various nucleoside substrates and can catalyze the synthesis of monophosphate nucleotides from nucleosides. This gene influences maize plant height, leaf angle, ear height, leaf length, and leaf width. Knocking down or overexpressing this gene can yield new maize materials, providing technical support for the breeding of new maize materials and the construction of germplasm resources.

The invention discloses a rice leaf phenotype parameter extraction method. According to the method, firstly, collected rice three-dimensional point cloud data are preprocessed, then skeletonization processing is carried out, and a rice point cloud skeleton maintaining a topological structure is obtained; on the basis, identifying a blade tip point and a root node, and converting the skeleton into a graph structure; the method comprises the following steps of: endowing growth cost weights to edges of a graph, and extracting a plurality of blade central axes by taking a blade tip point and a root node as path end points; based on the central axis of a single blade, a corresponding single-blade point cloud can be segmented from an original point cloud, and then multi-dimensional phenotypic parameters such as the blade length, the blade width and the blade included angle are calculated. According to the method, high-throughput and high-precision leaf phenotype extraction under a complex plant structure is realized, and the crop breeding efficiency and the intelligent level of agricultural management are effectively improved.

Embodiments of the present disclosure provide a plant phenotype parameter extraction method, device and equipment and a storage medium, relating to the technical field of data processing. The method obtains plant preliminary voxel data from plant point cloud data, and performs voxel segmentation on the plant preliminary voxel data to obtain leaf point cloud data of the plant, thereby performing parameter extraction on different plant parts, improving data processing efficiency and result accuracy. Next, principal component analysis is performed on the plant point cloud data to obtain plant height and plant width, and similarity clustering is performed on the leaf point cloud data to obtain the number of leaves of the plant. Then, principal component analysis is performed on the leaf point cloud data to obtain leaf length and leaf width, and surface reconstruction is performed on the leaf point cloud data to obtain leaf area. Finally, rich phenotype parameters are obtained from the point cloud data, including plant height, plant width, number of leaves, leaf length, leaf width and leaf area.

The present invention relates to a Eruca sativa seed designated 88-CR31138 RZ, which exhibits a combination of traits including an erect leaf attitude, a leaf blade with a medium to dark greyish green color, a medium leaf width, and a medium height at flowering stage. The present invention also relates to a Eruca sativa plant produced by growing the 88-CR31138 RZ seed. The invention further relates to methods for producing the cultivated rocket cultivar, represented by cultivated rocket variety 88-CR31138 RZ.

The invention belongs to the technical field of gene engineering, and particularly relates to application of an AtDAR3 gene and related biological materials thereof in improving rice yield traits. The nucleotide sequence of the AtDAR3 gene is shown as SEQ ID NO.1. After the AtDAR3 gene of arabidopsis thaliana is subjected to heterologous overexpression in rice, it is found that the leaf length, the leaf width, the leaf area, the tiller number, the grain number per ear and the yield of the rice can be increased, and high-yield rice varieties can be cultivated through the AtDAR3 gene and related biological materials of the AtDAR3 gene.

The present invention relates to the field of microbial technology, and in particular to a strain of Pezicula ericae XA4 and its application. The present invention provides a strain of Pezicula ericae XA4, which was deposited in the General Microbiology Center of the China Microorganism Culture Collection Administration on June 26, 2024, with a deposit number of CGMCC No.41350. The XA4 provided by the present invention was back-grafted on aseptically cultured Dahurian rhododendron seedlings, and trypan blue staining was used to detect that mycorrhizal fungi could be back-grafted successfully. Compared with the uninoculated strain, the inoculation of XA4 had the most significant growth-promoting effect on Dahurian rhododendron. Its plant height, leaf length, leaf width, root length, biomass, chlorophyll content, net photosynthetic rate, stomatal conductance, intercellular CO2 concentration, transpiration rate, and root activity were all improved compared with the uninoculated strain.

Modifications of the maize gene ZmAN3 which provides maize plants with increased leaf length, leaf width, leaf area, leaf fraction fresh weight, leaf fraction dry weight, stem fraction dry weight, and / or 1000 kernel weight are disclosed. Also disclosed are seed obtained from such plants as well as use of the seed and plants to produce commodity productions and in maize breeding.

The application discloses application of a maize ZmArf1a gene in maize variety breeding and belongs to the technical field of molecular breeding. The CDS sequence of the maize ZmArf1a gene is shown as SEQ ID NO. 3, and the amino acid sequence is shown as SEQ ID NO. 4. The application first finds that the plant with the knocked-out maize ZmArf1a gene grows normally, the tassel is fertile, the female spike axis and the grain are normal and full, but the leaf length, the leaf width and the plant height are significantly reduced. The provided maize ZmArf1a gene can be used as a candidate gene for breeding a dwarf and dense planting maize variety, and is expected to reduce the workload of breeding and accelerate the breeding process.

The invention belongs to the technical field of molecular genetics, and particularly relates to an application of a ZmNAL4 gene or an encoded protein thereof in regulation and control of leaf morphology and plant height of a plant. The analysis of the expression mode of the flavin monooxygenase gene ZmNAL4 in amphiphilic and transgenic plants shows that the leaf width of an overexpression strain is increased by 13.2% and the plant height is increased by 14.8% compared with that of a gene editing strain, and the leaf area and the plant height of an arabidopsis overexpression plant are obviously higher than those of a wild plant, so that the ZmNAL4 has a positive regulation effect on the leaf width; interaction protein analysis identifies that density-tolerant response factors Zmfdx1 and Zmfdx2 and leaf included angle candidate genes ZmPDHE1 and ZmNAL4 interact with each other; plant endogenous hormone analysis shows that the ZmNAL4 regulates and controls the leaf form and the plant height by influencing an auxin signal and a brassinolide path; gene resources and theoretical basis are provided for research on density-tolerant plant types with reasonable leaf widths of corn, and the method has important significance on density-tolerant high-yield breeding.

This disclosure relates to a variable slit collimator for a radiotherapy system, such as a spatially divided radiotherapy system, which comprises a plurality of collimator leaf pairs, each collimator leaf pair comprising two tapered collimator leaves that abut each other to form a leaf of the variable slit collimator, and a leaf adjustment mechanism for adjusting the leaf width of the variable slit collimator by moving the two tapered collimator leaves toward and away from each other in the longitudinal direction of the two tapered collimator leaves. This disclosure further relates to a radiotherapy system and to a method for controlling a slit collimator in a radiotherapy system, such as a spatially divided radiotherapy system.

The utility model relates to a solar heating venetian blind which comprises an upper beam, a lower beam and a plurality of blades, a pull rope is arranged on the upper beam, the blades are hung between the upper beam and the lower beam in parallel through ladder ropes, the distance larger than the width of one blade is reserved between the blades on the top, and a heat absorption layer is arranged on one face of each blade. According to the solar heating venetian blind provided by the utility model, the heat absorption layer is arranged on one side of each blade, and the other side of each blade faces outdoors when the solar heating venetian blind is normally used, so that the functions of shielding light and insulating heat are achieved; when the weather is cold and the air temperature is low, the blades are turned over to enable the heat absorption layer to face outdoors, so that heat of solar radiation can be absorbed while light rays are shielded; the distance larger than the width of one blade is reserved between the blades at the top, when the curtain is closed, the blades at the top cannot be completely closed, gaps for sunlight to penetrate are reserved, certain lighting quantity is provided for the interior of a room, and the problem that indoor lighting is affected due to the fact that the curtain is completely closed is solved.

The invention provides application of a rice variable shear variant NAL1-Del 2EX in regulation and control of rice plant height, leaf width and photosynthesis.

The present invention relates to a Diplotaxis tenuifolia seed designated 89-WR35809 RZ, which exhibits a combination of traits including intermediate resistance to fusarium, a medium leaf length, a medium leaf width, and early flowering. The present invention also relates to a Diplotaxis tenuifolia plant produced by growing the 89-WR35809 RZ seed. The invention further relates to methods for producing the wild rocket cultivar, represented by wild rocket variety 89-WR35809 RZ.

The present invention relates to a Eruca sativa seed designated 88-CR31134 RZ, which exhibits a combination of traits including a narrow to medium leaf width, a strong leaf division, and a tall plant height at flowering stage. The present invention also relates to a Eruca sativa plant produced by growing the 88-CR31134 RZ seed. The invention further relates to methods for producing the cultivated rocket cultivar, represented by cultivated rocket variety 88-CR31134 RZ.

The invention belongs to the technical field of methods for regulating and controlling growth of ryegrass plants, and discloses a ryegrass LpZFP1 gene for regulating and controlling growth and development and application thereof, and the nucleotide sequence of the LpZFP1 gene is as shown in SEQ ID NO: 1; the corresponding amino acid sequence is as shown in SEQ ID NO: 2; and the nucleotide sequence of the corresponding promoter is as shown in SEQ ID NO: 3. Transgenic ryegrass is obtained through a perennial ryegrass genetic transformation system of agrobacterium infected callus, and the result shows that the plant height, the leaf length and the leaf width of the plant can be remarkably increased through overexpression of the gene. The discovery of the LpZFP1 gene provides gene resources for the cultivation of perennial ryegrass new germplasm, can significantly shorten the lawn forming time and improve the feeding value, and the application of the gene has important production practice significance.

The invention discloses a crop growth simulation method and system, and relates to the technical field of irrigation, and the method comprises the steps: building a physiological model according to the physiological change of crops, comprising the following steps: simulating a three-dimensional leaf model of a crop according to the leaf length, the leaf width, the leaf area, the leaf curl rate and the leaf distribution condition of the crop, simulating a three-dimensional physiological model of the crop according to the leaf area change degree of the crop, assimilation products of the crop under photosynthesis, respiration consumption of the crop under respiration, growth weight increment of the crop and organ dry weight of the crop; and jointly simulating the growth condition of the crop according to the three-dimensional leaf model of the crop and the three-dimensional physiological model of the crop. The device can truly simulate the crop growth process.

The application discloses a tea tree CsGAMYB gene and application thereof in regulation of leaf growth and development, wherein the CDS sequence is shown as SEQ ID NO. 1. A gene interfering with CsGAMYB gene expression is a precursor sequence of a tea tree miR159b gene. In an Arabidopsis thaliana miR159b overexpression strain, leaf length, leaf width, leaf area and petiole length are significantly increased; in an Arabidopsis thaliana CsGAMYB overexpression strain, leaf length, leaf width, leaf area and petiole length are significantly reduced; through microscope observation, lower epidermal cells of the leaf are obviously less than WT in the miR159b overexpression plant, and obviously more than WT in the CsGAMYB overexpression plant, overexpression of CsGAMYB in the plant inhibits cell growth, leading to reduction of leaf thickness, area, length and width, and overexpression of miR159b can restore development of the plant leaf.