72 results about "Plant morphology" patented technology

The invention discloses a method of measuring plant morphology by adopting a three-dimensional laser scanner way. The method comprises the following steps: step 1, obtaining point cloud data of a plant by adopting the three-dimensional laser scanner way, and leading into a three-dimensional graphic software; step 2, processing the point cloud data to obtain a TIN (Triangular Irregular Network) model of the plant; step 3, converting a coordinate system so as to enable a Z shaft to be in the same direction with a stalk vertical direction of the plant; step 4, processing the TIN model of the plant in the three-dimensional graphic software, so as to obtain a morphological parameter of the plant. The method provided by the invention has the following beneficial effects of reducing manual influence by carrying out non-contact measurement on the plant morphology, so as to realize monitoring an in-situ dynamics of the plants, and realize the characteristics of high precision; furthermore, the morphological indexes, such as the cross sectional area of the stalks, the radius of curvature of blades, the angle of blades and the like which are difficult to obtain, can be obtained conveniently; in addition, the obtained data is of a digital format, so as to be convenient to store and examine at any time and realize plant digitization.

The invention discloses a method for identifying the species of plants by using genes; it comprises the following steps: extracting the genome DNA of the plant sample to be tested; using the genome DNA of the plant sample to be tested as a template, using primers designed for the rbcL gene sequence and matK The primers designed for the gene sequence were amplified by PCR; the PCR amplified products were recovered to obtain the target DNA; the target DNA was sequenced using the Sanger dideoxy chain termination method; the sequencing results were compared with the sequences in the public database, according to Homology identifies the test plant to a genus or species. The present invention identifies the species of the plant from the molecular level, which is more accurate than the morphological identification; there is no too much requirement on the integrity of the plant form, as long as there is a little tissue of the plant itself, DNA can be extracted and identified by the present invention.

The invention relates to the technical field of agricultural detection, in particular to an online detection method for corn plant morphology. The method comprises the following steps: S1, forming a three-dimensional laser radar point cloud collection system through an industrial personal computer, a three-dimensional laser radar sensor and an agricultural robot moving platform, and obtaining point cloud information of corn plants; S2, filtering out redundant noisy points and ground point clouds in the point cloud information; S3, selecting a proper distance threshold value through tests, andrecognizing corn crop row point clouds; S4, performing planar projection on the identified corn crop row point cloud, and separating out the point cloud of the single corn plant; S5, performing morphological detection on the corn plant according to the independently extracted point cloud of the single corn plant. According to the method, noise information irrelevant to the corn plant can be quickly and effectively filtered out when the point cloud data is processed; the online detection function of corn plants is realized; high precision and high reliability of detection are realized; the method can be widely applied to the field of agricultural crop detection.

Provided are methods for increasing seed size and/or weight, embryo size and/or weight, and cotyledon size and/or weight. The methods comprise expression of a plant cytokinin oxydase.

The invention discloses a method for cultivating a transgenic gramineous plant with increased tiller number and a biological material related with the method. The method comprises the following steps: guiding a DNA (Deoxyribonucleic Acid) molecule PGH3-IPT into a receptor-gramineous plant to obtain the transgenic gramineous plant with increased tiller number, increased spike number and/or reduced plant height in comparison with the receptor-gramineous plant. Compared with the receptor-gramineous plant, the transgenic gramineous plant obtained by guiding the DNA molecule PGH3-IPT into the receptor-gramineous plant has the characteristics that malformation caused by excess change of plant morphology can not be caused when the effective tiller number and plant height of the transgenic gramineous plant are properly reduced; the spike number and grain weight of the transgenic gramineous plant are not remarkably changed, so that the yield of a single gramineous plant is increased; other morphology and growth and development characteristics of the plant are not remarkably changed.

The present invention relates to methods for stimulating root growth and/or enhancing the formation of lateral or adventitious roots and/or altering root geotropism comprising expression of a plant cytokinin oxidase or comprising expression of another protein that reduces the level of active cytokinins in plants or plant parts. Also provided by the present invention are methods for increasing seed size and/or weight, embryo size and/or weight, and cotyledon size and/or weight. The methods comprise expression of a plant cytokinin oxidase or expression of another protein that reduces the level of active cytokinins in plants or plant parts. The invention also relates to novel plant cytokinin oxidase proteins, nucleic acid sequences encoding cytokinin oxidase proteins as well as to vectors, host cells, transgenic cells and plants comprising said sequences. The invention also relates to the use of said sequences for improving root-related characteristics including increasing yield and/or enhancing early vigor and/or modifying root/shoot ratio and/or improving resistance to lodging and/or increasing drought tolerance and/or promoting in vitro propagation of explants and/or modifying cell fate and/or plant development and/or plant morphology and/or plant biochemistry and/or plant physiology. The invention also relates to the use of said sequences in the above-mentioned methods. The invention also relates to methods for identifying and obtaining proteins and compounds interacting with cytokinin oxidase proteins. The invention also relates to the use of said compounds as a plant growth regulator or herbicide.

The invention discloses breeding method and application of a middle indica-tendency type rice semi-dwarf photosensitive sterile line Y98149IS. The breeding method comprises the following steps of: artificially hybridizing the japonica type rice semi-dwarf photosensitive sterile line Y98149S carrying a rice dominant semi-dwarf mutant gene and a photosensitive nuclear male sterile gene as a female parent with an indica type rice advanced line 01E1-188 carrying a rice dominant semi-dwarf mutant gene, strictly choosing male sterility and indica and japonica parting characters of plant individuals in segregation populations in genetic segregation generations to successively breed the middle indica-tendency type rice semi-dwarf photosensitive sterile line Y98149IS. The invention also discloses an application of preparing a hybrid rice combination to rice production by using the bred Y98149IS as a female parent and the rice male sterile restoring line as a male parent. The bred Y98149IS can be applied to the breeding of a hybrid rice variety, the plant height of the bred hybrid rice variety can be effectively reduced, the plant morphology is improved, and the lodging resistance, the yield stability and the like of the bred hybrid rice combination are further increased.

The invention is applicable to the technical field of illumination devices, and provides a plant growth lamp comprising a casing and a light source plate disposed in the casing. The light source plateincludes a plurality of quasi-natural light LED light sources, and each quasi-natural light LED light source emits quasi-natural light. In the quasi-natural light, the relative spectral power of redlight is greater than 0.60, the relative spectral power of cyan light is greater than 0.30, the relative spectral power of blue light is less than 0.75, the ratio B/R of the optical radiation power ofthe blue light to the red light is 0.15-0.43, and the ratio R/FR of the optical radiation power of the red light R with the wavelength of 650-670 nm to the red light with the wavelength of 720-740 nmis 4 to 12. According to the plant growth lamp, the quasi-natural light LED light sources are used to illuminate plants, the illumination spectrum is complete, a humanized working environment is provided, which is favorable for operation of workers in a planting environment; by the optimization of the ratio of the optical radiation power of the blue light to the red light, and the optimization ofthe ratio of optical radiation power of the red light with the wavelength of 650-670 nm to the red light with the wavelength of 720-740 nm, a plant morphology is controlled, and the development of plant comprehensive nutrition is promoted.

The invention discloses a simple method for evaluating the heat resistance of wheat. The method comprises the steps of carrying out field planting, building a shed for performing high temperature treatment, observing and recording plant morphology, determining a normalized difference vegetation index, evaluating heat resistance, and the like. After the high temperature treatment is finished, if the decrease of the normalized difference vegetation index is significant, the heat resistance is proved to be poor; after the high temperature treatment is finished, if the decrease of the normalized difference vegetation index is not significant, the heat resistance is proved to be good. The method utilizes the normalized difference vegetation index as a heat resistance index, and provides a theoretical basis for a wheat stress-resistant and stable-yield cultivation technique and wheat variety breeding.

The present invention relates to methods for stimulating root growth and/or enhancing the formation of lateral or adventitious roots and/or altering root geotropism comprising expression of a cytokinin oxidase or comprising expression of another protein that reduces the level of active cytokinins in plants or plant parts. Also provided by the present invention are methods for increasing seed size and/or weight, embryo size and/or weight, and cotyledon size and/or weight. The methods comprise expression of a cytokinin oxidase or expression of another protein that reduces the level of active cytokinins in plants or plant parts. Methods and compositions for increasing seed yield are also provided. The invention also relates to isolated plant cytokinin oxidase proteins, nucleic acid sequences encoding cytokinin oxidase proteins as well as to vectors, host cells, transgenic cells and plants comprising such sequences. The use of these sequences for improving root-related characteristics including increasing yield and/or enhancing early vigor and/or modifying root/shoot ratio and/or improving resistance to lodging and/or increasing drought tolerance and/or promoting in vitro propagation of explants and/or modifying cell fate and/or plant development and/or plant morphology and/or plant biochemistry and/or plant physiology, is also provided. The invention also relates to methods for identifying and obtaining proteins and compounds interacting with cytokinin oxidase proteins as well as the use of such proteins and/or compounds as plant growth regulators or herbicides.

The invention provides a construction method of a human-accompanied plant information base and system thereof. The method comprises the following steps: surveying and sampling: acquiring human-accompanied plant samples in a certain region range; manufacturing human-accompanied plant information: collating the human-accompanied plant samples acquired in the step one to manufacture a human-accompanied plant list, classifying according to different categories, and describing basic features; establishing a human-accompanied plant morphology document electronic information using a plant morphology base as the basis to establish the human-accompanied plant morphology document electronic information base. The method provided by the invention has the advantages as follows: the blanks that the domestic criminal detection plant information is less, the feature record is imperfect and the informatization query system has not been established at present are filled, and the method will be of great importance in the detection of the criminal cases.

The invention relates to the technical field of plant mutation breeding, and concretely relates to a cucumber breeding method based on an induced polyploid and an identification method of polyploid plants. The cucumber breeding method comprises the steps of breeding germinated cucumber seeds into seedlings, carrying out induction treatment on growing points of the seedlings by using 0.25 to 0.32 percent of colchicine solution, wherein the treatment is carried out for 4 to 6 times; then carrying out plant morphology identification, stoma identification, flow cytometry identification and cytology identification on a diploid and variant plants. According to the method, a cucumber polyploidy new strain suitable for production and application can be effectively bred, so that the economic benefit is improved.

The invention discloses application of a clematis terniflora isopentenyl transferase PT1 gene, an overexpressed arabidopsis strain thereof and a construction method of the overexpressed arabidopsis strain. The nucleotide sequence of the clematis terniflora isopentenyl transferase PT1 gene is as shown in SEQ ID NO. 1. A model plant arabidopsis thaliana is adopted, and a positive strain of arabidopsis thaliana trans-PT1 gene is obtained by constructing a plant PT1 gene overexpression vector and transgenosis operation. The invention proves that the plant morphology of the transgenic arabidopsis thaliana strain has the characteristics of multiple glandular hair on the leaf surface and dark leaf color. After ultraviolet stress, the O2 <-> generation rate and H2O2 content increase in the transgenic arabidopsis thaliana leaves are remarkably lower than those of wild arabidopsis thaliana, the MDA content increase in the leaves is remarkably lower than those of the wild arabidopsis thaliana leaves, and the leaf conductivity increase is remarkably lower than that of the wild arabidopsis thaliana leaves. After extreme ultraviolet stress, the survival rate of the transgenic arabidopsis thaliana is remarkably higher than that of wild arabidopsis thaliana.

The present invention relates to novel plant type D cyclins, nucleic acid sequences encoding novel plant type D cyclins as well as to vectors, host cells, transonic cells and plants comprising said sequences. The invention also relates to methods for modifying cell fate and/or plant development and/or plant morphology and/or plant biochemistry and/or plant physiology comprising modifying the expression of plant type D cyclins or comprising the use of nucleic acid sequences encoding novel plant type D cyclins. The inventions also relates to methods for obtaining enhanced growth, and/or increased yield and/or delayed senescence of a plant cell, tissue and/or organ and/or increased frequence of formation of lateral organs in a plant, comprising the ectopic expression of a plant type D-cyclin. The invention also relates to methods for identifying and obtaining compounds interacting with plant type D cyclins. The invention also relates to the use of said compounds as a plant growth regulator or herbicide.