223 results about "Fruit maturation" patented technology

The invention provides an application of a PavERF110 gene in regulating and controlling the ripening direction of sweet cherry fruits, and belongs to the technical field of molecular breeding. The nucleotide sequence of the PavERF110 gene is as shown in SEQ ID NO.1, and the amino acid sequence of the encoded protein of the PavERF110 gene is as shown in SEQ ID NO.2. The invention also provides an overexpression vector and a VIGS gene silencing vector constructed by the gene, a construction method of the overexpression vector and the VIGS gene silencing vector, and a recombinant microorganism containing the vectors. Engineering bacteria containing related carriers are injected and infected at the equator of the fruits 25 days after the sweet cherries blossom, and it is found that overexpression of the PavERF110 gene can accelerate fruit coloring and increase the expression level of the mature related genes. New technical support and theoretical basis are provided for sweet cherry fruit quality improvement and ripening regulation, market requirements can be met, and meanwhile understanding of a fruit ripening transcription regulation mechanism is deepened.

The invention provides vision and touch integrated sensing equipment for fruit maturity analysis and an analysis method. The system comprises a mechanical arm, a manipulator, a binocular camera, a PDMS film, 199UV stamp-pad ink, an ultraviolet lamp, a light source and a controller. A visual touch integrated sensing device is built; whether the maturity of the fruit is suitable for being judged through the color of the outer skin or not is judged through a fruit recognition and positioning module, and three-dimensional space positioning is conducted on the fruit; if yes, the controller executes a visual detection method; on the contrary, the PDMS film is adopted to simulate the human palm, the ultraviolet lamp is turned on, the invisible speckles on the film are shown, the binocular camera replaces the human eyes, the controller controls the mechanical arm to press the fruits on the film, the displacement process of the speckles on the surface of the film is recorded, and the digital image related technology is utilized. Tactile information sensed by a palm is shown through displacement of random speckles, finally maturity classification of fruits such as tomatoes is achieved, the structure is simple and compact, work is stable, and the classification accuracy is high.

The invention discloses a lightweight fruit maturity detection method and system suitable for embedded equipment, and the method comprises the steps: collecting a multi-scene fruit plantation video, and obtaining a plurality of fruit images and a crop fruit image data set; the method comprises the following steps: performing improvement based on a YOLOv81 model, taking a CSPGhostNet network as a backbone network, taking a feature fusion network PANet as a neck network, and setting a classifier and a regression device as a head network so as to establish a fruit detection model; taking the fruit image data set as input, performing multi-layer network channel pruning on the fruit detection model based on a model pruning method, and obtaining a compressed fruit detection model; performing fine tuning training on the fruit detection model and the compressed fruit detection model by using a knowledge distillation method to obtain a lightweight fruit detection model; and detecting the fruit maturity by using the light-weight fruit detection model. According to the invention, rapid and accurate detection of fruit maturity can be realized.

The invention belongs to the technical field of plant biology, and discloses application of FvNAC073 in regulation and control of strawberry fruit ripening or fruit size. The invention finds that FvNAC073 has an important biological function in strawberry ripening or fruit size, after the FvNAC073 is knocked out, the anthocyanin content in strawberry fruits is reduced, the fruit softening is delayed, the abscisic acid content in the fruits is reduced, the longitudinal and transverse diameters of the fruits are reduced, and the weight of a single fruit is reduced; after the FvNAC073 is over-expressed, the content of anthocyanin in strawberry fruits is increased, the fruits are softened in advance, the content of abscisic acid in the fruits is increased, the longitudinal and transverse diameters of the fruits are increased, and the weight of a single fruit is increased, so that a new gene resource can be provided for molecular breeding for researching the sizes of the strawberry fruits and ripening of the strawberries.

The invention discloses a trichosanthes kirilowii Maxim fruit maturity detecting and picking device based on machine vision, and relates to the technical field of agricultural picking, the trichosanthes kirilowii Maxim fruit maturity detecting and picking device comprises a support, a rotating seat is fixedly arranged at the bottom of the support, a multi-axis mechanical arm is fixedly arranged at the top end of the rotating seat, and a vine cutting box is fixedly arranged at one end of the multi-axis mechanical arm; the device comprises a vine shearing box, scissors are arranged in the vine shearing box, a picking basket is arranged below the scissors, two rotating rods are symmetrically and rotationally arranged on the two sides of the picking basket, an arc-shaped plate is fixedly arranged between the two corresponding rotating rods, gears are fixedly arranged on the surfaces of the rotating rods, and an adjusting assembly for adjusting the rotating rods is arranged between the two gears. The snakegourd fruit picking device has the beneficial effects that snakegourd fruits can be rapidly and accurately placed in the collecting frame, efficient and smooth transfer from picking to collecting of the snakegourd fruits is achieved, the overall picking progress is remarkably accelerated, the time cost is greatly saved, and the picking efficiency is improved.

The invention discloses a block chain-based grapefruit planting management method and system, and the method comprises the steps: collecting environment data through a multi-source sensor disposed in a planting region, collecting grapefruit plant growth image data through an unmanned plane, encrypting and uploading the data to a block chain for storage; extracting features of the image by using a convolutional neural network model, and dividing grapefruit growth stages; calling an Apriori algorithm to mine association rules according to the growth stage to establish an experience library; calculating the deviation degree between the grapefruit growth state indexes and the rules in the experience library according to the real-time data, and determining a compensation scheme; the intelligent contract receives the compensation scheme to trigger equipment to execute planting operation and record information; and after the fruits are ripe, performing quantitative grading on the grapefruit fruits, and generating a quality coefficient and a block chain traceability two-dimensional code. According to the invention, intelligence and traceability of grapefruit planting can be realized, and linkage of staged accurate regulation and control and quality grading and traceability is realized, so that the utilization efficiency of planting resources is improved, the quality safety of products is ensured, and the credibility of consumers is enhanced.

The invention discloses an application of a tomato B3-337 transcription factor in improvement of tomato quality, a gene for coding a B3-337 transcription factor protein is named as a B3-337 gene, and the nucleotide sequence is shown as SEQ ID NO.1. The invention also discloses an application of the tomato B3-337 transcription factor in improvement of tomato quality. According to the application, a carrier pFM3100GFP-B3-337 is constructed, so that the B3-337 is proved to be positioned in a cell nucleus. A transcriptional activity detection result proves that B3-337 has transcriptional activation activity. RT-qPCR (real-time quantitative polymerase chain reaction) and GUS (glucuronidase) dyeing show that the transcription factor is expressed in pericarp, seed, placenta and center pillar of each fruit ripening stage. According to the invention, a B3-337 gene overexpression plant is obtained by constructing a B3-337 overexpression vector, and compared with a wild type, the tomato fruit overexpressed with the B3-337 gene has the advantages that the content of soluble solids brix is increased, the fruit becomes larger, and the weight becomes heavier. It is shown that the B3-337 transcription factor plays an important regulation role in positive regulation of tomato fruit quality. The invention lays a good gene genetic resource foundation for the cultivation of new varieties of high-quality tomatoes.

The invention relates to the technical field of grape planting, in particular to a grape nutrition regulation-based early-maturing high-quality light and simplified production method, which comprises the following steps of: regulating nutrition distribution in a germination period, and taking moisture-preserving and rain-sheltering measures on the ground and branches; regulating and controlling nutrient distribution in the flowering period to control branch growth, and ensuring the fruit setting rate based on pinching measures; management is conducted in the fruit expanding period, on the basis of vigorous growth control combined with high photosynthetic management, the photosynthetic efficiency of leaves is ensured, soil and leaf fertilization are adjusted, and it is ensured that nutrient supply meets the fruit expanding requirement; nutrition in the color changing period is regulated and controlled, fruit color changing is promoted based on trunk girdling, specific fertilizer is sprayed to leaf surfaces, and it is ensured that the fruit ripening and color changing process is accelerated; management is conducted in the acid-removing and sugar-increasing period, and the fruit acidity is gradually reduced based on regulation and control of nutrient distribution and fertilization measures. According to the method, the efficiency of early-maturing, high-quality and light-weight production of grapes is improved.

The invention discloses an orchard crawler differential robot trajectory tracking method based on adaptive incremental control, and relates to the technical field of agricultural robot control. The method comprises the following steps: receiving environmental data collected by a robot sensor, constructing a probability grid map of an orchard environment according to the environmental data, and aligning the probability grid map with a pre-constructed map inertial coordinate system; the course angle error and the distance error between the current position and a target point are calculated based on the pose of the robot, an error vector is formed, and the target point is dynamically planned according to the fruit maturity and reachability priority detected by a visual system and a laser radar point cloud. According to the method, coordinate transformation is not needed, and different from traditional tracking control, a control instruction is generated directly based on pose increment, the course and distance error of a target point is calculated directly based on an inertial coordinate system, and real-time matrix projection operation is avoided.

The invention discloses a preparation method of a konjac glucomannan-based coating film. The preparation method comprises the following steps: (1) preparing materials: 4 parts of konjac glucomannan, 3-4 parts of chitosan, 2-3 parts of high-ester pectin, 0.5-0.6 part of calcium carbonate and 0.8-1.1 parts of glycerol; (2) chitosan is dissolved in a 1% organic acid solution, then konjac glucomannan and high-ester pectin are added and stirred evenly to form a mixed solution, and the mass fraction of solute in the mixed solution is 2-3%; and (3) carrying out modification treatment on the mixed solution, then adding glycerol and calcium carbonate, and uniformly stirring to obtain the film coating solution. The coating film is not easy to dissolve, has excellent mechanical properties, and can keep fruits fresh by inhibiting ethylene synthesis, maintaining mango quality, delaying fruit ripening and maintaining fragrance release.

The utility model belongs to the technical field of fruit tree cultivation, and relates to a fruit tree cultivation root limiting and water controlling device which comprises a root limiting container with a closed bottom end and an open top end. A plurality of layers of drain hole groups are formed in the side wall of the root limiting container, and each layer of drain hole group comprises a plurality of drain holes; the top of the root limiting container is provided with a waterproof cover plate formed by splicing two sub cover plates in bilateral symmetry, and the center of the waterproof cover plate is provided with a planting hole for red pomelo trees to grow. Red pomelo trees are planted in the root limiting container, growth of root systems of the fruit trees can be effectively limited, water control is facilitated when the root limiting and water controlling device is used for cultivating the fruit trees, the sugar degree of the fruits can be improved by controlling water absorption in the mature period of the red pomelo fruits, the quality and benefits of the red pomelo are improved, the root limiting container is good in water retention and moisture preservation effect, and the drought resistance of the red pomelo trees can be improved; sufficient water supply is ensured in the rapid expansion period of the red pomelo fruits, so that the red pomelo fruit cysts are uniform, and internal cracks are reduced.

The invention relates to the field of agricultural equipment, and discloses a pepper picking roller and a picking method. The device comprises a rotating roller, an elastic shifting piece array, a transmission mechanism, an image recognition module and a cutting assembly, wherein unique arc-shaped silica gel shifting pieces are distributed on the surface of the rotating roller; the transmission mechanism comprises a variable frequency motor and a planetary gear set; the image recognition module integrates a depth camera and a near infrared spectrum detection unit. The picking method comprises the following steps: aligning the axis of a roller with the growth direction of peppers, and adjusting the rotating speed of the roller according to the fruit maturity; the elastic shifting piece flexibly shifts the pepper fruits, and the cutting assembly is synchronously driven to cut off fruit stems. According to the self-adaptive fruit picking device, the technical bottlenecks that a traditional picking device is poor in fruit shape adaptability and mechanical damage is prone to being generated in the separation process are broken through through combination of rotary poking and self-adaptive parameter adjustment, the damage rate is lower than 2%, the harvesting success rate is increased to 95% or above, and the working efficiency is improved by 4-6 times compared with manual work; the harvester is suitable for continuous harvesting operation in a high-density planting scene.

The invention discloses application of PpSAMS protein and related biological materials thereof in regulating and controlling ripening and softening of plant fruits. According to the invention, overexpression of the PpSAMS gene in tomato shows that the overexpression of the PpSAMS gene can promote maturation of tomato fruits; the overexpression of the PpSAMS gene in the apple callus shows that the overexpression of the PpSAMS gene can up-regulate the activity of cell wall modification related enzymes of the apple callus, regulate the expression level of cell wall metabolism related genes and promote the depolymerization of cell wall pectin and the hydrolysis of cellulose; the overexpression of the PpSAMS gene in the peach fruit discovers that the overexpression of the PpSAMS gene is unfavorable for maintaining the storage quality of the peach fruit during the normal-temperature / low-temperature storage period after the peach fruit is picked, but the silent PpSAMS gene is contrary to the normal-temperature / low-temperature storage period after the peach fruit is picked. The results show that the PpSAMS protein can regulate and control the ripening and softening of the plant fruits, and a foundation is laid for the research of improving the storage quality of the plant fruits.

The invention discloses an application of a transcription factor CaNAC2 in regulation and control of pepper fruit maturity. The invention relates to the technical field of plant genetic engineering, and provides any one of the following applications of CaNAC2 protein: regulating and controlling ripening of plant fruits; the carotenoid content in the plant fruits is regulated and controlled; the CaNAC2 protein is a protein of which the amino acid sequence is SEQ ID NO: 1. A target fragment of the CaNAC2 gene is amplified in the pepper, a VIGS vector is constructed, and it is found that inhibition of expression of the CaNAC2 gene can regulate the content of carotenoid in pepper fruits and delay fruit maturity, so that the shelf life of the pepper is prolonged. Therefore, the CaNAC2 gene plays an important role in metabolism of capsicum carotenoid, and has important significance on appearance and market value of fruits.

The invention relates to a watermelon sweetening cultivation method. The watermelon sweetening cultivation method comprises the following steps: S1, applying a thoroughly decomposed organic fertilizer and a potassium-magnesium compound fertilizer which are uniformly mixed into soil as a base fertilizer before planting; s2, atomizing and spraying sweeteners to leaf surfaces and flowers of the watermelons in flowering and fruit setting periods; s3, a sweetener is sprayed to leaf surfaces from a watermelon fruit swelling period to a watermelon fruit maturation period, a nursing blender is sprayed to the surfaces of the watermelon fruits, and a nursing blender is sprayed to the surfaces of the watermelon fruits; the nursing blender is prepared from the following raw materials in parts by weight: 5 to 16 parts of beewax, 2 to 7 parts of porous calcium particles, 1 to 3 parts of seaweed extract, 0.5 to 3 parts of fructo-oligosaccharide, 0.5 to 1.5 parts of glycerol, 0.8 to 1.5 parts of span-80 and 70 to 90 parts of distilled water. The problem of how to reduce the poor sweetness from the center of the watermelon to the surface layer of the watermelon can be solved, the overall sweetness of the watermelon can be improved, and the watermelon explosion rate can be reduced.

The utility model provides a double-layer mulching film suitable for citrus growth, which comprises an upper-layer film and a lower-layer film, the upper-layer film is the upper-layer film, the lower-layer film is the lower-layer film, the upper-layer film and the lower-layer film are overlapped up and down, and the edge of the upper-layer film and the edge of the lower-layer film are detachably adhered together. The upper-layer film and the lower-layer film are detachably adhered together, during daily field operation, the upper-layer film and the lower-layer film are separated, the upper-layer film is rolled up, only the lower-layer film is used for covering, the upper-layer film is unfolded 2 months before ripening to reflect light so as to promote coloring and improve quality, and after fruits are ripe and picked, the double-layer film is rolled up to a planting row, so that the yield of the fruits is increased. The positive fertilizer is applied, and normal operation is not affected. The double-layer film disclosed by the utility model can meet the requirement of annual production of citrus, and achieves the functions of inhibiting weeds, reflecting light, preventing water, prolonging the service life of the double-layer film and the like.

The FaCP5L1 and FaCP5L3 genes and application thereof in regulating fruit ripening and postharvest quality belong to the field of agricultural biological genetic engineering technology. It is found for the first time that the cruciferin coding genes FaCP5L1 and FaCP5L3 can directly participate in the regulation of strawberry ripening and postharvest quality, including but not limited to the regulation of abscisic acid (ABA) content, ripening process, soluble solid content, hardness, color, anthocyanin content. The expression of FaCP5L1 and FaCP5L3 can promote the ripening of strawberry fruit and the formation of postharvest quality; the expression reduction can slow down the ripening of strawberry fruit and the formation of postharvest quality. Accordingly, the ripening of strawberry fruit and the postharvest quality traits can be regulated by reasonably utilizing the genes, and the ripening and postharvest quality related breeding can be guided. The present application provides a theoretical basis and technical support for regulating the ripening of strawberry fruit and the postharvest quality traits by using genetic engineering technology, and has important application value.

The invention discloses an olive fruit maturity detection method and system, and the method comprises the steps: firstly constructing a first standard model and a second standard model, then obtaining a comparison image and an actual hardness calculation parameter of a to-be-detected olive fruit, and calculating a color degree score of the olive fruit according to the comparison image and the first standard model, calculating a hardness score according to the actual hardness calculation parameter and a second standard model, and judging the maturity of the olive fruits according to the color score and the hardness score; olea europaea fruits correspond to different color changes and different hardness changes in different ripening stages, the surface layer changes of the fruits are reflected through the color changes, the internal changes of the fruits are reflected through the hardness of the fruits, the fruits are evaluated at the same time from the inside and the outside, and the evaluation accuracy is improved. Misjudgment caused by premature color change or abnormal change of the fruits can be effectively avoided, and the accuracy of maturity detection is improved; the determination of the fruit maturity can be standardized, and the dependence of the determination of the fruit maturity on manpower is reduced.

The invention provides an MaHDAC3 gene and application thereof in regulating and controlling fruit maturity, and belongs to the technical field of gene engineering. The nucleotide sequence of the MaHDAC3 gene is as shown in SEQ ID NO.1. The banana fruit MaHDAC3 gene is silenced by using a VIGS technology, and the result shows that the hardness, soluble sugar, ROS content and other fruit ripening and softening related physiological indexes of the fruit with the silenced banana MaHDAC3 gene are significantly changed, which indicates that the MaHDAC3 gene is a key gene influencing the ripening and softening of the sweet banana fruit, and the gene has a significant effect on the ripening and softening of the sweet banana fruit. The method can be applied to control of maturation or softening of banana fruits and cultivation of new banana varieties.

The invention belongs to the technical field of agricultural planting, and discloses an intelligent citrus planting and picking management system and method.In the citrus growing season, a data acquisition module acquires data in real time and transmits the data to a data analysis processing module, and after analysis, an intelligent decision module generates a fertilization instruction and an irrigation instruction; the execution control module controls the fertilization equipment and the irrigation equipment to perform periodic fertilization and irrigation, and the fertilization and irrigation period is determined according to the soil type, the local meteorological data and the citrus tree growth stage; when the data analysis processing module finds that citrus leaves have disease and pest symptoms through image recognition, the intelligent decision-making module recommends the corresponding prevention and control pesticide amount, the execution control module controls the disease and pest prevention and control equipment to perform pesticide application operation, and the camera continuously shoots fruit images near the picking season. And the data analysis processing module judges the fruit maturity through image analysis, and when the maturity is qualified, the picking robot is controlled to pick.

The invention discloses a crop fruit quality detection method and system based on a multi-modal large model. The method comprises the following steps: establishing the multi-modal large model for crop fruit quality detection based on an LISA structure; the method comprises the following steps: preprocessing an input crop fruit image by using an image preprocessing agent, and then inputting the preprocessed crop fruit image into a semantic segmentation agent to extract a fruit region; inputting the crop fruit image subjected to semantic segmentation into a semantic segmentation review agent, reviewing semantic segmentation by comparing the features of the actual crop fruit with the extracted fruit region, if the review result is that the fruit is the fruit, inputting the fruit into a quality detection agent, otherwise, carrying out semantic segmentation again; and the quality detection agent detects the quality of the fruit area and outputs a detection result and natural language description of a detection basis. According to the method, the accuracy and efficiency of fruit maturity evaluation can be improved, meanwhile, clear natural language description is generated, and the understandability of an output result is enhanced.

The invention discloses application of an apple MdLHY transcription factor in regulation and control of fruit ripening, and the regulation and control are shown as follows: under an illumination condition, the MdLHY transcription factor is activated, the ethylene generation amount is reduced, and the fruit ripening is delayed, while after the MdLHY gene is silenced, the ethylene synthesis is increased, and the fruit ripening is accelerated. The invention proves the function of the apple MdLHY gene in ethylene biosynthesis in the process of regulating and controlling apple fruit maturation for the first time. Researches show that the MdLHY gene is a negative regulation factor for apple fruit ethylene synthesis, and a new thought is provided for molecular research for delaying apple fruit maturity.

This invention relates to an optimized method for single-fruit harvesting in orchards based on multimodal data fusion. It involves simultaneously acquiring image information of the fruit, local environmental data, and tree physiological indicators using multimodal sensors, and preprocessing these data. Taking into account the heterogeneous nature of different modalities, independent feature extraction networks are used to obtain deep features for each modality, constructing a heterogeneous modal deep fusion network. A cross-domain attention mechanism dynamically integrates these features, effectively capturing the complex correlations affecting fruit maturity and generating fused features. Based on these features, the model can predict the real-time maturity of individual fruits. Combining external conditions, a multi-objective optimization algorithm is used to calculate the harvesting priority score for each fruit, generating an executable harvesting sequence to guide robots or manual harvesting in an orderly manner. This invention significantly improves the accuracy of maturity prediction and the overall efficiency of harvesting operations, providing effective support for refined management and intelligent operation in orchards.

The invention provides application of FveABI4 in regulating and controlling the size of forest strawberry fruits, and belongs to the technical field of genetic engineering. Researches find that overexpression of FveABI4 can increase the size of fruits, promote the ripening process of the fruits, improve accumulation of soluble sugar in the fruits and reduce the content of citric acid in the fruits; and the reverse effect can be achieved by knocking down or knocking out the FveABI4. Therefore, the fruit size is regulated and controlled by intervening the expression of the FveABI4, and the ripening process and the sugar acidity of the fruits can be controlled at the same time, so that the problems that the inherent fruits of the forest strawberries are small and the separation of excellent characters of traditional breeding is serious can be ideally solved, and the application potential of the forest strawberries in the aspects of edible characters, processing characters, ornamental characters and the like is fully released.

The invention relates to the technical field of plant molecular biology, in particular to an SNP (Single Nucleotide Polymorphism) molecular marker related to a pitted surface of pepper and application. The SNP molecular marker can stably and accurately distinguish pitted surface (G / G), smooth surface (C / C) and heterozygous (G / C) genotypes of capsicum fruits, the marker typing and phenotype consistency is high, the accuracy rate reaches 90% or above, and the SNP molecular marker is remarkably superior to an existing phenotype-dependent observation method. Moreover, the SNP molecular marker can be used for identifying the pitted surface character of the fruit in the early stage of the plant, so that character judgment after fruit ripening is avoided, the breeding period can be effectively shortened, and the breeding efficiency can be improved. The SNP molecular marker can be directly applied to molecular breeding of pepper pitted surface characters, can provide reliable technical support for breeding of high-quality varieties, and has high practical value and popularization and application prospects.

The application discloses a kind of stachys seed direct sowing cultivation methods, belong to stachys cultivation technical field, the cultivation method is as follows: (1) selection: when fruit ripens, seed is collected, removes fruit pod, and seed and oil body are separated and collected for future use;(2) seed pretreatment: the stachys seed collected is pretreated to obtain germinated seed;(3) planting site treatment: after the mixed fertilizer is evenly applied to the surface of planting site, it is watered, penetrates 8-12 days, and is ploughed after overall and is ridged;(4) sowing: germinated seed is sown in the treated planting site by direct sowing method.The application adopts the method of direct sowing cultivation, avoids the damage to seedling caused by transplanting process when stachys is planted, solves the problem of low germination rate of stachys seed by sowing after treating stachys seed, and improves the yield and quality of stachys.

The invention belongs to the technical field of plant molecular breeding, and particularly relates to a molecular marker probe combination for auxiliary selection of characters in an apple fruit maturation period and application of the molecular marker probe combination. The probe combination comprises eight probes for auxiliary selection of characters in the mature period of the apple fruits; the nucleotide sequences of the eight probes for auxiliary selection of the characters of the apple fruits in the mature period are sequentially shown as SEQ ID NO.9 to SEQ ID NO.16. The DNA probe combination corresponding to the SNP marker combination provided by the invention can be applied to molecular marker-assisted selection of mature characters of apples in the seedling stage of apple filial generations.

The present application provides a kind of planting method of reducing allelochemicals and improving polysaccharide content of Rhizoma Polygonati, belongs to plant cultivation technical field.The planting method is planted in acidic sandy loam soil, and "biochar C" is applied to the soil 1-2 times in September-October of the second and third years, and the fruits mature, the stems are laid down after the third year, and then it can be harvested."Biochar C" is a modified, loaded with salicylic acid and UDP-D-galactose biochar.The present application not only helps to improve the physicochemical properties and bacterial community diversity of Rhizoma Polygonati planting soil, thereby reducing the allelochemicals content of Rhizoma Polygonati rhizome, but also can improve the polysaccharide content of rhizome, which helps to improve the quality of Rhizoma Polygonati and enhance its efficacy.

The invention discloses a method for advancing the fruit maturation period of snowflake pears, and relates to the technical field of fruit and vegetable planting. According to the method, 15 days before fruit harvesting, a fruit ripening promoting agent is sprayed to fruit trees; the fruit maturation promoting agent is any one of 200 [mu] mol / L melatonin, 100 [mu] mol / L jasmonic acid or a mixture of 200 [mu] mol / L melatonin and 100 [mu] mol / L jasmonic acid. According to the method, the arbutin content and the soluble solid content in the early-harvested snowflake pear fruits can be increased, the hardness and the titratable acid content are reduced, and the change of the indexes is synthesized to powerfully prove that the snowflake pears are matured in advance.

The invention discloses an application of histidine (His) in promoting maturation start and quality formation of tomato fruits. The method comprises the following steps: irrigating tomato plants with an aqueous solution containing His, or injecting picked immature fruits with an MES buffer solution containing His to promote fruit maturation starting and turning red. Experimental results show that when tomato plants or tomato fruits in the in-vitro immature stage are treated with the His aqueous solution or the MES buffer solution with the specific concentration, tomato fruit maturation starting, coloring and softening can be promoted; according to the present invention, the tomato plants are subjected to His treatment, and the tomato plants are treated by using the 3-(2-Thienyl)-L-alanine (TIH) activating agent of the ATP-PRT biosynthesis pathway rate-limiting enzyme (ATP-PRT) and the adenosine triphosphate (ATP) substrate of the ATP-PRT so as to promote the maturation, the color turning and the softening of the fruits; his treatment and ATP treatment of the ATP-PRT substrate can promote in-vitro immature-stage tomato fruit maturation starting, reddening and seed maturation, and the effect of His can be significantly inhibited by an ethylene receptor inhibitor 1-MCP, which indicates that His can promote conversion of ethylene synthesis of immature-stage tomato fruits from a system I to a system II, and plays a role depending on an ethylene signal pathway.