42results about How to "Improve pollination" patented technology

The invention provides an anther-stirring, pollen-collecting and hybrid pollination method of tobacco by using an artificial pollination pin. The method comprises specific steps that: during 8:00am to 10:00am or 4:00pm to 6:00pm, flowers of tobacco plants in post pollen tube growth periods are cut off and stored; flowers in blooming periods or blossom periods are selected as female parent flowers; during 8:00am to 9:00am or 5:00pm to 6:00pm on a sunny day, anther-stirring, pollen-collecting and hybrid pollination are carried out by using a pollination pin. According to the invention, male parent stamens and female parent pistils are in periods with optimal activities and affinities, such that pollination effect and seed quality are effectively improved; pollens in two pollen sacs of one anther are respectively used for pollinating two female parent flowers, and five anthers of a male parent flower can be used for pollinating 6 to 10 female parent flowers, such that a large amount of male parent pollens are saved, and the plantation amount of male parent tobacco is reduced; the pollination device is easy to manufacture and convenient to use, and the pollination method is simple, such that the seed yield is greatly improved, and the comprehensive cost of seed production is reduced. Therefore, the method is suitable to be applied in tobacco hybridization scientific experiments and tobacco large-area hybrid species propagation and production.

The invention discloses a rapid propagation method of radish breeding material. The method comprises the following steps: (S010), mesh enclosure setting up, namely respectively matching, assembling, connecting and fixing long rods, cross rods, vertical columns, three-way connecting rings and vertical column bases; (S020) radish parent material planting, namely respectively, sequentially and intensively planting male parent and female reproduced by parent of radish sterile line and radish hybridized combination according to a certain line number; (S030) radish flowering phase management, namely removing heteromorphic plant after transplanted radish plant survives, removing fertile plant and keeping sterile plant for a sterile line from radish bolting to an initial flowering phase, keeping completely fertile plant with typical shapes and normal floral organs for maintainer line and male parent line, and applying insecticide for one time 7 to 10 days before osmia is released; (S040) osmia release and management, namely putting osmia into a mesh enclosure in the initial flower stage of radish, ensuring that osmia performs open pollination, and recycling and storing the osmia after pollination; and (S050) seed harvesting. The method is simple to operate and low in cost, and can obviously improve the seed output.

The present invention relates to novel watermelon plants displaying an increased number of male flowers. The present invention also relates to seeds and parts of said plants, for example fruits. The present invention further relates to methods of making and using such seeds and plants. The present invention also relates to novel genetic determinants associated with an increased number of male flowers and to molecular markers linked to said novel genetic determinants.

The invention belongs to the technical field of hybridization breeding and in particular relates to a prunus salicina hybridization breeding method. The method provided by the invention is realized through the following steps: (1) during a revealing period, selecting female parent trees to be hybridized, wherein 2 to 3 plants of each variety are selected; erecting a shed frame capable of completely covering the female parent trees at the peripheries of tree crowns; (2) covering the shed frame with a shed cover and compacting the lower part with soil; (3) shearing flowering branches in a flowering period from male parent trees and inserting the flowering branches into a bottle filled with water; hanging the flowering branches to the upper parts of inner parts of the tree crowns of the female parent trees respectively; (4) putting one box of bees into the shed 3 days before flowering, and pollinating. The method provided by the invention is simple to operate and can be finished without a pollination tool, so that the method is suitable for large-batch hybridization; the pollination success rate is high and the hybridization success rate is high.

The present invention discloses a three-dimensional wind field measurement system applicable to an unmanned aerial vehicle and a use method of the three-dimensional wind field measurement system. The three-dimensional wind field measurement system comprises a data acquisition device and a control system; the data acquisition device comprises a plurality of wind speed measuring devices and a wind speed acquisition support; each wind speed measuring device includes wind speed sensors and a wind speed sensor fixing mechanism; the wind speed acquisition support includes a base main body, upright columns and a top cover; the base main body includes an upper-layer base and a lower-layer base; the top surface of the upper-layer base is provided with the plurality of upright columns which are distributed circumferentially; the upright columns are provided with the wind speed measuring devices; the lower-layer base is provided with a rotation driving device for driving the upper-layer base to rotate; and the top surface of the upper-layer base and the bottom surface of the top cover are both provided with the wind speed measuring devices. With the three-dimensional wind field measurement system of the invention adopted, the measurement of a three-dimensional space wind field at a specific area around the unmanned aerial vehicle can be realized. The three-dimensional wind field measurement system has the advantages of simple structure, convenient operation, easiness in arrangement and high applicability.