Pneumatic pollination device and method for hybrid rice seed production with large ration of male and female parents

Abstract

The invention discloses a pneumatic pollination device and method for hybrid rice seed production with large ration of male and female parents. The device comprises a pneumatic pollination component,a controller, a lifting adjusting component and a four-wheel power chassis, wherein the pneumatic pollination component is mounted at the front part of the four-wheel power chassis 1 through the lifting adjusting component; and the controller is mounted at the upper part of the four-wheel power chassis. According to the pneumatic pollination device and method, air flows of pollination pipes respectively act on spike parts of male parent rows of corresponding hybrid rice, so that male parent pollen is separated from stamens and floats towards female parent compartments; the air flow speeds of the pollination pipes of the male parent rows are different, so that the pollen is conveyed to a main female parent acting region and directional floating and uniform pollination of the pollen are realized; and a working device is provided for mechanical and efficient pollination of hybrid rice seed production.

Description

technical field [0001] The invention relates to a field mechanized pollination device for hybrid rice seed production, in particular to a pneumatic pollination device and method suitable for large-scale seed production and planting with a large row ratio of parents. Background technique [0002] Hybrid rice seeds are the material basis for hybrid rice production, but rice is a self-pollinated plant, and the natural hybridization rate in the natural environment is generally only 0.2% to 0.3%. To maintain the hybrid advantage of the seeds, at present, only by means of "manual operation" "Pollination to ensure sufficient and uniform pollination, increase the rate of outcrossing seed setting, and improve the yield and quality of seed production. The flowering period of rice pollen is only 7-10 days, and the flowering time is only about 2-4 hours a day, so pollination must be completed within a limited time. [0003] At present, there is no applicable pollination machinery and e...

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Problems solved by technology

[0004] The present invention aims to solve the problem of lack of mechanized pollination equipment in the current hybrid rice seed production, meet the needs of large-scale large-scale seed production, and provide a large-row ratio hybrid rice seed production pneumatic pollination device, through which each pollinator acts on different females. In this area, to achieve directional, uniform and efficient pollination

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