Hand-held pneumatic hybrid rice seed production pollination machine and pollination method thereof

Abstract

The present invention discloses a hand-held pneumatic hybrid rice seed production pollination machine and a pollination method thereof. The pollination machine comprises a hand-held power chassis, a lifting assembly, a pneumatic pollination assembly and a control assembly, wherein an air flow speed of each air blowing pipe and a relative position of the air blowing pipe and an ear part of a male parent are respectively adjusted through the control assembly and the lifting assembly, the pneumatic pollination assembly is provided with a plurality of air blowing pipes with the number 1 row less than the number of relatively large-row-ratio hybrid rice seed production male parents, each air blowing pipe is positioned between the two corresponding rows of the male parents during pollination, pollens are blown off from stamens to be conveyed to female parents through directional, uniform and constant-speed air flow at air blowing openings in front of the air blowing pipes, and the air flow speed of each air blowing pipe is different, so that the pollens are conveyed to a specific female parent region, efficient and uniform pollination is realized during large-row-ratio seed production, and the whole machine is compact in structure and satisfies current hybrid rice large-scale large-row-ratio seed production mechanical pollination requirements.

Description

technical field [0001] The invention relates to a hand-held pneumatic pollination machine for hybrid rice seed production, in particular to a pneumatic pollination device and method for large-scale seed production and planting with a large row ratio of parents. Background technique [0002] China is the birthplace of hybrid rice and the main production area of ​​hybrid rice. In 2017, the national hybrid rice seed production area was about 160,000 hectares, with an annual seed production of more than 280 million kilograms. Seed production has achieved scale. However, pollination is an operation with strong technical requirements, high precision requirements and tight time requirements. The flowering period of rice pollen is short, and the full flowering period is only 7 to 10 days. Generally, the flowering time is only 1.5 to 2 hours in a day, and the pollination must be completed within a limited time. Artificial assisted pollination includes manpower and mechanical pollina...

AI Technical Summary

Problems solved by technology

[0003] The invention aims to solve the problem of lack of mechanized pollination equipment for hybrid rice seed production at present, and to meet the needs of large-scale large-row ratio seed production, and provides a hand-held pneumatic hybrid rice seed production pollinator, which can shed pollen through each air blowing tube and Directional transport to act on the corresponding female parent area to achieve directional, uniform and efficient pollination

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