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Mechanized seed production method for hybrid rice

A hybrid rice and hybrid rice technology, applied in the field of crop breeding, can solve the problems of low efficiency of mechanization application, low seed production yield, poor benefit and the like

Active Publication Date: 2021-01-22
CHONGQING ACAD OF AGRI SCI
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  • Claims
  • Application Information

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Problems solved by technology

[0003] Due to the difference in the sowing date of the parents, hybrid rice seed production requires manual labor in sowing, transplanting, field management, auxiliary pollination, and harvesting. The price of hybrid seeds remains high, which seriously restricts the popularization and application of hybrid rice

Method used

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  • Mechanized seed production method for hybrid rice
  • Mechanized seed production method for hybrid rice

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Embodiment 1

[0030] A kind of hybrid rice mechanized seed production method (flow chart see figure 1 ), including the following steps:

[0031] 1. Breeding of Yuliangyou 912, a new high-quality hybrid rice combination suitable for mechanized seed production:

[0032] The recovery hybrid rice combination suitable for high-efficiency seed production should have three concordances: the consistency of the sowing and pumping period of the sterile line and the restorer line of the hybrid combination, the consistency of the growth period of the hybrid combination and the restorer line, and the consistency of the hybrid combination and the restorer line in the The consistency of traits such as plant leaf shape and rice quality.

[0033] Cultivate the combination of sterile lines and restorer lines with consistent sowing and pumping dates: select excellent sterile lines and restorer lines to sow and transplant at the same time in Yongchuan, Chongqing and Lingshui, Hainan, respectively, and select ...

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Abstract

The invention discloses a mechanized seed production method for hybrid rice, and belongs to the field of crop breeding. The method comprises the following steps of breeding a new partial restorer typehigh-quality hybrid rice combination suitable for mechanized seed production, mixing a sterile line and a restorer line of the seed production combination in proportion, conducting direct seeding byusing an unmanned aerial vehicle, performing field mechanized weeding and water and fertilizer management, spraying gibberellin, performing supplementary pollination, harvesting seeds, marking and storing. According to the method, a new rice combination three-selection method is utilized to breed the partial restorer type hybrid rice combination suitable for whole-process mechanical seed production requirements and having three consistencies, the seeds of the sterile line and the restorer line of the seed production combination are mixed in proportion, direct seeding by using the unmanned aerial vehicle is carried out, mechanized weeding and water and fertilizer management are carried out in cooperation, the gibberellin is sprayed, supplementary pollination is performed, the breeding meansis optimized, and the problem about whole-process mechanical seed production is solved.

Description

technical field [0001] The invention relates to the field of crop breeding, in particular to a hybrid rice mechanized seed production method. Background technique [0002] The industrial application of hybrid rice has made great contributions to solving the problems of China's food self-sufficiency and world food security. It promoted the second green revolution and played a major role in promoting the food security of China and the world. With the transformation of China's economy and changes in production conditions such as labor costs, the cost of hybrid rice seed production has also become a restrictive factor for the development of hybrid rice. [0003] Due to the difference in the sowing date of the parents, hybrid rice seed production requires manual labor in sowing, transplanting, field management, auxiliary pollination, and harvesting. The price of hybrid seeds remains high, which seriously restricts the popularization and application of hybrid rice. Contents of...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 张现伟李经勇唐永群肖人鹏姚雄刘强明甘兴友
Owner CHONGQING ACAD OF AGRI SCI
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