The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2022
Filed:
Jul. 18, 2017
Hunan Agricultural University, Changsha, CN;
Hunan Hoping Seeds Science & Technology Incorporated Company, Changsha, CN;
Wenbang Tang, Changsha, CN;
Yuedong Xiong, Changsha, CN;
Xincai Ding, Changsha, CN;
Guoliang Yi, Changsha, CN;
Guihua Chen, Changsha, CN;
Huabing Deng, Changsha, CN;
Guilian Zhang, Changsha, CN;
Yue Wang, Changsha, CN;
Xingquan Ming, Changsha, CN;
Qiang Xu, Changsha, CN;
Ning Feng, Changsha, CN;
HUNAN AGRICULTURAL UNIVERSITY, Changsha, CN;
HUNAN HOPING SEEDS SCIENCE & TECHNOLOGY INCORPORATED COMPANY, Changsha, CN;
Abstract
A method for breeding a small-grain male-sterile rice line and a simple method for producing a hybrid rice seed are provided. The method for breeding the small-grain sterile rice line includes the following steps: crossing a female parent C815S with a male parent Qigui B to obtain a hybrid seed F1; planting the F1 and crossing the F1 with a female parent H155S to obtain a crossed hybrid seed F1'; planting the crossed hybrid seed F1′ to obtain a F2′ generation; planting an individual plant with ideal plant type, strong tillering, plant dwarf and small grain type from the F2′ generation and a F3′ generation, and then directional breeding more than two generations to obtain a seed with more than F5′ generation as the small-grain sterile rice line.