›› 2016, Vol. 28 ›› Issue (12): 1979-1984.DOI: 10.3969/j.issn.1004-1524.2016.12.03

• Crop Science • Previous Articles     Next Articles

Discussion of the method of quality breeding in Brassica napus

LIN Bao-gang1, ZHANG Dong-qing1,*, DING Hou-dong1, ZHANG Yao-feng1, YU Hua-sheng1, HUA Shui-jin1, SHAO Mei-hong2, LIU Hua-zhou3   

  1. 1. The Institute of Crops and Nuclear Technology Utilization, Zhejiang Academy of Agricultrual Sciences, Hangzhou 310021, China;
    2. Technology Spread Station of Grain and Oil, Jiande Agriculture Bureau, Jiande 311600, China;
    3. Kecheng Seed Industry Limited Company, Wenzhou 325014, China
  • Received:2016-09-13 Online:2016-12-15 Published:2017-01-05

Abstract: In order to improve the contents of oil and oleic acid in Brassica napus, a new method of rapeseed quality breeding, advanced selection based on superior pool was put forward according to the genetic law of oil content and combined with many years of breeding experience. The core of this method was the construction of superior groups pool quality, superior combinations selection of natural pollination in low generations (F1-F2), individual plant selection of self-pollination and natural pollination in the middle generations (F3-F5). The yield and quality stability of rapeseed were determined by using the multi-environment cultivation after the formation of stable strains of high yield and high quality in F6-F8 generation. Lines with small variation range, excellent quality and high yield were selected to participate in all levels of testing. The oil content of Zheyou 50, Zheyou 51, Zheyou 33 and Zheyou 21 bred by the method were higher than 47%. The oil content and yield were in the domestic leading level. Zheyou 80 was the first variety with high oleic acid in China.

Key words: rapeseed, quality breeding, advanced selection based on superior pool, selection generation

CLC Number: