浙江农业学报 ›› 2017, Vol. 29 ›› Issue (5): 708-716.DOI: 10.3969/j.issn.1004-1524.2017.05.04

• 作物科学 • 上一篇    下一篇

水稻温选恢复系产量相关性状配合力分析

马国华, 徐秀如*, 张宏化, 楼珏   

  1. 温州科技职业学院 浙南作物育种重点实验室,浙江 温州 325006
  • 收稿日期:2017-02-06 出版日期:2017-05-20 发布日期:2017-06-06
  • 通讯作者: 徐秀如,E-mail: 392528617@qq.com
  • 作者简介:马国华(1976-),男,浙江瑞安人,副研究员,硕士,主要从事水稻育种研究。E-mail: seedrice@aliyun.com
  • 基金资助:
    温州市种子种苗创新专项项目(N20150005,Z20160003)

Analysis on combining ability of yield related traits in Wen-xuan restorer lines in rice (Oryza sativa L.)

MA Guohua, XU Xiuru*, ZHANG Honghua, LOU Jue   

  1. Key Laboratory of Crop Breeding in South Zhejiang, Wenzhou Vocational College of Science and Technology, Wenzhou 325006, China
  • Received:2017-02-06 Online:2017-05-20 Published:2017-06-06

摘要: 以7个核质互作雄性不育系为母本,温恢365、温恢845等5个恢复系为父本,按照North Carollina Ⅱ(NCⅡ)遗传交配设计配制35个F1组合,在固定模型下分析亲本7个性状一般配合力效应和组合特殊配合力效应。结果表明:温恢365是配制强优势F1组合较理想的恢复系,R117和温恢845是值得利用的亲本恢复系材料;新露A×R845是35个组合中单株产量最高的组合。在随机模型下,分析了用不育系和恢复系所配组合F1产量性状变异的遗传基础,发现单株有效穗数的遗传变异主要由基因的非加性效应起作用,单株产量、每穗总粒数、每穗实粒数、千粒重、穗长和株高6个性状的遗传变异主要受基因加性效应影响。株高和千粒重的狭义遗传率较高(80%左右);穗长、每穗总粒数和每穗实粒数的狭义遗传率中等(50%左右);单株有效穗数和单株籽粒产量狭义遗传率低(8%左右)。

关键词: 水稻, 恢复系, 农艺性状, 配合力分析

Abstract: Seven CMS lines and five indicate restorer lines such as Wen-hui 365 and Wen-hui 485 were chosen to analyze the combining ability of seven traits in 35 F1 combinations by the way of genetic mating design of North Carollina Ⅱ.It was found that Wen-hui 365 was an ideal restorer line for making heterotic hybrid, and R117 and Wen-hui 485 were also valuable restorer materials, and Xin-lu A/R845 was the combination showing the highest grain yield per plant among the 35 combinations. The genetic basis of the variation of yield traits in the combinations was analyzed in a random model. The results showed that the genetic variation of the productive panicle per plant was mainly caused by the non additive effect, while those of grain yield per plant, spikelet per panicle, filled grain per panicle, 1 000-grain weight, panicle length and plant height were mainly caused by additive effects. The narrow heritabilities of plant height and 1 000-grain weight were high (80%). The narrow heritabilities of panicle length, spikelet per panicle and filled grains per panicle were medium (50%). And the narrow heritabilities of productive panicle per plant and grain yield per plant were low (8%).

Key words: rice, restorer line, agronomic characteristics, combining ability analysis

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