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中国农学通报 ›› 2016, Vol. 32 ›› Issue (9): 106-111.doi: 10.11924/j.issn.1000-6850.casb15090130

• 农学 农业基础科学 • 上一篇    下一篇

食葵主要经济性状的配合力及杂种优势分析

杨海峰,樊云茜,段学艳,卫 玲,刘 博   

  1. (山西省农业科学院小麦研究所,山西临汾 041000)
  • 收稿日期:2015-09-29 修回日期:2015-10-21 接受日期:2015-11-25 出版日期:2016-03-29 发布日期:2016-03-29
  • 通讯作者: 樊云茜
  • 基金资助:
    山西省科技攻关项目“高产、早熟、大粒食葵新品种选育及丰产栽培技术研究”(20140311010-2);山西省农业科学院育种基础“食葵抗菌核病种质资源创新”(Yyzjc1411)。

Main Economic Traits Combining Ability and Heterosis of Edible Sunflower

Yang Haifeng, Fan Yunqian, Duan Xueyan, Wei Ling, Liu Bo   

  1. (Wheat Research Institute, Shanxi Academy of Agricultural Science, Linfen Shanxi 041000)
  • Received:2015-09-29 Revised:2015-10-21 Accepted:2015-11-25 Online:2016-03-29 Published:2016-03-29

摘要: 选用农家种改良过的6个食葵细胞质雄性不育系和4个优良的分枝型恢复系为亲本,按NCⅡ遗传交配设计,配成24个F1杂种,研究了9个主要经济性状,即株高、茎粗、生育期、盘径、单盘总粒数、单盘实粒数、结实率、百粒重、单株产量的配合力及杂种优势表现。结果显示:(1)不育系中有8个性状,恢复系中有7个性状的一般配合力差异达显著或极显著水平;有4个性状的特殊配合力差异达到显著或极显著水平;(2)株高、茎粗、生育期、盘径、百粒重等5个性状主要受基因的加性效应控制;单盘总粒数、单盘实粒数、结实率、及单株产量等4个性状则受基因的加性效应和非加性效应共同影响;(3)从GCA分析看,参试的不育系以A6最为理想,A2次之;恢复系则以C3最为理想。从SCA分析看,组合A2C1单株产量效应值最高;(4)杂种优势分析表明,大部分经济性状存在杂种优势,甚至相当一部分存在超亲优势,并且这些优势都是可利用的,F1多倾向于早熟、粗壮、高杆、大盘、多粒亲本。

关键词: 土地利用结构, 土地利用结构, 信息熵, 驱动力, 庄浪县

Abstract: Six cytoplasmic male-sterile(CMS) lines improved from local varieties and four branched male restorer lines were hybridized with 6×4 incomplete diallel, 24F1 hybrids were further used to estimate their general combining ability (GCA), specific combining ability(SCA) and heterosis effects on main economic traits of edible sunflower. Variance analysis showed that GCA of eight traits in sterile lines and seven traits in restorer lines had significant or highly significant variance, and SCA of four traits had significant or highly significant variance. The preponderance of additive gene action played the leading role in plant height, stem diameter, growth duration, head diameter, 100-grain weight, while total grain per head, effective grain per head, seed setting rate, and grain yield per plant were affected by additive gene action and non-addictive gene action variance. Based on the GCA effect analysis, among the CMS and the restorer lines, A6, A2 and C3 were found to be promising parents. Based on the SCA analysis, A2C1 was found to be a perfect cross. The result of heterosis analysis indicated that most economic traits had heterosis, some traits even showed super parent advantages which could be used. Most traits in F1 inclined to parent of early maturity, strong and high stem, big disk and multi-grains.

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