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作物学报 ›› 1980, Vol. 6 ›› Issue (04): 193-202.

• 研究论文 •    下一篇

栽培稻籼粳亚种间杂种一代优势的研究

曾世雄; 杨秀青; 卢庄文   

  1. 华南农学院农学系
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1980-12-12 网络出版日期:1980-12-12

THE HETEROSIS OF F1 HYBRIDS BETWEEN ORYZA SATIVA SUBSP.HSIEN AND O.SATIVA SUBSP.KENG

Zeng Shixiong; Yang Xiuqing; Lu Zhuangwen   

  1. South China Agricultural College; Guangzhou
  • Received:1900-01-01 Revised:1900-01-01 Published:1980-12-12 Published online:1980-12-12

摘要: 用27个组合得出的试验结果表明:籼粳稻亚种间杂种一代具有很强的优势,主要表现在单株秆重、每穗总粒数、单株茎数、株高,穗长、抽穗日数、着粒密度、全生育期等性状均显著超过大值亲本(P<0.005)。但杂种一代的成穗率、每穗实粒数和结实率均显著低于双亲平均值(P<0.005),杂种一代的单株穗数、千粒重和单株粒重与大值亲本

Abstract: The heterosis of 27 inter subspecific hybrids between Hsien andKeng was shown to be highly significant in such characters as strawweight per plant,number of grains per panicle,tillers per plant,plantheight,ear length,date of heading,panicle density and days of matu-rity.The hybrids exceeded the grea

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