中国稻米

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花香A系列杂交水稻组合产量及米质性状相关及通径分析

  1. 1 四川省农业科学院生物技术核技术研究所,成都 610061;2 四川省农业科学院,成都 610066;3 蓬溪县农业局,四川 蓬溪 629100
  • 出版日期:2017-01-20 发布日期:2017-01-20
  • 通讯作者: 张志雄
  • 基金资助:

    四川省财政创新能力提升工程专项(2016ZYPZ01-001);四川省财政育种攻关项目;“十三五”国家重点研发计划专项

Correlation and Path Analysis of Yield and Quality Traits of Rice Combinations from Huaxiang A

  • Online:2017-01-20 Published:2017-01-20

摘要:

对10个花香A杂交组合参加水稻区域试验的产量和品质数据进行相关分析和通径分析。结果表明,产量性状中日产量与有效穗数、株高与穗长、总粒数与实粒数均成极显著正相关,日产量对产量的贡献最大(0.7205),其次为有效穗数;米质性状中整精米率与垩白粒率、长宽比与垩白粒率、垩白度呈显著负相关。提出了以花香A为亲本在配制杂交组合时,应主要通过提高其日产量、有效穗数,并适当延长其生育期、降低其株高与穗长来提升产量;同时,适度降低籽粒长宽比,从而提高灌浆效率,降低垩白粒率、垩白度,进而提高整精米率,提升稻米品质。

关键词: 水稻, 花香A, 产量, 米质, 相关分析, 通径分析

Abstract:

By analyzing the data collected from 10 hybrid rice from Huaxiang A for rice regional test with the coefficient of the correction and path analysis, the results indicated that there exist significant positive correlation between daily production and effective panicle number, plant height and panicle length, grain number per panicle and filled grain number of per panicle, respectively. And the contribution of daily production to grain yield is the largest, next for effective panicle number. The head rice rate and chalky rice rate, length/width ratio and chalky rice rate, length/width ratio and chalkiness degree are significant negative correlation. Accordingly, we can increase the yield of hybrid rice from Huaxiang A by improving the daily production and the number of effective panicle, extending the growth period, reducing the plant height and panicle length properly. And in order to improve the grain quality, we should reduce the length/width ratio moderately, so as to improve the grain filling efficiency, reduce the chalky rice rate and chalkiness degree, and improve the head rice rate.

Key words: rice, Huaxiang A, yield, quality, correlation analysis, path analysis

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