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首页> 外文期刊>Oryza >Estimation of heterosis for yield and associated traits in rainfed upland rice genotypes of Uttarakhand hills
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Estimation of heterosis for yield and associated traits in rainfed upland rice genotypes of Uttarakhand hills

机译：北方山丘旱地旱稻产量和相关性状的杂种优势估算

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摘要

In the present study a set of 45 F_1s developed through crossing in a half diallel fashion involving ten parents were evaluated for yield and its component traits. Significantly higher heterosis was observed in most of the hybrids for days to 50% flowering, days to maturity, kernel length, grain yield and grain number. In general, the estimated values of heterosis were low for plant height and days to maturity as compared to grain yield and other traits. The magnitude of heterosis for all yield traits was not expressed in a single hybrid combination and varied from cross to cross due to diverse genetic background of the parents. Crosses VL 8116 x Sukradhan 1, VL 30560 x Sukradhanl, VL 30560 x VL 8116, VL 30560 x Sukradhanl, VL 7620 x Sukradhanl manifested significant heterosis for grain yield as well as kernel length in the desirable range. Whereas, parents VL 30560, VL 30240, VL 8116, VL 7620 and Sukradhanl were the best parent for both grain quality and yield.
机译：在本研究中，通过涉及十个父母的一半拨号方式开发的一组45个F_1s，得到产量及其组分特征。 在大多数杂交种中观察到显着更高的杂种，几天至50％开花，天数，成熟，籽粒长度，籽粒产量和晶粒数。 通常，与籽粒产量和其他特征相比，植物高度和成熟日的估计值较低。 所有产率性状的杂种优势的大小没有以单一的杂种组合表达，并且由于父母的不同遗传背景，杂交背景变化。 Crosses vl 8116 x sukradhan 1，vl 30560 x sukradhanl，vl 30560 x Vl 8116，Vl 30560 x sukradhanl，Vl 7620 x sukradhanl表现出显着的杂种优势在籽粒产量以及核长度在所需的范围内。 虽然，父母VL 30560，VL 30240，VL 8116，VL 7620和Sukradhanl是粒度和产量的最佳父母。

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  • 来源
    《Oryza》 |2017年第4期|共9页
  • 作者

    JP Aditya; Anuradha Bhartiya; RS Pal; Rajashekara H; A Pattanayak;

  • 作者单位

    ICAR-Vivekananda Parvatiya KrishiAnusandhan Sansthan Almora Uttarakhand India;

    ICAR-Vivekananda Parvatiya KrishiAnusandhan Sansthan Almora Uttarakhand India;

    ICAR-Vivekananda Parvatiya KrishiAnusandhan Sansthan Almora Uttarakhand India;

    ICAR-Vivekananda Parvatiya KrishiAnusandhan Sansthan Almora Uttarakhand India;

    ICAR-Vivekananda Parvatiya KrishiAnusandhan Sansthan Almora Uttarakhand India;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 禾谷类作物;
  • 关键词

    Rainfed upland rice; heterosis; yield; quality;

    机译：雨水旱稻;杂种优势;产量;质量;

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