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农学学报

农学学报 ›› 2011, Vol. 1 ›› Issue (9): 22-25.

• 农艺科学 生理生化 • 上一篇    下一篇

晋南夏播油葵杂交种农艺性状与产量的关系研究

樊云茜 杨海峰 段学艳 卫玲 周安定   

  • 收稿日期:2011-07-18 修回日期:2011-10-09 出版日期:2011-11-20 发布日期:2011-11-20
  • 基金资助:

    向日葵新品种选育

Correlation Study Between Agronomic Traits and Yield of Oil-sunflower on Summer Sowing

  • Received:2011-07-18 Revised:2011-10-09 Online:2011-11-20 Published:2011-11-20

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摘要：

为了弄清在晋南复播条件下油葵杂交种农艺性状与产量的关系及相关程度，为新品种选育提供可借鉴的理论支持，对15个油葵杂交种10个农艺性状与产量的相关关系及通径进行分析。结果表明：株高、茎粗、单盘粒数、单盘粒重与产量呈显著或极显著正相关，倒伏率与产量呈显著负相关；单盘粒数和单盘粒重主要通过直接效应影响产量，茎粗主要通过间接效应影响产量，株高和倒伏率通过综合效应影响产量。进一步的研究结果显示，随株高和单盘粒数的增加，产量呈先上升后缓慢下降的趋势，当株高172.1~176.8 cm，单盘粒数1352~1428粒时，产量达到最大值。故此认为在新品种选育中应通过对单盘粒重、单盘粒数等一些直观的性状的选育达到选育高产的目的。

关键词: 仙草, 仙草, 土壤肥力, “3414”试验, 肥料效应, 推荐施肥量

Abstract:

In order to clear the correlation between traits of Oil-sunflower and yield，and to providetheoretical support for breeding fifteen hybids were studied by Correlation Analysis and Path Analysis on summer sowing oil-sun flower in South of Shanxi. It was demonstrated that plant height, stem diameter, the number of single disc seed, and single disc weigh with yield showed a significant or extremely significant correlation, while fall percentage with yield showed a significant negative correlation. The path analysis showed that the number of single disc seed and single disc weigh influenced yield directly, stem diameter influenced yield indirectly, plant height and fall percentage influenced yield synthetically. Further analysis showed that with the increase of plant height and the number of single disc seed yield first increased then decreased. When the number of single disc seed was 1352-1428, plant height was 172.1-176.8 cm, yield reached the biggest. With the increase of stem diameter and single disc weigh yield increased continuously, With the increase of fall percentage, yield decreased continuously. The results can be used to breed oil-sun flower hybids.