四川农业大学学报 ›› 1996, Vol. 14 ›› Issue (02): 207-210,206.doi: 10.16036/j.issn.1000-2650.1996.02.012

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油菜早熟品种栽培特性及密氮配置参数研究

郭子荣, 敬甫松, 袁代斌, 蒙大庆   

  1. 四川省绵阳市农业科学研究所, 绵阳市 621002
  • 收稿日期:1995-09-03 出版日期:1996-06-30 发布日期:2017-03-07

STUDY ON THE CULTIVATED CHARACTERS AND THE PARAMETERS OF NITROGEN AND DENSITY FOR RAPE EARLY VANIETIES

Guo Zirong, et al   

  1. Mianyang Institute of Agr. Sichuan/Mianyang, Sichuan, China 625014
  • Received:1995-09-03 Online:1996-06-30 Published:2017-03-07

摘要: 本文采用回归设计和裂区设计相结合的方法,对油菜早熟品种栽培特性和密氮配置参数的研究表明:在产量构成因子中,每角粒数对产量的直接作用最大,千粒重通过每角粒数对产量的间接作用亦较大,且每角粒数和千粒重有一定的协同效应。栽培上应以较高的每亩有效角果数为基础,通过增加每角粒数提高千粒重来实现油菜增产。提出亩植1.40-1.53万株,施氮素8.4-9.0公斤为早熟品种的适宜密氮配置参数。在此范围内,常规种偏低限,杂交种偏高限。还比较了绵油6号、川油11和锦杂905之间的差异,明确栽培要点,可在实践中应用。

关键词: 油菜[49EJ, 49EK], 早熟品种[49DA], 栽培特性, 密氮配置参数

Abstract: The cultivated characters and the parameters of nitrogen and density for rape early varieties were studied by combining the regression and split design. The result shows that among the yield components, the seed number per pod has the greatest direct contribution to yield, and the greatest indirect contribution belongs to the thousand kernel weight through pod seeds. The pod seeds and the thousand kernel weight have a coordinate effect. For high seed yield, more attention should be paid to enhanceing the pod seeds and the thousand kernel weight on the condition of a higher effective pods per mu, 14000-15300 plants and 8.4-9.0kg pure nitrogen per mu are the parameters for early varieties. Within such limits, the low suitable for conventional seed, the high for hybrid seed. The difference and cultivation techniques are given for MY-6, CY-11 and MZ-905.

Key words: BIRD RAPE, EARLY MATURING VARIETIES, CULTIVATED CHARACTER, PARAMETERS OF DENSITY AND NITROGEN

中图分类号: 

  • S565.4