甘蓝型杂交油菜角果长度与产量构成因素的相关分析

[目的]为了研究甘蓝型杂交油菜角果长度与产量构成因素的相关关系,[方法]试验以649个甘蓝型杂交油菜组合进行田间试验、室内考种及相关分析。[结果]结果表明：甘蓝型杂交油菜角果长度平均为6.4596cm,变幅范围4.7184-8.6463cm,角果长度在5~7cm之间的材料占总数比例的96.76%,而平均角果长度≥8cm的材料只占群体比例的1.54%,小于5cm的材料也只占群体比例的1.70%,说明油菜长角果与短角果材料都较少。角果长度与千粒重(r=0.3815)、角粒数(r=0.4324)及单株产量(r=0.2347)呈极显著正相关,角果长度与单株角果数(r=0.0076)呈不显著正相关,说明在选育长角果材料的同时不仅可以提高千粒重、角粒数及单株产量,而且不会降低单株角果数。[结论]由此可知,提高油菜的角果长度,有利于提高油菜产量。

Correlation Analysis of Pod Length and Yield Components of Hybrid Brassica napus

The paper aims to study correlation between of pod length and the yield components in hybrid Brassica napus, 649 combinations of Brassica napus were used for field experiment, laboratory test and correlation analysis. The results showed that: The average pod length of Hybrid Brassica napus was 6.4596 cm, the range was 4.7184-8.6463 cm, Pod length between 5~7cm material accounts for 96.76% of the proportion of the total, However, the material with average angular fruit length greater than or equal to 8cm is only 1.54% of the population, and the material less than 5cm is only 1.70% of the population, Instructions there are few short - Angle pod in the rape.Pod length and 1000-grain weight(r=0.3815), seeds pod(r=0.4324) and yield were very significant positive correlation (r=0.2347), with pods per plant(r=0.0076) and pod length has no significant positive correlation, at the same time in the breeding of longer pod materials that not only can improve the Angle of 1000-grain weigh , seeds pod and yield plant , and will not reduce the pods per plant. Therefore, increase of rape pod length, improve rape production.