油菜农艺性状对其产量的影响

The impact of the agronomic traits on the rape yield

以南通市2004—2009年油菜产量和反映油菜生长状况的8个因子(实际密度、株高、茎粗、分支高、每角粒数、千斤重、角果数、单株角数)对油菜产量与其农艺性状的关系进行了灰色关联分析。结果表明,油菜产量与油菜各农艺性状的关联度依次为单株角数>株高>千粒重>茎粗>角果数>实际密度>每角粒数>分支高。一方面我们在种子的选择上应尽量选择单株角数多、植株高和千粒重值较大的品种;另一方面,可以通过合理的调控油菜种植和生长期间的水肥、温度、湿度等条件,调控油菜的农艺性状,进而提高油菜的产量。

Based on gray relational grade, this paper analyzed the effect of eight agronomic traits （actual density, plant height, stem diameter, branch high, number per Angle, thousand grains weight, pod number, pod seed） on the rape yield in Nantong city between 2004--2009. The results showed that the correlation degree between rape yield and agronomic traits was number per Angle〉plant height〉 thousand grains weight〉stem diameter〉pod number〉actual density〉pod seed〉branch high. Therefore,we should choose the seeds which have large number per angle,heighter plants and heavier thousand grains weight; and through strengthening lhe regulation and control of fertilizer, temperature, humidity, and other conditions during the rapeseed planting and growing season to increase the rape yield.