作　　者： ; ;

机构地区： 上海市农业科学院

出　　处： 《上海农业学报》 1994年第3期43-48,共6页

摘　　要： 比较研究了上海郊区二个甘蓝品种的田间生长发育动态，结果表明，二者在展开叶生长和生物量积累动态等方面存在明显差异。＂黄苗＂展开叶发生数量多于＂夏光＂，展开叶生长过程慢于＂夏光＂，叶球形成过程也慢于＂夏光＂。展开叶生长与叶球生长存在一定的重迭期，＂黄苗＂在结球前期全部展开，叶片生长基本完成，＂夏光＂在结球后期展开叶才全部达到最大叶面积和最大生物量积累，也就是说＂黄苗＂的重迭期短于＂夏光＂，因此，二品种在不同生育期对鳞翅目害虫的敏感性可能会表现一定差异。本文报道的甘蓝展开叶生长量资料将可进一步用于组建甘蓝生长模型。 Field development patterns of two varieties of cabbage (Brass ica oleracea L.) in Shanghai suburbs were comparatively studied in 1992. It was indicated that they showed differences in total unfolded leaf number, development process of unfolded leaves and head,and biomass accumulation. There was an overlapping period between unfolded leaf growth and folded leaf growth. All unfolded leaves of 'Huang-Miao' reached ceiling leaf area and biomass accumulation during earlier heading period,and those of 'Xia-Guang'did during later heading period. Therefore,there may be differences in their sensitivities to injury of lepidopterous pests during different developing periods. The data can be further employed to establish the cabbage growth model.

关 键 词： 甘蓝 田间发育动态 生物量积累

领　　域： [农业科学] [农业科学]