摘要
本文从个体生长发育角度出发,分析了甜菜根重、蔗糖含量与各生育阶段的冠层因子间的关系。在筛选出的影响根重、含糖较大的因子中,亩产2.5t时的冠层主要性状指标为:幼苗期叶丛高度为21.4～23.1cm,最大叶片叶面积为121.5～137.8cm^2;叶丛快速生长期的鲜叶数为16.3～17.8片,最大叶片叶面积为389.3～446.4cm^2;块根糖分增长期的鲜叶数为18.4～20.3片,最大叶片的叶面积为254.5～290.6cm^2;糖分积累期的鲜叶数为17.7～19.8片,叶丛高为44.2～48.4cm。
The relationship between sugarbeet root weight, sugar content and tops factor were analysised in each period while it was from point of view of the individual growing and development. The target of main characters of tops, with 2.5t/mu among the biger influence factor selected on the root weight,
sugar content could be as follows; the tops height were 21.4-23.1 cm in
seedling stage, the leaf area of bigest leaves were 121.5-137.8 cm2, the
numbers of fresh leaf were 16.3-17.8 in the fast growing stage of tops,
the leaf area of the bigest leaves were 389.3-446.4cm2, the number of fresh
leaf were 18.4-20.3 in the sugar content increasing stage in root, the leaf
area of the bigest leaves were 254.5-290.6 cm2, the number of fresh leaves
were 17.7-19.8 and tops height were 44.2-48.4 cm in the sugar content
accumulation stage.
关键词
甜菜
冠层因子
产量
质量
相关分析
Sugarbeet, Tops factor, Correlation analysis, Path analysis
