矮生长豇豆的生育与产量形成

Studies on the Growth and Development and Yield Formation of Dwarf Asparagus Bean Vigna ungui culata W. ssp. sesquipedalis (L.) Verd

对春播和秋播矮生长豇豆的生长动态，叶面积形成与效能，结荚与豆荚产量形成特性等进行研究，结果表明，春播矮生长豇豆植株和各个器官的生长动态均呈Ｓ形曲线变化。秋播矮生长豇豆虽然无抽蔓期，但其生长动态与春播基本相同，而且植株生长和叶面积都较大，单株结荚稍多，但产量无明显差异。净同化率（ＮＡＲ）在营养生长过程较高，生殖生长过程较低。本文还讨论了矮生与蔓生长豇豆生育与产量形成的差异。

Growth trend,leaf area formation,podding characteristics and pod yield formation of dwarf asparagus bean sowed in spring and autumn in Guangzhou were studied. The results showed that the growth trends of plant and its organs (root,stem,leaf and pod) appeared in S curve when sowed in spring. The growth trends of dwarf asparagus bean sowed in autumn were similar to that sowed in spring. The gowth,leaf area and pods per plant were more than that sowed in spring,but there was no significant difference in yields. Net assimilation ratio (NAR) was higher during vegetative growth and lower during reproductive growth. The differences of growth and development and yield formation between dwarf and vine asparagus bean were discussed.