摘要
对甜红1号胡萝卜秋播过程中的生长发育动态进行了研究,结果表明:营养生长期分为叶片迅速增加期、叶片生长盛期和肉质根生长盛期;随着肉质根的发育其形状是先伸长后加粗,在末期才形成了本品种特有的商品形状;肉质根膨大过程中,地上部最大叶面积与肉质根单根质量呈指数函数相关关系;干物质的分配有个临界期,临界期之前生长中心是地上部,之后则是地下部;在肉质根膨大期间,光合产物的积累最多。
Dynamic growth of autumn sown Tianhong 1 carrot was analysed.The results were as follows： Morphological development of it might be classified as rapid increase phase of leaf number,prosperous phase of leaves and fast-growing phase of tap-root.The largest leaf area was exponentially correlated with each tap-root weight during tap-root thickening.The lengthening growth of tap-root was first and its widenning growth was secondary and the unique shape of the variety was formed at final stage of tap-root thickening.There was a critical period during distribution of dry matter.The growth center was aerial parts before the critical period and underground parts after that.Accumulation of dry matter was the most at tap-root thickening stage.
出处
《山西农业科学》
2011年第2期124-126,共3页
Journal of Shanxi Agricultural Sciences
基金
农业部"948"项目(201021B)
山西省"十五"科技攻关项目(01007)
