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培育壮苗是油菜丰产的基本措施之一。众所周知,苗的壮健与否,表现在外部形态、内部结构与生理机能上均有其一定的特征。握掌这些特征,对于鉴别幼苗的好坏、探讨壮苗形成的规律、以及贯彻正确的育苗技术措施均有重大意义。有关壮苗的研究,前人已有过不少的报导,但结合内部结构与生理机能等方面来进行分析的则甚少。 在油菜栽培上,脚茎粗细、长短是评价壮苗的主要形态指标之一,它对幼苗根系生
Breeding strong seedlings is one of the basic measures of rapeseed yield. As we all know, seedlings robust or not, manifested in the external shape, internal structure and physiological functions have their own characteristics. Grasping these characteristics of palm, for the identification of seedlings is good or bad, to explore the law of strong seedlings, and implement the correct technical measures of nursery are of great significance. There have been quite a few reports on the study of strong seedlings, but few are analyzed based on the internal structure and physiological functions. In rape cultivation, the thickness and length of the stalks are one of the main morphological indicators for evaluating seedlings.