论文部分内容阅读
甘薯块根的膨大,是同化物质的积累过程。这个过程的生理变化是复杂的,它受着内外因子所影响。地上部的生长和发育状况,在相当大程度上直接支配着块根的膨大。了解这些过程的变化规律,从而通过栽培措施,可以提高塊根产量,控制它向适合于人们需要的方面发展。但对这些知识目前知道还很少。下面仅就广东省农业科学院一九五九年所观察到的一些资料作初步探讨。 一 同化物质的积累和转移 观察甘薯的生育过程,地上部和地下部的生长是循着一定的植物学规律进行的,即生育前期营养物质的吸取和分配主要是供给
The enlargement of sweet potato root is the accumulation process of assimilation material. The physiological changes in this process are complex and are influenced by internal and external factors. The growth and development of the shoot directly to a large extent directly dominate the enlargement of roots. Understand the changing rules of these processes, so that cultivation measures can increase the yield of tuberous roots and control its development to meet the needs of the people. But little is known about this knowledge so far. The following only some observations on the Guangdong Academy of Agricultural Sciences in 1959 for some preliminary study. The accumulation and transfer of an assimilated material Observe the reproductive process of sweet potato, and the growth of above-ground and below-ground parts follows a certain law of botany, that is, the intake and distribution of nutrients during the early growth period are mainly supplied