不同桑树品种吸氟能力的研究

STUDY ON CAPABILITY OF THE ABSORPTION OF F BY DIFFERENT MULBERRY VARIETIES.

1984—1987年在同一桑园内对8个桑树品种进行了系列研究,表明各品种桑叶吸收和积累大气氟化物的数量是不同的,湖桑32是吸氟能力最低的优良品种,剑持和7311是吸氟量最大的劣等品种,其余品种介于两者之间。

A series of non-periodical and periodical continuous examinations of F content have been carried out in leaves of 8 mulberry varieties within the same mulberry orchard during spring and autumn silkworm periods from 1984 to 1987. The results show that the capability of mulberry absorption and accumulation of F varies with the mulberry varieties. Among the 8 mulberry varieties, 'Husang 32* has the lowest F absorption capability, therefore, it is an excellent variety for raising silkworm. 'Jianchi' and '7311' have the highest F absorption capability, they are inferior varieties for raising silkworm, and the rests arc mediate.