非电离辐射处理后小麦萌发生长的正响应

A study of the positive response of the wheat germination and growth with non ionization radiation treatment

研究了小麦萌发与生长对３００ ｎｍ 紫外非电离辐射处理的正响应。结果表明，在照射距离为４ ｃｍ ，照射时间分别为２，４，６，８ 与１０ ｍ ｉｎ 时，供试材料均表现一定的正响应，发芽势、发芽率、发芽指数与活力指数等都有不同程度的提高。照射距离为４ ｃｍ 、照射４ｍ ｉｎ 时正响应最为显著。非电离辐射促进了吸涨作用与呼吸作用。

The positive response of the germination and seeding growth of Shaan He No.6 wheat to the ultraviolet radiation and its physiological mechanism are studied in this article.The result shows that when radiation distance is 4 cm and radiation time is less than 10 minutes,the subject has a significant positive response to the treatment,the germination rate,germination energy,germination index and activity index of the subject rises significantly compared with the control.The mechanism is that,firstly,ultraviolet radiation makes the subjects absorb water more than the control,secondly,it makes the α amylase and fumart creductase activity in the seed increase,thus lay an essential foundation for the speeding of the subjects germination and seeding growth.