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(一) 辐射育种利用辐射的方法培育农作物新品种已有二、三十年的历史。利用一定剂量的射线(如γ射线、α射线、β射线、中子等)照射作物和果树的干种子、块根、块茎、植株或家蚕、微生物等,直接或间接地在机体内产生电离作用,强烈地促进有机体内的化学反应和结构变化,引起有机体遗传性的改变,产生各种变异,从中选择其有利变异,进一
(A) radiation breeding The use of radiation to cultivate new varieties of crops has two or three decades of history. Irradiation of dry seeds, tubers, tubers, plants or silkworms, microorganisms and the like of crops and fruit trees with a dose of radiation (such as gamma rays, alpha rays, beta rays, neutrons and the like) directly or indirectly generates ionization in the body, Strongly promote the chemical reaction and structural changes in the organism, causing the organism genetic changes, resulting in a variety of variations, choose from its favorable mutation, into a