引言在长艾石敦从1967年起即已开始研究射线对果树栽培品种方面的影响。绝大多数试验目的均想产生一个有用的突变,一般都集中于改进个别栽培方面不良的性状。工作很大部分是放在苹果方面,但又对联合王国栽培较广的梨,李子和樱桃的栽培品种也进行了处理。 (见表1) INTRODUCTION The effect of radiation on fruit tree cultivars has been studied since 1967 in St Ait Stone. For the most part, the purpose of the experiment is to produce a useful mutation that generally focuses on improving poor traits in individual cultivars. Much of the work has been done on apples, but cultivars of pear, plum and cherry cultivated in the United Kingdom have also been processed. (See Table 1)