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通过连续３年对射线诱变的７４株沙田柚９３８个单位枝的花粉预选及果实鉴定，初选出１２个少核枝和８个较少核枝，其中综合性状突出的有７个。研究结果表明，激光和６０Ｃｏ的诱变效果优于快中子，都得到了较多的少（较少）核枝和较高的花粉败育型频率（６．４８％和６．１２％）。以醋酸洋红染色法对１５个少核枝进行的花粉育性检测表明，绝大多数少核枝的花粉败育率都高于４５％（对照为１２．２０％～１３．４６％），故初步确定将败育率≥４５％作为少核沙田柚花粉预选的主要参考指标。
Through 3 consecutive years of ray-induced 74 lines of Shatian pomelo 938 units of the pollen pre-selection and fruit identification, 12 primary and 8 fewer branches of nuclear primary election, of which seven were integrated outstanding features. The results showed that laser and 60Co mutagenesis were better than fast neutrons, both fewer (fewer) and higher pollen abortion frequencies (6.48% and 6.12%) were obtained. . The pollen fertility test on 15 branches with acetate magenta showed that the pollen abortion rates of most branches were higher than 45% (control was 12.20% ~ 13.46%), therefore It was initially determined that the rate of abortion ≥45% was the main reference index for pre-selection of pollen in Shatian pomelo.