报道了１９８８年以来激光诱变导致沙田柚无核化的研究。果实种子数已由平均１４０粒左右变为完全无核。开花期套袋也已得到无核果实表明，柚树已可单性结实。过氧化物因同工酶和酯酶同工酶分析也证实，其遗传性状确已发生改变。 A report of the mutagenesis of Suda grapefruit since 1988 has been reported. The number of fruit seeds has changed from an average of about 140 seeds to completely seedless. Flowering bagging has also been fruitless fruit shows that the pomelo tree has been uniparent. Peroxidase isoenzyme and esterase isozyme analysis also confirmed that the genetic traits have indeed changed.