【摘要】 以2500R⁶⁰Co-γ射线于萌芽初期照射盆栽毛桃（P·persica）砧燕黄桃一年生植株,新梢留6节位重复摘心2次.在二次梢段上产生的突变体中选育出“西桃1号”黄蜜桃。其平均单果重为150g,最大果重218g,6月7日～14日成熟,比原亲本成熟期早46～52天,丰产、稳产、抗逆性强。果实着色鲜艳,果肉金黄,甜酸味浓,汁液多,有香气,鲜食味佳,罐头成品质量优良。更多还原

【Abstract】 One-year-old potted trees of “Yanhuang”,which was grafed on a normal peach（A.persica）rootstock and is a goor peach variety widely cultivated in Sichuan for fresh fruitsale and oanning,were irradiated with ⁶⁰Co γ-rays（2,500 r）in spring of 1983.Two tipprunings were made of the shoots derived from the irradiated buds,and mutants were ob-served on the secondary shoots from the six remaining nodes of the primary shoots.Re-peated sifting and evalutaion in the following eight years led to the development of a newsuperior line,which was named “Xiyuan 1”in 1991.The new cultivar mature 46-52 daysearlier than Yanhuang while maintaining the good.characters of its origunal parent.更多还原