优质高产抗旱新桑品种川826选育

High Quality,High Yield and Drought Resistance Mulberry Variety Breeding

[目的]以优质、高产、抗逆为育种目标,对桑树新品种种质资源进行系统鉴定和综合评价。[方法]采用辐射与复合杂交相结合的育种方法,选育优质、高产、高抗桑树新品种,通过四川省桑品种区域试验和农村生产试验进行鉴定。[结果]新品种川826发芽率高、枝条直立、生长势旺;全年平均公顷桑产叶量比对照湖桑32号高13.95%;桑叶养蚕的万蚕产茧量比对照高8.88%,万蚕产茧层量比对照高8.8%,5龄担桑产茧量比对照高13.51%;秋叶硬化迟,抗干旱能力强。[结论]川826是一个优质、高产型桑树品种,综合性状优良。

[ Objective] The research aimed to carry out systematic identification and comprehensive evaluation on new mulberry variety germplasm resources taking high quality, high yield and drought resistance as breeding objective. [ Method ] High quality, high yield and drought resistance mulberry variety was bred by the method of radiation and multiple hybridization, then it was identified through the mulberry variety＇ s regional test and village produce experimentation of Sichuan Province. [ Result] The results showed that new variety Chuan 826 has high germination rate ,straight branches and prosperous growth vigour. The per hektare yield of it increased by 13.95% compared to Husang 32. The yield of cocoon and cocoon shell weight of 10 thousand larvae increased by 8.88% and 8.8% respectively compared to Husang 32. The yield of cocoon of 50 kg mulberry leaf at fifth instar increased by 13.51% compared to Husang 32. The induration of autumn leaves of Chuan 826 is slow, and has strong resistance to drought. [ Conclusion] Chuan 826 is high quality,high yield new variety,and has better synthesis traits.