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蜀万40是用77-2753选系4769为母本,蜀万761为父本,杂交选育而成。两年品比试验,比中熟推广品种蜀万761增产16.2%。省区试两年,各试点平均亩产280.0公斤,比对照平均增产12.0%,较高试点亩产达481.7公斤。1990年通过审定。本地区区试两年比对照品种绵阳11增产10.2%,1989年列为100万亩规范化栽培的推广品种。在四川的山
Shushan 40 is 77-2753 selected line 4769 as the female parent, Shushan 761 as the male parent, cross breeding. Two years than the test, than the mid-maturity varieties Shuwan 761 increase 16.2%. Two years of provincial-level trial, the average per-mu yield of 280.0 kg of each pilot, an average increase of 12.0% over the control, a pilot high yield of 481.7 kg per mu. Approved in 1990. Regional trial two years than the control varieties Mianyang 11 increased 10.2% in 1989 as one million mu of standardized cultivation of the promotion of varieties. Mountain in Sichuan