春期原种催青日期的确定

The Determination of Incubation Starting Date of Parent Eggs for Spring Rearing Crop

阐述了春期原蚕种催青日期确定的原则 。

The paper dealt with the principle for determination of incubation starting date of parent eggs for spring rearing crop and listed the dates over the years in the main sericulture regions in Zhejiang province and China.