摘要
通过对黑鲁等５个良桑品种进行产叶量、发芽期及养蚕制种效果的对比试验，发现在邢台市蚕丝公司桑园中，以黑鲁桑产叶量最高，平均每公顷每年产叶３２７６０ｋｇ，且连年稳产；春季发芽期比其他品种早３ｄ左右，可提早催青６ｄ；养蚕制种良卵率高，可达９９％以上，是可以推广利用的品种。
The leaf production,the sprouting period and the effect on silkworm breeding of five mulberry varieties were compared.The results showed that in the mulberry orchard of Xingtai Silk Company,the yield of Heilu mulberry was the highest (32760kg/ha·year in average) and was stable.Its sprouting period in spring was 3 days earlier than that of others and the good egg rate for the silkworm fed with the Heilu mulberry was over 99%.
出处
《河北林果研究》
1997年第3期241-243,共3页
Hebei Journal of Forestry and Orchard Research
关键词
桑树
品种
产量量
制种
mulberry species
leaf production
sikworm breeding
