家蚕新品种“农科5号”建德农村试养初报

A Preliminary Report on Rearing Performance of New Silkworm Hybrid “Nongke No.5” in Jiande City

"农科5号"是浙江省农科院蚕桑研究所利用抗BmNPV品种资源秋丰N、白玉N,在原育成品种的基础上,组配杂交育成的一对抗BmNPV中丝量四元杂交家蚕新品种。2017年秋蚕期、2018年春蚕期在建德市大同镇进行了农村生产试养,该品种表现孵化齐一,各龄眠起快而齐,群体生长发育整齐,食桑旺、不踏叶,上蔟涌,营茧速度快,抗病性强,张种产量高,茧丝质优。但大面积农村应用表现,尤其是抗BmNPV情况,尚待进一步扩大示范调查。

"Nongke No.5" is a four-way crossing hybrid with medium silk production bred by the Sericulture Research Institute, Zhejiang Academy of Agricultural Sciences, using the BmNPV-resistant silkworm strain "Qiufeng N" and "Baiyu N". Trial rearing of this hybrid was carried out in Datong town of Jiande City in the autumn of 2017 and in the spring of 2018, results showed that this hybrid had very high hatching rate, uniform and fast molting in each instar, uniform growth and development in the larval stage, strong disease resistance, easy for caring, good habit for eating leaves, uniform maturing and fast cocooning, and high cocoon yield. However, the performance of large-scale rural rearing, especially the resistance to BmNPV, needs to be further tested in a larger range.