春秋兼用耐氟蚕品种华峰_(GW)×雪·A的选配

A Fluoride-endurance Silkworm Variety Huafeng_(GW) ×Xue·A Suitable Both for Spring and Autumn

采用系统分离法建立了华峰灰、白蛾系 ;以华峰、雪松为基础 ,选择耐氟性强、茧丝质优良的现行品种组配若干多元杂交组合 ,通过实验室常规鉴定和耐氟性能测试 ,筛选出耐氟性能好、茧丝质优的家蚕三元杂交组合华峰GW×雪·A。 4省区联合鉴定和种场试繁表明 ,该组合各项经济性状都达到了菁松×皓月的水平 ,繁育性能比华峰×雪松有较大的改善 ,在氟化物污染较严重的蚕区饲养能正常生长发育 。

Using the method of pedigree separation,a grey moth strain and a white moth one of Huafeng were established.On the basis of Huafeng×Xuesong breed,we selected commercial silkworm varieties with strong fluoride endurance and excellent silk quality as crossing parents to combine some multiple hybrids.Through normal laboratory identification and fluoride endurance test,a three ways hybrid with strong fluoride endurance and high silk quality Huafeng GW ×Xue·A was selected.The results of united identification of four provinces and eggs multiplication experiments showed that all economic characters of this combination are as good as Jingsong×Haoyue and its reproductive characteristics were improved greatly compared with Huafeng×Xuesong.This variety can grow normally and give good crop in fluoride polluted sericultural areas.