天然黄色茧蚕品种实验室比较与生产应用试验

经过对新育成的黄色茧品种与生产应用白色茧品种秋丰×白玉的对比试验及丝质鉴定，秋丰×黄，正反交、秋丰×HJ，正反交这两对黄色茧品种具有龄期短、抗病力强、虫蛹率高的优点；黄色茧品种的产茧量与对照种相比差距不显著；两对黄色茧品种的鲜茧出丝率等茧丝质指标略低于对照，解舒丝长达到750m左右，解舒率均在65％以上，净度优良，符合缫丝业对茧质的基本要求。对其中的秋丰×HJ7在农村进行规模化中秋蚕饲养与缫丝应用试验，符合生产应用要求。

The Lab Comparison and Production Application Test of Natural Yellow Cocoon Silkworm Variety

Two newly bred reciprocal crosses yellow cocoon silkworm strains, Qiufeng x Huang3 and Qiufeng ×HJ7 were compared with Qiufeng x Baiyu. The results showed that the new strains had the advantages of short instar, strong resistance to disease and high larva-pupa rate. And there was no significant difference on the yields of cocoon. The two yellow cocoon strains were slightly lower than the control group in some indexes of cocoon silk quality, such as the raw silk rate of fresh cocoons. However, they reached the basic requirements for silk reeling industry due to their lengths of non broken filament coming to about 750 m, and all over 65% reel abilities with good cleanness. The tests of large scale rearing and reeling application were carried out in the mid autumn for one of the yellow cocoon strains Qiufeng ×HJ HJ7, and reeling application. The results showed that it met the applied requirements in production.