GUO DinggUO WU Zheng Zhong Jln YOngnin Xiang Sheng gang Xiao Jian
Zhong
(The Sericultural Research Institute of Hunan Province,Lixian 415500)
Abstract Through selection and breeding by employing hybridization,backcrossing,intervening crossing pedigree selection,two
summer- autumn sex—limited marking silkworm races,namely Dong(Xian1B)and Bi(Xian2A),of high quality were bred.A tetra
hybrid Dong·. Ting×Bi.Bo is combined when the Dong and Bi was Paired with Introduced
sexlimited races Ting(QiufengB)and Bo(854B).The results of laboratory
ldentification,countryside rearing test and multiplication in silkworm
eggs farm showed that it is a strong,healthy and easy to rear variety with
uniform cocoon,good filament properties,easy rearing for parent
silkworm,high propagation coefficient,complete ses-limited marking and
favorable comprehensive ecolomic characters.
Key wordS Bombyx
moriy Complete sex-limlted marking variety Dong.· Ting Bi.Bo
(原载《蚕业科学》2001年第1期,略有增删)
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