Successful breeding and improvement work with silkworm at the experimental station of sericulture, Vratsa
1998
Nacheva, J. | Petkov, N. (Opitna Stantsiya po Bubarstvo, Vratsa (Bulgaria))
A review is made of the successful results and the problems of the breeding and improvement work with silkworm during the 100-year existence of the Experimental station of Sericulture in Vratsa. More than 200 breeds and hybrids have been developed, which made possible six changes of breeds.
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Эту запись предоставил Institute of Agricultural Economics