Results of selection and development of mulberry and silkworm varieties in the period 1985-2004
2005
Dang Dinh Dan
The Sericulture is Vietnamese Traditional Occupation that is very closed to the life of the farmer. Now there be about 30,000 hecta of mulberry tree cultivated in the Red River Delta, a long the coast of The Center and Bao Loc, Lam Dong as well. Before the Renovation (1986).The Capacity of mulberry leave could be 15 tonna per hecta. The Capacity of silkworm cocoon was from 500 to 600 kg per hecta of mulberry leave. During over 20 years, the sericultural reseach Centers and Institutions have made a great contribution to the Sericulture by creating many new breeds of mulberry and silkworm with their high capacities : thereare 10 new breeds of mulberry with their capacities of 40- 45tonna per hecta, good quality and good growth. They are cultivated successfully such as: Three ploid No 12, No 28; Cross - Bred VH9, S7CB. There are about 20 new breeds of silkworm are selection, Cross -Bred and raised in different season throught nationswide such as: §SK, BM, TN1827, B42, B46, TN10, TQ112. By applying the new breeds of mulberry and silkworm into practice,the capacity of mulberry leave now is increasing about 266 percent and silkworm cocoon increases about 280 percent. Comparing to the Cultivation of Corn, the income that we can get from doing sericulture is 4 - 5 times more and comparing to the Cultivation of sugar-cane the income of the sericulture is 5 - 6 times more
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