Breeding of a new multivoltine silkworm race Dak-205
Breeding of a new multivoltine silkworm race Dak-205
Mehar Nigar Ashiq, Muhammad Iqbal Ahmad and Raj Muhammad
ABSTRACT
A multivoltine silkworm race, DAK-205, was evolved from
a Japanese race AIJ-205 during breeding experiments for
development of pure lines. The newly developed line was
reared for six generations in succession from
April - October in 1987 including the hot months of June,
July and August when the room temperature was as high as
30°C and the relative humidity as low as 55%. The line
thus evolved can yield several crops of cocoons in a
year and is also resistant to silkworm diseases, high
temperature and low humidity.
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June 1990
Vol. 40, Iss. 2
