The evaluation of 4 promising strains of eri silkworm viz Greenish
Blue Zebra (GBZ), Yellow Zebra (YZ), Yellow Plain (YP) and Greenish
Blue Plain (GBP) was done under the climactic condition of Vidarbha
region of Maharashtra. The origin of eri silkworm is in the climatic
conditions of North East Region of India. The Climatic condition of
Vidarbha region of Maharashtra is different from the source of origin of
eri silkworm. These eri silkworm strains are quite different from each
other both in morphology (colour polymorphism) and genetic traits.
The evaluation was done considering various parameters i. e. Cocoon
weight, shell weight, shell ratio, larval duration, ERR %, fecundity and
life cycle duration. The Greenish Blue Zebra (GBZ) and Yellow Zebra
(YZ) show better performance in the all economic characters, fecundity
and better adaptability than Yellow Plain (YP) and Greenish Blue Plain
(GBP) in the climatic condition of Vidarbha region of Maharashtra.