Quality loss in mosaic virus affected cassava (Manihot esculenta Crantz) leaves and its impact on economic traits of eri silkworm (Samia cynthia ricini Boisduval)

Publication Date : 02/01/2016

Author(s) :

N. Sakthivel.

Volume/Issue :
Volume 1
Issue 12
(01 - 2016)

Abstract :

Increase in intensity of cassava mosaic disease (CMD) in the leaves of cassava (Manihot esculenta Crantz), the secondary food plant of eri silkworm (Samia cynthia ricini Boisduval) resulted into corresponding reduction in nutritive values viz. moisture content, crude protein, total carbohydrate, N, P, K and total minerals and increase in anti- nutrient contents total tannins and HCN of the leaves. Such biochemical alterations adversely affected economic traits of the eri silkworm including larval period, weight of mature larvae, effective rate of rearing, cocoon yield, shell yield, single cocoon weight, single shell weight, silk ratio, fecundity and hatching percentage. The adverse effect was more pronounced in the variety H226 compared to MVD1. Key words: Cassava, CMD, biochemical alterations, eri silkworm, economic traits

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