Impact of mating duration on larval growth of eri silkworm, Samia ricini Donovan in autumn and spring season

Abstract

The current investigation was carried out to find the impact of mating duration on larval growth of eri silkworm, Samia ricini Donovan, in the laboratory of Department of Sericulture, Assam Agricultural University, Jorhat in autumn and spring season during the year 2017-2018. Mating duration had no significant effect on larval growth. However, season had significant effect on larval duration, weight of full grown larvae, weight of matured larvae, ERR (%). Larval duration of eri silk moth was recorded shorter in autumn than spring season. Weight of full grown larvae, weight of matured larvae, ERR (%) of eri silk moth was recorded better in autumn season than spring season. Interaction effect between mating duration and season was significant in larval duration.Larval parameters showed better performance in the autumn season than spring season.