EFFECT OF FEEDING LEAVES GROWN UNDER DIFFERENT SYSTEM OF MULBERRY CULTIVATION ON SEED CROP REARING OF BOMBYX MORI L.
G.S. VINDHYA *
REGIONAL SERICULTURAL RESEARCH STATION, CHAMRAJNAGAR, INDIA.
H.T.K. LEIN *
CENTRAL SERICULTUR LRESEARCH CENTRE, VEITNAM
M.T. HIMANTHARAJ *
CENTRAL SERICULTURAL RESEARCH AND TRAINING INSTITUTE, MYSORE-570008, INDIA.
M.T. HIMANTHARAJ *
CENTRAL SERICULTURAL RESEARCH AND TRAINING INSTITUTE, MYSORE-570008, INDIA.
VINEET KUMAR *
CENTRAL SERICULTURAL RESEARCH AND TRAINING INSTITUTE, MYSORE-570008, INDIA.
A. MEENAL *
CENTRAL SERICULTURAL RESEARCH AND TRAINING INSTITUTE, MYSORE-570008, INDIA.
R.K. RAJAN *
REGIONAL SERICULTURAL RESEARCH STATION, CHAMRAJNAGAR, INDIA
C.K. KAMBLE *
CENTRAL SERICULTURAL RESEARCH AND TRAINING INSTITUTE, MYSORE-570008, INDIA.
R.K. DATTA *
CENTRAL SERICULTURAL RESEARCH AND TRAINING INSTITUTE, MYSORE-570008, INDIA.
*Author to whom correspondence should be addressed.
Abstract
An experiment was conducted to analyse and evaluate the leaf quality of mulberry grown under three systems of mulberry cultivation viz. 2"x2", 3'x3' spacings and tree plantation for seed crop rearing of B. mori. Rearing and grainage parameters like larval duration, larval weight, survival rate, shell ratio, melting cocoon percentage, moth emergence percentage, laying recovery percentage, fecundity and hatching percentage was studied in both bivoltine (NB4D2) and multivoltine (Pure Mysore) races. For all the parameters 3'x3' spacing has given better results during summer and winter seasons compared to other spacing and was significantly higher for low melting cocoon percentage and laying recovery percentage. Whereas tree leaf was found better during rainy season. Hence, it is concluded that 3'x3' spacing of mulberry cultivation is better than 2 X 2 spacing during summer and winter seasons whereas tree leaves are recommended during rainy season for seed crop rearing.