ISSN : 0975-3710
EISSN : 0975-9107
S.G. KHORASIYA1, K.L. RAGHAVANI2, A.M. BHARADIYA3*
1Department of Entomology, Junagadh Agricultural University, Junagadh Road, Motibag, Junagadh, 362001, Gujarat
2Department of Entomology, Junagadh Agricultural University, Junagadh Road, Motibag, Junagadh, 362001, Gujarat
3Department of Entomology, Junagadh Agricultural University, Junagadh Road, Motibag, Junagadh, 362001, Gujarat
* Corresponding Author : ambharadiya@jau.in
Received : 07-09-2016 Accepted : 06-11-2016 Published : 24-11-2016
Volume : 8 Issue : 57 Pages : 3106 - 3109
Int J Agr Sci 8.57 (2016):3106-3109
Keywords : Direct-indirect effect, Abiotic factors, Population fluctuation, Gram pod borer, H. armigera, Chickpea
Conflict of Interest : None declared
Acknowledgements/Funding : Author are thankful to Department of Entomology, Junagadh Agricultural University, Junagadh Road, Motibag, Junagadh, 362001, Gujarat
Author Contribution : All Author equal contributed
Direct and indirect effect of various abiotic factors on population build-up of H. armigera indicated that maximum temperature exerted very high negative direct effect (-1.1428) while morning relative humidity registered positive and high direct effect (0.4842). Negative high indirect effect was noticed of minimum temperature (-0.8909), morning (-0.4419) and evening relative humidity (-0.3891) through maximum temperature. While remaining weather parameters showed moderate to low positive indirect effect except evening relative humidity on population build-up of H. armigera during 2011-12. Minimum temperature (-0.5537), morning relative humidity (-0.9521) and wind speed (-0.4425) exerted negative high direct influence while, evening relative humidity (0.9534) exerted positive high direct influence on population build-up of H. armigera. Morning relative humidity exerted high negative indirect effect (-0.8193) through evening relative humidity and high positive indirect effect through wind speed (0.4493) and evaporation (0.6588) during rabi, 2012-13.