Estimation of the species diversity and evenness in mango under coastal Odisha climatic conditions

Abstract

The present studies entitled “Studies on diversity of insect pollinators of mango (Mangifera indica L.) under coastal Odisha condition” have been undertaken during flowering season, 2018-2019 at OUAT orchard, Bhubaneswar, CHES, Bhubaneswar, Farmer’s field, Berhampur and Farmer’s field, Sakhigopal, so as to evince that the present status of various insect pollinators on mango inflorescence. The number of species varied between 9-17 with the diversity index of 0.7978-0.9053. The diversity was almost uniform in early (0.3936) and late flowering period (0.4921) as compared to mid flowering period (0.6987). Diversity (0.5019-0.5820) at different day hour i.e. 08:00 a.m., 11:00 a.m., 01:00 p.m. and 04:00 p.m. didn’t show significant variation.