STUDIES ON THE IMPACT OF HABITAT ON INSECT POLLINATOR DIVERSITY ON CORIANDER (Coriandrum sativum L.) BLOOM

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dc.contributor.advisorSHARMA, Harish Kumar
dc.contributor.authorMANJU, DEVI
dc.date.accessioned2016-12-20T11:27:27Z
dc.date.available2016-12-20T11:27:27Z
dc.date.issued2013
dc.description.abstractABSTRACT The present study was conducted to determine the impact of habitat on insect pollinator diversity on coriander (Coriandrum sativum L.) bloom. In the present studies, standard protocol methods of measuring insect pollinators diversity have been followed. The studies were conducted at two different habitats, in habitat 1, field is surrounded by cultivable crop while in habitat 2, field is surrounded by natural vegetation. Thirty nine insects belonging to 31 genera under 18 families and 8 orders were observed in the experimental habitats surrounding coriander crop. More insects were observed in coriander field surrounded by natural vegetation (habitat 2) as compared to field surrounded by cultivable crop (habitat1).Order Diptera formed 94 per cent of the insect visitors in scan sampling. Episyrphus balteatus and other syrphids were significantly higher in habitat 2 (field surrounded by natural vegetation), in comparison to habitat 1 (field surrounded by cultivable crop).Hive bees and wild bees activity was observed quite low which did not vary significantly during different flowering stages. Insect visitors trapped in fluorescent pan traps showed that more insects were trapped at full bloom stage. In habitat 1, equal number of insects was trapped at end of bloom and full bloom stage in coriander field. Relative abundance (by scan sampling) and diversity (by sweep net method), in general, was statistically more at 1000 h than at 1200h and 1500h. Different Shannon Weiner pollinator diversity index for different sampling methods indicated that for sampling pollinator diversity all the methods have to be collectively employed as no single method is fully reliable. The artificially provided trap nesting materials were not occupied by the bees. Bees from family of Megachilidae, Halictidae and Apidae were found on coriander bloom.en_US
dc.identifier.other48056
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/91344
dc.language.isoenen_US
dc.subEntomologyen_US
dc.these.typeM.Sc
dc.titleSTUDIES ON THE IMPACT OF HABITAT ON INSECT POLLINATOR DIVERSITY ON CORIANDER (Coriandrum sativum L.) BLOOMen_US
dc.typeThesisen_US
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