STUDIES ON THE EFFECT OF BEE ATTRACTANTS ON QUALITY SEED PRODUCTION OF ONION (Allium cepaL.)

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dc.contributor.advisorRANA, KIRAN
dc.contributor.authorSUJATA, KUMARI
dc.date.accessioned2017-06-14T07:38:41Z
dc.date.available2017-06-14T07:38:41Z
dc.date.issued2014
dc.description.abstractABSTRACT The present investigations entitled “Studies on the effect of bee attractants on quality seed production of onion (Allium cepa L.) were carried out using cv. Palam Lohit. The experiment was laid out in Randomized Block Design (factorial) in the field and Laboratory with three replications of each treatment at Seed Science and Technology, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan (HP) during Kharif 2012-13. The treatments were comprised of spray with Bee Scent @ 2.5%, Bee Scent @ 5%, Bee Scent @ 7.5%, sugar solution @ 5%, sugar solution @ 10%, honey solution @ 1%, honey solution @ 2%, cropbagged without pollinators and crop without any spray (control). The observations were recorded in the field on pollinator fauna of onion, evaluation of bee attractants in attracting the bees, effect of bee attractants on quantitative (number of umblets/umbel, number of seeds/umbel, per cent seed set, per cent deformed seeds, seed yield/plot, seed yield/ha, 1000 seed weight and benefit: cost ratio) and qualitative (germination percentage, SVI-L and SVI-M) parameters of onion seed. The results revealed thatin total 19 insects belonging to 17 genera under 8 families and 3 orders were recorded. Syrphids were dominant insect visitors among various pollinators visited to onion bloom followed by bees and other pollinators. Bee Scent @ 7.5% proved best in attracting the bees, syrphids and other pollinators upto third day. followed by Bee Scent @5% and 2.5%. Bee Scent @ 7.5%, 5% and 2.5% proved equally good with respect to quantitative (number of umblets/umbel, number of seeds/umbel, per cent seedset, per cent deformed seeds, seed yield/plot, seed yield/ha and 1000 seed weight) andqualitative (germination percentage, SVI-L, SVI-M) parameters of onion seed. Therefore on the basis of results, it is suggested that Bee Scent @ 2.5 per cent may be recommended.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810020066
dc.keywordsonion (Allium cepa L.),quality seed production ,effect of bee attractantsen_US
dc.language.isoenen_US
dc.publisherUHF,NAUNIen_US
dc.subSeed Science and Technologyen_US
dc.subjectnullen_US
dc.themeonion (Allium cepa L.),quality seed production ,effect of bee attractantsen_US
dc.these.typeM.Scen_US
dc.titleSTUDIES ON THE EFFECT OF BEE ATTRACTANTS ON QUALITY SEED PRODUCTION OF ONION (Allium cepaL.)en_US
dc.typeThesisen_US
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