HOST PREFERENCE OF PULSE BEETLE (Callosobruchus maculatus Fabricius) AND IT’S MANAGEMENT IN PIGEONPEA

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dc.contributor.advisorBINDU K., PANICKAR
dc.contributor.authorANANDKUMAR RAJUBHAI, PRAJAPATI
dc.date.accessioned2022-10-18T09:02:53Z
dc.date.available2022-10-18T09:02:53Z
dc.date.issued2022-10-17
dc.description.abstractThe present exploration under the title “Studies on host preference of pulse beetle (Callosobruchus maculatus Fabricius) and it’s management in pigeonpea” was conducted during 2021-22 at Pulses Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar. The host preference study was conducted in the free-choice conditions on nine different pulses viz., chickpea, kidney bean, fieldpea, pigeonpea, mungbean, cowpea, mothbean, horsegram and blackgram. The average number of eggs laid on different pulses ranged from 11.33 to 39.67 eggs per 100 seeds. Significantly lowest number of eggs were laid on horsegram and significantly highest on cowpea. Significantly longest (33.00 days) developmental period was recorded in fieldpea and shortest (23.67 days) in cowpea. Adult emergence was significantly minimum (41.29%) in horsegram. While it was significantly maximum (86.67%) in cowpea. Seed damage was significantly minimum (5.97%) in horsegram and maximum in cowpea (34.33%). Significantly lesser (1.36) growth index was recorded in horsegram and higher (3.66) in cowpea. Thus, among different pulses studied cowpea, mungbean, mothbean and pigeonpea recorded higher adult emergence, shortest developmental period, highest susceptibility index with maximum seed damage indicated most preferred hosts of C. maculatus. While horsegram, chickpea, fieldpea and blackgram seeds were least preferred by C. maculatus under free choice conditions. Whereas, kidney bean was the non-preferred host as none of the adult emerged out. Among the biochemicals, total soluble sugars, total phenol and total tannin content of different pulses showed significant impact on growth parameters and proteins had non significant relationship with growth attributes. High level of total phenol and total tannin were detrimental to the growth and development of C. maculatus. While, high level of total soluble sugars favoured the development of pulse beetle. Thus, cowpea and mungbean proved to be the most preferred hosts with higher sugar content and lower total phenol and total tannin content suitable for beetle development. Abstract II The comparative biology of C. maculatus was studied on cowpea, mungbean, pigeonpea, chickpea and fieldpea under control conditions. The mean incubation period was minimum (4.52 ± 0.51 days) in cowpea and maximum (6.00 ± 0.91 days) in chickpea. The larval duration was minimum (13.76 ± 1.94 days) in cowpea and maximum (19.00 ± 0.91 days) in fieldpea. Pupal duration was minimum (5.68 ± 0.80 days) in cowpea and maximum (9.00 ± 0.82 days) in fieldpea. Minimum total developmental period (23.96 ± 2.23 days) was noticed in cowpea and maximum (33.00 ± 1.89 days) in fieldpea. The ratio of male and female was 1:1.07, 1:0.91, 1:0.88, 1:0.76 and 1:0.89 for cowpea, mungbean, pigeonpea, chickpea and fieldpea, respectively. Life cycle duration was shorter on cowpea (32.12 days) and prolonged in fieldpea (42.84 days). Among different plant powders, black pepper @ 2.5g per 100 g of seed provided cent per cent protection to pigeonpea seeds against the pulse beetle. None of the powders interfere in the germination.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810189107
dc.language.isoEnglishen_US
dc.pages131pen_US
dc.publisherSARDARKRUSHINAGAR DANTIWADA AGRICULTURAL UNIVERSITY - SARDARKRUSHINAGARen_US
dc.research.problemHOST PREFERENCE OF PULSE BEETLE (Callosobruchus maculatus Fabricius) AND IT’S MANAGEMENT IN PIGEONPEAen_US
dc.subAgricultural Entomologyen_US
dc.themeHOST PREFERENCE OF PULSE BEETLE (Callosobruchus maculatus Fabricius) AND IT’S MANAGEMENT IN PIGEONPEAen_US
dc.these.typeM.Scen_US
dc.titleHOST PREFERENCE OF PULSE BEETLE (Callosobruchus maculatus Fabricius) AND IT’S MANAGEMENT IN PIGEONPEAen_US
dc.typeThesisen_US
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