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Studies on host plant resistance and protease inhibitor in chickpea against pod borer Helicoverpa armigera (Hubner)

KrishiKosh

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Title Studies on host plant resistance and protease inhibitor in chickpea against pod borer Helicoverpa armigera (Hubner)
 
Creator Jaba Jagdish
 
Contributor Agnihotri, Meena
 
Subject inhibitors, chickpeas, insect pests, host plants, pest resistance, pods, boreres, helicoverpa armigera, proteases
 
Description Thesis-PhD
During the course of investigation two pest species were observed viz., H. armigera and T. orichalcea on chickpea. The activity of both pests were ascertained from 11th to 17th and 12th to 16th standard week respectively for 2012-13, 2013-14. The minimal mean egg recorded on ICCV92944 and lowest larval population observed in ICCV07306, ICCV92944 respective years. The T. orichalcea larval population minimal recorded on ICCL86111, ICCV092944, Minimum pod damage in ICCV10, ICCV92944, ICCV97105 respective years. The maximum grain yield of 1491.67, 972.42 kg/ ha was found in ICCV097105, ICCV92944 respective years. The cultivars viz., ICCV92944, ICCV97105 and ICCV10 comes under least and moderately susceptible respectively for category based on damage rating scale of H. armigera. A negative and positive correlation with RH and Max Temp respectively for H .armigera, a positive correlation with sunshine hours with for T. orichalcea. The antibiosis studies in vegetative stage, lower leaf damaging was observed on the ICCV097105, lower weight gain and percent gain in ICCV097105. Antibiosis for podding stage, the lowest pod damage observed in ICCV92944. Lower pod feeding on ICCL86111, ICCV092944, ICCV097105 and ICC14872, lower weight gain recorded on ICCV08108 and lower pupal weight on ICCV 097105.
Highest protein, phenols, flavonoids, and TIA observed in ICPL 86111, ICCL 86111 , ICCV10 , ICCV097105 respectively .The higher gut trypsin activity in larvae fed on L550 and lowest observed in ICCV 92944. Highly significant and negative correlation was observed between pod damage (%) and all major biochemical parameters.The development period of C. chlorideae from egg- larval - adult emergence 18.41days. Male and female survived of 1.8, 2.3 days respectively. The parasitoid is male biased. In sole crop and chickpea-coriender intercropping system, the mean parasitism on larvae recorded 60.61 %; 44.66 % and 76.96 %; 66.67 % respectively for respective years. The progeny sex ratio (M:F) were 11.2:6.90; 6.6:3.2 and 11:9.2; 7.6:6.2 respective years for sole and chickpea – coriander cropping system.
In pest mediated cues experiment, the response of C. chlorideae shown higher towards 2nd instars infested chickpea and major bioactive compound was observed tetracontane. The least response of female H. armigera towards ICCV 92944) with major bioactive repellant compound was Bis (2-Ethylhexyl) Phthalate observed in sample and maximum of H. armigera orientation towards weed Chenopodium album with having higher hexacosane activity in the sample. In bio-pesticides experiment, it was ascertained that, lower incidence pest, pod damage (54.91%) and higher yield (1292 kg/ha) obtained in treatment Chick pea (Jatropha treated) + coriander (NPV treated), so it was considered to be potent treatment against H. armigera.
 
Date 2016-06-10T14:20:06Z
2016-06-10T14:20:06Z
2014-08
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/67176
 
Language en
 
Format application/pdf
 
Publisher G.B. Pant University of Agriculture & Technology, Pantnagar - 263145 (Uttarakhand)