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ThesisItem Open Access Evaluation Of Bitter Gourd Genotypes For Resistance To Melon Fruit Fly Bactrocera Cucurbitae (Coquillett)(Chaudhary Charan Singh Haryana Agricultural University; Hisar, 2007) Singh, Virendra; Chhillar, B.S.ThesisItem Open Access Investigations On Chilo Partellus (Swinhoe) Resistance In Maize (Zea Mays L.)(Chaudhary Charan Singh Haryana Agricultural University; Hisar, 2007) Lokesh; Mahla, J.C.ThesisItem Open Access Laboratory evaluation of transgenic Bt cotton against helicoverpa armigera (Hubner) and spodoptera litura (Fabricius)(CCSHAU, 2007) Basavaraja H.; Chhillar, B.S.Studies on the “Laboratory evaluation of transgenic Bt cotton against Helicoverpa armigera (Hubner) and Spodoptera litura (Fabricius)” were carried out in the laboratory and at Research Farm, Department of Entomology Chaudhary Charan Singh Haryana Agricultural University, Hisar, during kharif 2006. Eleven genotypes including five Bt (Ankur 2534 Bt, Ankur 651 Bt, RCH 134 Bt, RCH 317 Bt and MRC 6304 Bt) and their corresponding non-Bt hybrids with one local hybrid HHH-223 were taken for the study and they were grown by adopting recommended package of practices. The survival of first instar larvae of H. armigera was observed on top leaves, middle leaves, squares and bolls for five days at an interval of 60, 90, 100, 120 and 140 days of crop age. Significant adverse effect of Bt was observed at 60, 90 and 100 days of crop age in top leaves, middle leaves, squares and bolls. The maximum per cent reduction in survival of larvae was observed at 60 days of crop age in top leaves (16.67-76.67 %), middle leaves (13.33-86.67 %), squares (26.67-86.67 %) xivand bolls (30.00-86.67 %). Similar trend followed at 90 and 100 days of crop age. No significant effect of Bt at 120 and 140 days of crop age was observed in comparison to non-Bt. The various biological parameters (larval period, larval weight, larval survival, pupal period, pupal weight and adult emergence) of H. armigera larvae from third instar onwards were studied on top leaves, middle leaves, squares and bolls at an interval of 65, 95, 105, 125 and 145 days of crop age. Significant adverse effect of Bt was observed at 65, 95 and 105 days of crop age in top leaves, middle leaves, squares and bolls. At 125 and 145 days of crop age no significant effects of Bt were observed. The various biological parameters of S. litura larvae from first instar onwards were studied on top leaves and middle leaves at an interval of 80, 120 and 140 days of crop age. No significant difference between Bt and non-Bt hybrids were observed. Fourth instar larvae of H. armigera were used to study various consumption-utilization indices at an interval of 70, 100 and 130 days of crop age in top leaves, middle leaves, squares and bolls. There was significant reduction in CI, GR, ECI, AD/AE and ECD in Bt genotypes at 70 and 100 days of crop age for H. armigera. At 130 days of crop age no significant effect of Bt was observed. Similarly fourth instar larvae of S. litura were used to study various consumption-utilization indices at an interval of 75, 105 and 135 days of crop age in top leaves and middle leaves. There was no significant reduction in CI, GR, ECI, AD/AE and ECD in Bt genotypes at 75, 105 and 135 days of crop age for S. litura. Twigs of different genotypes bearing leaves, flowers, squares and bolls were brought to the laboratory at 80 days of crop age to observe the ovipositional preference of H. armigera between Bt and non-Bt genotypes in a choice test conditions. No significant variation was found between Bt and non-Bt genotypes for oviposition studies. The total number of eggs laid on Bt and non-Bt hybrids ranged from 344 to 361 eggs/2 twigs/4 females.ThesisItem Open Access Efficacy of various grain protectants against pulse beetle, callosobruchus chinensis (L.) infesting pigeonpea, cajanus cajan (L.) Millsp(CCSHAU, 2007) Vijaykumar Jangamashetti; Singal, Shiv K.Pigeonpea Cajanus cajan (L.) Millsp. is one of the most important pulse crop cultivated in India. It is next only to chickpea in area and production among all the pulse crops grown in India. Pulses also constitute the main source of protein in developing countries like India, where per capita consumption of animal protein is very low. Pulses can be stored for considerable periods of times after harvest but during storage they may be attacked by various insect species. Among these the most important one is pulse beetle, Callosobruchus chinensis (L.) mainly in pigeonpea. Synthetic pesticides played a significant role in restricting problems and were also cost effective. However, these chemical insecticides pose several problems like residual toxicity and health hazards to the consumers as well as users. The present investigations were carried out to study the effectiveness of grain protectants i.e. neem seed kernel powder @ 20g/kg, neem oil @ 10ml/kg, mustard oil @ 7.5 ml/kg, groundnut oil @ 7.5 ml/kg, turmeric powder @ 3.5g/kg, mustard oil + turmeric powder @ 3.75 ml + 1.75 g/kg, groundnut oil + turmeric powder @ 3.75 ml + 1.75g/kg, saw dust (7cm covering), sand (7cm covering), dung cake ash (7cm covering) and wheat husk (7cm covering) against C. chinensis and their effect on quality of pigeonpea seed variety Manak. There were a total of 12 treatments and each treatment was replicated thrice including untreated seeds as control and kept in plastic jars. All the grain protectants except wheat husk, neem seed kernel powder and turmeric powder proved to be more effective as compared to untreated control for causing mortality of C. chinensis adults. As the storage periods of treated seed increased, the mortality of adults decreased. All the grain protectants except wheat husk and neem seed kernel powder proved to be most effective as compared to untreated control in reducing number of egg laid after 1, 45, 90 and 135 days of storage, respectively. On the basis of number of adult emergence and per cent seed damage, all the grain protectants except three protectants i.e. neem seed kernel powder, turmeric powder and wheat husk treatments were highly effective and no adult emerged from saw dust, sand, dung cake ash and neem oil treatments at all storage intervals of 1, 45, 90 and 135 days of storage. This group followed by mustard oil + turmeric powder, groundnut oil + turmeric powder, mustard oil and groundnut oil proved to be the most effective and next effective group of grain protectants, respectively. None of the treatments had any adverse effect on standard germination which was above the prescribed Indian seed certification standards for pigeonpea seeds. Dung cake ash and turmeric powder treatments had adverse effect on seedling vigour index when compare to all other treatments.ThesisItem Open Access Present Scenario of Insect Pests of Soybean in Mewar-Vagar Region of Rajasthan and their Management(Department of Agricultural Zoology and Entomology, Rajasthan College of Agriculture: Udaipur, 2007) Kumawat, Madan Mohan; Kumar, AshokThesisItem Open Access Investigation on the Population Dynamics, Estimation of Losses and Management of Major Insect Pests of Soybean [Glycine max (L.) Merill.](Department of Agricultural Zoology and Entomology, Rajasthan College of Agriculture: Udaipur, 2007) Padiwal, Narendra Kumar; Rana, B. S.