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M. Sc. Dissertations

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2007 - 200922010 - 20154
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Author: Rajesh Kumar × End date: 2016 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Role of organic manures in combination with inorganic fertilizer in tomato production cv Hisar Arun
    (CCSHAU, 2007) Rajesh Kumar; Batra, B.K.
    The present investigation entitled Role of organic manures in combination with inorganic fertilizers in tomato production Cv. Hisar Arun was conducted during spring summer Season of 2006-07 at Vegetable Research farm and Laboratory of CCS Haryana Agricultural University Hisar to find out the effect of organic manures and inorganic fertilizers on growth yield and quality of tomato. The experiment was laid out in a Randomized block design in tree replication having thirteen treatments. The observations were recorded on Vegetative growth flowering, yield and fruit quality. Each treatment and replicated three times in plot having area 3 x 2.7 m2. The results indicated that organic manures and inorganic fertilizer was marked effect on growth and yield parameters. The yield attributing characters like number of fruits/ plant, Average fruit weight, yield /plant and yield (q/ha). Were maximum with the application of 17.5t FYM +50% RDF. Among the quality parameters like pericarp thickness, lycopene, total soluble solids, ascorbic acid (mg/100%), acidity (%) were also significant influenced by the combination of organic manures and inorganic fertilizers
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    ThesisItemOpen Access
    Studies on powdery mildew of fenugreek caused by erysiphe polygoni DC
    (CCSHAU, 2009) Rajesh Kumar; Mehra, Rakesh
    The Studies on powdery mildew of fenugreek caused by Erysiphe polygoni DC" were conducted in the Departments of Plant Pathology and Vegetable Science, CCS Haryana Agricultural University, Hisar during winter (rabi) season of 2008-09. The experiments were laid out in RBD in field and CRD in lab conditions. Powdery mildew of fenugreek generally occurs during flowering and pod formation stage in severe form. Seed yield losses due to powdery mildew varied between 18.8 and 20.4 per cent in variety Hisar Sonali and 19.4-22.5 per cent in variety Hisar Suvarna in both greens cutting and non greens cutting under unprotected conditions. Out of 118 germplasm lines/varieties of fenugreek screened against powdery mildew under field and screen house conditions, none was found highly resistant. Only two genotypes namely NDM-1 and RMt-351 were found resistant under field conditions. However, under screen house conditions these genotypes were moderately resistant. Four genotypes viz., Am-187, HM-273, Local Hisar-3, NDM-9 were moderately resistant both under field and artificial inoculation conditions. Out of five dates of sowing early sown (4th October) and late sown (5th December) crop showed less disease severity as compared to 19th October, 4th November and 20th November sown crop. Maximum disease severity was in the crop sown on 4th November in Hisar Sonali, Hisar Suvarna and HM-65 varieties. Among the five varieties highest disease severity was observed in Hisar Sonali variety and lowest disease severity on variety HM-350 on all the dates of sowing. Maximum temperature range of (23.8-31.7 oC) and minimum of (7.9-14.6 oC), relative humidity morning (91.4–86.9%) and evening (53.3–38.1 %) were most congenial for the disease progression. Regression equations on relationship between disease development and weather parameters have been developed for five varieties. Among the seven plant extracts evaluated against Erysiphe polygoni, neem, ginger and garlic extracts were effective both under in vitro and in vivo conditions, however, the efficacy was comparatively less in comparison to fungicides which provided more than 95 per cent disease control. Out of eight fungicides evaluated hexaconazole, propiconazole and dinocap provided disease control around 99 per cent and also increase seed yield significantly.
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    ThesisItemOpen Access
    Tissue culture studies in Alfalfa (Medicago sativa Linn.)
    (CCSHAU, 2011) Rajesh Kumar; Kharb, Puspha
    In the present investigation attempts were made to develop an efficient protocol for in vitro plant regeneration in Medicago sativa L. Initiation of callus formation from hypocotyl explants was observed within 13-15 days of culture. Initiation of callus formation from cotyledons explants was observed within 13-15 days of culture. Maximum callus formation was obtained in R3 medium containing MS basal + NAA (1.0 mg/l) + Kinetin (0.3 mg/l). Maximum number of shoots was obtained in R12 medium containing MS basal + NAA (1.0 mg/l) and Kinetin (0.5mg/l). MS basal medium was used for roots induction, roots were observed after 14 days with very good quality.In media R2 (MS basal + NAA 0.1mg/l + 2 IP 1.0 mg/l) and R8 (MS basal +NAA 2.0 mg/l), when shoots were left little longer rooting occurred. After transplantation, 73.3% plants survived and these plants looked normal with no morphological changes in leaf structure and plant type.Thus in the present study, regeneration protocol in Medicago sativa L variety T9 has been developed using hypocotyls and cotyledon explants.
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    ThesisItemOpen Access
    Evaluation of entomopathogenic nematodes against Plutella xylostella (L.) on cabbage
    (CCSHAU, 2011) Rajesh Kumar; Ram Singh
    Present investigation on “Evaluation of entomopathogenic nematodes against Plutella xylostella (L.) on cabbage” was carried out in laboratory and screen-house. The investigation focused on the selection of appropriate indigenous strain of EPN, its application as foliar spray and its compatibility with currently used insecticides and Bt against Plutella xylostella on cabbage. EPN isolates (Steinernema asiaticum, Steinernema sp. RB-5 and Heterorhabditis bacteriophora) were used to know the effectiveness against P. xylostella. Third instar larvae of P. xylostella were susceptible to all three EPNs isolates. Steinernema sp. (RB-5) was least virulent (larval mortality 15.62%) after 96h whereas highest virulence was observed in S. asiaticum (larval mortality 65.62%) at 20±1ºC. Nematode multiplication (no. of IJs recovered per larva) was recorded highest (1226) in S. asiaticum. On the basis of highest mortality and maximum nematode multiplication S. asiaticum was selected for further studies on its pathogenic potential, compatibility with insecticides, effect of temperature on its growth and development, and its efficacy against P. xylostella as foliar spray. LC50 value of S. asiaticum was worked out to be 11.2 by using Probit analysis. At 20 and 25 ˚C, S. asiaticum caused 45 and 80 per cent mortality after 96 h. S. asiaticum caused significant insect mortality even at the high temperatures. S. asiaticum was effective within 20-35 °C, with optimum insect mortality at 30 °C. Nematode multiplication was maximum at 30 °C. Maximum IJs recovery was at 30 (279) and 35˚C (228). Maximum nematode growth and development took place at 35 °C. S. asiaticum was compatible with endosulfan, malathion and Bt and it can be incorporated in the IPM programme for management of P. xylostella. Split application (15000 + 15000 IJs) of S. asiaticum IJs proved better and resulted in 48.33 per cent mortality as compared to single dose (30,000) that caused 36 per cent mortality.
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    ThesisItemOpen Access
    Effect of planting time on growth, yield and quality of bt cotton (gossypium hirsutum L.) genotypes
    (CCSHAU, 2012) Rajesh Kumar; Bhattoo, M.S.
    A study entitled, Effect of planting time on growth, yield and quality of Bt cotton (Gossypium hirsutum) genotypes , was conducted at CCS, Haryana Agricultural University, Cotton Research Station, Sirsa during Kharif 2011. The soil of experimental field was sandy loam in texture and slightly high in pH. Soil tested low in organic carbon and available nitrogen, medium in available phosphorus and high in available potassium. The experiment was conducted in split plot design with three replications. The combination of four dates of sowing viz. D1=3rd week of April (20th April), D2=1st week of May (6th May), D3=3rd week of May (18th May) and D4=1st week of June (6th June) were kept in main plots and three genotypes viz., V1= RCH 134, V2= NCS 855 and V3= Bio 6488 were kept in sub plots. Maximum plant height and dry matter was recorded at 3rd week of May sowing. Maximum sympods, number of bolls, yield plant-1, seed cotton yield and lint yield ha-1 were recorded in early sowing (D1 and D2) which were significantly higher than late sowing (D3 and D4). Plant height was highest in NCS 855 but the dry matter production was significantly higher in RCH 134. Sympods, number of bolls, yield plant-1, seed cotton yield and lint yield ha-1 were significantly higher in NCS 855 than RCH 134 but it was statistically at par with Bio 6488. All the fibre quality parameters were not affected significantly by dates of sowing except fibre strength which was found better in late sowing. Uniformity ratio and fibre fineness were found better in RCH 134 than other two genotypes but the span length was superior in NCS 855. Significantly higher protein content (%) in cotton seed was recorded in D3 than all other sowing dates. However, oil content (%) was recorded significantly higher in D1 and D2 than D3 and D4. Genotype RCH 134 recorded significantly higher oil and protein content than Bio 6488 and NCS 855. Early sowing had a significant effect on available N, P and K (kg ha-1) in the soil. Availabe N (kg ha-1) was found more in RCH 134 sown field in 0-15 cm soil depth and in Bio 6488 in 15-30 cm depth but the available phosphorus and potash (kg ha-1) was highest with significant differences in Bio- 6488 and NCS 855, respectively. Sowing on 3rd week of April resulted in higher total cost of cultivation, gross returns, net returns and B:C ratio than all other sowing dates. NCS 855 genotype produced higher cost of cultivation, gross returns, net returns and B:C ratio as compared to other genotypes.
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    ThesisItemOpen Access
    Effect of potassium application on yield and nutrient uptake by Bt cotton
    (CCSHAU, 2015) Rajesh Kumar; Jakhar, Devender Singh
    A field experiment was carried out at the farm of Krishi Vigyan Kendra, Sirsa during kharif 2014 to study the effect of K application on yield and nutrient uptake by Bt. Cotton. The soils at two experimental sites were sandy loam in texture, slightly alkaline in reactions, low in organic carbon and nitrogen, medium in phosphorus with medium to high potash levels. There were seven treatments based on different K levels viz. T 1 - N175 P 60 , T2 - N175 P 60 + Water Spray, T 3 - N175 P 60 + 1% foliar spray of KNO 3 , T4 - N175 P 60+ K 30 , T5 - N175 P 60+ K 30+1% foliar spray of KNO 3 , T6 - N175 P 60+K 60 and T 7 -N175 P 60+K 60+ 1% foliar spray of KNO3. Potash was applied through soil application and foliar spary which were done at the time of peak flowering and boll development stages. The number of boll/plant and boll weight increased with application of K in all the treatments in both soils where as the ginning over turn and harvest index remained unaffected. The mean seed cotton yield was higher in High K fertility soil as compare to Medium K fertility soil. The seed cotton yield increased significantly in the high K fertility soil up to the treatment T4 (N175 P 60 + K 30). Which indicated that in the high K fertility soils, application of potassium at the rate of 30 kg/ha is sufficient of optimizing the seed cotton yield. However, in the medium K fertility soil, the highest seed cotton yield was obtained in the treatment where the recommended doses of N, P and K was applied along with two foliar spray of 1% KNO3. The nitrogen and potassium concentration in different plant parts significantly affected by the potassium application and available potassium in the soil, whereas the phosphorus concentration was not affected. The mean highest N,P and K uptake was obtained in the treatment where two foliar spray of KNO 3 was applied along with recommended doses of nitrogen phosphorus and potassium. The NPK uptake followed the order Seed>stem>Khokri>leaves. The dry matter yield of different plant parts was significantly affected by potassium application and available potassium status in the soil. The post harvest available N status in the soil decreased as compared to its initial level. However, a slight increase in available P and K was observed in plots where soil application of K was done.