Browsing by Author "Dharmendra Kumar"
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ThesisItem Open Access BIODIVERSITY OF PHYTOPHAGOUS MITES ON CERTAIN CROPS IN EASTERN U.P. AND MANAGEMENT OF BRINJAL MITES(Institute of Agricultural Sciences, Banaras Hindu University, 2015) Dharmendra Kumar; Dr. M. RaghuramanThe present thesis embodies the results of the investigations made on “Biodiversity of phytophagous mites on certain crops in eastern U.P. and management of brinjal mites” which were carried out in 2010 and 2011 An overview of different acaricides/insecticides during both the years revealed that abamectin and dicofol proved to be the most promising pesticides, followed by propargite, emamectin benzoate and hexithiazox. Bifenthrin and spiromesifen could also be able to reduce the mite population up to 14 DAA, followed by indoxacarb. The neem based pesticide, exhibited lower efficacy in bringing down the mite population during both the cropping seasons. Abamectin (1.8 EC) was most effective against the spider mites up to the 14th day (92.24 per cent reduction over control), which was at par with dicofol (18.5 EC) followed by hexithiozox (5.45EC). Azadirachtin 0.05%, spiromesifen (22.9 SC) and indoxacarb (14.75 SC) were not much effective in suppressing the mite population during both the cropping seasons. The maximum of brinjal was realized in the abamectin (1.8 EC) treated plots during both the years (209.00 and 209.67 q/ha, during 2010 and 2011 respectively), followed by dicofol (1.8 EC) with 204.67 and 207.67 q/ha, respectively during 2010 and 2011. On the basis of yield due to different treatments against phytophagous mite, it was found that the efficacy was in the following decreasing order: abamectin >dicofol >emamectin benzoate >hexithiozox >azadirachtin >spiromesifen >bifenthrin >propargite >indoxacarb. The lowest yield was recorded from untreated control (134.50 q/ha). Additional fruit yield was maximum as abamectin >dicofol >emamectin benzoate >hexithiozox and bifenthrin >azadirachtin >propargite >spiromesifen >indoxacarb. And the same as the value of the additional yield also obtained; whereas the maximum net profit was the recorded from abamectin >dicofol >emamectin benzoate >bifenthrin >hexithiozox >azadirachtin >spiromesifen >propargite >indoxacarb, Whereas the benefit cost ratio (B:C) was as recorded maximum from the azadirachtin >dicofol >bifenthrin >hexithiozox >abamectin emamectinbenzoate >spiromesifen >propargite >indoxacarb were recorded during both the years.ThesisItem Open Access An Economic Analysis of Wheat Cultivation of Banda District in Bundelkhand Region (Uttar Pradesh)(Banda University of Agriculture & Technology, Banda 210001, Uttar Pradesh, India, 2022-07-27) Dharmendra Kumar; Rai, Rahul KumarThesisItem Open Access EFFECT OF LEVELS AND SOURCES OF SULPHUR ON GROWTH, YIELD AND NUTRIENT REMOVAL OF INDIAN MUSTARD [Brassica juncea (L.) Czern and Cosson.] VARIETIES UNDER IRRIGATED CONDITION(Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 2015) Dharmendra Kumar; Dr. Jainendra Kumar SinghThe present field experiment entitled “Effect of levels and sources of sulphur on growth, yield and nutrient removal of Indian mustard [Brassica juncea (L.) Czern. and Cosson.] varieties under irrigated condition was carried out at Agricultural Research Farm, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi during winter (rabi) season of 2014-15. The experiment was carried out with three mustard varieties viz. ‘Maya,’ ‘Giriraj’ and ‘NRCHB-506’ three levels of sulphur (0 kg S, 30 kg S and 60 kg S ha-1) and two sources of sulphur Elemental sulphur (80% WDG) and Bentonite sulphur (90% G ) was laid out in a split-split plot design with three replications. Growth and yield attributes and yield viz. plant height (cm), dry matter production, number of branches plant-1, number of green leaves plant-1, leaf- area index, number of siliquae plant-1, siliquae per main shoot, siliqua length, seeds siliqua-1, 1000-seed weight, seed yield (kg ha-1), stover yield (kg ha-1) and harvest index (%), quality parameters viz. seed oil content (%) and nutrient removal (N, P and S) by seed and stover (kg ha-1) were recorded and finally the comparative economics of various treatments was computed. The maximum values of growth as well as yield parameters and yield of Indian mustard crop were recorded with the variety ‘Giriraj’. Marked improvement in growth and yield traits and seed yield of mustard were observed due to increasing level of sulphur up to 60 kg ha-1. However, application of 30 kg S ha-1 exhibited appreciable improvement in growth and yield attributes as well as seed yield of Indian mustard. Application of sulphur through elemental sulphur was found to increased the yield of mustard, removal of sulphur and improve the quality traits viz. oil and seed protein content. Based on the experimental findings it is recommended that Indian mustard variety ‘Giriraj’ with no sulphur proved that most remunerative for achieving higher monetary return in eastern Uttar Pradesh under irrigation condition.ThesisItem Open Access EVALUATION OF COMPATIBILITY AND SENSITIVITY OF SOME NEMATODE-TRAPPING FUNGI TO COMMON FUNGICIDES(BANDA UNIVERSITY OF AGRICULTURE & TECHNOLOGY, BANDA-210001, UTTAR PRADESH, INDIA, 2023-08-09) ALI KHAN; Dharmendra KumarNematode-trapping fungi are potential bio control agent of the plant parasitic nematode. The management of plant parasitic nematode are completely relied on chemicals which are toxic to the environment and human health. Therefore, introduction of bioagents in agriculture system is important, provided the introduced bio-agent are compatible with chemicals fungicides. In present investigation, four species of nematode trapping fungi were isolated and their nematophagous potential against Meloidogyne incognita and their compatibility against ten common fungicides were tested. All the nematode-trapping fungi were found potential against Meloidogyne incognita which captured and killed the J2 between 60 to 75% on 5th days of nematode inoculation. Compatibility test of nematodetrapping fungi with common 10 fungicides indicate that all nematode-trapping fungi were found most toxic to Propiconazole and Hexaconazole followed by mancozeb, carbendazim, propineb and metalaxyl. These fungi were found tolerant to Sulphur and copper oxychloride even at 200 ppm. The spores of nematode-trapping fungi were found tolerant to toxic effect of fungicides in comparison to the mycelial growth of nematode trapping fungi. The spores of these fungi were found tolerant up to 10 ppm of mancozeb, chlorothalonil and Propiconazole but completely inhibited at 25 ppm concentration. All the nematode-trapping fungi there found tolerant to Hexaconazole and carbendazim up to 25 ppm but completely killed at 50 ppm concentration. Propineb kill the spore germination of all the nematode trapping fungi between 25-75 ppm The spore of nematode-trapping fungi was found tolerant to copper oxychloride and Sulphur up to 300 ppm but completely killed at 400 ppm concentration. The study indicate that nematode-trapping fungi are sensitive to range of chemicals at different concentration but spores of these fungi are more tolerant in compression to the mycelium of these fungi. Nematode-trapping fungi used in this study could be integrated with some fungicides (Sulphur and Copper oxychloride) in the IPM programme of Integrated pest management.ThesisItem Open Access EXPLORATION OF NEMATOPHAGOUS AND MYCOPARASITIC POTENTIAL OF NATIVE STRAINS OF NEMATODE TRAPPING FUNGI OF BUNDELKHAND REGION AGAINST SOME PLANT PATHOGENS(BANDA UNIVERSITY OF AGRICULTURE & TECHNOLOGY, BANDA-210001, UTTAR PRADESH, INDIA, 2023-08-09) ABHAY PRATAP SINGH; Dharmendra KumarThesisItem Open Access Physiological Variability In Fieldpea (Pisum Sativum L.) Genotypes(CSA University of Agriculture and Technology;Kanpur, 2003) Dharmendra Kumar; Singh, S.P.