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Subject: Plant Pathology ×

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Now showing 1 - 9 of 199
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    ThesisItemOpen Access
    STUDIES ON CITRUS CANKER INCITED BY Xanthomonas citri pv. citri AND ITS MANAGEMENT
    (DEPARTMENT OF PLANT PATHOLOGY B. A. COLLEGE OF AGRICULTURE ANAND AGRICULTURAL UNIVERSITY ANAND, 2021) SUTHAR YOGENDRA M.; Dr. H. N. PRAJAPATI
    In India, Citrus is one of the major grown fruit crop after banana and mango which is known for its high nutritive and refreshing value, distinct aroma, delicious taste and also for its medicinal properties. Among all the diseases that attacks citrus crops, citrus canker caused by Xanthomonas citri pv. citri is one of the most devastating disease and of great economic importance. The initial symptoms appeared on leaves in the form of lesions as dark green and later become thickened brown and corky which become raised and blister-like, growing into white or yellow spongy pustules.
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    ThesisItemOpen Access
    STATUS OF SEED MYCOFLORA OF CHICKPEA CULTIVARS AND THEIR IN VITRO MANAGEMENT
    (DEPARTMENT OF PLANT PATHOLOGY B. A. COLLEGE OF AGRICULTURE ANAND AGRICULTURAL UNIVERSITY ANAND, 2021) ROSHAN JOY D CUNHA; Dr. R. G. PARMAR
    Chickpea (Cicer arietinum L.), is the third most important pulse crop in the world, also known as “King of pulses”. Its significant contribution towards nutritional security as well as soil fertility management accomplished its extensive cultivation worldwide. Quality of seeds plays a crucial role in the production of healthy crop. Seed-borne pathogens are responsible for discolouration and deterioration of seeds, reduction in viability, germination and vigour and produce abnormal seedlings. It also serves as a vehicle for transmitting plant pathogens into new areas resulting in a serious disease outbreak hampering the plant growth and productivity.
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    ThesisItemOpen Access
    CHARACTERIZATION OF Fusarium oxysporum f. sp. cumini (Schlecht) Prasad and Patel CAUSING WILT OF CUMIN AND ITS IN VITRO MANAGEMENT
    (DEPARTMENT OF PLANT PATHOLOGY B. A. COLLEGE OF AGRICULTURE ANAND AGRICULTURAL UNIVERSITY, 2021) Patel Sonal S.; Dr. R. G. Parmar
    Cumin (Cuminum cyminum L.) is an important seed spice crop. It belongs to the family Apiaceae or Umbelliferae and is native of the Mediterranean and Near Eastern regions. It is an important spice used in Indian kitchens for flavouring various food preparations. This crop suffers from many fungal diseases, among them wilt caused by Fusarium oxysporum f. sp. cumini is an important disease in cumin. Wilt of cumin is found throughout cumin producing areas and causes the severe damage during at all stage of the crop growth with greatest yield losses up to 80 per cent in severe conditions.
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    ThesisItemOpen Access
    VARIABILITY AMONG THE ISOLATES OF Pythium aphanidermatum (EDSON) FITZP. INCITING DAMPING-OFF OF BIDI TOBACCO AND ITS IN VITRO MANAGEMENT
    (DEPARTMENT OF PLANT PATHOLOGY B. A. COLLEGE OF AGRICULTURE ANAND AGRICULTURAL UNIVERSITY ANAND, 2021) PATEL PARTH D.; Dr. Y. M. ROJASARA
    Tobacco (Nicotiana tabacum L.) is one of the world's most important non-food crop of the solanaceae family. Tobacco is now a significant commercial crop in terms of revenue generation, export earnings, and employment. Gujarat ranks second in area (1.74 lakh ha.) and production (5.19 lakh ton) which is spread over the major tobacco growing districts include Anand, Kheda, Vadodara, Mehsana, Banaskantha, Sabarkantha, Patan, Gandhinagar, Mahisagar, Aravalli and Ahmedabad. Among all the disease of tobacco, damping-off caused by Pythium aphanidermatum is most serious disease in nursery. Looking to the seriousness of the disease and economic importance of the crop in Gujarat, the present investigations were thus carried out to study the behaviour of the disease/pathogen, cultural, morphological and molecular variability among the isolates, in vitro evaluation of fungicide and bio-agent against the P. aphanidermatum.
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    ThesisItemOpen Access
    MOLECULAR CHARACTERIZATION AND IN VITRO MANAGEMENT OF CURVULARIA LEAF SPOT DISEASE OF MAIZE
    (DEPARTMENT OF PLANT PATHOLOGY B. A. COLLEGE OF AGRICULTURE ANAND AGRICULTURAL UNIVERSITY, ANAND, 2021) Parmar Mehul G.; Dr. Puja Pandey
    Maize (Zea mays L.) is the world’s leading crop and is widely cultivated as cereal grain that was domesticated in Central America. It is one of the most versatile emerging crops having wider adaptability. Globally, maize is known as queen of cereals because of its highest genetic yield potential. In Gujarat, major maize-growing areas are Panchamahal, Arrvali, Dahod, Sabarkantha, Banaskantha and part of Vadodara and Kheda districts, Among the all diseases of maize, curvularia leaf spot disease caused by Curvularia lunata is a new emerging disease which is widely distributed and highly destructive in maize growing region.
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    ThesisItemOpen Access
    STATUS OF SEED MYCOFLORA OF SOYBEAN CULTIVARS AND THEIR IN VITRO MANAGEMENT
    (DEPARTMENT OF PLANT PATHOLOGY B. A. COLLEGE OF AGRICULTURE ANAND AGRICULTURAL UNIVERSITY ANAND, 2021) GUNDARANIYA DIPAK G.; Dr. R. G. PARMAR
    Soybean (Glycine max L.) known as miracle crop due to their quality protein and oil. There are five agro-climatic zones for soybean cultivation in India these are northen hill zone, northen plain zone, north eastern zone, central zone and southern zone. It contains 43.20 % protein and 19.50 % oil. The oil of soybean is high in polyunsaturated fatty acids and used in the production of soaps, ghee, printing inks, chocolates, surface coating varnishes, paints and lubricants. Soybean suffers from several diseases caused by bacteria, fungi, viruses, nematodes and physiological disorders. The poor seed yield, quality and quantity of soybean is due to a number of causes but seed borne infections are one of the most important factors among them. Major seed borne fungi includes Alternaria alternata, Aspergilllus flavus, A. niger, Cercospora kikuchi, Chaetomium globosum, Curvularia lunata, Colletotrichum dematium, Fusarium oxysporum, Penicillium spp., Macrophomina phaseolina and Rhizopus stolonifer.
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    ThesisItemOpen Access
    STUDIES ON THE LEAF BLAST OF RICE CAUSED BY PYRICULARIA ORYZAE AND ITS MANAGEMENT
    (DEPARTMENT OF PLANT PATHOLOGY B. A. COLLEGE OF AGRICULTURE ANAND AGRICULTURAL UNIVERSITY ANAND, 2021) DEEP NARAYAN MISHRA; Dr. R. K. GANGWAR
    Rice (Oryza sativa L.) is the world’s most important staple food crop. It is the primary source of energy for over half of the world people. It is a nutritional food which provides instant energy as its most important component is carbohydrates (starch). But the rice crop is prone to various types of abiotic and biotic stresses. Among the biotic stresses rice blast caused by P. oryzae is the most important pathogen which also affect the other graminaceous hosts. The pathogen can attack at any stage of the crop development, from germination to harvest. Seedling blight, leaf blast, node blast, neck blast, and grain spot are all signs of the disease.
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    ThesisItemOpen Access
    EPIDEMIOLOGY AND MANAGEMENT OF FOLIAR DISEASES OF Bt COTTON
    (DEPARTMENT OF PLANT PATHOLOGY B. A. COLLEGE OF AGRICULTURE ANAND AGRICULTURAL UNIVERSITY, ANAND, 2021) Chavda Nikunj S.; Dr. N. M. Gohel
    Cotton, “The White Gold” or the “King of Fibres” enjoys a pre-eminent status among all cash crops in the country and is the principal raw material for the flourishing textile industry. It provides livelihood to about sixty million people and is an important agricultural commodity providing remunerative income to millions of farmers both in developed and developing countries. Among the foliar diseases of Bt cotton Alternaria leaf spot caused by Alternaria alternata (Fr.) Keissler and bacterial blight caused by Xanthomonas citri pv. malvacearum (Smith) Dye are widely distributed and highly destructive. The Alternaria leaf spot and bacterial blight diseases are now becoming major foliar diseases in Bt cotton-growing regions of Gujarat and damaging the foliage to a greater extent.
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    ThesisItemOpen Access
    EPIDEMIOLOGY AND MANAGEMENT OF ROOT ROT [Macrophomina phaseolina (Tassi) Goid.] OF DESI COTTON (Gossypium herbaceum L.)
    (DEPARTMENT OF PLANT PATHOLOGY B. A. COLLEGE OF AGRICULTURE ANAND AGRICULTURAL UNIVERSITY, ANAND, 2020) Patel Sanket V.; Dr. N. M. Gohel
    Cotton is a globally important crop used for both its natural fiber and seed. Cotton, “The White Gold” or the “King of Fibers” enjoys a pre-eminent status among all cash crops in the country. In Gujarat, cotton growing areas are divided in to four well-defined zones based on agro-climatic conditions among that the desi cotton grown specifically in Wagad cotton zone, which is spread over seven lakh hectares in six districts viz., Ahmedabad, Surendranagar, Patan, Kutch, Morbi and Botad. Among the diseases of cotton, root rot caused by Macrophomina phaseolina (Tassi) Goid. is widely distributed and highly destructive right from the seedling stage or after wood formation stage of crop causing up to 90 per cent or more disease incidence infield resulting in heavy yield losses. To overcome such issues, biological control is one of the best, low-cost and ecologically sustainable methods for managing plant diseases caused by soil-borne pathogens.