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Balai, Laxman Prasad
- Biochemical Constituents Of Alternaria Blight of Pathogens in Pigeonpea
Abstract Views :272 |
PDF Views:4
Authors
Affiliations
1 ICAR-CAZRI, Krishi Vigyan Kendra, Pali-Marwar (Rajasthan), IN
2 Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi (U.P.), IN
1 ICAR-CAZRI, Krishi Vigyan Kendra, Pali-Marwar (Rajasthan), IN
2 Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi (U.P.), IN
Source
Asian Journal of Bio Science, Vol 12, No 1 (2017), Pagination: 1-7Abstract
The common biochemical constituents like chlorophyll and carotenes are important in imparting resistance to the crop plants. Distinct variation in chlorophyll content of pigeonpea leaves of a set of twelve genotypes which were inoculated with representatives ten isolates. In the chlorophyll 'a', chlorophyll 'b', total chlorophyll and carotene content have recorded in higher amounts in resistant genotypes (ICP-7220, IPA-7-2) followed by moderately resistant (ICP-13174 and DA-11) and moderately susceptible (ICP-11294 and ICP-4725), whereas lower amount susceptible (BSMR-736 and ICP-7182) genotypes and highly susceptible genotypes (MAL-24, Bahar). The maximum chlorophyll and carotene content were found in resistant genotypes at early stage of plants with minimum reduction whereas, lowest content was found in susceptible genotypes old plants with highest reduction. It showed same trend in a-virulent isolates in which lowest reduction chlorophyll and carotenes content were found as compared to virulent (aggressive) isolates.Keywords
Genotypes, Resistance, Isolates, Alternaria, Chlorophyll, Carotene.
References
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- Evaluation of Resistance for Early Blight Caused by Alternaria solani (Ellis and Martin) Sorauer in Tomato
Abstract Views :248 |
PDF Views:1
Authors
Affiliations
1 Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi (U.P.), IN
2 Division of Crop Improvement, Indian Institute of Vegetable Research, Varanasi (U.P.), IN
3 ICAR, CAZRI, KrishiVigyan Kendra, Pali (Rajasthan), IN
1 Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi (U.P.), IN
2 Division of Crop Improvement, Indian Institute of Vegetable Research, Varanasi (U.P.), IN
3 ICAR, CAZRI, KrishiVigyan Kendra, Pali (Rajasthan), IN
Source
Asian Journal of Bio Science, Vol 12, No 2 (2017), Pagination: 87-99Abstract
A trial was conducted during Rabi season 2011-2012 under field conditions for phenotyping of germplasm under natural conditions that have been developed for resistance against early blight of tomato caused by Alternaria solani. Field studies showed significant variation among all tested germplasmlines with respect to early blight disease assessment. Under field conditions the natural disease severity was scored on a five-point scale (0-5).The per cent disease index (PDI) and area under disease progress curve (AUDPC) value were calculated on the basis of data recorded. The mean AUDPC value in resistant (206 lines); moderately resistant (223 lines); moderately susceptible (129 lines) and susceptible (143 lines) tomato lines ranged between 102.00 to 447.25; 447.26 to 792.50; 792.51 to 1137.75 and 1137.76 to 1483.00, respectively.Keywords
Alternaria solani, Tomato, Natural Inoculums, Phenotyping, Resistant, AUDPC.References
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