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Genetics of rate limiting disease reaction to Alternaria solani in Tomato |
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| Authors: | E. S. Rao A. D. Munshi P. Sinha Rajkumar |
| Affiliation: | (1) Division of Vegetable Science, Indian Agricultural Research Institute, New Delhi, 110012, India;(2) Division of Plant Pathology, Indian Agricultural Research Institute, New Delhi, 110012, India;(3) Division of Vegetable Crops, Indian Institute of Horticultural Research, Hessaraghatta Lake Post, Bangalore, 560089, India |
| Abstract: | A study was conducted to understand the genetics of rate limiting disease reaction to Alternaria solani in tomato. The results from χ2 analysis and Castle Wright estimation revealed that resistance is an oligogenic character controlled by two to few genes. In general, the results for predominant gene effects reveal that both additive and non-additive effects are involved in the inheritance of early blight resistance. The results for predominant gene effects obtained for various crosses studied are discussed along with their implications for improvement of this trait. |
| Keywords: | Alternaria solani Early blight Genetics Resistance Tomato |
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