Inheritance of rust resistance in cultivated groundnut (Arachis hypogaea L.)
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Abstract
The present investigation was carried out to study the mode of inheritance of rust (Puccinia arachidis Speg.) resistance in groundnut (Arachis hypogaea L.). Crosses were made between a susceptible (GPBD-5) and three resistant genotypes (GPBD-4,ICGV86699 and ICGV99005). Susceptibility to rust of F1’s in all the three crosses indicated that susceptibility was dominant over resistance. Resistant F2 plants were further crossed to GPBD-5. The second cycle F2 populations segregated into susceptible and resistant categories. The observed frequency of plants in each F2 fitted well into expected ratio of 1 resistant and 3 susceptible with non-significant chi-square values at 5% level indicating that rust resistance in groundnut is determined by a single recessive gene. The F2 results were confirmed by genetic analysis in F3 generation.
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How to Cite
Jakkeral, S. A., Nadaf, H. L., Gowda, M. V. C., & Bhat, R. S. (2013). Inheritance of rust resistance in cultivated groundnut (Arachis hypogaea L.). INDIAN JOURNAL OF GENETICS AND PLANT BREEDING, 73(04), 450–453. https://doi.org/10.5958/j.0975-6906.73.4.069
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Research Article
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