Selection and identification of high yielding transgressive segregants in button mushroom
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Present study is an attempt for the genetic improvement of commercially important white button mushroom through quantitative genetics. Systematic and continuous breeding programme is the critical for enhancing crop productivity. Among the cultivated edible mushrooms, white button mushroom occupies fourth prominent place in terms of production across the global.SSIs of high yielding non browning hybrid strain NBS-5 was selected for the study. A total number of 191 single spore isolates were isolated from the strain and evaluated under controlled conditions for the selection of segregants in the F2 generation. Analysis of variance indicated significant differences among all the genotypes for yield and yield related traits. Genetic analysis showed significant influence of the growing environment on the expression of different traits. High heritability coupled with high genetic advance was observed for the average fruit body weight and stipe length suggesting that yield can be improved through direct phenotypic selection.
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