Studies on Parameters of Genetic Variability for Yield and its Attributing Traits in Potato (Solanum Tuberosum L.)

Sunidhi Mishra, Jitendra Singh and P. K. Sharma

Department of Vegetable Science, Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh, 492012.

Corresponding Author E-mail: sunidhi.agri@gmail.com

DOI : http://dx.doi.org/10.13005/bbra/2469

ABSTRACT: The present investigation was undertaken to estimate genetic variability, heritability and genetic advance for important yield component characters in potato. The analysis of variance indicated the existence of sufficient amount of variability among genotypes for all the characters .The phenotypic variance was in general higher than the genotypic variance. Among different yield attributing characters studied, number of compound leaves plant^-1 had the highest magnitude of PCV (30.96 per cent) and GCV (27.94 per cent). The estimates of heritability revealed that characters namely, dry weight of tubers plant^-1 followed by number of compound leaves plant^-1, marketable tuber yield plot^-1, total tuber yield plot^-1 and fresh weight of tubers plant^-1 were recorded with high heritability. The highest genetic advance as percentage of mean was recorded for number of compound leaves plant^-1, dry weight of tubers plant^-1, marketable tuber yield plot^-1, total tuber yield plot^-1 and fresh weight of shoots plant^-1. High heritability coupled with high genetic advance was recorded for the traits viz. number of compound leaves plant^-1, dry weight of tubers plant^-1, marketable tuber yield plot^-1 and total tuber yield plot^-1. Hence, these characters were predominantly governed by additive gene action and can be improved through simple selection.

KEYWORDS: GCV; PCV;  Genetic advance   Genetic Variability;Heritability;Potato;

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