Genetic Variability and Character Association Studies in Indigenous Edible Aroids of Nagaland

Abstract

PHigh estimates of GCV and PCV were recorded for number of inflorescence, breadth of corm and number of cormels indicating the presence of ample variation for these traits in the present material. High heritability coupled with high genetic advance as percent of mean was recorded for Length of corm, Corm girth, Breath of corm, Number of cormels, Leaf length, Number of inflorescences per plant, Number of suckers, Corm weight, Cormel weight, Plant height, Petiole length and Yield per plant. Thus simple selection based on phenotypic performance for these traits would be effective as these are apparently under the control of additive gene action. The corm yield per plant exhibited significant positive correlation with Cormel weight and corm weight indicating relative utility of this trait for selection. Cormel weight and corm weight exerted maximum positive direct effect and exhibited significant positive correlation with yield indicating a true relationship among the traits.