Vol. 10, Issue 12 (2021)

Author(s):
Sangeeta, Devaraju, Srinivasa V, Lakshmana D, Kantharaj Y and Arunkumar B

Abstract:
A field experiment was conducted to assess the magnitude of genetic variability present in taro genotypes during Rabi 2020-21. The experiment was laid out in randomized complete block design at College of Horticulture, Mudigere. The analysis of data revealed the presence of considerable variability for all the characters among the genotypes. Estimates of high heritability coupled with high genetic advance as per cent over mean recorded for all the traits except leaf thickness, cormel width and protein content suggesting that these characters can be improved through direct selection due to predominance additive gene action. Correlation studies revealed that tuber yield per plant exhibited a highly significant and positive correlation with the plant height, number of leaves per plant, leaf length, petiole length, leaf area, cormel weight, number of corms per plant, number of cormels per plant, corm yield per plant and cormel yield per plant both at genotypic and phenotypic level. Path coefficient analysis revealed that traits like plant height, number of leaves per plant, leaf length, corm yield per plant and cormel yield per plant exhibited positive direct effect on tuber yield per plant both at genotypic and phenotypic level which indicating that direct selection based on these attributes can be used in developing high yielding varieties.