Vol. 12, Special Issue 9 (2023)

Author(s):
D Basak, S Chakraborty, M Chakraborty, R Mandal, A Sarkar, A Kundu, M Debnath and S Khalko

Abstract:
An investigation was carried out for three years (2019-20, 2020-21 and 2021-2022) in the university Research farm where the 30 turmeric genotypes were characterized according to DUS descriptors done by IISR (Indian Institute of Spices Research, Kozhikode, Kerala). Analysis of variance and GCV, PCV, heritability, genetic advance and genetic advance against mean were estimated as essential parameters of genetic potential of 30 genotypes to characterize and evaluate in terai region of West Bengal along with TCP-2 as local check and Prativa as national check. In case of analysis of variance of year wise performance, all the descriptors were found to have significant results in the pooled analysis of three years except number of mother rhizome, girth of mother rhizome, weight of secondary finger and length of secondary finger. In case genotype performance, all the genotypes were found to have significant results on descriptors in three years pooled data. In case of genotype and season interaction effect, all the descriptors were found to have significant results except number of shoots, number of leaves, girth of mother rhizome, weight of primary finger, weight of secondary finger, length of secondary and curcumin percentage. The high GCV along with high heritability, high percentage of genetic gain were found in rhizome parameters like weight of mother rhizome (WMR), curcumin content, weight of primary finger and weight of secondary finger. From the investigation, it can be concluded that, for effective selection, the characters like wt of mother rhizome (WMR), curcumin content, weight of primary finger and weight of secondary finger will be considered for future crop improvement programme due its high heritability and high to moderate genetic advance against mean and high GCV which determines that the characters are heritable in nature due to the action of additive genes and the variability of genotypes were high in nature, the characters are not influenced much by environmental effects.