~ 891 ~ The Pharma Innovation Journal 2021; 10(4): 891-896 ISSN (E): 2277- 7695 ISSN (P): 2349-8242 NAAS Rating: 5.23 TPI 2021; 10(4): 891-896 © 2021 TPI www.thepharmajournal.com Received: 09-02-2021 Accepted: 24-03-2021 S Man M.SC. Research Scholar, Department of Genetics and Plant Breeding, Uttar Banga Krishi Viswavidyalaya, Pundibari, Coochbehar, West Bengal, India S Chakraborty Department of Genetics and Plant Breeding, Uttar Banga Krishi Viswavidyalaya, Pundibari, Coochbehar, West Bengal, India A Sarkar Department of Genetics and Plant Breeding, Uttar Banga Krishi Viswavidyalaya, Pundibari, Coochbehar, West Bengal, India A Kundu Department of Genetics and Plant Breeding, Uttar Banga Krishi Viswavidyalaya, Pundibari, Coochbehar, West Bengal, India MK Debnath Department of Agricultural Statistics, Uttar Banga Krishi Viswavidyalaya, Pundibari, Coochbehar, West Bengal, India Corresponding Author: S Chakraborty Department of Genetics and Plant Breeding, Uttar Banga Krishi Viswavidyalaya, Pundibari, Coochbehar, West Bengal, India Character association of different turmeric genotypes in Terai region of West Bengal S Man, S Chakraborty, A Sarkar, A Kundu and MK Debnath Abstract An investigation was carried out in the university farm land of 22 genotypes for two years 2018-19 and 2019-20 and character association was done of 10 DUS characters where genetic parameters like co- efficient of variation, genotypic variance, phenotypic variance, GCV, PCV, heritability and genetic advance the results were evaluated for finding out the influence of additive genes or non additive genes of all characters in the next generation. Path analysis of the characters was also done for 2018-19 and 2019-20 to find out the direct and indirect effects of all the characters among themselves on dependant character yield. Plant height was found as a heritable genetic character (which has moderate heritability) and moderately high GA indicates as it is strongly influenced by additive genes for expression for crop improvement programme in the next generation. Single Rhizome wt although does not have high heritability, but the influence of additive genes is found in the two generations. From the results of path analysis plant height character was found to have strong direct significant positive effect on dependant character yield and number of primary rhizome had direct significant negative effect on projected yield. Selection of character (Plant Height, Plot yield) is found on the basis of genotypic coefficient of variation, phenotypic coefficient of variation, genetic advance by which crop improvement programme can be set up for future generations where action of additive genes will determine the expression of genetic characters in each genotype. Keywords: Genotypic coefficient of variation, phenotypic coefficient of variation, heritability, genetic advance, path analysis, additive genes Introduction Turmeric is commonly known as ‘Golden spice’, and considered to be triploid species (2n = 3x = 63; x = 21) as reported by Ramachandran, (1961) [20] . It is very shy in flowering requiring, needs specific climatic conditions for flowering and has pollen fertility less than 60% (Nambiar, 1979; Nair et al., 2004) [16, 17] . According to Marco Polo (1280), turmeric was found first time in china in 700 AD (Ridley, 1912) [21] . Purseglove et al. (1981) [19] stated that the people of Malagasy believed in a Malay – Polynesian connection in the origin of turmeric in that country. Burkill (1966) [2] believed that the crop spread to West Africa in the 13th and to East Africa in the 17th centuries. It was introduced to Jamaica in 1783. The introduction of turmeric to Central American countries is quite recent. Over 80 species are reported in the genus Curcuma (Zingiberaceae) from Indo Malayan region and about 41 of them are indigenous to India (Table.2) (Velayudhan, K.C et al. 1996; Sasikumar 2005) [28, 22] . It is widespread in the tropics of Asia to Africa and Australia. The principle colouring components of turmeric rhizome is the curcumin (Cur-I) [1,7- bis (4- hydroxy-3-methoxyphenyl)- 1,6- heptadiene-3,5-dione], while two other pigments demethoxycurcumin (Cur-II) [1-(4- hydroxyphenyl)-7-(4-hydroxy-3-methoxyphenyl)- 1,6- heptadiene-3,5 dione] and bis demethoxy curcumin (Cur-III) [1,7-bis(4-hydroxyphenyl)-1,6- heptadiene-3,5-dione] are present in lesser extent (Jayprakasha et al., 2002) [11] . Curcuminoids exhibit free radicals scavenging properties, antioxidant activity (Toda et al., 1985; Soudamini, 1989; Ammon et al., 1993; Selvan et al., 1995; Masuda et al., 1999) [25, 23, 1, 15] and act as inhibitors of human immune deficiency virus type 1 (HIV-1) integrase (Mazumdar et al., 1995) [13] . Recently curcumin has been found to be anti-depressive and hypolipidimic (Bhutani et al., 2009) [4] . In Indian system of medicine, turmeric rhizome are used in stomachache, as blood purifier, carminative, appetizer tonic, anorexia, cough, diabetic w and hepatic wounds and hepatic disorder. It has been used in India as medicinal plant, and held sacred from time immemorial (Duke, 2007) [6] and is reported to be therapeutic agent for a several major human disease (Hung Hsu and Lii Cheng, 2007) [7] . India is the largest