Genetic Variability and Inter-relationship Between Fibre Yield and its Components in Roselle (Hibiscus sabdariffa L.) in Terai zone of West Bengal
Satyanarayana N. Hari*, Mukherjee Subhra1, Priya Bhanu, Roy S.2
Department of Genetics and Plant Breeding, BCKV, Mohanpur, Nadia, West Bengal-741 252
1AINP on Jute and Allied Fibres, BCKV, Mohanpur, Nadia, West Bengal-741 252
2AINP on Jute & Allied Fibres, UBKV, Pundibari, Coochbehar, West Bengal-736 165
*Corresponding author E-mail: email@example.com
Genetic variability, correlation and path analysis were studied in a set of sixty diverse genotypes of roselle (Hibiscus sabdariffa L.) dur-ing Kharif, 2013 at Uttar Banga Krishi Viswav-idyalaya, Pundibari, Coochbehar, West Bengal for eleven important traits. Phenotypic as well as genotypic coefficients of variability were high for the important productivity characters like fibre yield plant−1, dry stick weight plant−1 and green weight plant−1 (for PCV) and medium for other characters like plant height, intermodal length and petiole length. High heritability coupled with high expected genetic advance was ob-served for fibre yield plant−1, dry stick weight plant−1 and green weight plant−1. Fibre yield per plant was found to be significantly and positively correlated with all the characters both at pheno-typic and genotypic levels except petiole length which was significantly correlated in negative direction. Plant height, base diameter, mid diam-eter, green weight plant−1 and dry stick weight plant−1 also exhibited significant positive inter correlation among themselves. Partitioning of correlation coefficients of various components upon fibre yield plant−1 into direct and indirect contributions revealed that dry stick weight plant−1 has maximum direct effect upon fibre yield plant−1 followed by plant height and mid diameter.