Repale JM, Gawhane AB and Kadlag AD

An investigation was conducted to identify early maturing sugarcane genotypes with higher sugar yields at the nursery farms of Shree T. Kore Warana Sugar Mill Ltd.; Shree Chhatrapati Shahu Sugar Mill Ltd. and Jawahar Shetkari Sugar Mill Ltd. from Kolhapur district of Maharashtra State. The study included nine sugarcane genotypes/varieties along with five standards tested in a Randomized Block Design with two replications. The correlation and path analyses were performed on nine different morphological and juice quality traits in relation to the standards Co 86032, CoM 0265, VSI 08005, MS 10001 and VSI 434.The correlation analysis indicated that sugar yield had a highly positive genotypic correlation with cane yield at harvest (0.984**), followed by cane diameter (0.942**), tillering at 120 days (0.857**), number of millable canes/ha (0.837**), single cane weight (0.828**) and millable height (0.622**). On the phenotypic level, cane yield at harvest (0.973**) exhibited the strongest positive association, followed by the number of millable canes/ha at harvest (0.776**), single cane weight (0.752**), cane diameter (0.687**), tillering at 120 days (0.617**) and millable height at harvest (0.431**). Regarding direct effects on sugar yield, the highest phenotypic impact came from cane yield at harvest (1.164), commercial cane sugar % (0.143), sucrose % (0.096), tillering at 120 days (0.016), and cane diameter (0.008). At the genotypic level, the maximum positive direct effect was again from cane yield at harvest (1.017) followed by sucrose % (0.120), commercial cane sugar % (0.084), cane diameter (0.054), tillering at 120 days (0.044), and millable height at harvest (0.004).

DOI: 10.22271/phyto.2024.v13.i5f.15107

Pages: 413-417  |  249 Views  115 Downloads