Vol. 12, Issue 6 (2023)

Author(s):
Hardeep, Sudhir Sharma, Ramesh Kumar and Bhawana

Abstract:
This experiment was carried out using 50 sugarcane genotypes grown in randomized block design having three replications at the research farm of CCS HAU, RRS, Uchani, Karnal during spring season 2020-21. Seventeen morphological and quality traits were studied for genetic variability, correlation and path analysis. Analysis of variance (ANOVA) showed that mean sum of squares due to genotypes were highly significant for all the characters studied, indicating the presence genetic variability. PCV calculated for all seventeen characters were found higher than corresponding GCV, indicating slight affect of environment on expression. High heritability coupled with high genetic advance as percentage of mean was shown by number of tillers at 120 DAP, number of shoots at 240 DAP, single cane weight, cane length, cane yield and CCS (t/ha) indicated preponderance of additive genetic effect in the determination of these characters. Characters namely CCS (t/ha), single cane weight, cane girth, cane length, number of Millable canes at harvest, number of tillers at 120 DAP and number of shoots at 240 DAP had significant and positive correlation with cane yield. Path analysis revealed that highest positive direct effect on cane yield was exerted by CCS % at 10th month followed by CCS (t/ha), CCS % at 8th month, brix % at 8th month, number of Millable canes at harvest, single cane weight, purity % at 8th month, cane girth and number of tillers at 120 DAP. These characters can be utilized efficiently in further selection for yield improvement in sugarcane.