Ramesh Kumar*, Sudhir Sharma and Kanika Pawar
CCS Haryana Agricultural University, Regional Research Station, Karnal 132001
Email: rameshkrgr@gmail.com
Received-30.05.2022, Revised-19.06.2022, Accepted-28.06.2022
Abstract: Twenty-two sugarcane midlate clones were evaluated for agro-morphological and quality characters in randomized block design (RBD) at CCS, Haryana Agricultural University Regional Research Station,Karnal during 2019-20. Analysis of variance showed that mean squares due to genotypes were highly significant for all the characters studied, indicated the presence of sufficient genetic variability and appropriateness of the material selected for the present study. Phenotypic coefficient of variation (PCV) was higher than genotypic coefficient of variation (GCV) for all the characters representing more environmental impact on these characters for total variation. High heritability (broad sense) coupled with high genetic advance was observed for stalk length. High heritability (broad sense) coupled with moderate genetic advance as percent of mean was observed for cane yield, stalk length, stalk diameter and CCS (t/ha), therefore, it indicates that simple selection will be effective for genetic improvement of these characters.Genotypic and phenotypic correlation coefficients for cane yield exhibited significant and positive relationship with number of tillers at 120 DAP, number of shoots at 240 DAP, NMC at harvest, single cane weight and CCS (t/ha). These traits play a greater role as an important contributing character for higher cane yield and quality. Lack of association of quality characters namely sucrose percent, brix percent and purity with grain yield at genotypic and phenotypic level in present study suggests that we can improve quality content without affecting cane yield. The path coefficient analysis indicatedthe maximum positive direct effect on cane yield was shown by CCS (t/ha) followed by number of shoots at 240 DAP, single cane weight, number of millable cane and germination at 45 DAP, extraction percent and stalk length.Therefore, in order to increase cane yield, effective selection can be accomplished for the characters having high direct effects.
Keywords: Sugarcane, Heritability, Genetic advance, Correlation coefficient,Path coefficient analysis
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