Vol. 11, Issue 7 (2022)

Author(s):
Manish Chavhan, LN Jawale and SA Patil

Abstract:
The present investigation was studied in eighteen parental (B and R) lines of kharif Sorghum (Sorghum bicolor L. Moench) hybrids. The experiment was laid out in randomized block design with three replications at Sorghum Research Station, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani during kharif 2021. Fifteen characters or yield contributing traits were evaluated for correlation and path analysis studies in eighteen genotypes. In present investigation there is existence of higher genotypic correlation when compared to phenotypic correlation, this indicates the presence of inherent association among the characters. Studying association among the traits with each other and with yield component plays a major role in crop improvement program as yield is the dependent and complex trait which depends on various component traits. Significant and positive association was observed between grain yield and its yield contributing traits like plant height, grain no per panicle and fodder yield at both genotypic and phenotypic levels while stem dry weight and SPAD at genotypic and harvest index at phenotypic level, this association indicates increase in one or more of these traits results in increase in grain yield. Selection for a trait is effective when both the values of correlation and direct effect are higher and positive as this indicates its true association. In this investigation path analysis revealed at both genotypic and phenotypic level for leaf area, relative water content, stem dry weight, SPAD, grain no per panicle exhibited positive direct effect on grain yield there by it would play an important role in selection criteria for improving the character grain yield. Further selection of these characters will improve the breeding efficiency of the genotypes. Hence, due consideration should be given for the traits while selecting parental lines. Among the eighteen genotypes studied parental (B and R) lines viz. AKR 504, NR 39-15, KR 218, KR 219, PMS 100B, AKMS 90 B and INDORE 12 recorded better performance and these are considered as the superior genotypes.