Genetic Variability, Correlation and Path-Coefficient Studies in Litchi (Litchi chinensis Sonn.) for Plant Growth, Panicle and Yield Attributes

Studies were carried out in National Active Germplasm Site (NAGS) at ICAR-NRC on Litchi, Muzaffarpur, Bihar, India during 2018 and 2019 to find the association between different characters magnitude of with yield (kg plant-1) nine clones litchi (Litchi chinensis Sonn.). Result revealed that genotypic coefficient higher than their corresponding phenotypic ones implying an inherent relationship among them. The differences variation (PCV GCV) found narrow for all traits indicate least influence environment traits. Heritability was more 80% parameters studied except seed weight (34.90%) TSS (73.20%). Correlation analysis quantifies only degree two non-significant correlation value cannot be taken imply absence functional variables but path reveals this by breaking total into components direct indirect effects. number leaflet, leaf length, width, rachis petiole length panicle, fruit weight, pulp TSS, sugar exhibited positive correlation. Among character studied, (1.646), (0.975), panicle (0.900), (0.639), per (0.601), (0.465) (0.370) recorded maximum effect towards both level. This study could form a selection criterion improvement litchi.