Journal of Krishi Vigyan

An experiment was conducted at SG college of agriculture and research station, IGKV, Jagdalpur to estimate correlation and path analysis among different characters of twenty eight sweet potato genotypes in randomized block design in 3 replication during Kharif 2020–21. Observed thirteen quantitative characters viz., vine internode length, length of tubers per plant, diameter of tubers, starch, dry matter of tubers, no. of tubers per plant, tubers weight per plant, harvest index and tubers yield (t/ha). Analysis of variance revealed that mean sum of squares due to genotypes was highly significant for all the characters. Correlation revealed that tubers yield (t/ha) showed high significant positive correlation with tubers weight per plant at both phenotypic and genotypic level (0.807 and 0.963) followed by number of tubers per plant, starch (%), diameter of tubers (cm), length of tubers (cm), harvest index (%), dry matter of tubers (%). Path co-efficient analysis revealed maximum direct contribution towards tubers weight per plant showed maximum positive direct effect on tubers yield (1.125t/ha) followed by diameter of tubers, vine length, number of tubers per plant, TSS of tubers percent and length of tubers per plant.