Abstract
Simple, partial and multiple correlation studies were conducted on the yield and its components in 19 diverse genotypes of Dioscorea deltoidea Hook. In simple correlation tuber yield was significantly correlated with leaf area/plant, tuber girth/plant, number of bines/plant and weight of vine/plant, while partial correlation co-efficients indicated positive relationship with number of bines/plant, leaf area/plant and tuber girth/plant. Multiple correlation co-efficients revealed that leaf area, number of bines and weight of vine were better combinations than others for enhancing the tuber yield.
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