Genetic Analysis on Fruit Mass,Pericarp Thickness and Locule Number in Tomato

The inheritances of fruit mass,pericarp thickness and locule number in tomato were studied by using six systematic generations derived from two inbred lines '860' and 'HYT'.Minimum gene number and heritability for these traits were estimated and their hereditary correlation coefficients were calculated.The results showed that the heredity of all three traits satisfied the pattern of additive-dominance model.General inheritabilities for three traits were 54.89%,47.58% and 42.26%,respectively and the narrow inheritabilities 54.20%,40.99% and 40.86%.The minimum gene numbers for three traits were 8,5 and 2,respectively.The correlation coefficients between fruit mass and fruit pericarp thickness,between fruit mass and locule number and between fruit pericarp thickness and locule number,were 0.741 1,0.354 9 and 0.171 3,respectively.