抄録
The inheritance of the quantitative characters were studied on the early segregating generations of two tobacco crosses. Observations recorded on each plant were leaf shape, number of leaves, days to flowering a, nd plant height. F1, F2, B1 and B2 populations of cross I, Nambu (air cured type) XBright Yellow (flue cured type), and cross II, Oxford (flue cured type) XBright Yellow, together with their 'respective parents were planted in a randomized block with three replicates. Heritability value and dominance for each character and correlation were calculated by arithmetical scale. Heritability value of each characters estimatedi were large on an average, especially the value of leaf shape, 0. 62, was almost similar to the results. of other crosses. The leaf shape was not correlated with any other characters while the number of leaves was considerablly correlated with the days. to flowering. Each characters except the leaf shapeand plant height in cross 11 represented the heterosis. Considering these results, the selection method of these characters was discussed.
