Abstract
The experiment was conducted in order to estimate th.e h.eritability of various characters and genotypic correlations between them. The characteristics of the parents, Kiku-naga and Sendainaga No. 1, are shown in Table 1. Both parental varietiesa F1 and F2 hybrids, 45 lines of F3 and as many of F4 obtained by self=Pollination were examined in a randomized block arrangement with two replications. The charcters observed were : number of days from seeding to flowering, plant height, stem diameter, number of fruits per pl.ant and index of frtlit shape. Basing on the means of 7 plants per line in a block, variance and covariance analyses were carried out. The experimental results may be summarized as follows.