Genetics of Locule in Sesamum indicum L.

Sesame (Sesamum indicum L.) Varieties Vm, X-79-1, Ec359007, EC351887, EZ351881 their 10F 1s, 10F2s were evaluated for genetics of locule .Since the multiloculed nature is of economic advantage in boosting the productivity an attempt is made to follow up the genetics of the locules from the segregation noted in ten crosses, to isolate lines pure for 6, 8, 10L. The 10 crosses of the present study therefore involved the combinations 4*8, 8*8 and 4*8 locules. Progenies of these crosses were evaluated for assessing the genetic nature of the locule character in Sesamum. Plants with 4, 6, 8 and 10L screened from progenies were selfed and seed collected individually was soon sown in separate lines to follow up the segregation. F1 from all types of segregation was 4L. The F2 segregation fitted to the 3:1 ratio of 4L versus multiloculed plants with a non significant y2 suggesting monogenic dominant nature of 4L over the multiloculed nature,with the penetrance and expressivity of the recessive multilocule allele effected by modifying factors