Possibility of Sesame production using F2 and F3 seeds derived from F1 hybrid seeds

Abstract

Using hybrid variety is an alternative to increase crop yield, because some hybrid varieties will show high heterosis and will only appear in F1 generation . However, the production cost of hybrid seeds is very high. Possibility of sesame production using F2 and F3 seeds will be help to reduce cost of seeds. The objective of this experiment was to study possibility of sesame production using F2 and F3 seeds derived from F1 hybrid seeds. The trial was conducted at Experimental Farm, Department of Agronomy, Faculty of Agriculture, Khon Kaen University. Production of F1, F2 and F3 hybrid seeds was done in 2003 - 2004 and yield comparison between F1, F2, F3 populations and pure line varieties was studied in 2005. The experiment was laid out in RCB with 4 replications, 6 rows plot, 5 m. length and 50x10 cm. of row x plant spacing. The results revealed that F2 and F3 seeds derived from F1 hybrid seeds of UB1xMR13 can be used for sesame production since they gave the yield equal to KKU1 x MR13, the best F1 hybrid variety but there were variation in seed color in F2 and F3 populations.