THE EFFECTS OF SEED’S SIZE, AND REMOVAL TESTA TREATMENT ON GERMINATION RATIO AND PERIOD OF FABA BEAN STORED SEEDS (VICIA FABA VAR. ECUADELJE)

Abstract

The research was conducted at - Sulaimani Polytechnic Universit (SPU), Bakrajo Technical Institute in Sulaymaniyah city, Iraq in begging of 2018. Three different sizes and varieties Ecuadelje of bean seeds were used and treated. Water-soaking, dilute acid soaking, and dilute base with scarification soaking. They were distributed in 36 pots by using CRBD with three replicates. The results showed the significant differences only with the effect of seeds size from the period of sowing seeds to the end of germination. The small size seeds had significant differences compare to the others. But the effect of removal test was high significant in all studied characteristics. Seeds which socked with diluted base and diluted acid had significant differences compare to the other treatments form the initial to the final stage of seeds germination. The interaction between seeds sizes and removable testa treatment showed significant differences among small size seeds which treated with diluted HCl during the initial and final stage, and the large size seeds treated with diluted NaOH. Seeds scarification treatment did not show any positive effects in both of germination periods, but showed significant differences in the percentage of initial and final germination. We suggested to sock the broad bean seeds in one of diluted bases or diluted acids and scarification of seed treatment in order to stimulate germination percentage reduce of the germination period and develop broad beans stored seeds germination.