팥 포장출현력 예측을 위한 종자세 검사

Abstract

Field emergence of Azuki bean is poor dueto hard seed coat as compared to other legumes. In this study,an attempt was made to develop prediction method withregression analysis based on various seed vigor tests in laboratoryfor field emergence of azuki bean. Azuki bean seeds artificiallyaged to provide various levels of seed quality were evaluatedby the standard germination test (SGT), cold germination test(CT), cool germination test (CGT), complex stressing vigortest (CSVT), tetrazolium(TZ) vigor test and electroconductivitytest. The SGT was suitable for predicting the field emergencein the unaged high vigor seeds. The abnormal seedling percentageand shoot length in the CGT were highly correlated withfield emergence of moderate vigor seeds artificially agedfor 2 days. Electroconductivity, seed viability in the CSVT,and vigor and predicted germinability in the tetrazolium vigortest were also useful for predicting field emergence. Percentof ungerminated seed in the CSVT was correlated with fieldemergence in the low vigor seeds artificially aged for 4days. In a stepwise multiple regression analysis, seed viabilityin the SGT, normal seedling percentage and dry matter weightin the CGT accounted for 86.9% of the predicted value offield emergence in azuki bean.