수수의 종자형태 및 발아세 평가

Abstract

This study was conducted to evaluate basicseed characteristics such as morphological characteristics andvarious seed vigor using 4 sorghum varieties, Nampungchal,Donganme, Hwanggeumchal and Whinchal. No differencewas shown in morphological characteristics of the varietiesexcept that the width. Whinchal has bulb-shaped seed, whilethe other varieties have oval-shaped seeds. The seed coatcolor of Whinchal is obviously different from those of theother varieties; especially, Nampungchal and Hwanggeumchalare not glossy. Germination rate were Hwanggeumchal >Nampungchal > Donganme > Whinchal in the order ofhigher rate in standard germination tests and cold germinationtest. In the ageing test, Donganme showed the lowest 15%decrease in comparison with the standard cultivar. Electricconductivity (EC) has negative correlation with standardgermination tests, cold germination test and accelerated ageingtest. In the percentage of emergence (PE), Hwanggeumchalwas the highest 85.7% which was more than 40% to thelowest Whinchal. Mean emergence time (MET) showedsignificant difference between the varieties; Whinchal showedthe slowest 6.0 days.