아연처리 볍씨의 발아중 ${\alpha}-Amylase$ 활성과 유리 Proline 함량 변화에 미치는 Kinetin 침종의 영향 = Effects of Seed Soaking of Kinetin with Zinc Treatment on ${\alpha}-amylase$ Activity and Free Proline Content during Germination of Rice(Oryza sative L.)

다국어 초록 (Multilingual Abstract)

The study was carried out to elucidate the changes of ${\alpha}-amylase$ activity and free proline content for zinc toxicity in two rice cultivars(Ilpumbyeo and Namchunbyeo) during germination and early growth stages. Plant height in all kinetin treatments was promoted but zinc 120ppm treatment was decreased. Soaking treatment of kinetin $10^{-3}M$ increased germination rate of both cultivars, Ilpumbyeo and Namchunbyeo by 95% and 96% as compared with zinc 120ppm. Chlorophyll content of Ilpumbyeo was higher than that of Namchunbyeo. Activity of ${\alpha}-amylase$ in kinetin $10^{-3}M$ of both rice cultivars was most highest in the 3days after treatment of zinc 120ppm. Free proline content in all rice cultivars of zinc 120ppm treatment was sharply increased at the 3days after treatment of zinc 120ppm. As a result, the effects of kinetin treatment were recognized to promote the plant height and germination rate under zinc toxicity(120ppm) during rice seed germination and early growth stages.