두과 작물의 경실종자 발아촉진에 대한 종피연화처리의 효과

• 영문명: Effects of Scarification and Water Soaking Treatment on Germination of Hard-Seeded Legumes
• 발행기관: 한국작물학회
• 저자명: 김석현(Seok-Hyeon Kim) 장미하(Mi-Ha Chang) 정종일(Jong-Il Chung) 심상인(Sang-In Shim)
• 간행물 정보: 『한국작물학회지』제54권 제3호, 320~326쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2009.09.30

영문 초록

The crops showing hard seed character have high seed viability after seed storage for long period. The low germination rate due to hard seed coat, however, cause a problem of low seedling establishment in field condition. Three legumes used in the experiment, lablab bean (Dolichos lablab L.), asparagus bean (Vigna sesquipedalis L. Fruwirth), and soybean (Glycine max L. Merr.), showed low germination rate (26, 17, and 5%, respectively) due to thick and hard seed coat. In this study artificial treatment for breaking dormancy was tested in hard seeds. The effect of proper treatment was various depending on species. The germi-nation rate of lablab bean was highly improved up to 94% by soaking into water for 24 hours. In the case of asparagus bean, the rate was increased up to 90% by soaking for eight hours near boiling water until it cools. The germination rate of small hard seed soybean was increase to 96% by soaking into concentrated sulfuric acid for 10 minutes. Ultra-structural change revealed by scanning electron microscope (SEM) reflects that the structure of micropyle was changed and water uptake was facilitated with all treatments tested in the experiment. Especially, sulfuric acid treatment resulted in the degradation of micropylar tissue. These results demon-strate that the artificial treatment including sulfuric acid and (hot) water soaking treatment for promoting water uptake can be applied to improve seed germination in legume seed with thick and hard seed coat.

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seed sulfuric acid hot water soaking breaking dormancy asparagus bean lablab bean soybean SEM