종자저장방법 및 GA3처리가 배풍등 종자 발아와 유묘 생육에 미치는 영향
Effects of Seed Storage Methods and GA3 Application on Seed Germination and Seedling Growth of Solanum lyratum Thunb.
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초록
본 연구는 유용약용자원식물 배풍등의 대량생산을 위한 기초연구로 종자저장방법과 GA3처리가 종자발아와 묘 생육특성에미치는 영향을 구명하고자 수행되었다. 종자저장방법은 .20℃저장, 노천매장, 저온(2℃)건조 및 습윤저장, 상온(24±4℃)저장의 5가지로 하였으며, GA3처리는 대조구, 증류수, 10, 100,1000 ppm의 5가지로 하였다. 그 결과 배풍등 종자를 상온저장한 후 GA3 10 ppm 24시간 처리하였을 때 91%의 최대 발아율을나타내었다. 배풍등의 묘 특성은 저온건조저장 후 GA3 1000ppm 처리된 종자를 발아시켰을 때 초장 47 ㎜, 엽수 8매, 엽폭12 ㎜, 엽장 19 ㎜, 생중량(지상 / 지하부) 471 ㎎ / 476 ㎎, 건중량(지상 / 지하부) 106 ㎎ / 41 ㎎ 및 묘목묘소지수 106으로 우수묘를 확보할 수 있었다. 따라서 배풍등 종자는 저온저장 후 GA31000 ppm 처리시 80% 이상의 발아율과 양질의 우수묘 확보가가능한 것으로 판단된다.
Abstract
This study was conducted to determine the effects of seed storage methods (–20℃, stratification, 2℃ dry, 2℃ wet and room temperature) and GA 3 application (control, dH 2 O, 10, 100, 1000 ppm) on seed germination and seedling growth of S. lyratum. As a result seed germination rate of S. lyratum was the highest at 91% when seeds were stored at room temperature and then soaked for 24 hours in GA 3 10 ppm. And seedlings of S. lyratum showed the best quality when seed were stored at 2℃ dry and then soaked for 24 hours in GA 3 1000 ppm, with the growth characteristics of plant height (47 ㎜), number of leaves (8), leaf width (12 ㎜), leaf length (19 ㎜), fresh weight (aerial/root part; 471/476 ㎎), dry weight (aerial/root; 106/41 ㎎) and seedling quality indices (106). Therefore, S. lyratum seed were stored at 2℃ dry, and then soaked for 24 hours in GA 3 1000 ppm, seed germination rate was more than 80% and production of superior quality container seedlings.
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