콩 침수 스트레스에 대한 식물생장조절물질 처리 효과

• 영문명: Selection of Suitable Plant Growth Regulators for Augmenting Resistance to Waterlogging Stress in Soybean Plants (Glycine max L.)
• 발행기관: 한국작물학회
• 저자명: 서창우(Chang-Woo Seo) 이석민(Seok-Min Lee) 강상모(Sang-Mo Kang) 박연경(Yeon-Gyeong Park) 김아영(Ah-Yeong Kim) 박현진(Hyeon-Jin Park) 김윤하(Yoonha Kim) 이인중(In-Jung Lee)
• 간행물 정보: 『한국작물학회지』제62권 제4호, 325~332쪽, 전체 8쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2017.12.30

영문 초록

This research was conducted to evaluate methods of enhancing the waterlogging resistance of soybean plant. Thus, we applied seven types of plant growth regulators (PGRs) to soybean plants and exposed them to waterlogged conditions for a total of 14 days. To evaluate stress resistance, we monitored plant growth characteristics data such as height, chlorophyll content, and chlorophyll fluorescence for 28 days after the initial waterlogging (14 days under waterlogging conditions and 14 days after waterlogging). According to the results, plant height was significantly increased by gibberellin A4 (GA4) treatment compared to the control treatment and waterlogging-only treatment. However, we could not detect plant height owing to plant death when we applied abscisic acid (ABA). Except for GA4 and ABA treatments, plant heights slightly decreased in all treatments compared to the waterlogging-only treatment. The chlorophyll content and chlorophyll fluorescence showed a similar tendency among PGR treatments. The chlorophyll content and chlorophyll fluorescence were significantly increased by ethephon and kinetin treatments 28 days after waterlogging compared to the waterlogging-only treatment. Consequently, kinetin and ethephon treatments induced more resistant phenotypes in soybean plants during or after exposure to waterlogging conditions.

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키워드

auxin gibberellins plant hormone stress hormone water stress