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• 영문명: Responses of Root Growth Characters to Waterlogging in Soybean [Glycine max (L.) Merrill]
• 발행기관: 한국작물학회
• 저자명: 이재은(Jae-Eun Lee) 김홍식(Hong-Sig Kim) 권영업(Young-Up Kwon) 정건호(Gun-Ho Jung) 이춘기(Chun-Ki Lee) 윤홍태(Hong-Tai Yun) 김정곤(Chung-Kon Kim)
• 간행물 정보: 『한국작물학회지』제55권 제1호, 1~7쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2010.03.30

영문 초록

Stress from excess water is one of the most harmful limiting factor in soybean yield during the wet season under the climate conditions. Soybean is very sensi-tive to excess water compare to other crops. This experi-ment was carried out to identify the growth responses for establishing a screening system related to waterlogging tolerance in soybean from 2003 to 2004. The root dry wei-ght accumulation rate of per day for 21 days after water-logging at V5 stage was the highest in Pungsannamulkong (47~56% of control) and was the lowest in Jangyeobkong (26~27% of control). The nodules dry weight recovery rate was the highest in Pungsannamulkong (83~91% of control), while the lowest in Myungjunamulkong (48~66% of control). After waterlogging, recovery rate of roots was high, which increased the root/shoot ratio of Pungsannamulkong, which also produced significantly more adventitious roots than in Jangyeobkong. The percentage of adventitious roots fresh weight to the total roots fresh weight was the lowest in Myung-junamulkong (14%), while the highest in Pungsannamulkong (38%). This results implies that the water and nutrients ab-sorbing ability of Pungsannamulkong is more higher than that of Myungjunamulkong during late growth period.

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soybean waterlogging root dry weight adventitious root