옥수수 유묘기 잎말림에 따른 한발 내성 평가

• 영문명: Evaluation of Drought Tolerance in Maize Seedling using Leaf Rolling
• 발행기관: 한국작물학회
• 저자명: 송기태(Kitae Song) 김경희(Kyung-Hee Kim) 김효철(Hyo Chul Kim) 문준철(Jun-Cheol Moon) 김재윤(Jae Yoon Kim) 백성범(Seong-Bum Baek) 권영업(Young-Up Kwon) 이병무(Byung-Moo Lee)
• 간행물 정보: 『한국작물학회지』제60권 제1호, 8~16쪽, 전체 9쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2015.03.30

영문 초록

The objective of this study was to evaluate the drought tolerance in maize seedling using leaf rolling. Nineteen maize resources, seven Nested Association Mapping parents lines, six Korean commercial cultivars, and six Southeast Asia commercial cultivars, were used to examine drought tolerance. The leaf rolling scores were measured on each leaf in three stress conditions with moderate drought (10%), severe drought (7%), and extreme drought (5%). Generally leaf rolling score of seedlings increased at the lower soil water potentials (5~7%). As a result, drought-tolerant cultivars showed lower leaf rolling score (below 2.5) than the drought sensitive cultivars (above 3.5). Nine varieties, NK4043, CML322, DK9955, NK4300, Ki11, DK8868, CML228, LVN99, and LVN10, have been selected for tolerance to drought stress. These results suggest that the leaf rolling score in maize seedling has been made available to indirect index for drought tolerance.

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키워드

maize seedling drought tolerance leaf rolling soil water content