지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Physiological responses to salinity stress were evaluated in six rice genotypes differing in their tolerance to salinity at the seedling stage. Susceptible genotypes (‘Dongjingbyeo’, ‘Hwayeongbyeo’, and ‘IR29’) showed salt injury symptoms (mean 8.8) and higher visual score under salt stress than that of tolerant ones (‘Pokkali’, ‘IR74009’, and ‘IR73571’). As salinity affects growth and physiological parameters, the six genotypes thus showed significant reduction because of salt stress. Tolerant Japonica/Indica bred lines (‘IR74009’, ‘IR73571’) showed lower reduction, 33.9%, 34.5%, and 50%, respectively, in plant seedling height, dry shoot weight and dry root weight than those of the susceptible Japonica varieties (‘Dongjingbyeo’,‘Hwayeongbyeo’), and the highest reduction under salt stress was observed in dry root weight, followed by dry shoot weight and seedling height, respectively. Shoot Na^+ concentration of IR74099 and IR73571 was lower than that of the susceptible varieties, ‘Dongjinbyeo’ and ‘Hwayeongbyeo’. There were no significant differences among genotypes in root Na^+ concentration.
Shoot K^+ concentration showed a reverse tendency compared to shoot Na^+ concentration. IR74009 and IR73571 had considerably lower ratio compared to ‘Dongjinbyeo’ and ‘Hwayeongbyeo’ in Na^+/K^+ ratio of their shoot and was not different the tolerant check, ‘Pokkali’.
목차
등록된 정보가 없습니다.
참고문헌 (25)
참고문헌 신청
[학술지
Bhumbla DR / 1978 / Saline and sodic soils. In: Soils and Rice / Proceedings of the IRRI symposium on soils and rice : 719 ~ 738
Carden DE / 1999 / The cell physiology of barley salt tolerance / 박사 / University of Sussex
Davenport R / 2005 / Control of sodium transport in durum wheat / Plant Physiology 137 : 807 ~ 818
Flores NRL / 2004 / Role of root signals in rice (Oryza sativa L.) responses to salinity stress / 석사 / University of the Philippines Los Banos
Bhumbla DR / 1978 / Saline and sodic soils. In: Soils and Rice / Proceedings of the IRRI symposium on soils and rice : 719 ~ 738
Carden DE / 1999 / The cell physiology of barley salt tolerance / 박사 / University of Sussex
Davenport R / 2005 / Control of sodium transport in durum wheat / Plant Physiology 137 : 807 ~ 818
Flores NRL / 2004 / Role of root signals in rice (Oryza sativa L.) responses to salinity stress / 석사 / University of the Philippines Los Banos
이 논문의 저자 정보
최근 본 자료
댓글(0)
0