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The capacity and genetic base of canopy temperature (CT) as indicator on drought tolerance (DT) in rice reproductive stage

文献类型： 会议论文

第一作者： G.H. Zou

作者： G.H. Zou 1 ; H. W. MEI; H.Y; LIU; S.P. HU; G.L. LIU; X.Q. YU; J. LI; P. LONG; LIJUN Luo;

作者机构： 1.Shanghai Agrobiological Gene Center, Shanghai 201106, China

会议名称： Resilient crops for water limited environments

主办单位：

页码： 202-203

摘要： Although there have been an abundance of studies on drought tolerance of plants, progress on drought tolerance (DT) related to rice gene discovery and cultivar development has been very limited and slow. This is mainly because of the extreme complexity of this phenomenon as well as the lack of the simple and effective methodologies (Blum, 1999). Several morphological and physiological traits related the water status of plants have been suggested to indicate the DT performance of plants in many published papers (Fukai et al., 1995; Babu et al., 1999; Turner et al., 1997). However, for the large diversity of germplasm, especially for mapping populations, it is very difficult to accomplish the measurement on the physiological traits such as leaf waterpotential in a short time to meet the demand on homogeneity. Dennes and O'Toole (1995) found that there was significant correlation between visual drought tolerance and mean canopy temperature (CT) in rice under moderate water stress. In this study, by using a recombinant inbred population and molecular map technology, we investigate the capacity of CT as a drought tolerance measurement indicator, as well as try to understand the genetic basis of CT in plants at the reproductive stage under both normaland water stress conditions.

分类号： S511

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