Abstract: Leaf water transport is a complex physiological process in the SPAC system. It is not only regulated by the plant itself, but also affected by the external environmental conditions. This paper reviews recent new progresses and developments including the role of leaf water transport in plant water balance, the definition of leaf hydraulic conductivity and its influencing factors. Internal and external environmental factors differ in affecting leaf hydraulic conductivity. This paper mainly explains the effects of soil factors, meteorological factors, plant hormones, developmental stages and anatomical characteristics on leaf hydraulic conductivity. At last, we put forward some urgent problems needing to be considered in leaf hydraulic conductivity research and made prospects for key development direction of research in the future.

Key words: wheat stripe rust, meteorological grade forecast, winter reproductive area in Sichuan Basin