Respected readers, authors and reviewers, you can add comments to this page on any questions about the contribution, review, editing and publication of this journal. We will give you an answer as soon as possible. Thank you for your support!
Effect of S-deficiency on the characteristics of rice leaf photosynthesis was studied by using water culture.The results showed that under the S-deficiency condition,net photosynthetic rate(Pn),initial fluorescence value(Fo),ratio of the variable to maximum fluorescence(Fv/ Fm),actual photochemical efficiency(ФPSⅡ)and electron transport rate(ETR)in the leaves decreased significantly,non-photochemical quenching coefficient(NPQ)increased,and capability of photosynthesis decreased.Either destruction of PSⅡreaction center or reversible activity loss did not decrease the PSⅡactivity of the leaf.Increase of NPQ caused the decrease of Fo in S-deficient rice,and this might be a mechanism for the rice to adapt itself under adversity of S-deficiency.
CARRASCO R M,RODRIGUEZ J S,PEREZ P.Changes in chlorophyll fluorescence during the course of photoperiod and in response to drought in response to drought in Casuarina equisetifolia Forstand Forst[J].Photosynthetica,2002,40(3):363-368.