Dynamic changes in flag leaf angle contribute to high photosynthetic capacity
Document Type
Article
Publication Date
9-1-2009
Abstract
Dynamic changes in flag leaf angle, anatomy, photosynthesis, chlorophyll content, population photosynthesis, and light transmission are investigated in three wheat cultivars: Xiaoyan 81 (Xy 81) in which flag leaf angle changes from erect to draped, Xiaoyan 41 (Xy 41) in which flag leaf angle changes from erect to half draped (middle type), and Xiaoyan 6 (Xy 6) in which the flag leaf remains erect from the flowering to the grain-filling stage. No obvious differences in leaf thickness, leaf area, mesophyll morphology, granal stacking, photosynthesis, or chlorophyll content are found among the three cultivars. It is of interest to find that the flag leaf angle of Xy 81 changes from erect to draped during the grain - filling stage, but there are no obvious changes in chlorophyll content or photosynthetic capacity during this period, indicating that changes in flag leaf angle do not result from senescence. Moreover, the study shows that levels of population photosynthesis and light transmission in Xy 81 are higher than in Xy 41 and Xy 6. Taken together, these results demonstrate that dynamic changes in Xy 81 flag leaf angle enhance population photosynthesis and thus may improve wheat yield. © 2009 Science in China Press and Springer-Verlag GmbH.
Publication Source (Journal or Book title)
Chinese Science Bulletin
First Page
3045
Last Page
3052
Recommended Citation
Liu, Y., Li, M., Li, J., Li, X., Yang, X., Tong, Y., Zhang, A., Li, B., Lin, J., Kuang, T., & Li, Z. (2009). Dynamic changes in flag leaf angle contribute to high photosynthetic capacity. Chinese Science Bulletin, 54 (17), 3045-3052. https://doi.org/10.1007/s11434-009-0470-2