Monday, November 5, 2007 - 1:55 PM
62-3
Nitrogen and Growth of Grass Leaves.
Nitrogen nutrition affects crop produtivity both through leaf photosynthetic potential and through leaf area development. The objective of the present contribution is to examine the processes by which nitrogen nutrition regulates leaf growth. The intercalary meristem of grass leaves is structured in a spatial and temporal gradient of development, and constitutes a convenient system to determine how nitrogen nutrition affects the leaf development processes. The impact of nitrogen nutrition on leaf growth is examined in terms of cell division and cell elongation, in terms of nitrogen dynamics, in terms of interactions with carbon economy within the leaf intercalary meristem, and is replaced in the context of crop physiology and management.
Audio File