Seiichi Akamatsu scite author profile

C4 plants have high photosynthetic capacity but are inefficient under low light. In a canopy, lower leaves developed under high light are progressively shaded. To elucidate how lower leaves in a C4 canopy reacclimatize to low light, we investigated maize canopies differing in light environment grown at standard and low planting densities (SPD, LPD). Although upper leaves at SPD and both upper and lower leaves at LPD had light-response curves of photosynthesis of sun leaves, lower leaves at SPD had that of shade leaves. All leaves at both densities had anatomical framework of sun leaves, but the chloroplast content in mesophyll and bundle-sheath cells of lower leaves at SPD was greatly reduced to reacclimatize to low light. This study demonstrates that lower leaves at SPD reacclimatize to low light by adjusting their physiological and chloroplast traits while maintaining anatomical framework, whereas those at LPD behave as sun leaves.

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Studies of Direct-sowing Rice Culture by Broadcasting of Seed on submerged Paddy Field : IV. Relationship of seeding density to plant growth and rice yield

1966

Studies of Direct-Sowing Culture by Broadcasting Seeds on a Submarged Paddy Field : No. 7 Effects of seeding density and amount of top dressing on the yield of rice and its components

1968

Studies of Direct-Sowing Culture by Broadcasting Seeds on a Submerged Paddy Field : No. 6 Effects of seeding density and amount of fertilizer on the growth and yield of rice

1968

Studies of Direct-Sowing Culture by Broadcasting Seeds on a Submerged Paddy Field : No. 8 Effects of the amount of fertilizer and different proportions of basic fertilizer to top dressnig on the growth and yield of rice

1968