Allometric Relationships between Dry Matter Weights of Maize Organs and Their Responses to Drought

To understand the drought response mechanisms of dry matter partitioning maize, pot experiments under conditions were conducted during vegetative and reproductive growth periods maize. The aim was to calculate allometric relationships between weight different organs their responses drought. Results showed that roots, above-ground plant, total biomass gradually increased with maize approaching maturity a normal water supply. Drought period reinforced process after rewatering size-dependence root shoot ratio. However, weakened them. ear–shoot relationship more significant than at later but strengthened in those plants suffering droughts stages. harvest index significantly enhanced by compared period.