Interactive water and nitrogen effects on senescence of maize. I: Leaf area duration, nitrogen distribution, and yield

(...) Leaves of low N plants had reduced capacity for solute accumulation, and both water and N deficits caused 0.1- to 0.5-MPa reductions in midday leaf turgor. Total GLA was smallest in the OD treatment, byt senescence during grain filling was greatest in the ND treatment because of a high transpiration demand and a high reproductive sink demand for N (...)