Photosynthetic parameters of maize (Zea mays L.) inbred lines and F1 hybrids: their different response to, and recovery from rapid or gradual onset of low-temperature stress

Abstract

Photosynthesis was measured in maize inbreds and F1 hybrids grown under severe or moderate chilling stress. The superiority of hybrids over their parents, found in chilling-stressed plants, was not always retained after their return to optimum c