The death of spikelets in wheat due to water deficit

Abstract

Two varieties of wheat (Triticum aestivum), Heron and Summit, were grown under controlled conditions and droughted at stamen initial formation, at the completion of spikelet differentiation, and at ear emergence. Dead spikelets were induced by droughting at ear emergence, thereby confirming the course of a field symptom. Fewer spikelets died on Heron than Summit plants under all except the most severe drought conditions.