Sensitivity of Wheat Phasic Development to Major Environmental Factors: a Re-Examination of Some Assumptions Made by Physiologists and Modellers

In this review we assess the universality of several assumptions that are commonly made about development in wheat. The assumptions tested are that: (1) wheat is most sensitive to the environmental variables of temperature and photoperiod during the vegetative period; (2) any responses to vernalisation and photoperiod are complete by the time that the apex has become reproductive and the stems begin to elongate; (3) cultivars differ little in...