Effects of Radiation and Temperature on Tiller Survival, Grain Number and Grain Yield in Winter Wheat

Effects of the environment on shoot survival were studied in winter wheat cv. Avalon grown in microplots at a density of 247 plants m−2. The incident radiation and mean temperature were altered during one of three periods of between 14 and 29 d duration, the first (P1) starting at the end of tiller production and the last (P3) finishing near the end of the tiller death phase, about three weeks before anthesis. Plants were given temperature and...