Effects of temperature and nitrogen at grain formation on wheat yields and grain nitrogen content
1996
Milosev, D. (Poljoprivredni fakultet, Novi Sad (Yugoslavia). Institut za ratarstvo i povrtarstvo)
A two-year trial using Mitscherlich's pots was established under semi-controlled and controlled conditions. The objective was to determine the effects of different nitrogen (N) rates and temperatures at grain formation and grain fill on the quality of several winter wheat genotypes. The effect of N applications proved to be extremely positive, but only up to a certain point. Which particular N rate turned out to be the optimum depended on the production conditions in that particular year. Temperatures above 30-35 deg C were shown to be very deleterious to wheat, causing premature ripening, the occurrence of blind seeds, poorly filled grains, low yields, and low yield quality. Grain N content increased with an increase in N rates, the highest being in the warmer greenhouse and the lowest in the cooler one.
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