Climate Effects

Maize is vulnerable to climate change and climate variability, particularly during its reproductive stage. Yields are particularly sensitive to water deficits during the flowering period, and farmers have noticed more frequent dry spells during the rainy seasons. Other changes in precipitation, particularly in growing season onset and length, also affect successful planting, growth and yield.

Maize does best under moderate temperatures, and its temperature range is greater than for rice. It has a higher ability to withstand cooler temperatures. Simulations reflect that maize is better suited in higher elevation zones than rice. In the lowlands, however, very warm minimum temperatures lead to higher respiration and less dry matter accumulation. Warmer minimum temperatures reduce maize yield while increasing its water demand.


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