Water-deficit stress during the reproductive period in corn can increase the interval from silking to pollen shed and reduce kernel number and/or weight. The most critical period for irrigating corn is from approximately one week before to two weeks after silking. Even within this period, the exact effect of water deficits depends on timing and duration. For example, water deficits at seed set may result in a low number of seeds, and water deficits after seed set may result in a high ...

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