High humidity can cause many problems with ready-to-harvest crops including sprouting. Jason Kelley, Extension wheat and feed grains agronomist explains:
“For sprouting to develop we need three things to occur, warm temperatures, prolonged periods of wetness, and have grain that is fully mature and close to a harvestable moisture,” he said.
“We are likely looking at two out of the three criteria being met, and the question will be how mature the crop is,” Kelley said. “Grain that was not quite mature or high enough in moisture before rains started will be less prone to sprouting.”
Sprouted grain sorghum is heavily discounted by grain terminals or is not marketable.
“Corn may not be as impacted as grain sorghum, but we can still see sprouting of grain in the ear and development of ear molds, all of which impact grain quality and ultimately the price producers receive for their grain,” Kelley said. “A tight shuck cover on the ear can help shed water and protect grain quality.”
Sprouting can also occur in cotton, when seeds start to grow in the lint.
Ryan McGeeney writes for the University of Arkansas System Division of Agriculture.