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S Illinois | Your way overestimating the importance of seeing a 18X50 or 20X50 ear thrown vs a 14X45 or 16X40. 16X40 can 250bu corn everyday of the week if weather cooperates later in the season. Curling in the heat of the day in the afternoon will not cause the plants to all of the sudden shoot a 8X20 ear. The problem is those who are getting the dryness and heat have hardly ever seen the type of heat and dryness at this stage of plant growth. When it hits 92+, low humidity and wind, no amount of soil moisture will keep a corn plant from trying slowing respiration through its leaves. There is a reason GDU's calculations use 86 as the max temperature. Anything above that begins the tradeoff of sugar creation and a plant trying to protect itself and conserve moisture. If the plants are unfurling by 5-7 at night, absolutely zero potential has been lost. | |
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