Effect of Soil Temperature on Corn Plant Development and Yield: II. Studies With Six Inbred Lines
1963
Jones, J Benton | Mederski, H. J.
Six inbred lines of corn were grown in the field under heated and normal soil conditions. Heating was accomplished using electric heating cables placed under the row. Heating had a marked effect upon the early growth rate and uptake of K, P, and Ca. Heating tended to shorten the period from emergence to silking. All of the inbred lines on the heated rows were shorter than those in the unheated rows at maturity. A differential yield (ear and fodder) response to soil heating was obtained among the inbreds. The differential response among the inbreds may explain why varying yield responses to soil heating which have been obtained in different investigations. Inbred lines may be unique plants to use for determining the factors related to the heat stimulus effect.
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