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Abstract

 

This article in AJ

  1. Vol. 60 No. 2, p. 234-236
     

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doi:10.2134/agronj1968.00021962006000020027x

Response of Corn to White and Black Ground Covers1

  1. J. K. Aase,
  2. W. D. Kemper and
  3. R. E. Danielson2

Abstract

Abstract

Corn was grown in rows between sloping concrete slabs painted either black or white. Grain yields were highest for the black concrete treatment. Transpiration was increased about 40% by the white concrete treatment.

With white surfaces, leaf temperatures were about 1 C higher and reflected radiation was five to six times greater compared to black surfaces. Corn leaves sampled adjacent to black concrete contained 40% more chlorophyll than corn leaves sampled adjacent to white concrete.

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