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This article in CS

  1. Vol. 14 No. 6, p. 839-841
    Received: Apr 22, 1974

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Effect of Light Intensity on the Development of Field Grown Soybeans1

  1. D. J. Major and
  2. D. R. Johnson2



Effects of light intensity on days to flowering and postflowering development were recorded on two soybean [Glycine max (L.) Merr.] cultivars from each of the Maturity Groups I to V. A light intensity gradient was produced by a row of lights at one end and perpendicular to rows 25.2 m long. Lights were left on continuously from planting until maturity. Light intensities along the rows ranged from 2 to 100 lux. Days from planting to flowering, final plant height, and internode number increased as light intensity increased but no detectable effects of light intensity were observed on days from flowering to beginning pod fill, flowering to the termination of flowering, flowering to maturity, or final seed yield.

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