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The use of soybean leaflet angle data for irrigation scheduling

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Summary

The feasibility of scheduling soybean [Glycine max (L.) Merr.] irrigation by using terminal leaflet angle data was evaluated by simultaneously measuring the angles to the horizontal of the uppermost terminal leaflet and soil moisture contents on plots with different soil moisture regimes during and following a drying cycle. Severe water stress was avoided. The percentage of leaflets with an angle greater than or equal to 45 degrees correlated significantly with both water content in the top 0.45 m of soil and the ET/Epan ratio.

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Authors and Affiliations

  1. Water Research Commission, seconded to the Soil & Irrigation Research Institute, Private Bag X79, 0001, Pretoria, Republic of South Africa

    A. D. Wright & P. R. Berliner

Authors
  1. A. D. Wright
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  2. P. R. Berliner
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Wright, A.D., Berliner, P.R. The use of soybean leaflet angle data for irrigation scheduling. Irrig Sci 7, 245–248 (1986). https://doi.org/10.1007/BF00270434

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  • DOI: https://doi.org/10.1007/BF00270434

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