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This article in CS

  1. Vol. 20 No. 2, p. 244-246
     
    Received: Aug 20, 1979


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doi:10.2135/cropsci1980.0011183X002000020023x

Soil-Water Use by Semidwarf and Tall Winter Wheat Cultivars under Dryland Field Conditions1

  1. Fredrick S. Holbrook and
  2. J. R. Welsh2

Abstract

Abstract

An experiment was conducted to evaluate soil-water extraction patterns among two tall and three semidwarf winter wheat (Triticum aestivum L. em Thell.) cultivars in 1972 and 1973 under field conditions in eastern Colorado. Change in soil-water content was used as the indicator of root development and activity. Soil water was determined using neutron scattering at 2-week intervals at 30-cm increments to a depth of 270 cm during the growing season. The cultivars did not differ significantly for total amounts of water used or for water extraction patterns over tune and profile depths. Consequently, there was no relationship between semidwarfing genes and amounts and pattern of water uptake in the dryland winter wheat cultivars investigated.

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