Yield and Water Use Relationship of Proso Millet. Panicum Miliaceum L, At Four Planting Spacings .Ii: Water Extraction Pattern And rooting Density•

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Date
1986
Authors
Lenga F. K.
Hanks2 R.J
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Abstract
A vast amount of literature has appeared that describes root water uptake investigations For various crops, except millet, growing under different: conditions. Rose and Stern (1967) working with cotton (Gossypium hirsutum L.)Showed halt the maximum rate of water extraction by roots was between the soil surface and 25cm, and that: the, rates were relatively low below 30 cm. Aliaifa roots drew Water from the lower part of the root zone where soil matric potentials were -7 to -10 bars At the same time as they did from the upper part of the soil Where the potential was greater than-2 bars (Kohl and Kolar, 1976). It appeared that root water uptake was a function of root density in a given layer and also of the difference between plant and soil water potential
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East African Agricultural And Forestry Journal, 51 (No 3), p. 155-167