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WATER UPTAKE AND USE BY MORPHOLOGICALLY CONTRASTING MAIZE/PEA CULTIVARS IN SOLE AND INTERCROPS IN TEMPERATE CONDITIONS

Published online by Cambridge University Press:  13 April 2005

R. A. L. KANTON
Affiliation:
School of Plant Sciences, The University of Reading, P.O. Box 221, Reading, RG6 6AS, UK
M. D. DENNETT
Affiliation:
School of Plant Sciences, The University of Reading, P.O. Box 221, Reading, RG6 6AS, UK Permanent address: Savanna Agricultural Research Institute, P.O. Box 52 Tamale, Northern Region, Ghana.

Abstract

Growth and water use of sole crops and intercrops of morphologically contrasting maize and pea cultivars were measured in two years. The maize cultivars were Nancis with erectophile and Sophy with planophile leaves and the pea cultivars Maro a leafy pea and Princess a semi-leafless pea. In the first part of the season water use was lower for sole maize but intercrops and sole pea used similar amounts of water. By 90 days after sowing, when peas had matured, all crops had used similar amounts of water. Maize had slightly greater water use efficiency than peas. Cultivars Nancis and Princess tended to have greater water use efficiency than Sophy and Maro respectively. Intercrops produced more dry matter than sole crops and therefore had consistently greater water use efficiencies.

Type
Research Article
Copyright
© 2004 Cambridge University Press

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