By Onduru Davies D.   Du Preez Chris C. C.   in The International Journal of Sustainable Development and World Ecology

ISSN:1350-4509|15|2|145-152

Taylor & Francis Ltd‎(2008)‎

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By Onduru Davies D.   du Preez Chris C.   de Jager Andre   Muya E. M.   in Journal of Crop Improvement

ISSN:1542-7528|21|1|79-100

Taylor & Francis Ltd‎(2008)‎

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