Plant Biotechnology 14 Biotechnology 8 Field Crops, (New March 2000) 5 Plant Breeding and Genetics 5 Agronomy 4 Cassava 4 Manihot esculenta 4 Biological Resources (Plant) 3 Department of Plant Biotechnology 3 Plant Production 3 Plant breeding 3 Plant genetic resources 3 Plant physiology 3 Agricultural Economics 2 Agricultural Statistics 2 Agriculture 2 Barley 2 Biotechnology (General), (Revised June 2002) 2 Colocasia esculenta 2 Crop Produce 2 Diplomatic history 2 Dissertations, Academic (Ph.D) 2 Food Composition and Quality 2 Hordeum vulgare 2 MPhil Theses 2 Maize 2 Millets 2 Nineteen seventeen, A.D. 2 Pearl millet 2 Pennisetum glaucum 2