Field Crops, (New March 2000) 5 Plant Production 4 Beta vulgaris var. saccharifera 3 History 3 Horticultural Crops, (New March 2000) 3 Organic chemistry 3 Plant Breeding and Genetics 3 Saccharum 3 Saccharum officinarum 3 Sugarbeet 3 Sugarcane 3 Barley 2 Biotechnology 2 Bulgarian Literature 2 Chemical composition 2 Chloroplasts 2 Crop Produce 2 Crop production 2 Crop yield 2 Field crops 2 Food Composition and Quality 2 Genetic Engineering 2 History and criticism 2 Hordeum vulgare 2 Industrial Wastes and Effluents 2 Irrigation 2 Mathematical statistics 2 Plant Composition 2 Plant Pests, (New March 2000) 2 Plant Wastes 2