Plant Propagation 111 Plant propagation 109 Crop improvement 74 plant layering 60 plant harvesting 59 Plant Breeding 16 Plant breeding 15 Horticultural Crops, (New March 2000) 8 Plant Breeding and Genetics 8 plant breeding 8 PLANT PROPAGATION 7 Plant Production 7 Propagation 7 Crop Produce 6 Plant Pests, (New March 2000) 6 Plant diseases 6 Plant pests 6 Taxonomy 6 Cultivars 5 Plant Physiology and Biochemistry 5 Plants 5 Viral, Bacterial and Fungal Diseases of Plants, (New March 2000) 5 crop improvement 5 plant propagation 5 Biotechnology 4 Cultivation 4 Food Composition and Quality 4 Food Storage and Preservation 4 Fruits 4 Genetic Engineering, Gene Transfer and Transgenics, (New June 2002) 4