Plants 489 Plant physiology 482 Plant pathology 450 History 356 Medicinal plants 336 Botany 326 Plant breeding 274 Plant Protection 244 Plant diseases 235 Biotechnology 149 Plant biotechnology 141 Plant disease 140 Dissertations, Academic (Ph.D) 133 PLANT 131 Peace 117 Plant Biotechnology 116 Medicinal Plants 111 Plant Propagation 111 Arts 110 Plant Breeding and Genetics 109 Plant propagation 109 India 102 History and criticism 96 Crop improvement 95 Agriculture 91 PLANT PHYSIOLOGY 84 Plant science 84 Plant protection 83 Plant ecology 82 PLANT BREEDING 79