Plant growth 68 Plant Growth 45 plant growth 25 PLANT GROWTH AND DEVELOPMENT 18 Plant growth substances 10 plant development 10 Natural auxins 9 PLANT GROWTH 9 Plant growth regulators 9 Horticulture 5 Gibberellins 4 Plant development 4 Plant physiology 4 Crop production 3 Genetics 3 Horticultural Crops, (New March 2000) 3 Photosynthesis 3 Plant - Growth 3 Plant Anatomy 3 Plant Cell 3 Plant Metabolism 3 Plants 3 Water deficit 3 experimental physiology 3 photosynthesis 3 plant-assimilation 3 plant-chemical modification 3 Assimilation 2 Botany 2 Crop Produce 2