2.Plant Growth and development 1)What is growth? 。 2)How plants grow? Starting Point-the seed Cell division Differentiation(分化)-tissues and organs Meristems(分裂组织)-shoot and root Repeating segments-the basis of plant form and function. Vegetative growth营养生长 ■RAE Reproductive growth生殖生长 Copyright reseved by Long Mid College of animal science,Northwest Agriculture Forestry University 西北农林科技大学动物科技学院草业科学系 __________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University  西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu • 1)What is growth? • 2)How plants grow? • Starting Point – the seed • Cell division • Differentiation（分化） – tissues and organs • Meristems(分裂组织） – shoot and root • Repeating segments – the basis of plant form and function. • Vegetative growth营养生长 • Reproductive growth生殖生长 2.Plant Growth and development