2.Plant Growth and development ·1)What is growth2 2)How plants grow? A.seed structure B.Requirements for seed germination C.seed germination and seedling forming 3 Development A.concept B.Developmental stages C.overlaping and periodic rule of growth and development ■RA D.The special characters and phenomenon during plant growth Copyright reseved by Long Mi 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?  A.seed structure  B.Requirements for seed germination  C.seed germination and seedling forming 3)Development A.concept  B. Developmental stages C.overlaping and periodic rule of growth  and development  D. The special characters and phenomenon  during plant growth  2.Plant Growth and development