Forages:An Introduction to Grassland Agriculture Chapter 1:Plant growth and development Instructor: Long Mingxiu F■RA AMA Copyright reseved by Long Miitg 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 Forages: An Introduction to Grassland Agriculture Chapter 1: Plant growth and development Instructor: Long Mingxiu
Overview of Chapter 1 On completion of this chapter you should learn: 1.The basic structure of plant 2.Growth and development 3.Physiology (factors that affect plant growth and development Light M20 Photophosphorylation ■RA C02 Calvin-Bensor Copyri cycle al science,Northwest Agriculture 8 Sugar 百北农林科技大学动物科技学院草业
__________________________________________________________________ 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 On completion of this chapter you should learn: 1.The basic structure of plant 2.Growth and development 3.Physiology（factors that affect plant growth and development) Overview of Chapter 1
1.The basic structure of plant 1)Type of forage plants 2)Plant Structure and morphology F■RAG日 Copyright reseved by Long Mig 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.The basic structure of plant • 1)Type of forage plants • 2)Plant Structure and morphology
1)Type of forage plants By cotyledon子叶：Dicots>双子叶onocots.单子叶 By family:Legumes,Grasses,sedge莎草科、 Cruciferae-十字花科、compositae菊科等 By branch:rhizome,bunchgrass,stolone 。 By leaves distribution on plant:top grass,bottom grass,rosette shape By living years:annual,biennial,perennial grass By water requirements:drought tolearance, mediate、wet endure ■RAG 吧right reseved by LongM 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)Type of forage plants • By cotyledon子叶:Dicots双子叶 Monocots单子叶 • By family：Legumes ,Grasses ,sedge莎草科、 Cruciferae十字花科、compositae菊科等 • By branch:rhizome,bunchgrass,stolone • By leaves distribution on plant：top grass,bottom grass,rosette shape • By living years：annual,biennial,perennial grass • By water requirements：drought tolearance、 mediate、wet endure
1)Type of forage plants-continue By adaptable areas: Cool-season grass:A grass that grows best in spring and fall,blooms and sets seed in late spring or early summer,grows slowly or goes dormant in summer,greens up again in fall, and stays green into winter. Warm-season grass:A grass that does most of its growing in the hot summer,blooms and sets seed in the fall,and goes dormant when cold whether arrives. Copyright reseved by Long Miig 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 • By adaptable areas： Coolseason grass: A grass that grows best in spring and fall, blooms and sets seed in late spring or early summer, grows slowly or goes dormant in summer, greens up again in fall, and stays green into winter. • Warmseason grass: A grass that does most of its growing in the hot summer, blooms and sets seed in the fall, and goes dormant when cold whether arrives. 1)Type of forage plantscontinue