Germination and Emergence When water is absorbed,radicle胚根grows through the coleorhiza胚根鞘，seminal roots develop Epicotyl上胚轴elongates and grows toward the soil surface Coleoptile胚芽鞘(tip)pushes through the soil and reaches surface,then opens for true leaves to emerge Germination Events 4DAP Plumule Lateral seminal Radicle root roots F■RAEE Tip of kernel RLNiolsen,Purdue Univ..2000 PLong Mg College of animal science,Nornwest Agrcunure rorestry oniversity 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  Germination and Emergence • When water is absorbed, radicle 胚根grows through the coleorhiza胚根鞘, seminal roots develop • Epicotyl上胚轴 elongates and grows toward the soil surface • Coleoptile 胚芽鞘(tip) pushes through the soil and  reaches surface, then opens for true leaves to  emerge