【摘要】 通过对披碱草属牧草田间物候期的观测要求、原则、方法、记载内容及备注事项等内容进行总结和规范,以便撑握披碱草属牧草在一定区域内生长情况,物候期长短,生长发育进程,为选育和引进优良披碱草属牧草品种及其制订正确生产方案等提供规范措施。更多还原

【Abstract】 The records specification of Elymus L.grass in phenological period were formulated by summarizing measurement requirements,method,records content so as to understanding growth,phenological period,growth development of Elymus L.grass.This records specification provide standardized measure for breeding and introducing new Elymus L.grass varieties and developing correct production program.更多还原