一、前言 水稻种子生活力通常都是以室内发芽试验来表示。但是,有些保持较高发芽率的种子,田间出苗率却很低,幼苗生长差。说明在发芽率降低以前种子内部已发生了很大的变化,已在劣变。因此发芽率并不能准确表示种子的质量。Stahl通过许多对比试验指出用发芽试验来测定种子在田 I. Introduction Rice seed vigor is usually expressed by indoor germination tests. However, some seeds, which maintain high germination rates, have very low emergence rates and poor seedling growth. Shows that the germination rate is reduced before the seeds have undergone great changes have been in the deterioration. Therefore, the germination rate does not accurately represent the quality of the seeds. Stahl pointed out through many comparative experiments that germination tests were used to determine the presence of seeds in the field