The ten main agronomic characters of twenty-seven rice varieties was investigated in this experiment in yellow river irrigation areas of Ningxia.

• 摘要分别考查了宁夏引黄灌区27个水稻品种的10个主要农艺性状，对达到显著差异的7个性状进行主成分分析，并对影响单株粒重的6个性状进行通径分析。