The heritability in the broad sense for WS AX content was more than 95% for two sets of cultivars, so arabinoxylan content may be improved by means of genetic breeding.

• 冬、春小麦的水溶性阿拉伯木聚糖含量的广义遗传力均大于95%25，通过遗传育种的方法改良小麦阿拉伯木聚糖含量是可行的。