The average value for upland cotton varieties in CCR exhibited the highest, amounting to 0.4407;

从区域来看，长江棉区的陆地棉品种间平均共祖度最高，达0.4407；

Upland cotton is not only a cardinal yield crop, but also the largest natural fiber crop in the world.

棉花是世界上重要的产量作物，也是最大的天然纤维作物。

Responses of main characters of upland cotton to mass selection-mass crossing breeding system were studied.

研究了陆地棉主要性状对混选—混交育种体系的响应。

Test error from measuring upland cotton fiber qualities on the HVI900 and its control were investigated in this paper.

对HVI900仪测试棉纤维品质的误差及其控制进行了研究。

The correlation among main yield and fiber traits of upland cotton with high fiber quality was investigated by using correlation and path analysis methods.

利用单相关、偏相关和通径分析等多种相关分析方法，研究了纺高支纱陆地棉主要产量、品质性状间的相关关系。