优质棉品种(系)的纤维品质差异性研究

Study on Fibre Quality Difference of Various High Quality Cotton Varieties (Lines)

系统研究了棉花高强纤维、长纤维和长强纤维配套材料的年度间及果枝部位间的品质差异 ,结果表明 :( 1 )棉株中下部纤维品质比较稳定 ,上部果枝纤维品质变异较大 ;( 2 )长纤维材料较其它两类材料具有较好的纤维品质稳定性 ;( 3)与 2 0 0 1年相比 ,2 0 0 2年度优质棉纤维品质明显下降 ,2 0 0 3年纤维长度好于 2 0 0 2但低于 2 0 0 1年 ,比强度继续下降 ,马克隆值变化较小。

Using various cotton varieties(lines), fibre quality on different fruit branching parts and different years was comparatively studied.Results showed that (1) fibre quality on middle and lower fruit branches were steady and that on upper part was poor.(2) the long fibre types was more steady in quality than other types.(3) compared with year 2001,fibre quality decreased obviously in 2002.Comparing with 2002,fibre length was longer and specific strength was lower in 2003 and micronaire remain unchanged