摘要
本文对国内外120份低酚棉品种资源和91份高酚棉品种资源的纤维长度、比强度、麦克隆值、纤维整齐度比和纤维伸长率5项主要纤维品质指标进行了分析,其目的在于了解我国所掌握的低酚棉纤维品质现状和水平。结果表明,低酚棉品种(系)的2.5%跨距长度总体平均为27.9mm,属27mm 级别。但最大值为30.8mm,可达31mm 优质级别。纤维比强度总体平均为20.8g/t(?)x,属低强力范围,而最大值达到了高强力的标准。麦克隆值总体平均值超出正常范围,最小值为4.0,属于成熟度良好、细度中等范围。本文对上述5项指标全部进行了变异范围、标准差、变异系数等参数的分析。比较国内与国外的低酚棉及高酚棉品种(系)各项纤维品质指标,国内育成的低酚棉品种(系)纤维长度较国外育成的品种(系)略长。比强度低于国外育成的品种(系)。对我国各省份(或育种单位)育成的低酚棉品种(系)的5项纤维品质指标进行比较,结果为纤维长度和比强度以中棉所育成的品种(系)较优。
The measurement of the fibre length,strength,micronaire value,uniformity and elongation was made with 120 low gossypol varieties(lines)and 91 glanded cottons.The result indicated that the averages of 2.5% spanlength,fibre strength,micronaire value of low gossypol cottons were27.9mm,20.8g/tex and 5.5mg/inch,respectively,and were inferior tothose of glanded cottons.The comparison study showed that the fibrelength of China-bred low gossypol varieties(lines)was longer,but thestrength was lower than that of foreign cottons.The fibre properties oflow gossypol cottons from different provinces of China were also comparedand analyzed.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
1993年第1期1-7,共7页
Journal of Hebei Agricultural University
关键词
低酚棉
品种资源
纤维品质
棉花
pigment glandless cotton
germplasm resource
fibre quality