不同行距对陆地棉品种纤维品质性状的影响(英文)

本研究于2006―2007年度在费萨拉巴德农业大学农业研究试验场进行,试验目的是为了比较三个不同品种陆地棉在不同的行距下的性状质量。试验处理包含三种行间距(60cm、75cm和90cm)和三种不同陆地棉品种(NIAB-111,CIM-496与FH-901)。所有的实验数据均进行变异系数的统计学分析。试验结果显示,行距显著影响GOT值,但是对纤维长度、纤维比强度、纤维整齐度和纤维细度没有影响。三种陆地棉品种之间在纤维长度、纤维比强度和纤维细度上存在显著差异,而在纤维整齐度和GOT上没有显著差异。

黄麻种间杂种F_4的产量和纤维品质及抗病性测定

以圆果种ＲＲ－５（ＣｏｒｃｈｏｒｕｓｃａｐｓｕｌａｒｉｓＬ．）作母本，长果种（ＢＬ／７７－１９）Ｆ－１（Ｃ．ｏｌｉｔｏｒｉｕｓＬ．）作父本的种间杂种Ｆ＿４的６种类型为材料，作了产量、纤维品质和抗病性测定。结果表明，不同类型的表现不同。其中３种类型的麻皮产量、株高显著超过双亲；２种类型具有高度抗病性；以及全部类型的纤维强度都超过双亲。作者认为，通过圆果种／长果种的种间杂交能够获得高产、优质及高抗的材料，特别在纤维强度方面可能取得突破。

Correlation Analysis on Main Agronomic Traits and Yield and Quality of Hybrid Cotton

ObjectiveThis study aimed to analyze the correlations of the main agronomic traits, yield and quality of hybrid cotton cultivars. MethodThe growth period, main agronomic traits, yield components, yield and quality of 13 hybrid cotton cultivars were compared, and the correlations of their main agronomic traits, yield components, yield and quality were analyzed. ResultThe growth period of the 13 cultivars was about 123 d, and all of them presented strong growth potential throughout the growth period. The ginned cotton yield shared an extremely significant positive correlation with the first fruiting branch position, plant height, number of fruiting branches, number of bolls per plant, number of bolls per hectare and seed cotton yield; the first fruiting branch position and micronaire value shared a significant positive correlation. Keza No.1 and Chunzamian No.1 had the lowest micronaire value, 4.5. The specific strength of all the cotton cultivars ranged from 27 cN/tex to 30 cN/tex, presenting significant difference. In addition, there was extremely significant difference in the ginned cotton yield among all the cotton cultivars. ConclusionThe study provides theoretical reference for the cultivation of high-yield hybrid cotton.