高产优质棉花新品种邯6208的选育过程及栽培技术要点

邯6208是邯郸市农业科学院棉杂优研究室选育的常规抗虫棉花新品种。该品种高产,优质,抗病虫。2003年和2004年参加冀中南春播棉组区试,皮棉产量分别为1 332.0 kg/hm2和1 396.5 kg/hm2,分别较对照(2003年为新棉33B,2004年为DP99B)增产15.4%和20.6%;霜前皮棉产量分别为1 212 kg/hm2和1 305 kg/hm2,分别较对照增产16.9%和26.5%。2005年冀中南春播棉组生产试验,皮棉产量、霜前皮棉产量分别为1 357.5 kg/hm2和1 297.5 kg/hm2,分别较对照DP99B增产13.2%和16.1%。2005年经农业部棉花品质监督检测中心检测,纤维上半部平均长度28.5 mm,整齐度指数83.1,马克隆值5.0,比强度28.3 cN/tex,伸长率6.9%,反射率75.2,黄度7.8,纺纱均匀指数127。综合表现突出。

Breeding of High Yield and High Quality New Cotton Variety Han 6208 and Its Cultivation Techniques

Han 6208 was a new insect-resistant cotton variety bred by Handan Academy of Agricultural Sciences with the characteristics of high yield,high quality and disease or pest resistance.In the regional tests of middle and south of Hebei in spring in 2003 and 2004,the lint yield was 1 332.0 kg/hm2and 1 396.5 kg/hm2,which increased by 15.4% and 20.6%,respectively.The lint yield before frost was 1 212 kg/hm2 and 1 305 kg/hm2,which increased by 16.9% and 26.5%,respectively.The lint yield and lint yield before frost were 1 357.5 kg/hm2 and 1 297.5 kg/hm2 in the production test in 2005,which were increased by 13.2% and 16.1%,respectively.The mean length of upper half was 28.5 mm,the uniformity was 83.1,the micronaire value was 5.0,the fiber strength was 28.3 cN/tex,the elongation ratio was 6.9%,the reflectivity was 75.2%,the yellowness was 7.8,and the index of uniformity of spinning was 127.