苎麻新品种湘饲纤兼用苎1号选育

湘饲纤兼用苎1号是从地方品种咸丰大叶绿的自然变异单株中系统选育的新品种,既可以作为饲用苎麻栽培也可以作为常规纤维用苎麻栽培。2年5点饲用区域试验结果显示:鲜产量为123148.9~138624.7kg/hm^2,平均鲜产量131936.9kg/hm^2,比对照增产17.15%~20.34%,且丰产稳产性好;粗蛋白含量在22.5%,优于对照,粗纤维含量18.5%、粗脂肪含量6.5%、灰分含量13.6%、钙含量3.6%,均低于对照,磷含量0.4%左右,与对照无差异。纤维用区域试验结果显示:平均纤维产量2599.5kg/hm2,比对照平均值低5.2%左右;生产试验平均纤维产量为2676kg/hm2,减产6.5%以内;平均纤维支数2394.8支,比对照湘苎3号和中苎1号分别提高15.22%、22.06%。表明湘饲纤兼用苎1号是一个高产优质的饲纤兼用苎麻新品种。

Breeding of New Ramie Cultivar Xiang Sixianjianyong Zhu No.1

Xiang Sixianjianyong Zhu No.1 was a new variety which was selected from nature mutation stock of local variety Xianfeng dayelü.This variety can be cultivated as forage ramie and regular fiber ramie.The results of 2-year 5-point regional forage ramie trial showed that:The fresh yield of the regional test was 123 148.9-138 624.7 kg/hm^2,the average yield was 131 936.9 kg/hm^2,which increased by 17.15%-20.34% compared with the CK,and the high-yield traits are stable.The crude protein was 22.5%,higher than that of CK.The content of crude fiber,crude fat,ash,Ca was 18.5%,6.5%,13.6% and 3.6%,respectively,all lower than that of CK.The phosphorus content was about 0.4%,with no difference compared with CK.The average fiber yield was 2599.5 kg/hm 2 in regional trials,lower than that of CK by about 5.2%.The average fiber yield achieved 2676 kg/hm 2 in production trials,which decreased 6.5% or less.The average fiber counts were 2394.8,increased 15.22% compared with Xiangzhu No.3 and 22.06% with Zhongzhu No.1.The results indicates that Xiang Sixianjianyong Zhu No.1 is a new fiber-forage dual-purpose ramie of high yield and good quality.