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根据湖南农学院苎麻研究所近20年的研究,结果表明:a.不同品种的苎麻纤维支数有显著差异,高支数品种与低支数品种间相差可达1500支以上;b.苎麻不同生长期与纤维支数关系很大,最早一期收获与最迟一期收获二者纤维支数相差达1～1.5倍;c.苎麻解剖结构,过氧化物酶同工酶关系密切,单纤维细度和强力受纤维细胞直径和壁厚的共同作用表现为纤维细胞壁截面积大小的制约,优质高产苎麻品种的茎截面解剖特点是单个纤维细胞壁截面积较小,而茎内纤维细胞数目较多,类型I的苎麻品种C区酶带活性强,纤维支数高;d.不同海拔高度与苎麻单纤维支数成正相关,单纤维支数随着栽植密度而增加;e.土壤缓效钾与纤维支数,土壤速效钾与产量均呈显著正相关,纤维支数随着施氮量增加而降低,硼肥和螯合稀土能提高纤维支数;f.种子繁殖显著降低产量和纤维支数;g.提高苎麻纤维支数的措施是,采用无性繁殖、严禁种子繁殖,实行良种区域化,一地一种,以及经济施肥和配方施肥。
According to the ramie institute of Hunan Agricultural College nearly 20 years of research, the results showed that: a. The ramie fiber count of different varieties were significantly different, high-count varieties and low-count varieties up to a difference of more than 1500; b. Ramie different The growth period is closely related to the number of fiber, the difference between the number of fiber in the first harvest and the last harvest is 1 ~ 1.5 times; c. The anatomical structure of ramie is closely related to the isoenzyme of peroxidase, The fineness and the strength are affected by the diameter and wall thickness of fibroblasts, which is restricted by the cell wall cross-sectional area. The anatomical characteristics of stem section of high-quality and high-yielding ramie varieties are that the cross-sectional area of single fiber cell wall is smaller and the number of stem cells is more , Type I of ramie C area with strong activity, high fiber count; d. Different altitude and ramie single fiber count is positively related to the number of single fiber with the planting density increased; e soil slow-acting potassium and Fiber count, soil available K and yield were significantly and positively correlated, fiber number decreased with the increase of nitrogen application rate, boron fertilizer and chelated rare earth can increase the fiber count; f. Seed production significantly reduced the yield and fiber count ; g ramie fiber branch The number of measures is the adoption of asexual reproduction, the prohibition of seed multiplication, the implementation of regionalization of fine varieties, a type of land use, as well as economic fertilization and formula fertilization.