新疆罗布麻生态类型及其纤维品质研究

新疆塔里木河及叶尔羌河流域是我国能够提供商品精干罗布麻的主要地区。由于野生罗布麻生长高矮不一，形态各异，与其纤维品质的相关性较大。通过40个株号的罗布麻植株形态和纤维长度等的的测定，分析各类型罗布麻的纤维长度和罗布麻植株各部分纤维长度情况。研究结果表明：罗布红麻高杆类型主茎纤维最长，罗布麻放牧类型纤维最短。罗布麻植株各部分纤维长度是主茎上的大于分枝，主茎中部的最长，基部和梢部最短。为野生罗布麻资源开发利用提科学依据。

Study on Ecotype of Apocynum in Xinjiang and Its Fiber Quality

The Tarim river and Yankand river valley is the main area providing commercial refined dry Kender in China.The fiber quality of Apocynum is greatly different due to its different height and shape.Through measurement of 40-number plants,this paper analyzed the fiber length of different types and parts of Apocynum.The results showed fiber length of main stem of long stalk type A.venetum is the longest and that of glazing type A.hendersonii Hook.f.the shortest.For the two varieties of Apocynum mentioned above,fiber length of main stem is longer than that of branch;fiber length of middle part of main stem is the longest and that of base and apex the shortest.These results will provide scientific basis for the development and utilization of Apocynum.