文献类型： 外文期刊

作者： Xi, QG ¹ ; Greef, JM ² ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing R&D Ctr Grasses & Environm, Beijing 100089, Peoples R China

2.FAL, Inst Crop & Grassland Sci, D-38116 Braunschweig, Germany

关键词： Leymus chinensis;Special Blue;vegetative strain;landscaping

期刊名称：LANDBAUFORSCHUNG VOLKENRODE （ 影响因子：0.64； 五年影响因子：0.662 ）

ISSN： 0458-6859

年卷期： 2004 年 54 卷 4 期

页码：

收录情况： SCI

摘要： A vegetative strain gained by single plant selection and propagation, the Special Blue (SB) of Leymus chinensis, has excellent bluish color and unitary growth. The strain was found in a natural vegetation ((35.11degrees N.Lat., 110.59degrees E.Long). In contrast to the normal type of Leymus chinensis, this strain has morphological characteristics as: ripen spike brown, inner lemma shorter than outer lemma. The results of six years investigation shows that flowering time begins at the end of May and it continues for one week. At the beginning of June the population has a density of 1852 culm/m(2) and a spiking rate of 14.3% culms. The protein content of ground part is 12-21%. The hey yield is calculated to 4.56 t/ha under conditions without irrigation. The plants can be transplanted at anytime during a vegetation season and the transplants are 100% survival. Transplantation enhances the growth of rhizomes which extend outwards evenly after transplantation, reaching a distance of 2.09 m in average in one year and the rate of extending lowers thereafter. The maximal planting distance is calculated as 2.96 m. Mowing in the growing season disturbs the growth. In landscaping or gardening the plant gives unique beauty effect with its special bluish color in contrast to the fresh yellowish green background of the by-standing plants.