内蒙古中温型草原带重要饲用植物细胞地理学研究

Study on Cytogeography of Important Forage Plants of Steppe Belt of Middle Temperate Zone in Inner Mongolia of China.

中国草原主要分布于中温带，内蒙古草原是我国中温带草原的主体。根据目前掌握的饲用植物染色体研究成果，对内蒙古中温型草原带森林草原亚带、典型草原亚带和荒漠草原亚带重要饲用植物的细胞地理学作了初步研究。结果显示：在三个草原亚带中多倍体饲用植物所占的比例不同，从东部的森林草原亚带至西部的荒漠草原亚带。

rassland in China is mainly distributed in the middle temperate zone, of which Inner Mongolia grassland is an important part. We primarily studied cytogeography of forage plants for subbelts of sylvosteppe, typical steppe and desert steppe of middle temperate zone in Inner Mongolia. The results showed that the proportions of polyploid forage plants for three steppe subbelts are different, and they have a decreasing tendency from eastern sylvosteppe to western desert steppe in Inner Mongolia.