The Effect of Shading Interference on Photosynthate Distribution of Natural Leymus Chinensis Ramet Population

The effects of four shading treatments,namely,0%(CK),30%(S1),50%(S2)and 70%(S3) on photosynthate distribution of natural Leymus Chinensis ramet population were studied.The results showed that shading influenced the content of sugar in the organs of Leymus Chinensis.There was significant difference in the content of sugar in the aboveground culms,sheath,leaf and rhizomes.The sugar contents in other organs also showed certain changing tendencies.In addition,experiments showed that the total content of photosynthate in the S1 was the highest.The content of sugar and biomss of spike in S3 were the highest.From the experiment results,there was a significant tendency of mutualism and reproduction in clonal plants under the interference of environment.