FIGURE 2 Effects of Elymus nutans extracts on growth of
highland crops. Values are mean ± SD (n=5). Different letters denote
significant differences between treatments with a > b
> c > d, the same below.
The allelopathic effect response index and comprehensive allelopathic
effect response index of drooping wildryegrass on the tested crops
presented in Figure 3. The
inhibition of the extracts on hulless barley and oat occurred in
germination with germination allelopathic index of -0.391 and -0.210,
respectively. Wheat, quinoa and rape occurred in seedling growth with
growth allelopathic index of -0.173, 0.097 and -0.177, respectively. Oat
exhibited the largest comprehensive allelopathic index of -0.265, and
quinoa presented the smallest one -0.068.