Effects of the little of the dominant species on the seedlings growth of wheat in native grassland of farmingpastoral ecotone

The effects of the little of Stipa bungeana, Lespedeza davurica and Artemisia capillaries on the growth characteristics of wheat, including of the rate of seeding emergence, seedling height, and the dry matter (DM) weight in shoot sand roots in native grassland of farmingpastoral ecotone were studied in this paper. The results showed that, the little of S. bungeana had no significant effect on the rate of seeding emergence, root weight and the weight ratio of aboveground to underground of wheat (P0.05), whereas it had a significant effect on seeding height in the 2rd, 8 th, 12 th and 16 th after the little deposition (P0.05). Similarly, L. davurica and A. capillaries little had no significant effects on the rate of seeding emergence, seeding height and root weight of wheat (P0.05), whereas they had significant effect on the root growth of wheat (P0.05), which would increase the root weight of wheat and decrease its weight ratio of aboveground to underground. Thus, the seeding growth of wheat was different among the different species little, and was more sensitive to the response of the little of L. davurica and A. capillaries than S. bungeana.