The Preliminary Study On The Introduction And Acclimatization Of Pyrola Incarnata

The resources of genus Pyrola L. in the world and in China are described and the foreground of landscape usage is presented. With plant materials of Pyrola incarnata, the biological and ecological characteristics were studied.1. Over 30 species of genus Pyrola L. are distributed in the boreal and temperate regions of the northern hemisphere and in the most of Chinese provinces except Ningxia Province and Hainan Province. Distributed in Beijing area with the features of being evergreen, less than 30cm tall and blooming in summer, Pyrola calliantha, P. incarnata and P. japonica could rightly meet the shortage of evergreen and ground cover plants in Beijing gardens.2. Some primary studies of ecological characteristics showed: Pyrola incarnata grows well in the range of 5% to 15% relative illumination strength, 15.36% to 58.64% water content of soil, in soil with rich organic fertilizer (16.47% content of organic matter in original soil), and in 14C-18C/24C-29C environmental temperature. According to the electric conductivity method and the growing recovering test, we found that the half lethal temperature of Pyrola incarnata is 44.1C.3. The primary studies showed that the introduction of Pyrola incarnata was a tough work. Several cultivation ways are introduced: to be planted under the shade of thickets and woods together with other ground covers; to partly change soil with rich organic fertilizer to improve soil construction and water containing ability; to keep proper soil humidity by watering timely and avoiding land water logging.4. The future works on the introduction of Pyrola L. are suggested: the introduction of Pyrola callianta; the study on the micro propagation of Pyrola incarnata; the seeds collection and the propagation test with seeds of Pyrola incarnata.