The wild Gentianopsis paludosa resources of Tanchang County, Gansu

doi:10.11686/cyxb2014427

Abstract

Abstract: The wild Gentianopsis paludosa resources in Tanchang County were comprehensive surveyed in order to further explore the distribution and abundance of this species. Survey and sampling techniques followed those published in the Nationwide Chinese Medicine Survey technical notes. 1060 small sample plots and 265 permanent sample plots at 53 sample sites representing seven ecological zones were collected. Wild G. paludosa was found in eleven permanent sample plots and twenty six small sample plots representing three ecological zones and three sampling sites. Plants were distributed over an area of 1.27 ka containing 3474.36 kg of medicinal material, 2605.77 kg of economically valuable material and 912.02 kg of permitted annual harvest. The Shannon-Weaver diversity index of quantitative characteristics ranged from 2.11 to 2.86 resulting in 23.08%-61.83% of the variation coefficient for ten agronomic traits; lateral root numbers had the greatest and leaf numbers the least influence. Increasing altitude (2234 to 2699 m) resulted in greater flower numbers, stem diameter, plant height, fresh weight and dry weight per plant. It is concluded that wild G. paludosa has high genetic diversity but is not widely distributed suggesting that measures should be taken to protect this valuable resource.

ZHOU Chuan-Meng, CHEN Yuan, GUO Feng-Xia, YANG Hui-Zhen, ZHANG Xue-Jun. The wild Gentianopsis paludosa resources of Tanchang County, Gansu[J]. Acta Prataculturae Sinica, 2015, 24(9): 1-9.

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