The degradation on cultivated Gastrodia populations and prevention measures

Objective: To propose views and concepts on the degradation of cultivated Gastrodia populations.Methods: The differences between natural and cultivated Gastrodia populations were compared and discussed in terms of their biological features,qualities and yields.Resuts: There were changes and degradation in biological features and some important properties of yield in cultivated Gastrodia.Conclusion: The direct reason of cultivated Gastrodia degradation is the ecological disturbace of forests and the decreasing amount of natural Gastrodia populations;The indirect reason is manual pollination and other changes of the natural growing environment.