Chinese feral begonia belongs to plant sort to abound, many sort are had very tall view and admire value, can develop directly for curtilage ornamental plant, a lot of sort hold officinal value concurrently, partial sort is returned but edible, floral protection and development are belonged to to use a respect to have important place in international begonia, long-term since pay close attention to for common people place all the time. But the domestic research to begonia basically is centered in systematic taxology respect before, and feral to should belonging to floral the systematic research of kind of qualitative resource protection is not much.
Most homebred begonia is Chinese place peculiar, a lot of sort distributing for narrow region, exist in mode producing area only or only a few fragmentary the small Ju Qun that distributing. Except sort of a few bulb opposite cold-resistant is able to bear or endure outside drought, most begonia belongs to a plant to like shade the Chang Lukuo Xie Lin of good, block shade unloads wet, drain off water, on brook curb wall, the lime karst mouth of a cave with chute edge, running water or wet nether world on cliff. Once its live,the environment is destroyed, these sort are met extinct. How can belong to plant species to pledge resource undertakes be protectived effectively to feral begonia truly, below the condition that protects in ground of the change in arboretum especially, how to make begonia belongs to plant species qualitative resource be able to long-term and effective save, be developed to use reasonably, this is what at present we are faced with and the problem that must solve. In the meantime, this also is the common difficult problem that at present domestic and international arboretum faces.
The system of optimal protection technology that still lacks a complete and effective begonia domestic and internationally to belong to plant species to pledge resource falls in artificial condition at present. As kind increase what qualitative resource collects ceaselessly, it is more and more difficult to save the job (outside removing the protective method with corresponding lack and measure, return body to save space and respect of labor material resources now) . The introduce a fine variety that uses generally at present saves a method to still be confined to simple introduce a fine variety. Its save a method extensive of onefold, measure, outside dividing the land with much need and resource of manpower material resources, suffer the descent of all sorts of natural disaster easily still. As a result of because drop in temperature suddenly, save a method undeserved or the element such as plant diseases and insect pests causes many phyletic death and need goes to field new introduce a fine variety. Phyletic repetition introduce a fine variety (or say to update introduce a fine variety) difficulty of natural to those multiply, distributinging stricture, plant group of amounts are exiguous and those sort that cannot gain a seed, certainly will builds didymous and feral resource to damage. Additional, change ground protection is planted as a result of what compose builds group of dimensions are lesser and the amount is limited, often bring about those who reside group of genetic diversity to lose, still can nod the habitat difference with Proterozoic to bring about because of transplant at the same time kind group lose ego to maintain increase capacity with enlarge, make plant group of inbreeding opportunities and extinct probability increase. String 3
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