ISHS Acta Horticulturae 620: XXVI International Horticultural Congress: Asian Plants with Unique Horticultural Potential: Genetic Resources, Cultural Practices, and Utilization
INVESTIGATION ON THE VARIATION OF WILD MALUS HUPEHENSIS VAR. PINGYITIANCHA |
| Authors: | X. Shen, J.B. Wang, Q.P. Wei, H.R. Shu |
| Keywords: | Apple, stock, POD, isozyme, biological characteristics |
| Abstract:
The distribution center of Malus hupehensis var. pingyitiacha is in Mt. Mengshan in Pinyi and Feixian county, Shandong Province. The field exploration concluded that Pingyitiancha has a very unique adaptability. This variety is distributed in many areas which have a wide range of mountainous environments. The botanical characteristics have not shown significant variations under the different environmental conditions because of their apomixis nature. The main distinctive characteristic can be found in its leaf area, where it could be divided into two groups; larger or smaller than 35 cm2. Isozyme analysis revealed that small- leaf group had 3 bands which did not exist in large-leaf group. Their Rfs were 0.26, 0.33 and 0.37. In addition, small-leaf group failed to show bands at Rf=0.57 as in the large-leaf group. The percentage of small-leaf group was only about 5% of the entire population. | |
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