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Background : Boxthorn (Lycium chinense M. 2 n = 24) is a self-incompatibility crop of solanales. It can not be fertilized in the cultivation of single cultivars. Therefore it is necessary to select proper pollinizer. We developed a new variety, Cheonggeum, with Anthracnose-resistant and high yield. This experiment was carried out to select proper pollinizer through researching self-incompatible and Cross-compatibility.
Methods and Results : The self-incompatibility test of Cheonggeum was investigated fertilization rate and fruit Characteristics by artificial selfing fertilization. Investigation of fertilization rate and fruit characteristics by artificial fertilization was carried out to test cross-compatibility of Cheonggeum with Cheongwoon, Cheongmeong, Hokwang, Cheonghong and Cheongkwang. Self-fertilization rate of Cheonggeum was 11.1%, self-incompatibility. In flowering period, Cheongkwang, Cheonghong, Cheongmeong, Hokwang and Cheongwoon were early in order. Flowering period of Cheonggeum was June 18. When Cheonggeum was bred as seed parent, the fertilization rate of Cheongmeong and Cheonghong were high. When Cheonggeum was bred as pollen parent, the fertilization rate of Cheonghong and Hokwang were high. Cross-compatibility of Cheonggeum with Cheongkwang or Cheongwoon was low. Anthracnose on fruits in open field was strong in Cheonggeum, Cheongmeong and Cheonghong. The infection rates on leaves to Eriophys macrodonis Keifer was middle in Cheonggeum, Cheongmeong, Hokwang, Cheonghong and Cheongkwang. But it’s was high in Cheongwoon.
Conclusion : The proper pollinizer of Cheonggeum in open field was Cheonghong when considering flowering period, cross-compatibility, Anthracnose and Eriophys macrodonis Keifer.
