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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 selsected good line, Cheongyang 26, 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 Cheongyang 26 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 Cheongyang 26 with Cheongwoon, Hokwang, Cheongdang, Cheonghong, Cheongkwang and Cheonggeum. Self-fertilization rate of Cheongyang 26 was 19.3%, self-incompatibility. In flowering period, Cheongkwang, Cheonghong, Hokwang, Cheongyang 26 and Cheongdang were early. The fertilization rate of Cheongkwang, Cheonggeum, Cheongwoon, Hokwang and Cheongdang in order was high when Cheongyang 26 was bred as seed parent. The fertilization rate of Cheonggeum, Hokwang, Cheongwoon and Cheongdang in order was high when Cheongyang 26 was bred as pollen parent. Cross-compatibility of Cheongyang 26 and Cheonghong was very low because of inbreeding. Anthracnose on fruits in open field was strong in Cheongyang 26, Cheonghong and Cheonggeum. The infection rates on leaves to Eriophys macrodonis Keifer was high in Cheongyang 26 and Cheongwoon.
Conclusion : The proper pollinizer of Cheongyang 26 in open field was Cheonggeum when considering flowering period, cross-compatibility, Anthracnose and Eriophys macrodonis Keifer. In rain-shelter plastic greenhouse, the proper pollinizer of Cheongyang 26 was Cheongwoon because it’s able to prevent Anthracnose in rain-shelter plastic greenhouse.
