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H.G. KIM(金熙坤),H.B. KIM(金興培),H.Y. KIM(金惠英) 한국육종학회 1978 한국육종학회지 Vol.10 No.2
Diploid Solanum species, diploid species-haploid S. tuberosum hybrid and tetraploid S. tuberosums were used for 4x-2x cross breeding method. 15 diploid bulk seed families and 26 diploid clones were planted to find clones with high yield and to find clones producing unreduced male gametes to cross to tetraploids. Two to 21 clones from 11 bulk seed families were saved among 15 bulk seed families to use as breeding materials. Two clones out of sixteen studied had more than 4% of unreduced diploid pollen and 14 clones had less than 1% of unreduced pollen. Four diploid clones were selected, because of high yield, in order to cross with FDR clones to transfer the FDR producing gene into them. 30 to 250 seeds were obtained in eleven 4x-2x cross combinations.
麥類의 屬間交雜에 關한 硏究 IV. 8倍體 Primary Triticale의 細胞學的 硏究
W. S. AHN(安完植),C. H. CHO(曺章煥),H. B. KIM(金興培),J. W. SHIM(沈載昱) 한국육종학회 1979 한국육종학회지 Vol.11 No.1
In the present investigation, cytological and genetical research on Primary Triticale hybrids between Triticum aestivum (Jugoku #81) and Secale cereale (Jaelae) was carried out. Fifty six chromosomes were observed in both mitotic and meiotic cells of Primary Triticale. The chromosomal behaviour of both mitotic and meiotic cells were more regular than that of F₁’s, especially in meiotic division. However, 79.1% of the meiotic cells had from 1 to 8 univalents.