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감자의 倍數性 變化에 따른 生育 및 收量關聯形質의 發現
Hyun Mook Cho(趙賢默),Sao Yong Ahn(安手鏞),Hei Young Kim-Lee(金惠英)Hwa Yeong Kim(金和泳) 한국육종학회 1994 한국육종학회지 Vol.26 No.2
The differences in expression of quantitative characters related to top growth and tuber yield of dihaploid(2n=2x=24), triploid(2n=3x=36) and tetraploid(2n=4x=48) potato progenies derived from interspecific crosses were investigated. Plant height and stem diameter among top growth characters and tuber size among tuber characters were significantly reduced according to the downward alteration of the ploidy levels of progeny plants. The terminal leaf index and the weights of tops and tubers of the dihaploid plants were significantly reduced as compared with those of the triploid or tetraploid plants as well, but no significant differences in the numbers of stems and tubers per plant due to the different ploidy levels were shown. However, all quantitative characters related to the top growth and tuber yield of progeny plants affected by ploidy differences showed relatively large variations among not only ploidy levels but also clones in the same ploidy levels.