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The physioecological characteristics and the leaf qualities for 27 Korean native lines of Chinese chive (Allium tuberosum R.) collected from all around South Korea were examined to get basic data for breeding and selection of good cultivars. Plant height, leaf area, leaf width and fresh weight were highest in ´Cheongdo´, ´Kimjae´ and ´Iri´ while ´Pocheon´ and ´Wonju´ were lesser. In the number of tillerings of 2-year-old seedlings, ´Andong´ and ´Buan´ had much more tillers. The leaf growth markedly increased at second harvest after cutting for the first crops in the middle of April. Leaf growth of the more than five-year-old plants was reduced compared with 3-year-old ones. ´Onyang´ and ´Kangjin´ flowered up to 40-50% on Aug. 16, 1994, whereas ´Nonsan´, ´Cheongdo´, ´Yeongam´ and ´Boseong´ did not reach anthesis until that time. The blooming periods were not accord with the bolting time. ´Taeanup´ and ´Iri´ yielded the highest number of seeds per umbel, and seed weights in ´Yeongam´ and ´Suncheon´. The seeds held for 29 months at room temperature germinated only 3.3% in ´Cheongdo´ and ´Iri´, 26.3% in ´Kampo´, and lost their viability over 60% after 17 months storage in ´Nonsan´, ´Iri´ and ´Kampo´ except ´Seogwipo´. No distinct difference was found in the shape of pollens and stomata observed by the Scanning Electron Microscope (SEM).
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