主要 在來種 찰옥수수 自殖系統과 交雜種들의 特性 및 組合能力

In order to substitute sweet and super sweet maize hybrid seeds which are introduced at current, and to meet national demand for human consumption, inbreds and hybrids of waxy maize were developed by using Korean native lines. Six inbreds were used to produce 15 hybrids in a diallel cross. Six inbreds used were significantly different in tasseling dates, plant and ear heights, leaf area, and shank length. The inbred line, Bosung showed the longest shank length among the lines used. The ear characters like ear length and diameter, 100 kernel weight, row number, and kernel number per ear varied among lines. The inbred line Bosung was again significantly different from other lines in ear length and diameter, row number and 100 kernel weight. However, Jewon had the highest kernel yield per 100. Hybrids were also different in plant and ear characteristics depending upon the inbreds used. The hybrids of Bosung showed the longest ear length and the heaviest kernel weight. Highest kernel yield per unit area was obtained by the hybrids crossed with Dangjin. The general combining ability (GCA) of Dangjin was found very effective in reducing plant and ear height of hybrids. The GCA of Jewon was very effective in increasing tiller number per plant. The inbred line Bosung was effective in increasing ear length and 100 kernel weight and in decreasing row number. The hybrid which showed the highest specific combining ability in ear length and 100 kernel weight was Jewon Chilbo.