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春·秋二期作 감자의 品種別 年差間 生育 및 收量特性의 變化
金翰琳,姜一斗 濟州大學校 亞熱帶農業硏究所 1999 亞熱帶農業硏究 Vol.16 No.-
Abstract This study was conducted to determine the recommendable potato cultivar for spring and fall cropping using 7 cultivars containing Dejma in Chejudo from May, 1997 to November, 1998. The emergence rate in 1997 was higher than in 1998. There was no difference between cultivars in spring cropping, but the rate in Dejima, Gosi 2, and Gosi 5 were great in fall cropping. Significant differences between cultivars were found in the stem length and the number of stems per plant in spring and fall cropping. The stem of Dejima in sping and that of Gosi 3 in fall were long. The number of stems was large in Gosi 4 in spring and in Gosi 2 in fall. The number of tubers per plant in Gosi 4 was large in spring and fall cropping, but this resulted in light tuber and low rate of marketable yield. The number of tubers and the average tuber weight were great in Dejima, Gosi 1, Gosi 2, and Gosi 5. There was no significant difference between cultivars in the specific gravity of tuber. A difference between cultivars in the marketable yield was found in spring and fall cropping, but not in total yield. The Marketable yield of Gosi 1, Gosi 2, and Gosi 5 were greater than Dejima, but the dehiscent tubers in. Gosi 5 resulted in low marketability. As a result, the recommendable Cultivars in Cheju-do were Gosi 1, and Gosi 2 for spring and fall croppin.