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하우스 밀감에 있어서 전정시기(剪定時期)가 화아분화(花芽分化)및 착과량(着果量)에 미치는 영향
김용호,기산량삼 한국국제농업개발학회 1996 韓國國際農業開發學會誌 Vol.8 No.1
高品質 柑橋의 周年供給을 위해 剪定時期가 花芽分化에 미치는 影響을 구명하고자 6월 15일, 7월 5, 10, 17, 27일에 剪定을 하여 經時的으로 결과지내 전분 및 환원당을 분석하였으며, 동시에 수삽을 병행하여 가온시기를 예측하고, 가온을 실시하여 개화결실에 미치는 영향을 조사한 바 그 결과를 요약하면 다음과 같다. 剪定時期로 부터 加溫開始日까지 所要日數는 6월 15일, 7월 5, 10, 17, 27일 전정구에서 각각 142, 136, 135, 133, 135일로 6월 15일구는 7월 5일구에 비해 20일 일찍 전정을 하였으나 전정시기를 앞당긴 것만큼 가온시기가 단축되지는 않았다. 수삼에 의한 결과지의 출뢰는 전분이 당화되어 전분이 감소되고 환원당이 증가한 시기에 개시되었다. 滿開所要日數는 11월 4, 18, 22, 27일, 12월 9일 가온구에서 각각 29, 30, 32, 35, 35일로 가온시기가 늦어질수록 지연되었다. 葉果比는 가온시기별로 각각 17.5, 23.7, 37.8, 34.2, 38.2로 가온시기가 늦어질수록 증가되었다. This study was carried out to elucidate the effect of pruning time on the bud differentiation of Miyagawa Early Satsuma mandarin in the establishment of systemical technique for control of production season and production of high quality fruit in the plastic house. The citrus tree were pruned on June 15, July 5, 10, 17, 27, and starch and reducing sugsr of the fruit bearing shoot were analyzed and then the heating time were decided by cutting method of fruit bearing shoot in growth chamber. The results are summarized as follows. Days to heating time from pruning time were 142, 136, 135, 133, 135 days, respectively, at pruning time on June 15, July 5, 10, 17, 27 and were not shortened at pruning time on June 5 than on July 15 in spite of the one was pruned earlier 20 days than the other. The budding of fruit bearing shoot by cutting method was started when starch content was decreased and reducing sugar was increased. Days to flowering time from heating time were 29, 30, 32, 35, 35 days, respectively, at heating time(according to pruning time) on Nov. 4, 18, 22, 27, Dec. 9 and were delayed as heating time were late. Leaf fruit ratio at different heating time were 17.5, 23.7, 37.8, 34.2, 38.2, respectively and increased as heating time were late.