頁籤選單縮合
題 名 | 番荔枝葉片枯焦原因調查=An Investigation of the Causes of Sugar-apple Leaf Scorch |
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作 者 | 林慶喜; 張愛華; 劉慧瑛; | 書刊名 | 臺東區農業改良場研究彙報 |
卷 期 | 10 1999.06[民88.06] |
頁 次 | 頁47-63 |
分類號 | 435.39 |
關鍵詞 | 調查; 番荔枝; 葉片枯焦; 鹽沫; Investigation; Sugar apple; Leaf scorch; Salt spray; |
語 文 | 中文(Chinese) |
中文摘要 | 為探討太平洋沿岸地區番荔枝葉片之葉尖及葉緣枯焦是否為鹽沫所造成,乃於距離太平洋海岸200公尺的東河鄉番荔枝果園及距離海岸13公里的卑南鄉番荔枝果園分別採果實及葉片分析C1及Na含量並比較其差異性。番荔枝夏期果以鮮重計東河鄉的果皮Cl及Na分別為76.6及44.6 mg/100g極顯著高於卑南鄉的53.7及28.0 mg/100g。冬期果以鮮重計東河鄉果實套袋處理之果皮及果肉 Cl 含量分別為 59.0 及 61.5 mg/100g,而未套袋處理者為78.1及56.8 mg/100g,卑南鄉果實套袋處理者則分別為54.0及32.5 mg/100g;果皮及果肉Na含量則依序分別為28.5及37.3、29.3及35.8、7.8 及8.4mg/100g,顯示東河鄉果實、果皮及果肉之Cl及Na含量均高於卑南鄉。葉片Cl平均含量自10月、11月、12月、1月至2月,東河鄉分別為6,740、11,265、8,946、9,563及10,025 ppm,而卑南鄉則分別為2,845、4,416、 4,241、4,876及5,547 ppm;葉片Na平均含量自11月、12月、1月至2月,東河鄉分別為1,988、1,038、988及1,099 ppm,而卑南鄉則分別為295、298、362及338 ppm,顯然東河鄉葉片的Cl及Na極顯著高於卑南鄉者,顯示太平洋沿岸番荔枝葉片枯焦為鹽沫所造成,暫訂葉片顯現病徵的濃度Cl為7,000 ppm,Na為1,000 ppm以上。 |
英文摘要 | The objective of this investigation was to find out if the leaf scorches of sugar apple (Annona squamosa L.) c.v. Large Scale was damaged by salt spray. The necrotic areas first appear at the leaf tips and upper margins on old and young leaves, as the condition of the plants worsens, the scorch spreads towards the midrib between the leaf veins and gradually progresses in inverted V shape and eventually leaves shed. The first sugar-apple orchard located at Tunghe village on which leaf scorch was detectable was 200 meters from the Pacific Ocean and the second sugar-apple orchard located at Peinan village on which leaf scorch was not detectable was 13 kilometers from the Pacific Ocean. The leaves and the fruits of the two orchards were sampled for comparing the difference in Cl and Na contents. On fresh weight basis, the skin Cl and Na of summer fruit at Tunghe were 76.6 and 44.6 mg/100g and at Peinan were 53.7 and 28.0 mg/100g, the former was significantly higher than the latter. On the basis of fresh weight for winter fruit, the skin and the pulp Cl concentrations of bagged fruit at Tunghe were 59.0 and 61.5 mg/100g, but without bagged fruit 78.1 and 56.8 mg/100g, while bagged fruit at Peinan 54.0 and 32.5 mg/100g; the skin and the pulp Na concentration were 28.5 and 37.3, 29.3 and 35.8, 7.8 and 8.4 mg/100g, respecttively, it indicated that the skin and the pulp Cl and Na concentrations at Tunghe were remarkably higher than Peinan. The mean leaf Cl contents from Oct. Nov. Dec. Jan. and Feb. at Tunghe were 6,740、11,265、8,946、9,563 and 10,028 ppm, but at Peinan 2,845、4,416、4,241、4,876 and 5,547ppm, respectively; the mean leaf Na contents From Nov. Dec. Jan. and Feb. at Tunghe were 1,988、1,038、988 and 1,099 ppm, while at Peinan 29.5、29.8、362 and 338 ppm, respectively, obviously, the leaf Cl and Na contents of sugar apple at Tunghe were significantly higher than that of sugar apple at Peinan. It suggested that the leaf scorch of sugar apple was caused by excessive amount of Cl and Na from salt spray, and the tentative leaf standards for visible leaf scorch symptoms were Cl over 7,000 ppm and Na over 1,000 ppm. |
本系統中英文摘要資訊取自各篇刊載內容。