查詢結果分析
來源資料
相關文獻
- 溫度與相對濕度對蝴蝶蘭軟腐病發生之影響
- 高施用量殺菌劑對蝴蝶蘭苗生育及其開花之影響
- 蝴蝶蘭葉面積之估算與溫度對葉片生長之影響
- A Quantitative Study for Body Perspiration with Conductivity-Based Humidity Sensing System
- 適當防治蝴蝶蘭細菌性病害避免誘發病菌抗藥性
- 帶殼與去殼處理對落花生種子儲藏壽命之影響
- 蝴蝶蘭花朵寒害後不同部位之老化、乙烯生成及電解質滲漏
- The Mean Kinetic Temperature and Relative Humidity for Drugs and Products Stability Testing in Taiwan
- 蝴蝶蘭葉片黃圓斑發生原因之初探
- 乾濕球溫度對於相對濕度量測誤差之影響
頁籤選單縮合
題 名 | 溫度與相對濕度對蝴蝶蘭軟腐病發生之影響=Influence of Temperature and Relative Humidity on the Incidence of Soft Rot of Orchid Phalaenopsis |
---|---|
作 者 | 位國慶; 陳文輝; | 書刊名 | 臺灣糖業研究所研究彙報 |
卷 期 | 159 1998.03[民87.03] |
頁 次 | 頁43-57 |
分類號 | 435.432 |
關鍵詞 | 蘭花; 蝴蝶蘭; 軟腐病; 軟腐細菌; 溫度; 相對濕度; Orchid; Phalaenopsis; Soft rot; Erwinia chrysanthemi; Temperature; Relative humidity; |
語 文 | 中文(Chinese) |
中文摘要 | 蝴蝶蘭葉片表面針刺傷口,以人工接種軟腐細菌(Erwinia chrysanthemi)懸浮液, 會產生軟腐病徵及過敏性反應,軟腐病徵與蘭園溫室內自然發生之情形相同,均為水浸狀及 組織柔軟液化。過敏性反應葉片組織為水浸狀且凹陷,但不會擴大,在相對濕度較低時,會 快速地轉變成褐色枯乾狀。在接種細菌濃度較高時,軟腐病徵發病率高,過敏性反應較少。 不同年齡之葉片對軟腐細菌之抗感性有異,下位葉較上位葉抵抗力強。軟腐細菌在高溫時發 病率高,22℃時只有少許的軟腐病發生,26℃時軟腐病發生率開始快速升高,但在30℃及34 ℃時已提高至83.7-94.6%,此結果與溫室內自然發病情況相似。溫度、相對濕度和細菌接種 濃度三者對蝴蝶蘭軟腐病之發生及病徵型態有密切關係,在高溫(28℃以上)、高濕(100%相對 濕度)及高濃度(1.0×10□cfu/ml)細菌接種源時,軟腐病發病率非常高,經常在80%以上;若 能降低相對濕度及接種源濃度,其發病率則可以大幅降低。自動化調節溫度之密閉式溫室在 臺灣夏天時,溫度為25-30℃,夜間相對濕度高,適合蝴蝶蘭之生長,但亦為軟腐病發病的 適宜條件。冬天時,溫室內之溫度在20℃以上,亦無法完全杜絕軟腐病的發生。18℃及14 ℃之低溫雖可抑制軟腐,但若軟腐細菌已侵入蝴蝶蘭葉片組織,軟腐病斑依然會繼續擴展。 |
英文摘要 | The leaves of Phalaenopsis, inoculated artificially with Erwinia chrysanthemi bacteria suspension, produced rotting lesions and hypersensitivity. The rotting lesions showing water-soaked symptoms and liquefaction of leaf tissues were the same as those occurring naturally in the greenhouse. The hypersensitivity of leaf tissues was limited to the area of inoculation, and showed water-soaked and hollow lesions one day after inoculation. They quickly became dark brown and the tissues became dry when the relative humidity was lower. There were a higher ratio of rotting and a lower ratio of hypersensitivity when the leaves were inoculated with a high concentration of bacteria suspension (1.0×10□cfu/ml). The resistance of leaf tissues to Erwinia chrysanthemi was different with the age of leaves. The lower old leaves were more resistant than the upper young leaves. There was a higher incidence of rotting when the temperature was above 26℃. These results were consistent with the soft rot which occurred naturally in the green-house. The occurrence and symptoms of soft rot were affected by temperature, relative humidity, and inoculum concentration. Percent incidence of rotting was very high, usually more than 80%, at high temperature (above 28℃), high relative humidity (100%), and high inoculum concentration (1.0×10□cfu/ml) of the bacteria. The rotting incidence was effectively reduced if the relative humidity and inoculum concentration were decreased. It is suitable for the growth of Phalaenopsis to maintain the temperature in the greenhouse at 25-30℃ and a higher humidity in the night during the summer in Taiwan. However, such conditions are also favorable for rotting of Phalaenopsis. Soft rot also cannot be completely eradicated when the temperature in the greenhouse is kept above 20℃ in the winter. Although temperature lower than 18℃ or 14℃ could inhibit the rotting, the rotting lesions could still enlarge if the bacteria had successfully infected the leaf tissues of Phalaenopsis. |
本系統中英文摘要資訊取自各篇刊載內容。