以排水防治法防治水蕹菜青桔病
Other Title
Application of drainage on disease management of water spinach bacterial wilt caused by Ralstonia solanacearum
Resource
植物病理學會刊 16(4): 231-234
Plant Pathology Bulletin 16(4): 231-234
Journal
植物病理學會刊
Journal Volume
16
Journal Issue
4
Pages
231-234
Date Issued
2007-12
Date
2007-12
Author(s)
許秀惠
黃晉興
邱硯詩
Shiow-Huey Hseu
Jin-Hsing Huang
Chiou, Y.S.
Abstract
以剪刀剪去莖頂接種法測試63個蘿菜品種，結果顯示所有測試之品種對青枯病不其抗性。宿根栽培之水蘿菜採收後水田之排水乾燥處理其有降低下一季水蕹菜青枯病之效果。水田乾燥期間，許多蘿菜枯萎死亡，餘留外觀健康之植株，感染青枯病菌的比率由未排水的42%，降至排水乾燥28天處理的6%。當田水排完使田土乾燥14天，再引入灌溉水栽培時，青枯病之發病率由未排水處理的38.5%降業10.8%，排水乾燥處理28天更使發病率降至2.2%，旦排水乾燥14-28天之處理均可顯著減少病害所造成產量的損失。排水乾燥的有效防治處理方法，會使每個栽培週期由25天延長至32-42天。
A total of 63 varieties of water spinach (Ipomoea aquatica) were screened for resistance to bacterial wilt by clipping off the stem apex with scissors dipped with suspension of Ralstonia solanacearum (107 cfu/ml). None of the tested varieties was resistant to bacterial wilt. The disease could be reduced significantly by proper management of the irrigation water. When the paddy field was well drained and dry for 14, 21 or 28 days after each harvest, the pathogen infection rate of the survived plants were 4-14% compared with 42% of the non-drained treatment. After the field was irrigated again, the survived plants grew quickly, and the disease incidence was reduced to 2.2-10.8% compared with 38.5% of the non-drained treatment at the harvest. The yield of water spinach also increased significantly by the drainage treatment, and the cultivation period of each harvest was extended to 32-42 days for the drainage treatment than the non-drained treatment.
Subjects
蕹菜
青枯病
抗病篩選
排水防治
water spinach
Ipomoea aquatic
bacterial wilt
resistance screening
filed drainage
disease control
Publisher
中華民國植物病理學會
Type
journal article
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