|Title:||狗牙根草白葉病(I)溫水處理||Other Titles:||WHITE LEAF DISEASE OF BERMUDA GRASS (I) HOT WATER TREATMENT||Authors:||楊一郎
|Keywords:||狗牙根草;白葉病||Issue Date:||Mar-1971||Publisher:||植病保護學會||Journal Volume:||13||Journal Issue:||1||Start page/Pages:||25-29||Source:||植物保護學會會刊||Abstract:||
本病依其白葉症狀暫稱為白葉病。本病有全白型(White)，斑駁型(Motled)，斑條型(Striped)三型病徵，與甘蔗白葉病相似。本病病徵具有隱避及復健現象。本病病株經溫水熱療結果：1. A群處理以54℃-90分，56℃-30分，58℃-20分，60℃-10分，結果使病株復健而不再出現病徵。2. B群處理以50℃-90分，53℃-50分，55℃-10分，55℃-20分，結果使病株病徽消失或隱避。3. C群處理以47℃-60分，50℃-50分，51℃-40分，53℃-20分，結果對病株無熱療效果，可知本病可經熱療而復健，其效果與處理溫度及時間成比例，由此推斷本病病株似存有某種致病體。
The white Jeaf disease of Bermuda grass was first noticed in Pingturig, Taiwan in 1958, and newly described.
According to the development of symptoms, the infected leaves could be divided into three types: (1) Striped. (2) Mottled. (3) White. The symptoms might be masked, reapeared and cured by some factors. When diseased stools were treated with hot water at 54℃-90 mm., 56℃-30 mm., 58℃-20 mm., and 60℃-10 mm. by dipping method, it showed that symptomless recovery on the tillers developed. However, the symptom on some tillers were masked at first and reappeared later when the diseased stools were treated with hot water at 50℃-90 min., 53℃-50 min., 55℃-10 min. and 55℃-20 min. respectively. The disease could not be cured at 47℃-60 min., 50℃-50 min., 51℃-40 min. and 53℃-20 min. The data revealed that there was a response in causal agent to thermotherapy and the effects of hot water suppression of symptoms were correlated proportionally with temperature and duration of treatment.
|Appears in Collections:||植物保護系|
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