狗牙根草白葉病(I)溫水處理
Other Title
WHITE LEAF DISEASE OF BERMUDA GRASS (I) HOT WATER TREATMENT
Journal
植物保護學會會刊
Journal Volume
13
Journal Issue
1
Pages
25-29
ISBN
0577-750X
Date Issued
1971-03
Date
1971
Author(s)
楊一郎
I-lang Yang
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.
Subjects
狗牙根草
白葉病
Publisher
植病保護學會
Type
journal article
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