Автор |
Thomson, A. D. |
Автор |
Ferguson, J. D. |
Дата выпуска |
1982 |
dc.description |
YCultivars of barley and wheat, resistant and susceptible to powdery mildew (Erysiphe graminis), were grown in perlite with added nutrient solutions in which the Ca(N0<sub>3</sub>)<sub>2</sub> : KH<sub>2</sub>P0<sub>4</sub> ratio was from one-third to three times the normal (1:1) amount in a balanced nutrient solution, i.e., 3:3, 3:1/3, 1/3:1/3, and 1/3:3. The degree of mildew infection was measured by planimetry, or by determining the number of conidia rer 10 g of leaf tissue or estimated visually. The Ethiopian barley cultivar CI 3926/3 was more resistant to mildew than ‘Kenia’, but the level of resistance varied depending on the Ca(N0<sub>3</sub>)h : KH<sub>2</sub>P0<sub>4</sub> ratio; both CI 3926/3 and ‘Kenia’ were more resistant when grown in 1/3:3 than in the other treatments. Small darkbrown streaking lesions were produced on CI 3926/3 and to a lesser extent on ‘Kenia’ grown in the high levels of Ca(N0}<sub>3</sub>h. ‘Aotea’ wheat plants were also resistant to mildew when grown in 1/3:3 and to some extent in 3:3, but susceptible in 1: 1, 3:1/3 and 1/3:1/3. Chlorotic flecking lesions occurred on plants grown in Yd. ‘A Federation’ wheat plants were immune to mildew in both 1/3:1/3 and 1/3:3. |
Формат |
application.pdf |
Издатель |
Taylor & Francis Group |
Копирайт |
Copyright Taylor and Francis Group, LLC |
Тема |
Erysiphe graminus DC. |
Тема |
barley powdery mildew |
Тема |
wheat powdery mildew |
Тема |
disease resistance |
Тема |
nutrients (plant) |
Тема |
Ca(N0<sub>3</sub>)<sub>2</sub> |
Тема |
KH<sub>2</sub>P0<sub>4</sub> |
Тема |
wheat |
Тема |
barley |
Тема |
cereal crops |
Тема |
cereal diseases |
Название |
Effect of different levels of calcium nitrate and potassium dihydrogen phosphate on powdery mildew (Erysiphe graminis DC) infection in resistant and susceptible barley and wheat |
Тип |
research-article |
DOI |
10.1080/00288233.1982.10423378 |
Electronic ISSN |
1175-8775 |
Print ISSN |
0028-8233 |
Журнал |
New Zealand Journal of Agricultural Research |
Том |
25 |
Первая страница |
103 |
Последняя страница |
107 |
Аффилиация |
Thomson, A. D.; Botany Division, DSIR |
Аффилиация |
Ferguson, J. D.; Applied Biochemistry Division, DSIR |
Выпуск |
1 |
Библиографическая ссылка |
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Библиографическая ссылка |
Benada, J. 1969. Brown patches on leaves of barley in the relationship to powdery mildew. Phytopathologische Zeitschrift, 65: 288–290. |
Библиографическая ссылка |
Benada, J. 1970. Chlorotic spots on cereal leaves as the expression of resistance against powdery mildew. Phytopathologische Zeitschrift, 67: 89–92. |
Библиографическая ссылка |
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Библиографическая ссылка |
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Библиографическая ссылка |
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Библиографическая ссылка |
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Библиографическая ссылка |
Smith Harvey, C. and Smith, Marion. 1970. Studies on generalised resistance to powdery mildew (Erysiphe graminis) in wheat. New Zealand wheat review No. 11, : 54–61. |
Библиографическая ссылка |
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Библиографическая ссылка |
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Библиографическая ссылка |
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