| 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 | Benada, J. 1965. The influence of pH of barley tissues on the symptoms caused by powdery mildew (Erysiphe graminis DC.). Phytopathologische Zeitschrift, 54: 185–192. |
| 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. |
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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 | Thomson, A. D. and Ferguson, J. D. 1976. Effect of varying the nutrient supply on response of pea plants to pea leaf roll. New Zealand journal of agricultural research, 19: 529–533. |
| Библиографическая ссылка | Thomson, A. D. and Ferguson, J. D. 1980. Response of oat, ryegrass, and barley infected with barley yellow dwarf virus to variation in nutrient supply. New Zealand journal of agricultural research, 23: 367–372. |
| Библиографическая ссылка | Trelease, Sam F. and Trelease, Helen M. 1928. Susceptibility of wheat to mildew as influenced by salt nutrition. Bulletin of the Torrey Botanical Club, 55: 41–48. |
