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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
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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.

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