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Mendham, N. J., Shipway, P. A. 1981: The effects of delayed sowing and weather on growth, development and yield of winter oilseed rape. J. Agric. Sci. Camb. , 96 , 389-416. The effects

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Pepö, P. (2012): Kockázatok a repcetermesztésben. (Agronomical risks in oilseed rape production). Agroförum , 23 , 12–20. Pepö P. Kockázatok a repcetermesztésben

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Plants of wild species Sinapis arvensis L . — (wild mustard) with severe mosaic symptoms were established all around different farm crops in Sofia valley and even in the Sofia suburbs in 2006. Two viruses were identified by ELISA method (DAS-ELISA) and by the indicator method. Those were the virus of the genus Caulimovirus , family CaulimoviridaeCauliflower mosaic virus (CaMV) and a virus of the genus Potyvirus , family Potyviridae — Turnip mosaic virus (TuMV). Both viruses were found in wild mustard plants, often in mixed infection. Turnip yellow mosaic virus (TYMV) wasn’t determined in wild mustard plants. CaMV was identified by the infection of its diagnostic indicator species Brassica oleracea var. botrytis (cv. Snowball) — cauliflower. Besides cauliflower, TuMV was also identified in cabbage — Brassica oleracea var. capitata, cv. Balkan, Chenopodium amaranticolor, Chenopodium quinoa and tobacco plants — Nicotiana rustica and Nicotiana tabacum , cv. Samsun. The economically important crop oilseed rape Brassica narus var. oleifera , hybrid Elvis, was infected by artificial mechanic inoculation with material from diseased wild mustard. Oilseed rape plants responded with local and systemic chlorotic mottling of the leaves. A clearly pronounced mosaic appeared on leaf petioles of the growth. Our hypothesis was that the weed Sinapis arvensis could be a reservoir of TuMV and CaMV infection for oilseed rape under natural conditions, if the viruses are transferred from wild mustard to oilseed rape with aphids.

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effect of an incompatible wild type of, a hypersensitive response (HR) mutant of and saprophytic Pseudomonas bacteria on membrane permeability, PSII efficiency and metabolic activity of oilseed rape cotyledons with and without brassinosteroid pre

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meghatározása . Gyakorlati Agrofórum Extra . 18 : 17 – 19 . 5. Eberhardt , S. : 1988 . Experience with the plant growth regulator Baronet in oilseed rape (Brassica napus) in Yugoslavia

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Irodalom 1. Alford , D. V. : 2000 . Biological control of insect pests on oilseed rape in Europe . Pesticide Outlook . October . 200 – 202

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Numerous different agroecosystems (alfalfa, apple, cereals, oilseed rape, maize, sunflower fields and plantations, a pasture and a compost hill) were investigated on the basis of the soil dwelling mites in two parts of Hungary. Twenty-three species of Mesostigmata, 13 Oribatida, one Astigmata and one Prostigmata are listed from these specific ecosystems, of which nine species, Alliphis halleri (G. and R. Canestrini, 1881); Antennoseius avius Karg, 1976; Antennoseius pannonicus Willmann, 1951; Arctoseius eremitus (Berlese, 1918); Cheiroseius bryophilus Karg, 1969; Leioseius insignis (Hirschmann, 1963); Oppiella loksai (Schalk, 1966); Punctodendrolaelaps fimetarius (Karg, 1965); Rhodacarellus perspicuus Halaśkova, 1958 are new to the Hungarian fauna.

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Cereal Research Communications
Authors: Zsolt Marczali, Miklós Nádasy, Ferenc Simon and Sándor Keszthelyi

pest insects in oilseed rape: implications for integrated pest management. Agric. Ecosyst. Environ., 95: 509–521. Williams I.H. Spatial distribution of pest insects in oilseed rape

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Cereal Research Communications
Authors: Gabriella Máthé-Gáspár, László Radimszky, Géza Kovács, Jánosné Falusi and Tamás Németh

nitrogen deficiencies on autumnal growth of oilseed rape. European J. of Agronomy 17. 11–28. Reau R. Effects of nitrogen deficiencies on autumnal growth of oilseed rape

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