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582.952.6:[581.1+581.9] (1) |
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SM ISO690:2012 CLAPCO, Steliana. Diversitatea raselor de lupoaie (orobanche cumana wallr.) în lume. In: Revista de Ştiinţă, Inovare, Cultură şi Artă „Akademos”, 2021, nr. 3(62), pp. 25-32. ISSN 1857-0461. DOI: https://doi.org/10.52673/18570461.21.3-62.03 |
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Revista de Ştiinţă, Inovare, Cultură şi Artă „Akademos” | |||||||
Numărul 3(62) / 2021 / ISSN 1857-0461 /ISSNe 2587-3687 | |||||||
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DOI:https://doi.org/10.52673/18570461.21.3-62.03 | |||||||
CZU: 582.952.6:[581.1+581.9] | |||||||
Pag. 25-32 | |||||||
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Orobanche cumana Wallr. – a root parasitic weed that causes immense damage to sunflower crop, is a polymorphic species characterized by the existence of a series of biotypes, called physiological races, which differ depending on their ability to parasitize a certain genotype of host plant. The co-evolution host-parasite, as a result of specific gene-for-gene interactions, and the pressure on the broomrape by the continuous introduction of resistant sunflower hybrids favors the periodic emergence of new races of the parasite, which overcome existing resistance genes. This paper gives an overview on the chronology of the evolution of broomrape races in different countries of the world and presents some current analyses on the racial status of O. cumana in a number of sunflower-growing countries, such as China, Turkey, Bulgaria, Serbia, Spain, Ukraine and Romania. |
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Cuvinte-cheie Orobanche cumana Wallr., physiological races, racial status, resistance genes, virulence, Orobanche cumana Wallr., rase fiziologice, statut rasial, gene de rezistenţă, virulenţă. |
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