Variation in Responses of Sunflower Cultivars to the Parasitic Weed Broomrape

Autor:	Baruch Rubin, Dina Plakhine, Yeshayahu Kleifeld, J. Hershenhorn, Hanan Eizenberg
Rok vydání:	2004
Předmět:	Orobanche biology Agronomy Germination Tubercle Helianthus annuus food and beverages Plant Science Cultivar biology.organism_classification Weed Agronomy and Crop Science Sunflower
Zdroj:	Plant Disease. 88:479-484
ISSN:	1943-7692 0191-2917
DOI:	10.1094/pdis.2004.88.5.479
Popis:	Development of four Orobanche species, O. cumana, O. aegyptiaca, O. ramosa, and O. cernua, was compared on resistant and susceptible sunflower cultivars. Sunflower plants were infected by O. cumana, O. aegyptiaca, and O. ramosa, but not by O. cernua, in field and greenhouse studies. However, cultivating the hosts and parasites in a polyethylene bag system allowed the observation that sunflower induced O. cernua seed germination. This difference demonstrates that O. cernua is unique from the other three species. O. cumana, O. aegyptiaca, and O. ramosa attached to and developed tubercles on the susceptible sunflower ‘Adi.’ On the resistant ‘Ambar’ sunflower, a greater percentage of tubercles were degenerated or dead than on the susceptible cultivar. Thus, resistance of Ambar appears to manifest during tubercle development. Seed production of Adi sunflower was greatly reduced with infection by O. cumana.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a91c9fa184975115d5752ed5947a48f9 https://doi.org/10.1094/pdis.2004.88.5.479 Zobrazit plný text záznamu