Evaluation Of Important Traits In Competitive Ability Of Wheat Cultivars (Teriticum Aestivum) Against Rye (Secale Cereale)
2006
Dianat, M., PhD. weed Mangement. University of Tehran. | Rahimian Mashhadi, H., Professor of Tehran University | Baghestani, M.A., Associated Assistant Professor of Pest and Diseases Plant Research Institute | Alizadeh, H.M., Assistant professor of Tehran University | Zand, E., Associated Assistant Professor of pest and Diseases plant Research Institute
Rye (Secale cereale) is one of the most important weed in winter wheat (Triticum aestivum). Herbicides are main factors in weed control but herbicides resistance, environmental problems and high costs get researchers to find non chemical weed controls. On of these ways is competitive ability to management weeds. It is important to know plant traits inducing higher competitive ability. An experiment was conducted in Karaj and Varamin during 2002-2003. Eight Iranian winter wheat cultivars (Azadi, Mahdavi, Roshan, Tabasi, Pishtaz, Shiraz, Karaj2 and Nicknejad) were used in this experiment and a factoiral experiment design arranged in a randomaized complet block was used. Feral rye was planted with wheat seeds at 120 Kg m-2. Among these Cultivars Mahdavi and Karaj2 are competitive and non competitive Cultivars against feral rye respectively. Comperison of the morphological and physiologival traits showed that Leaf Area Index (LAI), number of tillers plant, rate of germination and canopy structure were the most plant traits in enhancing competitiveness in wheat against feral rye.
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