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Effect of plant density and seed position on mother plant on physiological characteristic of cocklebur (Xanthium strumarium) seeds Planta Daninha
Foroughi,A.; Gherekhloo,J.; Ghaderi-Far,F..
Experiments were conducted in 2010 to determine the influence of plant density and seed position on the mother plant on seed physiological characteristics of cocklebur (Xanthium strumarium). Cocklebur burs were collected in fall of 2010 from Research Farm of University of Agricultural Sciences and Natural Resources of Gorgan, Iran. The experiment was established as factorial arrangement using a completely randomized design with three replications. The factors included different densities of cocklebur (0, 2, 4, 6 and 8 plant m-2) and the top and bottom parts of the canopy. Non dormant seeds were used for determining cardinal temperatures and tolerance to salinity and drought stresses. Base, optimum and ceiling germination temperatures were estimated between...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Shade environment; Cardinal temperature; Competition; Dormancy.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000100007
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