Effect of seeding rates and competitiveness of grassy and broad leaf weeds on yield and yield components of wheat (Triticum aestivuml [electronic resource].

Includes references.

Simple correlation matrix showed that the dry weight of total weeds, grassy weeds and broad leaf weeds biomass were negatively correlated with wheat yield. Where correlation coefficients (r) were -0.820, -0.672 and -0.504,respectively over the two seasons. The yield was positively correlated with number of spikes/m' (0.9), 1000-grain weight (0.854), number of spikelets/spike (0.792) and weight of spike (0.504). This study showed that grassy weeds were more aggressive in their competitiveness effect than broad leaf weeds on wheat yield and its components. Thus, to improve wheat productiVity, the decision maker should take in consideration the weed type during planning strategy for weed control in wheat to prevent wped competition and minimize herbicidal application.

Summary in Arabic.

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