الفهرس 
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Abstract
A simple mathematical model was applied to quantify the relative contribution of allelopathy to interference against Raphanus sativus by Medicago sativa. The interference by M. sativa was assessed and the relative contributions of allelopathy and allelospoly to overall interference were modeled. Competitive interference by M. sativa was eliminated and there were a high R² values (0.937, 0.939) in dry weight of shoot and root of R. sativus respectively. The contributions of competition and allelopathy to the interference by M. sativa were averaged as 13.5% and 86.5% at 6R, 23.74% and 75.37% at 12R and 3.9% and 96% at 18R in shoot dry weight, while 85% and 14.9% at 6R, 98.59% and 1.4% at 12R and 44.27% and 55.72% at 18R in root dry weight respectively.
The calculations based on equivalent density showed that allelopathy contributed values of 97.3%, 43.84% and 88.15% of the interference by M. sativa in fresh weight of root, whereas allelospoly by M. sativa contributed to the 2.6%, 56.14% and 11.84% of interference at the densities of 6, 12 and 18 R. sativus pot–1, respectively. While, a Allelopathy contributed 25%, 58.69% and 96.6% of the interference by M. sativa in fresh weight of shoot, also allelospoly by M. sativa contributed to the 74.7%, 41.30% and 3.4% of interference at the densities of 6, 12 and 18 R. sativus pot–1, respectively. The agglomerative cluster analysis of the four samples (12R, 12R+E, 12R+12M and 12R+12M+E) showed two major clusters. This study suggested the complex effect of both components of interference (allelopathy and allelospoly) on the composition of vegetative proteins, and confirms the modeling results.