الفهرس 
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Abstract
A field experiment was conducted at the Agricultural Research Farm at Al-Kawthar site, Faculty of Agriculture, Sohag University, during 2014/15 and 2015/16 seasons to study the effect of plant density combined with its distribution on yield and yield components of some faba bean cultivars. Randomized complete blocks design (RCBD) in a split-plot arrangement with four replicates was used. Plant densities combined with distribution were arranged randomly in the main plots, whereas cultivars were allocated randomly in the sub-plots. Plant density combined with its distribution at four levels intra-row plant spacing (15, 25, 20 and 20 cm between hills) were performed to give 93333, 112000, 140000 and 140000 plants/fed, respectively. Four cultivars (Misr 3, Giza 843, Giza 716 and Nobaria 1) were used. The obtained results revealed that increasing plant density up to 140000 plants/fed significantly increased seed and protein yields per feddan in both seasons. Sowing at 25 cm between hills on both sides/ridge produced highest values of number of branches/plant, number of pods/plant, number of seeds/pod, seed yield/plant (g) and 100-seed weight (g) in both seasons. On the other hand, Sowing at 15 cm between hills on one side/ridge gave the lowest values for these traits except plant height which recorded the highest values in both seasons. Faba bean cultivars varied significantly in all studied characters. Giza 716 and Giza 843 cultivars produced higher seed and protein yields per feddan and significantly out-yielded the other cultivars in both seasons. It could be concluded that sowing Giza 716 with plant density of 140000 plants/fed resulted in the highest seed and protein yields.