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We studied the dry matter yield, grain yield and yield components
of ecotype 2388 of Vicia narbonensis L. using three seeding rates and
three levels of phosphorus. The experiment was conducted during two crop years
2009/2010 and 2010/2011 in the Agricultural Technology Institute located in
the semi arid region of Setif in Algeria. The experimental design adopted was
a complete randomized block with three repetitions. Phosphorus levels used are
60, 80 and 120 kg ha-1 and seeding rates are 40, 60 and 80 seeds
m2. Analysis of variance indicates that the dry matter yield, grain
yield and agronomic traits were significantly affected by the density and phosphorus
levels. Using the rate of 120 kg ha-1 of phosphorus results in average
yields very important of dry matter of about 45.61 qx ha-1, grain
yield of 15.60 qx ha-1 , plants highest of 60.84 cm and a length
of pods best of 5.19 cm. Density of 80 m2 grains has spawned better
grain yields of 15.48 and 47.62 qx ha-1 of dry matter. However, the
number of seeds per pod and weight of 100 seeds were affected differently. The
low density of 40 seeds m2 recorded the most important weight of
100 seeds of 16.46 g and a number of seeds per pod high of about 4.94. Significant
positive correlations were observed between grain yield and plant height (r
= 0.825) and dry matter yield (r = 0.715) and negatively correlated with the
number of grains per pod (r = -0.654, p<0.05).
