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Journal of Agronomy
Year: 2010  |  Volume: 9  |  Issue: 3  |  Page No.: 75 - 81

Phenology and Agronomic Performances of the Species Vicia narbonensis L. in the Semi-arid Region of Sétif

A. Mebarkia, K. Abbas and A. Abdelguerfi    

Abstract: The experiment was conducted during two cropping seasons (2001/2002 and 2002/2003), with the objective to study the Phenology and agronomic performances of the fifteen ecotypes of the species (Vicia narbonensis L.) under the agro-climatic conditions of the semi-arid region of Setif. The various phenological stages of the plant, the fodder and grains yields and several characters relating to the quality of seeds were measured. The results obtained show large diversity among phenological ecotypes of Vicia narbonensis L. The ecotype 2466 is very early for the beginning of flowering, for full flowering, for the beginning of pods formation and for complete maturity. In contrast, ecotype 2390 is the latest for all the phonological stages measured. Concerning forage and grain production, the statistical analysis showed highly significant differences between ecotypes. The best fodder and grain productions are reported for the late flowering ecotypes. Ecotype 2390 produced average values of 2.5 ton dry matter ha-1 of fodder and 16.9 quintals ha-1 of grains. The fodder and grain yields were correlated positively (p<0.05) with the number of days to the full flowering, which guides the selection towards the late ecotypes. Highly significant differences were observed for total nitrogen and fat contents of seeds (p<0.01). Ecotypes 2393 and 2467 produced the highest concentrations in fat (1.2%) and the ecotype 2462 produced 33.6% in total nitrogen.

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