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Journal of Agronomy
Year: 2008  |  Volume: 7  |  Issue: 2  |  Page No.: 138 - 147

Morphological and Growth Characteristics of Perennial Grass Cultivars Grown under Semi-Arid Conditions of the Algerian High Plateaus

M. Mefti, H. Bouzerzour, A. Abdelguerfi and H. Nouar    

Abstract: The objectives of the present study, conducted during the 2005-2007 cropping seasons, were to characterize variation for dry matter yield, forage maturity, LSR, LA, SLM, EG, RC, RWC, EL and WUE among sixteen perennial grass cultivars grown under drought conditions in the semi arid climate of the Algerian high plateaus. The results indicated that the tested genotypes varied widely for the measured characteristics. Dry matter performance was positively associated with early heading, high water use efficiency and plant stature. DMY performance appeared to be independent from leaf area, leaf to stem ratio, leaf specific mass, relative growth rate and etiolated growth. Best dry matter performing genotypes were Partenope, Fraydo and FletchaEF and were characterized by high WUE, earliness, above average RGR and below average LSR and EL, but varied for the others measured traits. These results were based on data obtained in the establishment and first production years, when little time has elapsed for the cumulative effects of stress to impact stand persistence.

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