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 Printable version |
Determination of the climatic requirements of hard wheat (Triticum durum Desf. var. Mohamed Ben Bachir) in semiarid zone |
Cahiers Agricultures. Volume 16, Number 6, 469-76, novembre-décembre 2007, Étude originale
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 Résumé
Article gratuit
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Author(s) : Abdelhamid Zouaoui, Rabah Bensaid |
Summary : Since its independence, Algeria has adopted a restrictive approach towards local varietal ranges, giving priority to those said to be of high genetic potential. This reduction of local populations has led to extensive occupation hindering lasting development. Reintegrating the local varieties as well as mastering their production requirements must fit into a novel strategy for better agro-economic development. Indeed, relatively optimal output can only be the result of interaction between genotype and environment. The results of our research work on the high potential homogenous hard wheat local variety, (T. durum Desf., var. Mohamed Ben Bachir), South of Constantinoises High Plains, show that despite the new, more restrictive climatic conditions characterized by less rainfall, the decrease of optimal output is relative without any decline in the potential genetic level of this variety. Statistical interpretation of results concerning the ‘behaviour’ of the culture in eight experimental stations over two years and in two cereal plains over five years show the level of thermic and pluvial constraints. Correlating output with the availability of heat and rainwater during growth stages shows the decrease of dominant stressful effects of these two factors, particularly during the ‘header-flowering’ maturity (at the end of the developmental stage), the maturity stage the and ‘levying-tallage’ stages. The climatic requirements set for this type of culture, in spite of regional specificity, can be regarded as fitting the requirements of the large-scale cereal spaces of the country (High Plains and High lands). |
Keywords : Algeria, breeding value, climatic requirements, hard wheat, yields |
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