Science et changements planétaires / Sécheresse


Maize grain yield stability analysis for dry areas of Burkina Faso Volume 11, issue 3, Septembre 2000


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Institut de l'environnement et des recherches agricoles, BP 476, Ouagadougou, Burkina Faso.
  • Page(s) : 189-93
  • Published in: 2000

Over the last 20 years, drought has been a constant problem affecting plant development, mainly in semiarid zone of western Africa and particularly of Burkina Faso. Several approaches have been tested to control this problem and the conclusion is that developing varieties adapted to different agro-ecological zones is one of the best strategies. Using the regional maize testing network, four varieties of extraearly maize with planting to maturity cycles of 75 to 82 days were tested under natural conditions. A randomized complete block design was used and only data on grain yield from 11 sites in Burkina Faso was analysed. The stable varieties identified are KEJ and CSPSR, with yields of 3.2 and 3.6 t/ha respectively, a regression coefficient “b” of nearly 1 and low regression deviations (close to 0).