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Influence of year on yield and yield components of spring, semi-winter and winter bread wheat varieties



Influence of year on yield and yield components of spring, semi-winter and winter bread wheat varieties



Iraq. J. agric. Sci 3(2): 24-35



Four spring, four semiwinter and one winter variety were compared with the local spring wheat Ajeba 210 during the period 1965 to 1967. The spring variety Kenya Guiar and the semiwinter varieties Henry Cadet 1442, Supremo, French 152 and Supremo alpha Kenya Guiar produced the highest yields when averaged over the three seasons. A highly significant variety x year interaction was found for grain yield, number of heads per plant and number of seeds per head.

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