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Grain yield grain nitrogen concentration and some associated physiological attributes of a semidwarf and tall argentinian wheat cultivars


, : Grain yield grain nitrogen concentration and some associated physiological attributes of a semidwarf and tall argentinian wheat cultivars. Cereal Research Communications 18(4): 291-298

We studied the effects of the semidwarfing genes on accumulation and distribution of dry matter and nitrogen through a tall (Eureka) and semidwarf Argentinian [wheat, Triticum aestivum] cultivars. In two field experiments the semidwarf cultivar showed a greater grain yield than the tall one. This was attributed to its higher harvest index associated to a higher number of grains per m2. Similarly, Buck Pucara showed both a greater grain nitrogen yield and a higher nitrogen harvest index. There was no difference in grain nitrogen concentration. Most of the main differences between cultivars were defined before the anthesis stage.

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