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This article in AJ

  1. Vol. 61 No. 4, p. 589-590
    Received: Dec 9, 1968

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Selection in Medicago sativa for Tolerance to Alfalfa-Sick Soils of Central Alberta1

  1. B. P. Goplen and
  2. G. R. Webster2



Genetic selection against the suspected toxic (“alfalfasick”) soil condition was ineffective. Replicated field comparisons of ‘Sel. Vernal’ and unselected certified ‘Vernal’ on two alfalfa-sick soils showed no significant difference in forage yield. Yields of four additional varieties also were uniformly depressed by the alfalfasick soils. Fertilizer treatments improved yields somewhat but did not correct the suspected toxic soil condition. Previous cropping to alfalfa appears responsible for the severely depressed growth of alfalfa.

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