Victor Sapega

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The paper gives characteristic to the permitted for use varieties of spring wheat of different ripeness groups in terms of yield and adaptability parameters when tested in different soil and climatic zones. Higher average yield, realization of its potential and homeostasis of varieties in the northern forest-steppe zone, and an increase in yield regardless(More)
On the basis of statistical indices, cereal crop varieties released during the past 20 years in the Tyumen oblast are assessed with respect to plasticity, stability, and ecological stability and the relation between yielding ability and adaptability parameters is given. An increase of productivity and variability of yielding ability of varieties of all(More)
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The complex assessment has been given to the pea varieties permitted for use by productivity and parameters of the adaptive ability based on the results of their test in three natural and climatic zones in Tyumen oblast. The best varieties by average productivity have been found—in conditions of subtaiga, Yamal’skii; in northern forest steppe, Yamal; and in(More)
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