PARAMETERS OF ENVIRONMENTAL PLASTICITY OF CULTIVARS AND VARIETIES OF AMUR SPRING BARLEY
Abstract
The article is concerned with increasing of crop yield and explores that production quality is influenced by the variety adjusted to local conditions. This variety is most productive for plant production and important in agricultural production. New cultivar should be highly productive, highly adaptive and environmentally plastic (to form steady crop yield in different conditions). The article explores estimation of cultivars and varieties of Amur spring barley on environmental plasticity and stability. The researchers estimated environmental plasticity and stability for 3 years (2012–2014), which differed in vegetation conditions. The authors apply regression co-efficient (bi), which characterize cultivars response to agricultural changes and stability variance (s2di), which shows cultivar response to environmental changes and its stability. New Amur variety included into the State List of Selection Inventions is not stable, which is proved by estimation in 2008–2011. Earlier it was not stable but responded well to the changes; now it is not stable but more productive in favorable conditions. The authors make the idea that varieties, which belong to the group of well-responding to the changes and stable ones are the most significant varieties. The researchers define Mishka variety as a stable and well-responding.
About the Authors
I. V. Kurkova
Дальневосточный государственный аграрный университет
Russian Federation
Russian Federation
A. S. Kuznetsova
Дальневосточный государственный аграрный университет
Russian Federation
Russian Federation
M. V. Terekhin
Дальневосточный государственный аграрный университет
Russian Federation
Russian Federation
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Review
For citations:
Kurkova I.V., Kuznetsova A.S., Terekhin M.V. PARAMETERS OF ENVIRONMENTAL PLASTICITY OF CULTIVARS AND VARIETIES OF AMUR SPRING BARLEY. Bulletin of NSAU (Novosibirsk State Agrarian University). 2015;(3):19-24. (In Russ.)
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