INHERITANCE OF COLD TOLERANCE IN CORN
Journal Title: Наукові доповіді НУБіП України - Year 2017, Vol 2, Issue 2
Abstract
This article present the results of investigation corn cold tolerance inheritance. It is necessary to know the cold tolerance inheritance for creating cold tolerant high yielding corn hybrids for North Forest Steppe and Polissya of Ukraine. Were tested seven cold tolerant inbred lines Co 255, HLG 1203, HLG 1238, Q 170, UCH 37, Ak 135, FV 243, which are source of cold tolerance and three nontolerant inbred lines F2, P 165 and L155 for investigation of cold tolerance inheritance. Inheritance investigation have done on field germination of early sowing (soil temperature +6-6,5°С). During investigation were tested 45 hybrids received from crossing 10 inbred lines and their parents. Determined, involving in crossing one cold tolerant of inbred line influence positively on receiving cold tolerant hybrid. In 78% of received hybrids registered positive overdominance and dominance cold tolerant inheritance. This mean that it is necessary to include cold tolerant inbred lines during creating high yielding cold tolerant hybrids for growing in north area of Ukraine. Cold tolerant hybrids growing in commercial fields sub serve yield increasing in this area.
Authors and Affiliations
S. A. Krasnovskyi
Keywords
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