Biological features of the development of early potato varieties in the Murmansk region

Potato (Solanum tuberosum L.) is a fairly popular agricultural crop in Russia, the tubers of which are main food population. For North, it important to replenish assortment early potato varieties adapted growing extreme conditions. The aim this research was study development plants and mid-early Murmansk region. Methods . article presents results studying developmental biology productivity elements 63 from VIR world collection. Khibinskiy ranniy variety used as standard. conducted on territory Polar Experimental Station Apatity. soil experimental plot sandy loam, highly cultivated, organic matter content 8,7%, pH 5,2; Р2О5 – 103 mg/100 g, К2О 39,2 g soil. total area 286,5 m2 , counting 5 m2, planting scheme 70x30 cm, experiment repeated three times, distribution randomized. Results Phenological observations revealed with shortest interphase periods: Ognivo, Sundinsky ranniy, Uralsky Amazone, Aster, Lady Claire. Varieties Daryonka, Lyubava, Dolphin formed berries within years. Conclusion Concorde, Corine и Karatop exceeded standart at 50, 60, 75 days years study, shows ability cultivars for intensive tuberization stages, combined high stable North. significant influence meteorological conditions dynamics plants, their yield adaptive local has been identified. There singled out that characterized by consistently rates tuber accumulation possessing ability, can be breeding maturity North regions.