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Factors affecting changes of frost resistance of some apple clonal rootstocks

, : Factors affecting changes of frost resistance of some apple clonal rootstocks. Acta Horticulturae (81): 103-106

Cold hardiness was determined in 3 years' trials in the shoots of one-year-old rootstocks (the apple Antonovka, MM. 104, MM. 106 and Alnarp 2). Diurnal fluctuations in air temperature were the most influential factor.

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Related references

Seregin, N.F., 1968: Frost resistance of clonal apple rootstocks. Observations on ten dwarf rootstocks showed the hardiest to be Bystrecovskoe, which tolerates November frosts without snow cover at Novgorod and showed a loss of only 17.5% after frosts of-25 degrees C. in Lithuania, where that for Paradise VIII w...

Shylapnikov, S.B., 1970: The frost resistance of interstocks of clonal apple rootstocks. Artificial freezing trials were conducted with 1- and 3-year-old trees of the apple cvs Antonovka Obykno-vennaya and Shtreifling provided with the following interstocks: M.IX, red-leaved Paradise, PK-14, MM.106, MM.109, A-2 and hybrid 290. During...

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