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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.

Accession: 000657986

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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...

Korovin, V.A., 1960: Frost resistance of new clonal apple rootstocks). nauc.. Varieties of rootstocks which combine winter hardiness with ease of propagation by layering have been obtained by fertilizing the winter-hardy apple varieties Anis, Grusovka Moskovskaja and Tajga with pollen mixtures of Paradise VIII + Paradise IX...

Trunova, V.A., 1978: Frost resistance of the root system of apple clonal rootstocks. Clonal rootstocks (V.I. Budagovskii selection) were subjected to artificial freezing and compared with Antonovka Obyknovennaya and red-leaved Paradise seedlings and M.9. Of the 102 test plants the following showed good frost resistance after holdi...

Trunova, V.A., 1979: Frost resistance and root regeneration in new clonal apple rootstocks. Of new rootstocks studied for frost resistance at -16.5 deg C, the following showed complete regeneration:60-160, 61-32, 66-13 (185), 66-95 and 67-23(18).

Trunova, V.A., 1979: Frost resistance and root regeneration in new apple clonal rootstocks. Twenty local apple rootstocks and M.3 were assessed for the extent of damage and callus, shoot and root regeneration after treatment at -16.5 deg C in January. Complete regeneration was noted in the following: 60-160, 61-32, 66-13(185), 66-95, 67-...

Burkovskii, V.V.; Matvienko, N.V.; Kumpan, E.D., 1984: Study of the frost resistance of clonal rootstocks of apple under artificial cooling. Of 38 recommended and promising stocks tested in the Poles'e (Pripyat' Marshes) area of the Ukraine for frost resistance of the roots and above-ground parts, the most resistant were 3-3-35, 57-491, PB9, 62-396 and 57-490.

Korovin, V.A., 1967: Frost resistance of the roots of clonal apple rootstocks in relation to their compatibility with the scion. The frost resistance of the roots of ungrafted and grafted apple rootstocks was studied by direct freezing at -8 degrees to -16 degrees C. In compatible rootstock-scion combinations resistance was similar to that in ungrafted rootstocks, whereas i...

Verzilin, A.V.; Guseva, N.N.; Trunov, Y.V., 1997: Evaluation of winter-hardy clonal rootstocks of apple for frost resistance of the root system. Results are outlined from tests of stocks bred at the Michurin Agricultural Academy in Russia. Data are tabulated reflecting resistance (damage and regeneration of the root system) in 7 dwarfing and 9 semidwarfing stocks after exposure to a temper...

Sidnin, A.S., 1981: Frost resistance and winter hardiness of apple varieties on clonal rootstocks in the lower Volga region. The results are presented of a study of (1) the degree of frost damage to tissues after exposure of one-year-old shoots to subzero temperatures and (2) the degree of damage to fruiting buds after the winter during 1971-74 in a number of varieties...