Articles
Use of peach-almond hybrid rootstocks and two interstocks for the apricot cultivar ‘Hargrand’
Article number
1449_47
Pages
349 – 354
Language
English
Abstract
The possibilities of growing apricot cultivars on rootstocks with good drought resistance, lime resistance and tolerance to replanting soils using peach and European plum interstocks were studied for four years.
Results showed that the use of GF677 and Garnem rootstocks with interstocks of Redhaven (Prunus persica) and Stanley (Prunus domestica) significantly accelerated crown development of ‘Hargrand’ apricot trees due to the strong vigour and abundant branching with wide shoot angles induced by both peach-almond hybrids.
In these combinations, the number of flower buds per linear meter on annual shoots was significantly greater compared to the most commonly used ‘Myrobalan’ (Prunus cerasifera) seedling rootstock which formed smaller plants alone, as well as in combination with Stanley interstock.
At the end of the study, the variants with the rootstocks GF677 and Garnem grafted with the interstock Stanley had significantly larger stem diameters than the other combinations included in the study.
However, the smaller stem diameter of GF677, Garnem and the interstock Redhaven, did not result in significant differences in scion thickness.
The first significant yield obtained in 2022 showed significantly higher productivity of the variants in which the peach-almond hybrids GF677 and Garnem were used compared to the commonly used ‘Myrobalan’ seedling rootstock.
There was no difference in productivity under the influence of the two interstocks.
Fruit size was significantly larger in the combinations of GF677 and Garnem with Stanley interstock, and the smallest fruits were obtained from trees on the ‘Myrobalan’ seedling rootstock.
The formation of suckers was noted only when the ‘Myrobalan’ seedling rootstock was used.
Results showed that the use of GF677 and Garnem rootstocks with interstocks of Redhaven (Prunus persica) and Stanley (Prunus domestica) significantly accelerated crown development of ‘Hargrand’ apricot trees due to the strong vigour and abundant branching with wide shoot angles induced by both peach-almond hybrids.
In these combinations, the number of flower buds per linear meter on annual shoots was significantly greater compared to the most commonly used ‘Myrobalan’ (Prunus cerasifera) seedling rootstock which formed smaller plants alone, as well as in combination with Stanley interstock.
At the end of the study, the variants with the rootstocks GF677 and Garnem grafted with the interstock Stanley had significantly larger stem diameters than the other combinations included in the study.
However, the smaller stem diameter of GF677, Garnem and the interstock Redhaven, did not result in significant differences in scion thickness.
The first significant yield obtained in 2022 showed significantly higher productivity of the variants in which the peach-almond hybrids GF677 and Garnem were used compared to the commonly used ‘Myrobalan’ seedling rootstock.
There was no difference in productivity under the influence of the two interstocks.
Fruit size was significantly larger in the combinations of GF677 and Garnem with Stanley interstock, and the smallest fruits were obtained from trees on the ‘Myrobalan’ seedling rootstock.
The formation of suckers was noted only when the ‘Myrobalan’ seedling rootstock was used.
Publication
Authors
S.G. Tabakov, A.I. Yordanov, T.D. Donkov
Keywords
Prunus persica, Prunus armeniaca, growth, productivity, peach-almond, interstock, yield
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