Tree architecture of columnar apple tree genotypes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25271121%3A_____%2F21%3AN0000071" target="_blank" >RIV/25271121:_____/21:N0000071 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.17660/ActaHortic.2021.1314.42 " target="_blank" >http://dx.doi.org/10.17660/ActaHortic.2021.1314.42 </a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17660/ActaHortic.2021.1314.42 " target="_blank" >10.17660/ActaHortic.2021.1314.42 </a>

Result language

angličtina

Original language name

Tree architecture of columnar apple tree genotypes

Original language description

Growth habit of columnar apple genotypes leads to a unique form of plant architecture characterized by the tree axis with short fruit spurs instead of lateral branches. Columnar tree growth habit was discovered in the 1960s and described as ‘McIntosh Wijcik’. The compact shape of columnar type apple trees is based on their very thick and upright stems with almost no difference in diameter between the top and the bottom. Apple cultivars carrying Columnar (Co) gene differ in tree vigor, density, and length of fruit spurs. Differences among genotypes in the total tree growth, the annual increase in primary axis length, the length of spurs, their density along the tree axis, and the tendency to biennial cropping all affect yield and economy of growing. We evaluated a total of 101 genotypes of B clones (F1 hybrids grafted on rootstocks). Out of this number, 80 genotypes carrying the Co gene were compared with 21 genotypes that exhibited an extremely weak growth but not carrying Co gene. The mean annual increase in the primary axis length of tested genotypes carrying Co gene responsible for columnar growth was 0.25 m, the mean number of fruit spurs on the length of 1 m of the tree axis was 33.2 pieces, and the mean length of fruit spurs was 68.6 mm. Optimal growth of the columnar apple cultivars is discussed. The evaluation of columnar apple genotypes in this work can be used in practical breeding programs for forming the optimal tree canopy.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

40401 - Agricultural biotechnology and food biotechnology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Acta Horticulturae, International Symposium on Precision Management of Orchards and Vineyards

ISBN

9789462613126

ISSN

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e-ISSN

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Number of pages

7

Pages from-to

337-343

Publisher name

ISHS

Place of publication

Leuven, Belgium

Event location

Palermo, Itálie

Event date

Oct 7, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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