Tree architecture of columnar apple tree genotypes

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Tree architecture of columnar apple tree genotypes

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Tree architecture of columnar apple tree genotypes

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

40401 - Agricultural biotechnology and food biotechnology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

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

ISBN

9789462613126

ISSN

—

e-ISSN

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Počet stran výsledku

7

Strana od-do

337-343

Název nakladatele

ISHS

Místo vydání

Leuven, Belgium

Místo konání akce

Palermo, Itálie

Datum konání akce

7. 10. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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