The effect of time of cutting on yield and the quality of the hop hybrid varieties Harmonie, Rubín and Agnus

The influence of mechanized cutting time on the yield and quality of hops was studied for three years (2007, 2008 and 2009) in three Czech hybrid varieties Harmonie, Rubín and Agnus. The cutting term classified as 'early' was carried out at the turn of March and April. Further cutting date...

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Main Authors: K. Krofta, J. Ježek
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2010-12-01
Series:Plant, Soil and Environment
Subjects:
Online Access:https://pse.agriculturejournals.cz/artkey/pse-201012-0004_the-effect-of-time-of-cutting-on-yield-and-the-quality-of-the-hop-hybrid-varieties-harmonie-rubin-and-agnus.php
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author K. Krofta
J. Ježek
author_facet K. Krofta
J. Ježek
author_sort K. Krofta
collection DOAJ
description The influence of mechanized cutting time on the yield and quality of hops was studied for three years (2007, 2008 and 2009) in three Czech hybrid varieties Harmonie, Rubín and Agnus. The cutting term classified as 'early' was carried out at the turn of March and April. Further cutting dates were made at intervals of 7-10 days and they were classified as 'middle' and 'late' ones. Yield and contents of alpha acids were evaluated during the machine harvest. The measured data revealed no statistical relationship between term of cutting, alpha acid content and yield in any of the tested cultivars. However, during the experimental period considerable inter-annual differences were observed, especially in the yield. Average yield in the range of 2.0-2.5 t/ha in the period 2007-2008 decreased to 1.2-1.9 t/ha in 2009 due to downy mildew attack. On the basis of the obtained data it can be recommended to cut the hybrid varieties Harmonie, Rubín and Agnus in the first ten days of April, taking into account other factors such as age and the location of hop garden and current weather conditions.
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spelling doaj.art-40f6dd24923e4dd28d8a836b5eca42122023-02-23T03:45:38ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682010-12-01561256456910.17221/187/2010-PSEpse-201012-0004The effect of time of cutting on yield and the quality of the hop hybrid varieties Harmonie, Rubín and AgnusK. Krofta0J. Ježek1Hop Research Institute Co. Ltd., Žatec, Czech RepublicHop Research Institute Co. Ltd., Žatec, Czech RepublicThe influence of mechanized cutting time on the yield and quality of hops was studied for three years (2007, 2008 and 2009) in three Czech hybrid varieties Harmonie, Rubín and Agnus. The cutting term classified as 'early' was carried out at the turn of March and April. Further cutting dates were made at intervals of 7-10 days and they were classified as 'middle' and 'late' ones. Yield and contents of alpha acids were evaluated during the machine harvest. The measured data revealed no statistical relationship between term of cutting, alpha acid content and yield in any of the tested cultivars. However, during the experimental period considerable inter-annual differences were observed, especially in the yield. Average yield in the range of 2.0-2.5 t/ha in the period 2007-2008 decreased to 1.2-1.9 t/ha in 2009 due to downy mildew attack. On the basis of the obtained data it can be recommended to cut the hybrid varieties Harmonie, Rubín and Agnus in the first ten days of April, taking into account other factors such as age and the location of hop garden and current weather conditions.https://pse.agriculturejournals.cz/artkey/pse-201012-0004_the-effect-of-time-of-cutting-on-yield-and-the-quality-of-the-hop-hybrid-varieties-harmonie-rubin-and-agnus.phphopshop cuttingterm of cuttingyield of hopsquality of hopsalpha acid
spellingShingle K. Krofta
J. Ježek
The effect of time of cutting on yield and the quality of the hop hybrid varieties Harmonie, Rubín and Agnus
Plant, Soil and Environment
hops
hop cutting
term of cutting
yield of hops
quality of hops
alpha acid
title The effect of time of cutting on yield and the quality of the hop hybrid varieties Harmonie, Rubín and Agnus
title_full The effect of time of cutting on yield and the quality of the hop hybrid varieties Harmonie, Rubín and Agnus
title_fullStr The effect of time of cutting on yield and the quality of the hop hybrid varieties Harmonie, Rubín and Agnus
title_full_unstemmed The effect of time of cutting on yield and the quality of the hop hybrid varieties Harmonie, Rubín and Agnus
title_short The effect of time of cutting on yield and the quality of the hop hybrid varieties Harmonie, Rubín and Agnus
title_sort effect of time of cutting on yield and the quality of the hop hybrid varieties harmonie rubin and agnus
topic hops
hop cutting
term of cutting
yield of hops
quality of hops
alpha acid
url https://pse.agriculturejournals.cz/artkey/pse-201012-0004_the-effect-of-time-of-cutting-on-yield-and-the-quality-of-the-hop-hybrid-varieties-harmonie-rubin-and-agnus.php
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AT kkrofta effectoftimeofcuttingonyieldandthequalityofthehophybridvarietiesharmonierubinandagnus
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