Effect of 6-benzyladenine application time on apple thinning of cv. 'Golden Delicious' and cv. 'Idared'

Apple thinning of cv. 'Golden Delicious' and cv. 'Idared' was studied after the application of 6-benzyladenine (BA) 100 mgl-1 and 50 mgl-1 respectively, applied at different time of blooming period and over a wider range of fruitlet diameter. When BA 100 mgl-1 was applied on cv....

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Main Authors: Barbara AMBROŽIČ TURK, Matej STOPAR
Format: Article
Language:English
Published: University of Ljubljana Press (Založba Univerze v Ljubljani) 2010-05-01
Series:Acta Agriculturae Slovenica
Subjects:
Online Access:https://journals.uni-lj.si/aas/article/view/14802
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author Barbara AMBROŽIČ TURK
Matej STOPAR
author_facet Barbara AMBROŽIČ TURK
Matej STOPAR
author_sort Barbara AMBROŽIČ TURK
collection DOAJ
description Apple thinning of cv. 'Golden Delicious' and cv. 'Idared' was studied after the application of 6-benzyladenine (BA) 100 mgl-1 and 50 mgl-1 respectively, applied at different time of blooming period and over a wider range of fruitlet diameter. When BA 100 mgl-1 was applied on cv. 'Golden Delicious', significant reduction in final fruit number per tree was observed if applied at the end of blooming period or when fruitlet diameters were 6 mm, 15 mm or 20 mm, but thinning was not significant if applied at full bloom or at 10 mm or 25 mm fruitlet diameter. The share of bigger fruits of cv. 'Golden Delicious' (> 65mm) was increased at all BA application time treatments, but significantly only in the treatment of hand thinned trees. Regarding the BA applications carried out on cv. 'Idared', significant thinning response was noticed in the case of BA sprayed at the end of bloom and at 10 mm of fruit diameter. The mean fruit weight of cv. 'Idared' apples was increased significantly only if BA was applied at 10 mm fruitlet diameter. Although the thinning results were inconsistent for two studied cultivars it was demonstrated from the trial that BA could be active as a thinner if applied over a wider phenological interval, at the end of blooming period up to 20 mm fruitlet diameter.
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publishDate 2010-05-01
publisher University of Ljubljana Press (Založba Univerze v Ljubljani)
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spelling doaj-art-35d5dfc152814f6b924f2acaee3f0f022025-08-20T02:58:55ZengUniversity of Ljubljana Press (Založba Univerze v Ljubljani)Acta Agriculturae Slovenica1854-19412010-05-01951697310.14720/aas.2010.95.1.1480221194Effect of 6-benzyladenine application time on apple thinning of cv. 'Golden Delicious' and cv. 'Idared'Barbara AMBROŽIČ TURK0Matej STOPAR1Agricultural Institute of Slovenia, Hacquetova 17, SI-1000 Ljubljana, SloveniaAgricultural Institute of Slovenia, Hacquetova 17, SI-1000 Ljubljana, SloveniaApple thinning of cv. 'Golden Delicious' and cv. 'Idared' was studied after the application of 6-benzyladenine (BA) 100 mgl-1 and 50 mgl-1 respectively, applied at different time of blooming period and over a wider range of fruitlet diameter. When BA 100 mgl-1 was applied on cv. 'Golden Delicious', significant reduction in final fruit number per tree was observed if applied at the end of blooming period or when fruitlet diameters were 6 mm, 15 mm or 20 mm, but thinning was not significant if applied at full bloom or at 10 mm or 25 mm fruitlet diameter. The share of bigger fruits of cv. 'Golden Delicious' (> 65mm) was increased at all BA application time treatments, but significantly only in the treatment of hand thinned trees. Regarding the BA applications carried out on cv. 'Idared', significant thinning response was noticed in the case of BA sprayed at the end of bloom and at 10 mm of fruit diameter. The mean fruit weight of cv. 'Idared' apples was increased significantly only if BA was applied at 10 mm fruitlet diameter. Although the thinning results were inconsistent for two studied cultivars it was demonstrated from the trial that BA could be active as a thinner if applied over a wider phenological interval, at the end of blooming period up to 20 mm fruitlet diameter.https://journals.uni-lj.si/aas/article/view/14802apple (malus x domestica borkh.)6-benzyladenineflower thinningfruit thinningfruitlet diameter
spellingShingle Barbara AMBROŽIČ TURK
Matej STOPAR
Effect of 6-benzyladenine application time on apple thinning of cv. 'Golden Delicious' and cv. 'Idared'
Acta Agriculturae Slovenica
apple (malus x domestica borkh.)
6-benzyladenine
flower thinning
fruit thinning
fruitlet diameter
title Effect of 6-benzyladenine application time on apple thinning of cv. 'Golden Delicious' and cv. 'Idared'
title_full Effect of 6-benzyladenine application time on apple thinning of cv. 'Golden Delicious' and cv. 'Idared'
title_fullStr Effect of 6-benzyladenine application time on apple thinning of cv. 'Golden Delicious' and cv. 'Idared'
title_full_unstemmed Effect of 6-benzyladenine application time on apple thinning of cv. 'Golden Delicious' and cv. 'Idared'
title_short Effect of 6-benzyladenine application time on apple thinning of cv. 'Golden Delicious' and cv. 'Idared'
title_sort effect of 6 benzyladenine application time on apple thinning of cv golden delicious and cv idared
topic apple (malus x domestica borkh.)
6-benzyladenine
flower thinning
fruit thinning
fruitlet diameter
url https://journals.uni-lj.si/aas/article/view/14802
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