Evaluation of Flower Bud Removal Treatments on Growth of Young Blueberry Plants

Williamson, Jeffrey G.; NeSmith, D. Scott

doi:10.21273/hortsci.42.3.571

Cited by 10 publications

(1 citation statement)

References 5 publications

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“…Moreover, in Citra, fruit yields were much higher than in HC, adding further to the stress brought on by young plants carrying a heavy cropload, which often results in reduced vegetative growth. Increased plant dry weight of young highbush blueberry cultivars when flower buds were removed has been reported (Strik and Buller, 2005;Williamson and NeSmith, 2007). The hypothesis that Table 4.…”

Section: Discussionmentioning

confidence: 97%

Vegetative Growth of Three Southern Highbush Blueberry Cultivars Obtained from Micropropagation and Softwood Cuttings in Two Florida Locations

Marino¹,

Williamson²,

Olmstead³

et al. 2014

horts

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Field performance of southern highbush blueberry (Vaccinium corymbosum L. interspecific hybrids) cultivars Emerald, Jewel, and Primadonna derived from softwood cuttings (SW) and tissue culture (TC) was evaluated in Citra and Haines City, FL, in 2010–12. Both fields were planted in Apr. 2010 on sandy soil amended with pine bark. Plant height and width were recorded at both locations, from which plant canopy volume was calculated. Additionally, whole plants were harvested at planting and after the first growing season, after the first fruit harvest, and after the second growing season. Average plant height and width, number of major canes, and total shoot number were determined at each sampling date. Dry weights for roots, crowns, canes, shoots, and leaves were obtained. Although propagation method affected plant canopy volume during the first season, no effects were observed by the end of the second growing season. At planting and after the first and second growing seasons, TC plants of the three cultivars had more major canes. Total shoot number per plant was greater for TC ‘Jewel’ at all dates but ‘Emerald’ TC plants had more shoots only at planting and after the first growing and harvest seasons. Tissue culture resulted in increased plant dry weights of ‘Jewel’ and ‘Emerald’ after the first and second growing seasons. There were no significant differences in total number of shoots or plant dry weight between TC and SW-derived ‘Primadonna’ plants at any point during the study.

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Section: Discussionmentioning

confidence: 97%

Vegetative Growth of Three Southern Highbush Blueberry Cultivars Obtained from Micropropagation and Softwood Cuttings in Two Florida Locations

Marino¹,

Williamson²,

Olmstead³

et al. 2014

horts

Self Cite

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An estimate of potential blueberry yield using regression models that relate the number of fruits to the number of flower buds and to climatic variables

Salvo

Muñoz

Ávila

et al. 2012

Scientia Horticulturae

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Quebra de dormência e cultivo protegidona produção de plantas de mirtileiro

et al. 2014

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resumo -o objetivo deste trabalho foi avaliar o efeito da época de aplicação da cianamida hidrogenada (ch) em túnel baixo e campo aberto, na produção e no desenvolvimento de plantas de mirtileiro. o experimento consistiu na aplicação de cianamida hidrogenada em quatro épocas (29-06-12, 09-07-12, 19-07-12, 30-07-12) e dois sistemas de cultivo (túnel baixo e campo aberto), além de um tratamento adicional ou testemunha (sem aplicação de ch). o delineamento experimental foi em blocos ao acaso, com três repetições, sendo a cultivar utilizada a Powderblue. As variáveis analisadas foram: início da floração, porcentagem de brotação, comprimento de ramo, massa seca das folhas, teor de clorofila, produção, massa média de frutos, diâmetro médio de frutos, sólidos solúveis. A aplicação de CH em 29-06 e 09-07 antecipou a floração e a produção. Já a brotação foi antecipada quando a ch foi aplicada em 09-07 e 19-07. em relação aos sistemas de cultivo, observou-se que o túnel baixo antecipou a floração e aumentou a produção. Conclui-se que a aplicação de cianamida hidrogenada, no final de junho/início de julho, antecipa o início da floração, da brotação e da produção, bem como o uso do túnel baixo que antecipa a floração e aumenta a produção. termos para indexação: Vaccinium spp.; cianamida hidrogenada, sistema cultivo, túnel baixo. dormancy BreaKInG oF and protected cultIvatIon on BlueBerry yIeldABSTRACT -The aim of this study was to evaluate the effect of timing hydrogen cyanamide (HC) applied in low tunnels and open field, on blueberry yield and development. The experiment consisted of hydrogen cyanamide application three times (06/29/12, 07/09/12, 07/19/12, 07/30/12) and two cultivation systems (low tunnel and open field), and additional treatment or control (without HC). The experimental design was a randomized block design with three replications, and the cultivar used was Powderblue. The variables analyzed were: beginning of flowering, budding percentage, branch length, leaf dry weight, chlorophyll content, yield, average fruit weight, fruit diameter and soluble solids. The application of HC in 06/29 and 07/09 anticipated flowering and production. Already budding was anticipated when the HC was applied in 07/09/12 and 07/19/12. Regarding cultivation systems observed that the tunnel low anticipated the flowering and increased yield. We conclude that the application of hydrogen cyanamide, in late June/early July, accelerate the onset of flowering, budding and production as well as use the low tunnel which anticipates the flowering and increases yield.

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Evaluation of Flower Bud Removal Treatments on Growth of Young Blueberry Plants

Cited by 10 publications

References 5 publications

Vegetative Growth of Three Southern Highbush Blueberry Cultivars Obtained from Micropropagation and Softwood Cuttings in Two Florida Locations

Vegetative Growth of Three Southern Highbush Blueberry Cultivars Obtained from Micropropagation and Softwood Cuttings in Two Florida Locations

An estimate of potential blueberry yield using regression models that relate the number of fruits to the number of flower buds and to climatic variables

Quebra de dormência e cultivo protegidona produção de plantas de mirtileiro

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