Nitrogen fertilization and chemical thinning with 6-benzyladenine affect fruit set and quality of golden delicious apples

Milić, B.; Čabilovski, Ranko; Keserović, Z.; Manojlović, Maja; Magazin, Nenad; Doric, M.

doi:10.1016/j.scienta.2012.03.029

Cited by 7 publications

(4 citation statements)

References 23 publications

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“…Both cytokinins and gibberellins can induce branching as a result of the spur growth stimulus in apple tree seedlings (GREENE et al, 2016). Benzyladenine, a cytokinin-based regulator commonly used in the chemical treatment of pear and apple trees (MILIĆ et al, 2012;SCHRÖDER et al, 2013;BOUND et al, 2015), being used alone or in combination with gibberellins (GA 3 and GA 4+7 ), in multiple applications, increases the formation of lateral branches MILLER, 1984;ROBINSON et al, 2014;GREENE et al, 2016).…”

Section: Production Of Apple Tree Seedlingsmentioning

confidence: 99%

Advances in fruit crop propagation in Brazil and worldwide-apple trees

et al. 2019

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Apple production has been an important economic activity worldwide. The wide dissemination and cultivation of apple trees in several regions of the world is due to the development of propagation techniques from its domestication to the present time. Apple trees can be propagated by seeds, restricted to the use in breeding programs, and multiplied by several methods of vegetative propagation, both for rootstocks and apple scion cultivars. Considering the high technological level currently used in apple crop management, plant propagation plays a very important role in order to enable seedling production with high morphological quality and free of diseases, requiring new advances and propagation improvements in new releases of rootstocks and apple scions.

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Section: Production Of Apple Tree Seedlingsmentioning

confidence: 99%

Advances in fruit crop propagation in Brazil and worldwide-apple trees

et al. 2019

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“…A ureia peletizada é protegida com polímeros que criam uma barreira física ao redor do grânulo do fertilizante, a fi m de diminuir a velocidade de liberação do N (MORGAN et al, 2009). A possibilidade de liberação mais lenta de N pode fazer com que maior quantidade do nutriente seja absorvida pela planta e isso pode se refl etir positivamente no teor de N em folhas, aumentando o conteúdo de clorofi la, que pode se refl etir em aumento da taxa fotossintética (LI et al, 2013) e até na produção de frutos (NAVA et al, 2007;MILIC´ et al, 2012). O trabalho objetivou avaliar o teor de N total em folhas, a produção e o fl uxo de N no solo e na solução, em pomar de macieira com a aplicação de distintas fontes de N. (4,5m entre linhas e 1,5m entre plantas).…”

Section: A Aplicação De Fontes De Nitrogênio (N) Em Pomar De Macieiraunclassified

Produção e nitrogênio no solo e na solução em pomar demacieira submetido à aplicação de fontes de nutrientes

et al. 2014

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A aplicação de fontes de nitrogênio (N) em pomar de macieira pode incrementar o teor do nutriente no solo ao longo do ciclo, afetar o estado nutricional e a produção, mas parte do N pode ser perdido por lixiviação. O trabalho objetivou avaliar o teor de N total em folhas, a produção e o fluxo de N no solo e na solução, em um pomar de macieira com a aplicação de distintas fontes de N, em um experimento em Urubici (SC). Plantas foram selecionadas, receberam a aplicação de ureia (U), ureia peletizada (UP) e cama sobreposta de suínos (CS); além de um tratamento sem adubação (SA). Nas safras 2011/2012 e 2012/2013 foram analisados teores de N em folhas completas e mensurados o crescimento das plantas e a produção de frutos. Foram coletadas amostras de solo e de solução, e analisados os teores de N-NH4 + e N-NO3 - ao longo da segunda safra. Aplicações de U, UP e CS aumentaram o rendimento da macieira no segundo ano, mas o teor de N em folhas não foi afetado nas duas safras. A aplicação de N afetou o fluxo de formas do nutriente no solo e na solução ao longo do ciclo da cultura, com pequenos incrementos nos teores do solo e da solução em períodos próximos à aplicação das diferentes fontes de N

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“…The recent studies are focused on the attempts to predict the thinning response of apple trees by considering factors such as the concentration of the chemical used for thinning, timing of the spray application, varietal and rootstock differences, climate factors, pruning, spraying technique, dosage, age of tree, vigor, crop in the previous year, the required size of fruits, and interaction between two or more plant growth regulators as sources of variation [Pellerin et al 2012, Greene et al 2013. Milić et al [2012a] reported that the same thinning treatment with benzyladenine (BA) in conditions of excess N supply might lead to a weak thinning response, smaller fruit weight, some advanced maturity and poorer storage ability. Therefore, when deciding on the BA rate for thinning apple fruitlets, N regime should be taken into consideration.…”

Section: Introductionmentioning

confidence: 99%

Interactions Between Nitrogen Fertilization and Apple Fruit Thinning With Naa

Milić

Čabilovski

Keserović

et al. 2017

Acta Sci. Pol. Hortorum Cultus

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The objective of this research was to determine the effects of chemical thinning with α-naphthaleneacetic acid (NAA) and nitrogen (N) fertilization, as well as their interaction in relation to fruit set and physical properties of apple cv. Golden Delicious Reinders®. Nitrogen rates used were 30 and 60 kg•ha −1 N applied at the pink bud stage. NAA for fruit thinning was applied at the rates of 10, 12 and 14 µl•l −1. Fruit set was increased by increasing the amount of N applied while the efficacy of NAA for fruit thinning was not linearly correlated to the concentration of the chemical. The total number of fruits per tree was inconsistently reduced in NAA treatments at 30 and 60 kg•ha −1 N, while total yield was reduced by thinning at 60 kg•ha −1 N, meaning that apple trees are more responsive to NAA application at higher N supply. At sufficient N supply, fruits responded more intensively to thinning with NAA by increasing their growth. Thinning with NAA caused a significant decrease in flesh firmness only in fruits from unfertilized plot.

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Nitrogen fertilization and chemical thinning with 6-benzyladenine affect fruit set and quality of golden delicious apples

Cited by 7 publications

References 23 publications

Advances in fruit crop propagation in Brazil and worldwide-apple trees

Advances in fruit crop propagation in Brazil and worldwide-apple trees

Produção e nitrogênio no solo e na solução em pomar demacieira submetido à aplicação de fontes de nutrientes

Interactions Between Nitrogen Fertilization and Apple Fruit Thinning With Naa

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