Uniconazole is an effective blossom thinner for ‘Bing’ cherry (Prunus avium)

Stern, Raphael A.; Raz, Amir; Applebaum, Steve; Meiri, Ami; Martin, Gottfried

doi:10.1016/j.scienta.2009.06.015

Cited by 8 publications

(3 citation statements)

References 21 publications

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“…The options of chemical thinning of stone fruit are limited [29]. Tests have been conducted on thinning methods, such as blossom burning formulations, growth regulators and photosynthesis inhibitors [30,31]. Chemical thinning may be carried out during flowering or shortly thereafter to reduce the load on trees during the growing period [32].…”

Section: Introductionmentioning

confidence: 99%

Improving of Cherry Fruit Quality and Bearing Regularity by Chemical Thinning with Fertilizer

Kurlus¹,

Rutkowski²,

Łysiak³

2020

Agronomy

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The study’s objective was to evaluate the influence of thinning on the quality and regularity of yield of ‘Regina’ cherries grown on a dwarf Gisela 5 rootstock. The experiments were conducted in the years 2009–2012 in Western Poland. Trees were thinned using a chemical agent, ammonium thiosulphate (ATS), at doses of 20 g ATS L−1, 30 g ATS L−1 and 40 g ATS L−1, and by hand, and the results of chemical and hand thinning were compared with those obtained for unthinned trees. The course of weather conditions in winter and during flowering had a significant impact on yield. Chemical thinning is known to be an effective method to regulate fruiting of pome trees, but it can also be successful if applied to cherry trees, as reflected by the alternate bearing index, which was the lowest after applying ATS at a dose of 40 g. ATS treatment improved fruit quality in full crop years. Thinning resulted in, among other things, larger and darker fruit and higher content of total soluble solids and titratable acidity. Treatment with 40 g ATS L−1 significantly stimulated the vegetative growth of trees.

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Section: Introductionmentioning

confidence: 99%

Improving of Cherry Fruit Quality and Bearing Regularity by Chemical Thinning with Fertilizer

Kurlus¹,

Rutkowski²,

Łysiak³

2020

Agronomy

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“…The options of chemical thinning of stone fruit are limited [28]. Tests have been conducted on thinning methods such as burning formulations, growth regulators and photosynthesis inhibitors [35,36]. Chemical thinning may be carried out during flowering or shortly thereafter to reduce the load on trees during the growing period [37].…”

Section: Introductionmentioning

confidence: 99%

Improving of Cherry Fruit Quality and Bearing Regularity by Chemical Thinning with Fertilizer

Kurlus¹,

Rutkowski²,

Łysiak³

2020

Preprint

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The study’s objective was to evaluate the influence of thinning on the quality and regularity of yield of 'Regina' cherries grown on a dwarf Gisela 5 rootstock. The experiments were conducted in the years 2009-2012 in Western Poland. Trees were thinned using a chemical agent, ammonium thiosulphate (ATS) at doses of 20g ATS × L-1, 30g ATS × L-1 and 40g ATS × L-1, and by hand, and the results of chemical and hand thinning were compared with those obtained for unthinned trees. The course of weather conditions in winter and during flowering had a significant impact on yield. Chemical thinning is known to be an effective method to regulate fruiting of pome trees, but it can also be successful if applied to cherry trees, as reflected by the alternate bearing index, which was the lowest after applying ATS at a dose of 40g. ATS treatment improved fruit quality in full crop years. Thinning resulted in, among other things, larger and darker fruit and higher content of total soluble solids and titratable acidity. Treatment with 40g ATS × L-1 significantly stimulated the vegetative growth of trees.

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“…Growing self-fertile sweet cherry cultivars which provide high and regular yields (Whiting et al 2006) may also result in overcropping, small fruit size and lower sugar contents (Lane, Schmid 1984). Regulating sweet cherry crop load only by dormant pruning is insufficient to provide high fruit quality, while manual removal of flowers and fruits is not practical due to high labour costs (Whiting, Ophardt 2005;Stern et al 2009). By manually removing entire spurs, individual flower buds or flowers, a higher fruit weight and better fruit size distribution of self-fertile cv.…”

mentioning

confidence: 99%

Fruit set and quality of self-fertile sweet cherries as affected by chemical flower thinning

Milić¹,

Keserović²,

Doric³

et al. 2015

Hortic. Sci.

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Milić B., Keserović Z., Dorić M., Ognjanov V., Magazin N. (2015): Fruit set and quality of self-fertile sweet cherries as affected by chemical flower thinning. Hort. Sci., 42: 119-124.Self-fertile cherry cultivars can produce an excessive crop of small fruits with low sugar content. In order to prevent overcropping and provide high quality fruits, chemical thinning of flowers is required. Ammonium thiosulfate (ATS), surfactants and plant oils are used to thin flowers, mostly in apple and peach. The purpose of this research was to compare the effectiveness of the blossom thinners ATS, surfactant Silwet and rapeseed oil (Ogriol) in reducing fruit set of the self-fertile sweet cherry cultivars Alex and Sunburst and their potential to improve fruit quality. At lower rates (1 and 2%) ATS did not consistently reduce fruit set, while at higher rate (3%) it produced visible phytotoxicity on the leaves. ATS treatments did not increase the average weight and diameter of fruits. 10 and 30 ml/l Ogriol application did not reduce fruit set significantly or improve fruit quality of self-fertile sweet cherries. The surfactant Silwet applied at the rates of 1 or 3 ml/l was found to consistently thin self-fertile sweet cherry cultivars, leading to better fruit quality.

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Uniconazole is an effective blossom thinner for ‘Bing’ cherry (Prunus avium)

Cited by 8 publications

References 21 publications

Improving of Cherry Fruit Quality and Bearing Regularity by Chemical Thinning with Fertilizer

Improving of Cherry Fruit Quality and Bearing Regularity by Chemical Thinning with Fertilizer

Improving of Cherry Fruit Quality and Bearing Regularity by Chemical Thinning with Fertilizer

Fruit set and quality of self-fertile sweet cherries as affected by chemical flower thinning

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