Fish Oil Plus Lime Sulfur Shows Potential as a Sweet Cherry Postbloom Thinning Agent

Lenahan, Olivia M.; Whiting, Matthew

doi:10.21273/hortsci.41.3.860

Cited by 11 publications

(16 citation statements)

References 13 publications

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“…We reported previously that NCER of leaves treated with FOLS 14 d after FB was reduced by 26% within 24 h of treatment and by 19% overall, a reduction that took leaves 7 d to recover from (Lenahan and Whiting, 2006). In contrast, leaves treated during bloom exhibited a mean NCER reduction of 33% over a 17-d recovery period.…”

Section: Resultsmentioning

confidence: 85%

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Planting Date and Cultivar Affect Melon Quality and Productivity

Dufault¹,

Korkmaz²,

Ward³

et al. 2006

HortSci

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Extending the production season of melons (Cucumis melo L.) by using very early and late planting dates outside the range that is commercially recommended will increase the likelihood of developing a stronger melon industry in South Carolina. The objective of this study was to determine if early (February) transplanted melons or later (June through July) planting dates are effective in extending the production season of acceptable yields with good internal quality of the melon cultivars: Athena, Eclipse, and Sugar Bowl and Tesoro Dulce (a honeydew melon). Melons were transplanted in Charleston, S.C., in 1998, 1999, and 2000 on 12 and 26 Feb., 12 and 26 Mar., 9 and 23 Apr., 7 and 21 May, 4 and 18 June, and 2 July and required 130, 113, 105, 88, 79, 70, 64, 60, 60, 59, and 56 days from field transplanting to reach mean melon harvest date, respectively. Stands were reduced 67%, 41%, and 22% in the 12 and 26 Feb. and 12 Mar. planting dates, respectively, in contrast to the 26 Mar. planting date but ≤15% in all other planting dates. Planting in February had no earliness advantage because the 12 and 26 Feb. and 12 and 26 Mar. planting dates, all reached mean melon harvest from 19 to 23 June. Comparing the marketable number of melons produced per plot (averaged over cultivar) of the standard planting dates of 12 and 26 Mar. indicated decreases of 21%, 32%, 36%, 36%, 57%, 57%, and 54%, respectively with the planting dates of 9 and 23 Apr., 7 and 21 May, 4 and 18 June, and 2 July. The most productive cultivar of all was `Eclipse', which yielded significantly more melons per plot in all 11 planting dates followed by `Athena' (in 8 of 11 planting dates), `Tesoro Dulce' (7 of 11 planting dates), and `Sugar Bowl' (2 of 11 planting dates). In our study, any planting date with melon quality less than the USDA standard of “good internal quality” or better (Brix ≥9.0) was considered unacceptable because of potential market rejection. Therefore, the earliest recommended planting date with acceptable yield and “good internal quality” was 12 Mar. for all cultivars; the latest planting dates for `Athena', `Eclipse', `Tesoro Dulce', and `Sugar Bowl' were 4 June, 18 June, 7 May, and 9 Apr., respectively. With these recommendations, the harvest season of melons lasted 40 days from 24 June to 3 Aug. for these four cultivars, which extended the production season an additional 2 weeks longer than the harvest date of last recommended 21 May planting date.

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Section: Resultsmentioning

confidence: 85%

“…This highlights the potential importance of evaluating fruit set before imposing any thinning strategy. To this end, we have recently evaluated the potential for thinning fruitlets postbloom with FOLS (Lenahan and Whiting, 2006).…”

Section: Yield and Fruit Qualitymentioning

confidence: 99%

Planting Date and Cultivar Affect Melon Quality and Productivity

Dufault¹,

Korkmaz²,

Ward³

et al. 2006

HortSci

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“…With a larger area of the leaves per fruit, the colour of the fruit was darker and the fruit itself matured earlier (Usenik, Orazem, and Stampar 2010). It is important to develop cultivation methods that will allow to obtain an acceptable yield while maintaining high quality of fruit [4,7,11,18].…”

Section: Introductionmentioning

confidence: 99%

“…It also reduces manual effort. Hand thinning of sweet and sour cherries is unprofitable due to labour intensity [18,32]. Compared to the pome species, more flowers must be left on the trees of stone species in order to obtain a profitable commercial yield of good quality.…”

Section: Introductionmentioning

confidence: 99%

“…The disadvantage of thinning flowers is the risk of yield loss if frosts and unfavourable conditions for pollination and fertilization occur after thinning. Chemicals, such as ammonium thiosulphate (ATS), urea, hydrogen cyanamide and other sulphur-based compounds [18,41,43,44] used in such conditions cause damage to the stigma, style, anther and pollen, which prevents pollination of damaged flowers ATS is used to thin apple and peach flowers and is consider to be ecologically sustainable. However, it can have phytotoxic effects on leaves and consequently reduce photosynthesis, which may affect the fruit size [43].…”

Section: Introductionmentioning

confidence: 99%

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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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