caa a22 4500 445841605 CHVBK 20180317145346.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10725-011-9584-z doi (NATIONALLICENCE)springer-10.1007/s10725-011-9584-z Pre-harvest foliar application of Prohexadione-Ca and gibberellins modify canopy source-sink relations and improve quality and shelf-life of ‘Bing' sweet cherry [Elektronische Daten] [Caixi Zhang, Matthew Whiting] This research evaluated the potential of gibberellins (GA), and Prohexadione-Ca (PCa) to affect sweet cherry (Prunus avium) fruit size and quality. The results demonstrate the ability of ostensibly counter-acting plant growth regulators to significantly improve sweet cherry cv ‘Bing' fruit size, fruit quality and postharvest characteristics compared to the current commercial application of GA3 alone. In 2008, we found that the combination of GA3 or GA4/7 (30mgl−1) with PCa (150mgl−1) applied to entire 3-year-old limbs 30days after anthesis increased fruit size and improved fruit quality in ‘Bing'. In 2009, we investigated the effect of application timing in larger-scale field trials, comparing treatments made at 30 or 37days after anthesis, on fruit quality, storability and sensory attributes after storage. Treatment with PCa+GA3 or PCa+GA4/7 delayed fruit maturity by about 7days compared to the untreated control. Both the first and second applications of PCa+GA4/7 resulted in 35-40% fruit being ≥10g, compared with only 20% in the control. PCa+GA3 treatment also showed greater potential for improving fruit storability by maintaining fruit firmness, sweetness, and consumer appeal than PCa+GA4/7. PCa alone or in combination with GAs inhibited current shoot growth and delayed fruit coloring development. After 30days of 4°C storage, fewer than 5% fruit from untreated trees were rated as healthy and marketable, compared to 50 and 30% fruit from PCa+GA3 treatment applied at 30 or 37days after anthesis, respectively. In conclusion, preharvest foliar application of PCa+GA3 at the onset of Stage II of fruit development shows potential to affect canopy source-sink relations and improved quality and shelf life of ‘Bing' sweet cherries. Springer Science+Business Media B.V., 2011 Plant growth regulators nationallicence Gibberellins nationallicence Prohexadione-Ca (PCa) nationallicence Fruit size nationallicence Postharvest nationallicence Sensory quality nationallicence Prunus avium nationallicence Zhang Caixi Irrigated Agriculture Research and Extension Center, Washington State University, 99350, Prosser, WA, USA aut Whiting Matthew Irrigated Agriculture Research and Extension Center, Washington State University, 99350, Prosser, WA, USA aut Plant Growth Regulation Springer Netherlands 65/1(2011-09-01), 145-156 0167-6903 65:1<145 2011 65 10725 https://doi.org/10.1007/s10725-011-9584-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10725-011-9584-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Caixi Irrigated Agriculture Research and Extension Center, Washington State University, 99350, Prosser, WA, USA aut NATIONALLICENCE 700 1- Whiting Matthew Irrigated Agriculture Research and Extension Center, Washington State University, 99350, Prosser, WA, USA aut NATIONALLICENCE 773 0- Plant Growth Regulation Springer Netherlands 65/1(2011-09-01), 145-156 0167-6903 65:1<145 2011 65 10725 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer