Effect of Calcium chloride and 1-MCP (Smartfresh™) postharvest treatment on ‘Golden Delicious’ apple cold storage physiological disorders

Control efficacy of Ca‐containing foliar fertilizers on bitter pit in bagged ‘Fuji’ apple and effects on the Ca and N contents of apple fruits and leaves

“…The results in our study indicated that the tested Ca fertilizers containing CaCl 2 , Ca(NO 3 ) 2 and especially Ca(HCOO) 2 could potentially help to reduce BP incidence in bagged apples and improve the mineral nutrient content in bagged apple fruits. Our results also confirmed the positive effects of Ca‐containing foliar fertilizers on reducing the BP incidence as well as improving the mineral nutrient contents in bagged apple fruits, as described previously …”

“…Preharvest foliar Ca applications, such as Ca(NO 3 ) 2 , CaCO 3 , CaCl 2 , Ca(COOCH 3 ) 2 , and calcium propionate (Ca(C 2 H 5 COO) 2 ), to increase the Ca content of apples and therefore reduce BP incidence have become standard practice, although there are some reports about Ca applications prior to storage or during the postharvest storage period . However, inconsistent results are often obtained after applying treatments because of the varying responses of apple cultivars to foliar Ca sprays .…”

“…In addition to Ca 2+ , other nutrients, including magnesium (Mg 2+ ), potassium (K + ), boron (B) and nitrogen (N), may play an important role in the development of BP in apple fruits, and commercial apple growers frequently rely on the (K + + Mg 2+ )/Ca 2+ and N/Ca 2+ ratios as guides both for predicting fruit's susceptibility to BP and for deciding the application time of Ca fertilizers . In general, high Ca and B content is related to a low incidence of BP, especially for moderate and severe BP, whereas high incidence of BP is positively associated with N, K and Mg content . Moreover, compared with lower fruit Ca 2+ levels alone, the combination of higher N levels and lower Ca 2+ levels in fruit tissue is usually more strongly correlated with fruit susceptibility to BP .…”

Evaluation of postharvest calcium treatment and biopreservation with Lactobacillus rhamnosus GG on the quality of fresh‐cut ‘Conference’ pears

“…However, Kou et al 12 showed that the postharvest application of 2% CaCl 2 increased the concentration of calcium in peeled 'Huangguan' pears after 8 months of storage. Similarly, Gago et al 10 reported that 'Golden Delicious' apples treated with CaCl 2 (1.5% w/v) and 1-MCP showed higher calcium concentrations than the control fruit after 180 d of storage. Moreover, in the studies conducted by Manganaris et al, 50,51 peaches and nectarines treated with three different calcium solutions (chloride, lactate or propionate) showed a higher calcium content than the control after 28 and 42 d of cold storage, respectively.…”

Effects of 1-MCP and Pre-harvest Fruit Bagging Treatments on Cold Storability of the Red-fleshed Apple ‘Kurenainoyume’

“…CSPD of 'Kurenainoyume' is a kind of sunburn, although the symptoms of CSPD are similar to that of cork spot and bitter pit (Matsumoto et al, 2018b). The bitter pit symptom of 'Honeycrisp' and 'Golden Delicious' apples was reported to develop during cold storage (Gago et al, 2016;Rosenberger et al, 2004). However, there is no information about the changes in CSPD symptoms during cold storage.…”