INFLUENCE OF PREHARVEST SPRAYS OF A MIXTURE OF CALCIUM FORMATE, CALCIUM ACETATE, CALCIUM CHLORIDE AND CALCIUM NITRATE ON QUALITY AND ‘JONAGOLD’ APPLE STORABILITY
PBN-AR
Instytucja
Instytut Ogrodnictwa
Informacje podstawowe
Główny język publikacji
en
Czasopismo
JOURNAL OF PLANT NUTRITION
ISSN
0190-4167
EISSN
Wydawca
TAYLOR & FRANCIS INC
DOI
URL
Rok publikacji
2013
Numer zeszytu
Strony od-do
2023-2034
Numer tomu
36
Identyfikator DOI
Liczba arkuszy
Autorzy
(liczba autorów: 2)
Słowa kluczowe
en
apple trees
preharvest sprays of calcium
Open access
Tryb otwartego dostępu
Inne
Wersja tekstu w otwartym dostępie
Wersja opublikowana
Licencja otwartego dostępu
Inna
Czas opublikowania w otwartym dostępie
Po publikacji
Ilość miesięcy od publikacji
0
Data udostępnienia w sposób otwarty
Streszczenia
Język
en
Treść
The aim of the study was to examine effect of preharvest sprays of a mixture of calcium (Ca) formate, Ca-acetate, Ca-chloride (CaCl2) and Ca-nitrate [Ca(NO3)2] on quality and apple storability. The experiment was conducted during 2008–2009 at the Experimental Station of the Research Institute of Horticulture in Skierniewice, Poland, on mature ‘Jonagold’ apple trees/M.26, planted at a moderate density on a coarse-textured soil with low status of organic matter and abundant in exchangeable Ca. Apple trees were sprayed with Ca, 7 times per season, at 2-week intervals, starting 3 weeks after blooming. In the spray treatments a mixture of Ca-formate, Ca-acetate, CaCl2 and Ca(NO3)2 (as Insol Wap fertilizer), CaCl2 or Ca(NO3)2 were used at rates of 7.3 kg Ca, 11.8 kg Ca, and 9.9 kg Ca ha−1 per season, respectively. The trees sprayed with water were treated as the control. The results showed that Ca sprays caused no leaf and fruit injury. Calcium spray measures did not affect yield, mean fruit weight, and soluble solids concentration (SSC), titratable acidity and starch index of fruit at harvest. However, at harvest apples sprayed with Ca contained more this nutrient and were firmer than those of the control plots. After storage apples sprayed with Ca had more acids, and were firmer and less liable to bitter pit than the control fruit. Calcium sprays did not affect SSC of fruit after storage but reduced postharvest decay of fruit caused by Peziculla spp. and Penicillium expansum fungi. Apples sprayed with Insol Wap material were the least affected by the above pathogens. It is concluded that in apple orchards preharvest sprays of a mixture of Ca-formate, Ca-acetate, CaCl2 and Ca(NO3)2, containing 10% Ca (w/w) with ca. 50% in an organic form, can be the alternative to sprays of CaCl2 or Ca(NO3)2.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
593847
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