SUMMER-PRUNING AND PREHARVEST CALCIUM CHLORIDE SPRAYS AFFECT STORABILITY IN KIWIFRUIT CV. HAYWARD

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NAZARI Z.; HEMMATI KH.; RABIEI V.; ALIZADEH M.; KHAZAYI POL Y.GH.

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Journal: Plant Productions Year:2016 | Volume:39 | Issue:3 Page(s): 77-90

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Title

SUMMER-PRUNING AND PREHARVEST CALCIUM CHLORIDE SPRAYS AFFECT STORABILITY IN KIWIFRUIT CV. HAYWARD

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Keywords

CALCIUM CHLORIDEQ2

SUMMER PRUNINGQ1

KIWIFRUITQ2

STORAGEQ2

Abstract

Background and objectives: KIWIFRUIT is a good source of natural antioxidant substances, in particular vitamin C. The studies on KIWIFRUIT post harvest handling and storability would be helpful in marketability of high quality fruits and indeed it would be beneficial to our country's economy. In order to examine the effects of SUMMER PRUNING combined with CALCIUM CHLORIDE spray and duration of STORAGE on some quality features of KIWIFRUIT, the present research was undertaken as a complete block design in factorial arrangement with four replications.Materials and methods: The project was conducted during 2008-9 in a commercial orchard in Chalos, Iran. The CaCl2 was applied in four concentrations (0, 0.5, 1.0 and 1.5%) and pruning was carried out in four levels including no pruning, leaving 2, 4, 8 leaves after the last fruit. STORAGE period included four levels between two to six months.Result: It was found that, SUMMER PRUNING could increase calcium content of pulp. The total soluble solids decreased by pruning treatments but no significant changes were recorded for other quantitative traits. CALCIUM CHLORIDE applications significantly enhanced calcium content of pulp section (p<0.001). Furthermore, the interaction of CALCIUM CHLORIDE and time may significantly influence firmness, vitamin C content, pH, total acidity and total soluble solids. Maximum total acidity (1.118 g/100 ml), vitamin C content (60.111 mg/100 ml) was observed following spraying 1% CaCl2. Also, the lowest pH (3.445) and total soluble solids (12.7%) and maximum firmness (1.475) were recorded following application of 1.5% CaCl2, six months after STORAGE.Discussions: The results showed that the treatments had a significant effect on some traits and SUMMER PRUNING improves fruit calcium's. Absolute increasing on fruit calcium density means sprayed calcium can penetrate in fruit epiderm and it can be because of weakness in cell membrane during development that can simplify calcium penetration. Also, SUMMER PRUNING can increase fruit quality and improving antioxidant system and vitamin C by effect on light and air circulate in tree canopy and can increase calcium density in fruit texture by enhancing transpiration in fruits, because cutting the end part of developing shoots make reduction in competition between element absorption especially calcium element and make it flowed to set fruit.

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APA: Copy

NAZARI, Z., HEMMATI, KH., RABIEI, V., ALIZADEH, M., & KHAZAYI POL, Y.GH.. (2016). SUMMER-PRUNING AND PREHARVEST CALCIUM CHLORIDE SPRAYS AFFECT STORABILITY IN KIWIFRUIT CV. HAYWARD. THE PLANT PRODUCTION (SCIENTIFIC JOURNAL OF AGRICULTURE), 39(3), 77-90. SID. https://sid.ir/paper/165185/en

Vancouver: Copy

NAZARI Z., HEMMATI KH., RABIEI V., ALIZADEH M., KHAZAYI POL Y.GH.. SUMMER-PRUNING AND PREHARVEST CALCIUM CHLORIDE SPRAYS AFFECT STORABILITY IN KIWIFRUIT CV. HAYWARD. THE PLANT PRODUCTION (SCIENTIFIC JOURNAL OF AGRICULTURE)[Internet]. 2016;39(3):77-90. Available from: https://sid.ir/paper/165185/en

IEEE: Copy

Z. NAZARI, KH. HEMMATI, V. RABIEI, M. ALIZADEH, and Y.GH. KHAZAYI POL, “SUMMER-PRUNING AND PREHARVEST CALCIUM CHLORIDE SPRAYS AFFECT STORABILITY IN KIWIFRUIT CV. HAYWARD,” THE PLANT PRODUCTION (SCIENTIFIC JOURNAL OF AGRICULTURE), vol. 39, no. 3, pp. 77–90, 2016, [Online]. Available: https://sid.ir/paper/165185/en

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