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Response of Washington Navel Orange Trees to Calcium Chloride Foliar Application

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Last updated: 01 Jan 2025

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Abstract

 
Thirteen-year-old Washington navel orange (Citrus sinensis L. Osbeck) trees grown in a private citrus orchard at Wady El-Mullak region, Abo-Hamad district, Sharkia Governorate were sprayed during 2012 and 2013 seasons with calcium chloride (CaCl2) at 0.5, 1.0 and 2.0 % and water as control treatment when the fruits reached pea size (5 mm in diameter). The experimental trees were sprayed 6 times at the first and mid of May, June, October months during both seasons to investigate their influence on fruit drop and fruit retention percentages, as well as yield and fruit quality.
Spraying CaCl
2 at 1.0 % gave the maximum fruit retention percentage, number of fruits and yield/ tree, but reduced June and pre-harvest fruit drop percentages. Fruits juice of trees sprayed with CaCl2 at 0.5 and 1.0 % contained the highest TSS and the lowest total acidity percentages and consequently the highest TSS/ acid ratio compared with those sprayed with 2.0 % CaCl2 and water (control). Moreover, calcium chloride spraying at 1.0 % was the optimum treatment for improving fruit quality and enhancing the yield/ tree.

DOI

10.21608/ejoh.2015.1283

Keywords

calcium chloride, Navel orange, Fruit drop (%), Fruit retention (%)

Volume

42

Article Issue

Issue 1 The 2nd International Conference on Horticultural Crops, 15-18 March ( ICHC- Egypt 2015)

Related Issue

260

Issue Date

2015-06-01

Receive Date

2014-09-14

Publish Date

2015-06-30

Page Start

169

Page End

179

Print ISSN

1110-0206

Online ISSN

2357-0903

Article File

EJOH_Volume 42_Issue Issue 1 The 2nd International Conference on Horticultural Crops, 15-18 March ( ICHC- Egypt 2015)_Pages 169-179.pdf

PDF . 436.4kB

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https://ejoh.journals.ekb.eg/article_1283.html

Detail API

https://ejoh.journals.ekb.eg/service?article_code=1283

Order

11

Type

Original Article

Type Code

137

Publication Type

Journal

Publication Title

Egyptian Journal of Horticulture

Publication Link

https://ejoh.journals.ekb.eg/

MainTitle

Response of Washington Navel Orange Trees to Calcium Chloride Foliar Application

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Article

Created At

22 Jan 2023