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48569

REDUCING CRACKING AND ENHANCING COLORATION AND QUALITY OF WONDERFUL POMEGRANATES CULTIVAR BY SAFE TREATMENTS

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Last updated: 04 Jan 2025

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Abstract

Pomegranates fruit cracking and poor coloration of peel and aril are the main problems facing the expansion of its cultivation especially under arid condition in the desert. This study was conducted during the two successive seasons 2014 and 2015 on "Wonderful" pomegranates (Punica granatum L.). The trees were grown under drip irrigation system in a private orchard at Nubaria region, Beheira Governorate, Egypt. The trees were treated twice at weekly interval by using a hand sprayer to the run off point at the marble size withsome mineral nutrients to reduce fruit cracking. The treatments included: water spray (as the control), calcium borate at 100 ppm, calcium borate at 200 ppm, zinc chelated with EDTA at 100 ppm, zinc chelated with EDTA at 200 ppm and finally calcium nitrate at 1% (W/V). Moreover, to enhance coloration of pomegranates peel and aril, at maturity the trees were treated with the control (water spray), ProTone (ABA 1%) at 100 ppm, ProTone at 100 ppm plus glycerol at 1% (V/V), ProTone at 100 ppm plus potassium sulphate at 1% (W/V), ProTone at 100 ppm plus potassium sulphate at 1% and glycerol at 1% (V/V), glycerol at 1% (V/V) and finally potassium sulphate at 1% (W/V). The non-ionic surfactant Top film at 0.05% (V/V) was added to all treatments. The results proved that calcium borate at 200 ppm treatment was more effective on reducing cracking and sun scald of pomegranate fruits. In addition, the results revealed that the formulation containing ProTone plus potassium sulphate and glycerol had a consistent effect on increasing anthocyanin content in the peel, when compared with the control or with ProTone alone. Moreover, anthocyanin content of the arils was significantly increased by application ProTone along with glycerol or ProTone plus potassium sulphate and glycerol in both seasons. Meanwhile, electrolyte leakage of the aril was similar for most applications. There was also a significant increase in total sugars by various ProTone-containing formulations relative to the control in the juice. Thus, this study recommended applying ProTone in a formulation containing potassium sulphate and glycerol in order to enhance coloration and quality of "Wonderful" pomegranates in a consistent manner under field conditions.

DOI

10.21608/zjar.2018.48569

Keywords

Pomegranates, wonderful, Cracking, coloration, Anthocyanin, ProTone, glycerol, potassium sulphate, zinc, Boron

Authors

First Name

Karim

Last Name

Farag

MiddleName

M.

Affiliation

Hort. Dept. (Pomol.), Fac. Agric., Damanhour Univ., P.O. Box 22516, Damamhour, Egypt.

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City

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Orcid

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First Name

Neven

Last Name

Nagy

MiddleName

M.N.

Affiliation

Hort. Dept. (Pomol.), Fac. Agric., Damanhour Univ., P.O. Box 22516, Damamhour, Egypt.

Email

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City

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Orcid

-

First Name

M.

Last Name

ElSheikh

MiddleName

H.

Affiliation

Pl. Prod. Dept., Arid Lands Cultivation Res. Inst., City of Sci. Res. and Technol. Applications, Alex, Egypt

Email

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City

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Orcid

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First Name

H.

Last Name

Abada

MiddleName

S.

Affiliation

Pl. Prod. Dept., Arid Lands Cultivation Res. Inst., City of Sci. Res. and Technol. Applications, Alex, Egypt

Email

heshamabada14@gmail.com

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Orcid

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Volume

45

Article Issue

4

Related Issue

7553

Issue Date

2018-07-01

Receive Date

2018-04-15

Publish Date

2018-07-30

Page Start

1,245

Page End

1,256

Print ISSN

1110-0338

Link

https://zjar.journals.ekb.eg/article_48569.html

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https://zjar.journals.ekb.eg/service?article_code=48569

Order

4

Type

Original Article

Type Code

842

Publication Type

Journal

Publication Title

Zagazig Journal of Agricultural Research

Publication Link

https://zjar.journals.ekb.eg/

MainTitle

REDUCING CRACKING AND ENHANCING COLORATION AND QUALITY OF WONDERFUL POMEGRANATES CULTIVAR BY SAFE TREATMENTS

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Article

Created At

22 Jan 2023