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166393

Effect of Some Growth Regulators on Vegetative Growth, Fruit Set, Yield and Fruit Quality of "Anna" Apple Cultivar

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Last updated: 23 Jan 2023

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Abstract

This investigation was conducted during 2015 and 2016 seasons on "Anna"apple trees (Malus domestica, L.). The trees were 10 years old at the start of experiment budded on Malus rootstock and grown in sandy clay loam soil in private orchard located at El-Nubaria region, El-Bahaira Governorate. The experiment involved the following treatments:1) control (spraying with tap water), 2) 5 mg/l Sitofex (CPPU), 3) 10 mg/l CPPU, 4) 15 mg/l CPPU, 5) 25mg/l Naphthalene acetic acid (NAA), 6) 50 mg/l NAA, 7) 75 mg/l NAA, 8) 25 mg/l Benzyladenine (BA), 9) 50 mg/l BA, 10) 75 mg/l BA. All applications were applied twice at full bloom (80% flowering) and after two weeks from setting. Results revealed that 75 mg/l NAA, as well as, 75 mg/l BA treatments gave the highest values of shoot length, shoot thickness and total chlorophyll compared to all others treatments during both experimental studied. On the contrary, the control treatment has the lowest values during two seasons. Also, it was noticed applications that CPPU treatments led increased fruit set and decreased fruit drop percentages. Furthermore, data showed that, 5, 10 and 15 mg/l CPPU significantly increased yield/tree and yield weight/feddan, as compared with control. Moreover, increasing rates of foliar application at all growth regulators treatments increased acidity and vitamin C content in fruits, while, all treatments did not affect total sugars and anthocyanin contents. Also, foliar application of CPPU, NAA and BA treatments increased the starch content

Keywords

Apple, Anna, Plant growth regulators, CPPU, NAA, BA, Vegetative growth, yield, fruit quality

Authors

First Name

Mohamed

Last Name

Harhash

MiddleName

Mohamed

Affiliation

Plant Production Dept. Faculty of Agriculture (Saba Basha) Alexandria University

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First Name

Mahmoud

Last Name

Aly

MiddleName

Ahmed

Affiliation

Plant Production Dept. Faculty of Agriculture (Saba Basha) Alexandria University

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Orcid

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First Name

Nagwa

Last Name

Abdelmageed

MiddleName

Abouelmagd

Affiliation

Hort. Res. Institute, Agric. Res. Center, Giza Egypt.

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First Name

Hanan

Last Name

Azatoni

MiddleName

Omar

Affiliation

Plant Production Dept. Faculty of Agriculture (Saba Basha) Alexandria University

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Volume

22

Article Issue

1

Related Issue

23951

Issue Date

2017-03-01

Receive Date

2016-09-20

Publish Date

2017-03-31

Page Start

76

Page End

89

Print ISSN

1110-5585

Online ISSN

2785-9525

Link

https://jalexu.journals.ekb.eg/article_166393.html

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https://jalexu.journals.ekb.eg/service?article_code=166393

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5

Type

Research papers

Type Code

1,789

Publication Type

Journal

Publication Title

Journal of the Advances in Agricultural Researches

Publication Link

https://jalexu.journals.ekb.eg/

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Article

Created At

23 Jan 2023