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57266

ACTIVITY OF Azotobacter AND Azospirillum IN THE RHIZOSPHERE OF ONION PLANT

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Last updated: 24 Dec 2024

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Abstract

This study was carried out to evaluate the influence of inoculation with nitrogen fixing bacteria (Azotobacter and Azospirillum) that were isolated from onion rhizosphere. The isolates were applied in field experiment to investigate the effect of inoculation with Azotobacter and Azospirillum, on Nitrogenase activity .  Isolation and enumeration of Azotobacter and Azospirillum from the soil of onion plants were studied and determination of the enzymatic activities of nitrogen fixing bacteria (nitrogenase) that were isolated from  the soil of onion plant during the growing periods at 0, 30, 60, 90, 120 and 150 days after sowing and selected active isolate of Azotobacter and Azospirillum. The obtained results revealed increases in Azotobacter and Azospirillum numbers as well as nitrogenase activity in rhizosphere onion regions. Also these activities reflect on onion plant productivity. This study recommended the application of Azotobacter and Azospirillum as inoculants in onion plant productivity.

DOI

10.21608/jacb.2011.57266

Keywords

Isolation Azotobacter, Azospirillum, Nitrogenase activity

Authors

First Name

A.H.H.

Last Name

Mahmoud

MiddleName

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Affiliation

Fac. Agric., Al-Azhar Univ., Cairo, Egypt.

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First Name

M. B. O.

Last Name

El-Kotkat

MiddleName

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Affiliation

Fac. Agric., Al-Azhar Univ., Cairo, Egypt.

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First Name

M. N. A.

Last Name

Omar

MiddleName

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Affiliation

Soil and Water Research Institute, ARC.

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First Name

G. A.

Last Name

Mostafa

MiddleName

-

Affiliation

Soil and Water Research Institute, ARC.

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Volume

2

Article Issue

10

Related Issue

8699

Issue Date

2011-10-01

Receive Date

2011-10-20

Publish Date

2011-10-01

Page Start

229

Page End

238

Print ISSN

2090-3626

Online ISSN

2090-3707

Article File

JACB_Volume 2_Issue 10_Pages 229-238.pdf

PDF . 410.6kB

Link

https://jacb.journals.ekb.eg/article_57266.html

Detail API

https://jacb.journals.ekb.eg/service?article_code=57266

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4

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Original Article

Type Code

883

Publication Type

Journal

Publication Title

Journal of Agricultural Chemistry and Biotechnology

Publication Link

https://jacb.journals.ekb.eg/

MainTitle

ACTIVITY OF Azotobacter AND Azospirillum IN THE RHIZOSPHERE OF ONION PLANT

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Article

Created At

22 Jan 2023