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176384

EFFECT OF SOME AZOSPIRILLUM STRAINS AS A PARTIAL REPLACEMENT OF INORGANIC N FERTILIZERS ON YIELD AND QUALITY OF SUPERIOR GRAPEVINES

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Last updated: 04 Jan 2025

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Abstract

About 91 mutants were obtained from exposing Azospirillum brasilense to different concentrations of Acriflavine mutagen and different time exposure. Out of those three new N microbial strains namely Methionineless, Threonineless and Tyrosineless were tested on Superior grapevines after their showed highest growth on artificial media. Superior grapevines were supplied with these microbial strains at 5 to 20 ml/vine and three slow release fertilizers (Methylene urea, Sulphur coated urea and urea formaldehyde) at 25 to 75% as partial replacement of the fast release N fertilizer namely ammonium nitrate during 2015 and 2016 seasons. Supplying Superior grapevines with N through 50 to 75 % inorganic N + 25 to 50% slow release N fertilizers (Methylene urea, Sulphur coated urea and urea formaldehyde) + bacteria strains (Methionineless, Threonineless and Tyrosineless) at 5 to 10 ml/vine proved to be very effective in stimulating all growth traits, leaf pigments and nutrients , berry setting %, yield and quality of the berries relative to using N as 100 % mineral N or when mineral N was added at 25%. An obvious reduction was observed on both nitrate and nitrite in the juice, with reducing percentages of mineral N from 100 to 25% as well as increasing percentages of the three release N fertilizers from 25 to 75% and the three bacterial strains from 5 to 20 ml/vine. The best bacterial strains in this respect were Methionineless, Theronineless and Tyrosineless, in ascending order. The best slow release fertilizer was methylene urea followed by sulphur coated urea. Amending Superior grapevines with N as 50% inorganic N (ammonium nitrate) + 50%  slow release N fertilizer (methylene urea) + Tyrosineless at 10 ml/vine was responsible for promoting yield and fruit quality.

DOI

10.21608/mjppf.2017.176384

Keywords

Fast and slow release N fertilizers, bacterial strains, Growth, yield, berries quality, Superior grapevines

Authors

First Name

F. F.

Last Name

Ahmed

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Affiliation

Hort. Dept., Fac. of Agric., Minia Univ., Egypt.

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First Name

O. F.

Last Name

Dakhly

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Affiliation

Genetics. Dept., Fac. of Agric., Minia Univ., Egypt.

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First Name

M.A.M.

Last Name

Abada

MiddleName

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Affiliation

Viticulture Res. Dept. Hort. Res. Inst. ARC, Giza, Egypt.

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Orcid

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First Name

M. Kh.

Last Name

Uwakiem

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-

Affiliation

Viticulture Res. Dept. Hort. Res. Inst. ARC, Giza, Egypt.

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Volume

2

Article Issue

6

Related Issue

25560

Issue Date

2017-12-01

Receive Date

2021-06-08

Publish Date

2017-12-01

Page Start

495

Page End

514

Print ISSN

2357-0830

Online ISSN

2735-346X

Article File

MJPPF_Volume 2_Issue 6_Pages 495-514.pdf

PDF . 552.4kB

Link

https://mjppf.journals.ekb.eg/article_176384.html

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https://mjppf.journals.ekb.eg/service?article_code=176384

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original papers

Type Code

1,393

Publication Type

Journal

Publication Title

Menoufia Journal of Plant Production

Publication Link

https://mjppf.journals.ekb.eg/

MainTitle

EFFECT OF SOME AZOSPIRILLUM STRAINS AS A PARTIAL REPLACEMENT OF INORGANIC N FERTILIZERS ON YIELD AND QUALITY OF SUPERIOR GRAPEVINES

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Article

Created At

23 Jan 2023