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52292

EVALUATION OF SOME FACTORS AFFECTING IN VITRO MICROPROPAGATION OF FEW SEEDED FRUIT GUAVA TREES

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Last updated: 04 Jan 2025

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Abstract

This study was carried out during the period from 2013 to 2016 in the Plant Tissue Culture Laboratory Hort. Dept., Fac. Agric., Zagazig University, Egypt to create a protocol for propagating few seeded fruit guava trees throughout the various stages of tissue culture technique. During the establishment stage, explants (nodal explants and shoot tips) were excised from 6- month- old seedlings grown in the green house. The excised explants were cultured in Murashige and Skoog (MS) medium supplemented with 1mg/l benzyl adenine (BA) combined with 100 mg/l polyvinylpyrrelidone (PVP). Results showed that nodal explants proved to be better than shoot tips concerning growth parameters. Different BA concentrations i.e. 0.0, 0.5, 1 or 2 mg/l proved the efficiency of 2mg/l BA for shoot proliferation from nodal explants, followed by 1mg/l BA. Inoculation nodal explants during different dates revealed that spring season (mid April) produced the best growth parameters. Obtained shoots about 1cm length from establishment stage were cultured in MS medium provided with BA or kinetin (Kin.), at different concentrations (0.0, 0.5, 1, 2, 4, or 6 mg/l). Results showed that BA recorded the highest multiplication rate compared with Kin., which produced one shoot, only, whereas 2mg/l BA gave the highest number of shoots/ explant (10.62 shoots/ explant).  Addition of sucrose at 20, 30 or 40 g/l to MS medium supported with 2mg/l BA enhanced the efficiency of 40 g/l sucrose concerning number of shoots/explant (12 shoots/explant). The combination of 2mg/l BA and different auxins (NAA, IAA or IBA) at low concentrations showed that 2 mg/l BA combined with 0.5 mg/l IBA gave the highest number of shoots/ explant (11.20 shoots/ explant). During rooting stage, using each of NAA, IBA or IAA at 0, 1, 2 or 4 mg/l in MS medium, resulted in shoot rooting. Although NAA resulted in more number of roots/ shoot, IBA at 1 or 2 mg/l was adequate for producing better rooting shoots for acclimatization stage. The obtained rooted plantlets could be successfully acclimatized in peat moss medium incorporated with sand at 1:2 (V/V), since it gave 100% survival.

DOI

10.21608/zjar.2017.52292

Keywords

micropropagation, In vitro culture, few seeded fruit guava trees, nodal explants, shoot tips, benzyl adenine (BA), kinetin (Kin.), sucrose%, auxins, IBA

Authors

First Name

Doaa

Last Name

Mahmoud

MiddleName

S.

Affiliation

Hort. Dept., Fac. Agric., Zagazig Univ., Egypt

Email

doa_sabry92@yahoo.com

City

-

Orcid

-

First Name

G.

Last Name

Sourial

MiddleName

F.

Affiliation

Hort. Dept., Fac. Agric., Zagazig Univ., Egypt

Email

-

City

-

Orcid

-

First Name

Atteyat

Last Name

Abd El-Aziz

MiddleName

S.

Affiliation

Hort. Dept., Fac. Agric., Zagazig Univ., Egypt

Email

-

City

-

Orcid

-

First Name

R.

Last Name

Al-Ashkar

MiddleName

A.

Affiliation

Hort. Dept., Fac. Agric., Zagazig Univ., Egypt

Email

-

City

-

Orcid

-

Volume

44

Article Issue

3

Related Issue

8028

Issue Date

2017-05-01

Receive Date

2017-03-16

Publish Date

2017-05-01

Page Start

931

Page End

944

Print ISSN

1110-0338

Link

https://zjar.journals.ekb.eg/article_52292.html

Detail API

https://zjar.journals.ekb.eg/service?article_code=52292

Order

7

Type

Original Article

Type Code

842

Publication Type

Journal

Publication Title

Zagazig Journal of Agricultural Research

Publication Link

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

MainTitle

EVALUATION OF SOME FACTORS AFFECTING IN VITRO MICROPROPAGATION OF FEW SEEDED FRUIT GUAVA TREES

Details

Type

Article

Created At

22 Jan 2023