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Received: 2012-01-25

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Journal of Zhejiang University SCIENCE B 2012 Vol.13 No.7 P.533-544


Comprehensive screening and selection of okra (Abelmoschus esculentus) germplasm for salinity tolerance at the seedling stage and during plant ontogeny

Author(s):  Ikram-ul-Haq, Asif Ali Khan, Iqrar Ahmad Khan, Muhammad Abubakkar Azmat

Affiliation(s):  Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan; more

Corresponding email(s):   asifpbg@uaf.edu.pk, knnike@yahoo.com

Key Words:  Salinity tolerance, Okra, Growth stage, Genetic variation, Mechanism, Potassium to sodium ion ratio (K+/Na+)

Ikram-ul-Haq , Asif Ali Khan, Iqrar Ahmad Khan, Muhammad Abubakkar Azmat. Comprehensive screening and selection of okra (Abelmoschus esculentus) germplasm for salinity tolerance at the seedling stage and during plant ontogeny[J]. Journal of Zhejiang University Science B, 2012, 13(7): 533-544.

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author="Ikram-ul-Haq , Asif Ali Khan, Iqrar Ahmad Khan, Muhammad Abubakkar Azmat",
journal="Journal of Zhejiang University Science B",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Comprehensive screening and selection of okra (Abelmoschus esculentus) germplasm for salinity tolerance at the seedling stage and during plant ontogeny
%A Ikram-ul-Haq
%A Asif Ali Khan
%A Iqrar Ahmad Khan
%A Muhammad Abubakkar Azmat
%J Journal of Zhejiang University SCIENCE B
%V 13
%N 7
%P 533-544
%@ 1673-1581
%D 2012
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1200027

T1 - Comprehensive screening and selection of okra (Abelmoschus esculentus) germplasm for salinity tolerance at the seedling stage and during plant ontogeny
A1 - Ikram-ul-Haq
A1 - Asif Ali Khan
A1 - Iqrar Ahmad Khan
A1 - Muhammad Abubakkar Azmat
J0 - Journal of Zhejiang University Science B
VL - 13
IS - 7
SP - 533
EP - 544
%@ 1673-1581
Y1 - 2012
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B1200027

The okra germplasm was screened for salinity tolerance at the seedling stage and during plant ontogeny. Substantial variation existed in okra for salinity tolerance at the seedling stage. An 80 mmol/L NaCl concentration was suitable for discriminating tolerant and non-tolerant okra genotypes. The pooled ranking of the genotypes, based on individual rankings for each trait (root and shoot length, germination percentage, and relative Na+ and K+) in individual NaCl concentrations, was effective for selecting tolerant genotypes. Genotypes selected at the seedling stage maintained their tolerance to NaCl during plant ontogeny, suggesting that screening of the germplasm entries and advanced breeding materials for salt tolerance at the seedling stage is effective. Among 39 okra genotypes, five were identified as the most tolerant genotypes and showed potential for use in breeding programs that focus on the development of salt-tolerant, high-yield okra cultivars.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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2012-05-10 20:25:17

Very nice paper on salinity response....the scale provided in it is really impressive...thumbs up!!!

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