Journal of Food, Agriculture and Environment

Vol 7, Issue 2,2009
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Evaluation of salt tolerance in common bean genotypes by ion regulation and searching for screening parameters


H. Yildiz Dasgan *, Sibel Koc

Recieved Date: 2009-01-18, Accepted Date: 2009-04-08


The objectives of this work were (1) to screen large collection of bean genotypes for salinity responses and (2) to identify the best traits for screening the bean germplasm in tolerance to salt stress. Sixty-four bean genotypes were subjected to 125 mM NaCl. Plants were grown in hydroponic growing medium in greenhouse. The screening was carried out at early growing stage (25 days old plant). Ion regulation mechanisms were studied to identify the selection traits which would facilitate fast, effective and reliable screening for salinity tolerance. The genotypes tested showed a wide range of variability in tolerance to NaCl treatment. They were classified as 5 genotypes being tolerant, 43 mild tolerant and 16 being sensitive. Among the traits which were tested shoot Na concentration and shoot Na/K and Na/Ca ratios can be reliable indicators for rapid selection of bean genotypes at young stage of plant growth. However, shoot Cl concentration was not associated with salt tolerance of bean plant. Shoot and root dry weights in tolerance to NaCl stress could be significant but in a lesser extent than Na concentration and Na related ratios with K and Ca.


NaCl stress, Phaseolus vulgaris L., germplasm, plant indicators, breeding, genotypic variation, Na/K, Na/Ca

Journal: Journal of Food, Agriculture and Environment
Year: 2009
Volume: 7
Issue: 2
Category: Agriculture
Pages: 363-372

Full text for Subscribers

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

Purchase this Article:   20 Purchase PDF Order Reprints for 15

Share this article :