Garcia, A, Senadhira, D and Flowers, TJ (1995) The effects of selection for sodium-transport and selection for agronomic characteristics upon salt resistance in rice (Oryza sativa). Theoretical and Applied Genetics., 90 (7-8). 1106 - 1111 . ISSN 0040-5752
Abstract
A multiple cross was constructed with the aim of combining component traits for the complex salinity resistance character. The aim was to combine donors for physiological traits with the agronomically desirable semidwarf/intermediate plant type and with the overall salinity resistance of the traditional tall land races. We report a study of selection strategies in the resulting breeding population. The effects of early selection for agronomic traits and early selection for low sodium transport were compared with a control population in which minimal selection was practised. Conventional selection for agronomic characters at early generations selected against low sodium-transporting (and thus potentially salt-tolerant) genotypes. In contrast, mild early selection for low sodium transport enriched the population in potentially salt-resistant genotypes but did not select against agronomic (semi-dwarf/intermediate) genotypes. It is concluded that selection for agronomic traits should be made after selection for salt resistance and, ideally, should be delayed until the population has reached near-homozygosity.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Biological Sciences (Leeds) > Institute of Integrative and Comparative Biology (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 13 May 2013 10:01 |
Last Modified: | 16 Sep 2016 14:30 |
Published Version: | http://dx.doi.org/10.1007/BF00222929 |
Status: | Published |
Publisher: | Springer Verlag |
Identification Number: | 10.1007/BF00222929 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:75478 |