A comparison of procedures for evaluating and selecting alfalfa landrace germplasm for tolerance to salinity

Author:

Pecetti Luciano1ORCID,Tlahig Samir2ORCID,Confalonieri Massimo1ORCID,Cornacchione Mónica V.3ORCID,Hayek Taoufik2ORCID,Angueira Salvador Prieto34ORCID,Annicchiarico Paolo1ORCID

Affiliation:

1. Council for Agricultural Research and Economics (CREA), Research Center for Animal Production and Aquaculture Lodi Italy

2. Dryland Farming and Oasis Cropping Laboratory, Arid Regions Institute (IRA) Médenine Tunisia

3. Instituto Nacional de Tecnologia Agropecuaria (INTA), Estación Experimental Santiago del Estero Santiago del Estero Argentina

4. Facultad de Agronomía y Agroindustria Universidad Nacional de Santiago del Estero Santiago del Estero Argentina

Abstract

AbstractIn arid and semiarid regions, salinity may affect alfalfa (Medicago sativa) productivity and survival due to either cultivation on salt‐affected soils or the use of salinized irrigation water. Exploiting germplasm evolved under salt‐stress conditions offers opportunities for crop tolerance improvement. In the first phase of the current study, four reportedly salt‐tolerant landraces originated from stress‐prone areas of West Asia or North Africa and two reference commercial cultivars underwent three evaluation trials according to different methods, namely, seed germination in saline water, in vitro testing of young plants, and greenhouse evaluation of adult plants in Cone‐tainers. Experimental populations obtained by intercrossing landrace genotypes selected according to each evaluation method were subsequently evaluated under stressful field conditions in two regions featuring different salt stress type, namely, southern Tunisia (irrigation with saline water) and northwestern Argentina (rainfed cropping in saline soil). Landrace ranking for salt tolerance differed somewhat depending on the evaluation method, and the proportion of selected plants per landrace depended accordingly on the method. In each field experiment, there were two evaluation phases, and the second phase corresponded in both cases to harsher conditions. The in vitro evaluation and selection resulted in potentially more useful selected germplasm than the other evaluation methods. The field experiments highlighted the large specific adaptation effects that affected the response of salt‐tolerant germplasm across the two regions.

Publisher

Wiley

Reference54 articles.

1. Caractérisation phytoécologique de la zone humide Chott El Beida (Sétif, Algérie);Aliat T.;Bulletin de l'Institut Scientifique, Rabat,2013

2. Between and within cultivar variability in salt tolerance in lucerne, (Medicago sativa L.)

3. Response of Alfalfa Cultivars to Salinity during Germination and Post‐Germination Growth

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3