eprintid: 22510
rev_number: 26
eprint_status: archive
userid: 24477
dir: disk0/00/02/25/10
datestamp: 2013-04-18 13:43:31
lastmod: 2013-04-24 09:12:30
status_changed: 2013-04-18 13:43:31
type: journalp
metadata_visibility: show
doclang: en
projects: 0other
projects: a-uni-wien-boku
projects: a-uni-wien-boku-ifoel
projects: at-uni-wien
projects: ir
refereed: yes
budget: 0
docurl: http://cbjournal.spii.ir/browse.php?cur=1&sid=1&slc_lang=en
publicfulltext: TRUE
creators_name: Moghaddam, Ali
creators_name: Vollmann, Johann
creators_name: Wanek, Wolfgang
creators_name: Ardakani, M. Reza
creators_name: Raza, Amir
creators_name: Pietsch, Gabriele
creators_name: Friedel, Juergen K.
title: Suitability of drought tolerance indices for selecting alfalfa (Medicago sativa L.) genotypes under organic farming in Austria

ispublished: pub
subjects: 1organics
subjects: 4plant
keywords: biological nitrogen fixation, Iranian ecotypes, shoot dry matter, stress intensity, total biomass yield
abstract: In eastern Austria, alfalfa is usually grown as a rainfed crop in crop rotations in organic farming systems, where year-to-year rainfall fluctuations cause different levels of drought stress. To identify the suitability of different alfalfa genotypes and drought tolerance indices, 18 contrasting alfalfa genotypes were evaluated under irrigated and rainfed conditions at the research station of the University of Natural Resources and Life Sciences (BOKU), Vienna, Austria, during 2006-08. The first study year (2006) was considered as the establishment year. Five drought tolerance selection indices were estimated based on shoot dry matter, total biomass yield and biological nitrogen fixation (BNF) data. The correlation between irrigated and rainfed performances increased (from r=-0.17 to 0.56) with decreasing stress intensity from the first to the second year. Genotypes Sitel, Plato ZS, Vlasta and NS-Banat were the best genotypes based on their performance under both conditions. Drought tolerance selection indices TOL and SSI showed high correlations (r = 0.32 to 0.81) only with rainfed performance, and SSI was the index that best identified genotypes with high yield potential under rainfed conditions. Indices STI and GMP were the ones that best identified genotypes with high performance under both conditions.
date: 2012
date_type: published
publication: Crop Breeding Journal
volume: 2
number: 2
full_text_status: public
pagerange: 79-89
issn: 2008-868X
contact_email: mreza.ardakani@gmail.com
voa3r_agrovoc_lang: en
fp7_project: no
access_rights: info:eu-repo/semantics/openAccess
citation:    Moghaddam, Ali; Vollmann, Johann; Wanek, Wolfgang; Ardakani, M. Reza; Raza, Amir; Pietsch, Gabriele and Friedel, Juergen K.   (2012) Suitability of drought tolerance indices for selecting alfalfa (Medicago sativa L.) genotypes under organic farming in Austria.   Crop Breeding Journal, 2 (2), pp. 79-89.        
document_url: /id/eprint/22510/7/22510.pdf