Biomass as a selection criterion for drought tolerance in wheat
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Dosyalar
Tarih
2016
Yazarlar
Dergi Başlığı
Dergi ISSN
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Yayıncı
Editura Ars Docendi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Biomass at early vegetative stage seems to be one of the promising characteristics useful for accelerating yield potential in wheat under the drought conditions. For this propose, landraces are considered as potential genetic resources for improving drought tolerance in wheat. A group of 90 drought tolerant wheat genotypes from Turkey, including 42 landraces, 30 registered cultivars and 18 breeding lines were tested in greenhouse under two moisture regimes, field capacity (FC) of 100 % (nonmoisture stress-NMS) and FC of 50 % (moisture stress-MS), respectively. Biomass was evaluated for genotypic responses to moisture regimes using seven drought tolerance indices (DTI): stress susceptibility index (SSI), mean biomass (MB), tolerance index (TOL), stress tolerance index (STI), geometric mean biomass (GMB), biomass index (BI) and biomass stability index (BSI). It was concluded that three DTIs, (MB, STI and GMP) could be used for selecting genotypes with high biomass and drought tolerant under the MS and NMS regimes, while one DTI (SSI) was suitable for detecting genotypes with high biomass under the MS regime. This study revealed that the majority of the landraces and registered cultivars, carrying landraces in their pedigrees, produced higher biomass than breeding lines under both moisture regimes. © 2016 University of Bucharest.
Açıklama
Anahtar Kelimeler
Biomass, Drought, Tolerance, Wheat
Kaynak
Romanian Biotechnological Letters
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
Cilt
21
Sayı
3
