Evaluation of seven barley genotypes under water stress conditions
Laen...
Kuupäev
2023
Kättesaadav alates
Autorid
Vasilaki, C.
Katsileros, A.
Doulfi, D.
Karamanos, A.
Economou, G.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian University of Life Sciences
Abstrakt
The evaluation of seven barley genotypes under water stress conditions using drought
tolerance indices was investigated during two agronomical seasons in the experimental field of
Agricultural University of Athens in Greece. The experimental design was a split-plot layout in
four blocks. Four different levels of irrigation were implemented, with the method of escalated
distance from the source of water (drip irrigation line). The experimental plots were protected
from rain since the experiment was conducted under a rainout shelter. Measurements of water
potential index of the plants were conducted, as well as stomatal resistance and stomatal
resistance index of leaves, and grain yield of genotypes. A decrease in water potential index
(15–25%) and grain yield (35–54%) was observed in all genotypes as soil moisture decreased.
On the other hand, stomatal resistance and stomatal resistance index (26–69%) of leaves
increased. Grain yield had a strong relationship with the indices of water potential and stomatal
resistance of leaves. Grain yield of all genotypes is affected under water stress conditions, with
the six-rowed genotypes being more adaptive than the two-rowed ones. It can be concluded that
indices of water potential and stomatal resistance of leaves can be effectively used in the
evaluation of genotypes under water stress conditions.
Kirjeldus
Received: July 4th, 2022 ; Accepted: November 27th, 2022 ; Published: December 23rd, 2022 ; Correspondence: dimdoulfi@yahoo.gr
Märksõnad
drought tolerance, stomatal resistance index, water potential index, grain yield, articles