Drought resistance indices for screening of potato (Solanum tuberosum L.) genotypes

Drought resistance indices for screening of potato (Solanum tuberosum L.) genotypes

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Main Authors: Beyene, Z.K., Mekbib, F., Abebe, T., Asfaw, A.
Format: Journal Article biblioteca
Language:English
Published: Turkish Science and Technology Publishing (TURSTEP) 2019
Subjects:stress, drought, potatoes, genotypes,
Online Access:https://hdl.handle.net/10568/103759
https://doi.org/10.24925/turjaf.v7i8.1118-1124.2226
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spelling dig-cgspace-10568-1037592023-08-25T21:52:02Z Drought resistance indices for screening of potato (Solanum tuberosum L.) genotypes Beyene, Z.K. Mekbib, F. Abebe, T. Asfaw, A. stress drought potatoes genotypes Open Access Journal In breeding for drought tolerance, availability of precise, cheap and easy to apply selection tool is critical. The aim of the present study was to identify potential screening tools that are useful for selection of drought tolerant genotypes in potato and select drought resistant potato genotypes. The study assessed sixty clones arranged in a 10×6 alpha lattice design with two replicates in a managed stress experiment. Two irrigation treatments were applied: fully watered non-stress and terminal drought, where the irrigation water supply to the crop was withheld after 50 % flowering to induce post-flowering stress. Stress indices were calculated based on tuber yield of genotypes in both stressed and non-stressed conditions. Identification of drought tolerant genotypes based on a single index was less informative as different indices identified different genotypes as drought tolerant. Hence, to determine the most desirable drought tolerant clones rank sum of indices, correlation, and bi-plot display of the principal component analysis was employed. The indices modified stress tolerance index based on non-stressed yield, Men productivity, Geometric mean productivity, Stress tolerance index, Harmonic mean, modified stress tolerance index based on stressed yield and Yield index exhibited strong association with both yield under stressed and non-stressed yield. These indices discriminated drought tolerant genotypes with higher tuber yielding potential both under stress and non-stress conditions. Genotypes CIP-398180.612, CIP-397069.5, and CIP-304371.67 were identified as drought tolerant. These genotypes could be potentially grown both under drought prone and potential environments and these selection attributes could help to develop climate resilient potato varieties. 2019 2019-09-26T10:17:39Z 2019-09-26T10:17:39Z Journal Article Beyene, Z.K., Mekbib, F., Abebe, T. & Asfaw, A. (2019). Drought resistance indices for screening of potato (Solanum tuberosum L.) genotypes. Turkish Journal of Agriculture-Food Science and Technology, 7(8), 1118-1124. 2148-127X https://hdl.handle.net/10568/103759 https://doi.org/10.24925/turjaf.v7i8.1118-1124.2226 BIOTECH & PLANT BREEDING en CC-BY-4.0 Open Access 1118-1124 application/pdf Turkish Science and Technology Publishing (TURSTEP) Turkish Journal of Agriculture - Food Science and Technology
institution CGIAR
collection DSpace
country Francia
countrycode FR
component Bibliográfico
access En linea
databasecode dig-cgspace
tag biblioteca
region Europa del Oeste
libraryname Biblioteca del CGIAR
language English
topic stress
drought
potatoes
genotypes
stress
drought
potatoes
genotypes
spellingShingle stress
drought
potatoes
genotypes
stress
drought
potatoes
genotypes
Beyene, Z.K.
Mekbib, F.
Abebe, T.
Asfaw, A.
Drought resistance indices for screening of potato (Solanum tuberosum L.) genotypes
description Open Access Journal
format Journal Article
topic_facet stress
drought
potatoes
genotypes
author Beyene, Z.K.
Mekbib, F.
Abebe, T.
Asfaw, A.
author_facet Beyene, Z.K.
Mekbib, F.
Abebe, T.
Asfaw, A.
author_sort Beyene, Z.K.
title Drought resistance indices for screening of potato (Solanum tuberosum L.) genotypes
title_short Drought resistance indices for screening of potato (Solanum tuberosum L.) genotypes
title_full Drought resistance indices for screening of potato (Solanum tuberosum L.) genotypes
title_fullStr Drought resistance indices for screening of potato (Solanum tuberosum L.) genotypes
title_full_unstemmed Drought resistance indices for screening of potato (Solanum tuberosum L.) genotypes
title_sort drought resistance indices for screening of potato (solanum tuberosum l.) genotypes
publisher Turkish Science and Technology Publishing (TURSTEP)
publishDate 2019
url https://hdl.handle.net/10568/103759
https://doi.org/10.24925/turjaf.v7i8.1118-1124.2226
work_keys_str_mv AT beyenezk droughtresistanceindicesforscreeningofpotatosolanumtuberosumlgenotypes
AT mekbibf droughtresistanceindicesforscreeningofpotatosolanumtuberosumlgenotypes
AT abebet droughtresistanceindicesforscreeningofpotatosolanumtuberosumlgenotypes
AT asfawa droughtresistanceindicesforscreeningofpotatosolanumtuberosumlgenotypes
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