Effects of Potassium Availability on Growth and Development of Barley Cultivars

Potassium deficiency is one of the major issues affecting crop production around the globe. Giving the high cost of potassium fertilizers and environmental concerns related to inappropriate fertilization practices, developing more potassium use efficient (KUE) varieties is critical for sustainable f...

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Autores principales:	Widad Al Azzawi, Muhammad Bilal Gill, Foad Fatehi, Meixue Zhou, Tina Acuña, Lana Shabala, Min Yu, Sergey Shabala
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	potassium use efficiency genotypic variability grain number QTL Agriculture S
Acceso en línea:	https://doaj.org/article/588e0c08694b42bdbdd52783988e0c84
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spelling	oai:doaj.org-article:588e0c08694b42bdbdd52783988e0c842021-11-25T16:09:32ZEffects of Potassium Availability on Growth and Development of Barley Cultivars10.3390/agronomy111122692073-4395https://doaj.org/article/588e0c08694b42bdbdd52783988e0c842021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4395/11/11/2269https://doaj.org/toc/2073-4395Potassium deficiency is one of the major issues affecting crop production around the globe. Giving the high cost of potassium fertilizers and environmental concerns related to inappropriate fertilization practices, developing more potassium use efficient (KUE) varieties is critical for sustainable food production in agricultural systems. In this study, we analysed the impact of potassium availability on agronomical attributes of thirty barley genotypes grown at four different levels of potassium (0.002 mM, 0.02 mM, 2 mM, 20 mM) under glasshouse conditions. The results showed that the availability of potassium in the soil had a major effect on yield components i.e., spike number, grain number and grain weight. Furthermore, grain weight showed a strong correlation with grain number and spike number at all levels of potassium supply. Although an increase in potassium supply led to an increase in plant height in all genotypes, the correlation with grain weight was very weak at all levels. Potassium supplementation caused an increase in shoot dry weight, which also showed a weak correlation with grain weight at the 0.002 mM potassium supply level. The genotypes Gebeina, Skiff, YF374, Flagship and YF374 were highly efficient in performing at suboptimal K supply levels and, thus, can be recommended to be grown in K-impoverished soils. We also suggest that grain and spike numbers could be used as proxies for KUE studies, to construct DH lines and identify QTL to improve low potassium tolerance and KUE in barley.Widad Al AzzawiMuhammad Bilal GillFoad FatehiMeixue ZhouTina AcuñaLana ShabalaMin YuSergey ShabalaMDPI AGarticlepotassium use efficiencygenotypic variabilitygrain numberQTLAgricultureSENAgronomy, Vol 11, Iss 2269, p 2269 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	potassium use efficiency genotypic variability grain number QTL Agriculture S
spellingShingle	potassium use efficiency genotypic variability grain number QTL Agriculture S Widad Al Azzawi Muhammad Bilal Gill Foad Fatehi Meixue Zhou Tina Acuña Lana Shabala Min Yu Sergey Shabala Effects of Potassium Availability on Growth and Development of Barley Cultivars
description	Potassium deficiency is one of the major issues affecting crop production around the globe. Giving the high cost of potassium fertilizers and environmental concerns related to inappropriate fertilization practices, developing more potassium use efficient (KUE) varieties is critical for sustainable food production in agricultural systems. In this study, we analysed the impact of potassium availability on agronomical attributes of thirty barley genotypes grown at four different levels of potassium (0.002 mM, 0.02 mM, 2 mM, 20 mM) under glasshouse conditions. The results showed that the availability of potassium in the soil had a major effect on yield components i.e., spike number, grain number and grain weight. Furthermore, grain weight showed a strong correlation with grain number and spike number at all levels of potassium supply. Although an increase in potassium supply led to an increase in plant height in all genotypes, the correlation with grain weight was very weak at all levels. Potassium supplementation caused an increase in shoot dry weight, which also showed a weak correlation with grain weight at the 0.002 mM potassium supply level. The genotypes Gebeina, Skiff, YF374, Flagship and YF374 were highly efficient in performing at suboptimal K supply levels and, thus, can be recommended to be grown in K-impoverished soils. We also suggest that grain and spike numbers could be used as proxies for KUE studies, to construct DH lines and identify QTL to improve low potassium tolerance and KUE in barley.
format	article
author	Widad Al Azzawi Muhammad Bilal Gill Foad Fatehi Meixue Zhou Tina Acuña Lana Shabala Min Yu Sergey Shabala
author_facet	Widad Al Azzawi Muhammad Bilal Gill Foad Fatehi Meixue Zhou Tina Acuña Lana Shabala Min Yu Sergey Shabala
author_sort	Widad Al Azzawi
title	Effects of Potassium Availability on Growth and Development of Barley Cultivars
title_short	Effects of Potassium Availability on Growth and Development of Barley Cultivars
title_full	Effects of Potassium Availability on Growth and Development of Barley Cultivars
title_fullStr	Effects of Potassium Availability on Growth and Development of Barley Cultivars
title_full_unstemmed	Effects of Potassium Availability on Growth and Development of Barley Cultivars
title_sort	effects of potassium availability on growth and development of barley cultivars
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/588e0c08694b42bdbdd52783988e0c84
work_keys_str_mv	AT widadalazzawi effectsofpotassiumavailabilityongrowthanddevelopmentofbarleycultivars AT muhammadbilalgill effectsofpotassiumavailabilityongrowthanddevelopmentofbarleycultivars AT foadfatehi effectsofpotassiumavailabilityongrowthanddevelopmentofbarleycultivars AT meixuezhou effectsofpotassiumavailabilityongrowthanddevelopmentofbarleycultivars AT tinaacuna effectsofpotassiumavailabilityongrowthanddevelopmentofbarleycultivars AT lanashabala effectsofpotassiumavailabilityongrowthanddevelopmentofbarleycultivars AT minyu effectsofpotassiumavailabilityongrowthanddevelopmentofbarleycultivars AT sergeyshabala effectsofpotassiumavailabilityongrowthanddevelopmentofbarleycultivars
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Effects of Potassium Availability on Growth and Development of Barley Cultivars

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