Photosynthetic performance index in early stage of growth, water use efficiency, and grain yield of winter barley cultivars

Repetitive heat and drought stress conditions have a significant impact on quantity and quality of barley (Hordeum vulgare L.) production in most regions of the world. Objective of this study was to determine the relationships between photosynthetic performance index (PI ABS), water use (WU), grain...

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Autores principales:	Kovačević,Josip, Mazur,Maja, Lalić,Alojzije, Josipović,Marko, Josipović,Ana, Kočar,Maja Matoa, Marković,Monika, Antunović,Jasenka, Cesar,Vera
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2015
Materias:	Grain yield Hordeum vulgare multi-environmental trials photosynthetic performance index water use water use efficiency
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000400002
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spelling	oai:scielo:S0718-583920150004000022018-10-01Photosynthetic performance index in early stage of growth, water use efficiency, and grain yield of winter barley cultivarsKovačević,JosipMazur,MajaLalić,AlojzijeJosipović,MarkoJosipović,AnaKočar,Maja MatoaMarković,MonikaAntunović,JasenkaCesar,Vera Grain yield Hordeum vulgare multi-environmental trials photosynthetic performance index water use water use efficiency Repetitive heat and drought stress conditions have a significant impact on quantity and quality of barley (Hordeum vulgare L.) production in most regions of the world. Objective of this study was to determine the relationships between photosynthetic performance index (PI ABS), water use (WU), grain yield-based water use efficiency (WUE G), and grain yield per pot (GYP) of winter barley cultivars grown in a pot trial under short-term drought stress conditions and grain yield and its stability from the multi-environmental field trials. Ten winter barley cultivars were examined in two water treatments. One treatment was well watered, while the second treatment was subjected to short-term stress caused by deficiency of water in the stages of full tillering, beginning of heading, and grain filling. PI ABS was measured at full tillering stage while WU, WUE G, and GYP of barley cultivars were estimated after the whole vegetative cycle. Also, multi-environmental field trials with the same winter barley cultivars were carried out during 4 yr (2004-2007) and 3 yr (2009-2011) with two sowing densities (300 and 450 seeds m-2) on multiple locations in the lowland part of the Republic of Croatia. ANOVA showed highly significant (P ≤ 0.001) cultivar effect for all of the examined traits in the pot trial. PI ABS of cultivars in both treatments was in a negative nonsignificant correlation with grain yield and grain yield stability (ecovalence) of the same cultivars in multi-environmental field trials. Winter barley cultivars with higher WU and WUE G also had higher values of grain yield, and harvest index observed on the basis of the pot trial. WU, WUE G, and GYP of 10 barley cultivars in pot trial showed highly positive phenotypic correlation with grain yield of all eight and 10 barley cultivars in the multi-environmental field trials. These results suggests that WU and WUE G could be good indicators for preliminary selection of modern, high yielding, and stable winter barley genotypes which have better water management capabilities.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.75 n.3 20152015-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000400002en10.4067/S0718-58392015000400002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Grain yield Hordeum vulgare multi-environmental trials photosynthetic performance index water use water use efficiency
spellingShingle	Grain yield Hordeum vulgare multi-environmental trials photosynthetic performance index water use water use efficiency Kovačević,Josip Mazur,Maja Lalić,Alojzije Josipović,Marko Josipović,Ana Kočar,Maja Matoa Marković,Monika Antunović,Jasenka Cesar,Vera Photosynthetic performance index in early stage of growth, water use efficiency, and grain yield of winter barley cultivars
description	Repetitive heat and drought stress conditions have a significant impact on quantity and quality of barley (Hordeum vulgare L.) production in most regions of the world. Objective of this study was to determine the relationships between photosynthetic performance index (PI ABS), water use (WU), grain yield-based water use efficiency (WUE G), and grain yield per pot (GYP) of winter barley cultivars grown in a pot trial under short-term drought stress conditions and grain yield and its stability from the multi-environmental field trials. Ten winter barley cultivars were examined in two water treatments. One treatment was well watered, while the second treatment was subjected to short-term stress caused by deficiency of water in the stages of full tillering, beginning of heading, and grain filling. PI ABS was measured at full tillering stage while WU, WUE G, and GYP of barley cultivars were estimated after the whole vegetative cycle. Also, multi-environmental field trials with the same winter barley cultivars were carried out during 4 yr (2004-2007) and 3 yr (2009-2011) with two sowing densities (300 and 450 seeds m-2) on multiple locations in the lowland part of the Republic of Croatia. ANOVA showed highly significant (P ≤ 0.001) cultivar effect for all of the examined traits in the pot trial. PI ABS of cultivars in both treatments was in a negative nonsignificant correlation with grain yield and grain yield stability (ecovalence) of the same cultivars in multi-environmental field trials. Winter barley cultivars with higher WU and WUE G also had higher values of grain yield, and harvest index observed on the basis of the pot trial. WU, WUE G, and GYP of 10 barley cultivars in pot trial showed highly positive phenotypic correlation with grain yield of all eight and 10 barley cultivars in the multi-environmental field trials. These results suggests that WU and WUE G could be good indicators for preliminary selection of modern, high yielding, and stable winter barley genotypes which have better water management capabilities.
author	Kovačević,Josip Mazur,Maja Lalić,Alojzije Josipović,Marko Josipović,Ana Kočar,Maja Matoa Marković,Monika Antunović,Jasenka Cesar,Vera
author_facet	Kovačević,Josip Mazur,Maja Lalić,Alojzije Josipović,Marko Josipović,Ana Kočar,Maja Matoa Marković,Monika Antunović,Jasenka Cesar,Vera
author_sort	Kovačević,Josip
title	Photosynthetic performance index in early stage of growth, water use efficiency, and grain yield of winter barley cultivars
title_short	Photosynthetic performance index in early stage of growth, water use efficiency, and grain yield of winter barley cultivars
title_full	Photosynthetic performance index in early stage of growth, water use efficiency, and grain yield of winter barley cultivars
title_fullStr	Photosynthetic performance index in early stage of growth, water use efficiency, and grain yield of winter barley cultivars
title_full_unstemmed	Photosynthetic performance index in early stage of growth, water use efficiency, and grain yield of winter barley cultivars
title_sort	photosynthetic performance index in early stage of growth, water use efficiency, and grain yield of winter barley cultivars
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000400002
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Photosynthetic performance index in early stage of growth, water use efficiency, and grain yield of winter barley cultivars

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