Grain yield, agronomic traits, and protein content of two- and six-row barley genotypes under terminal drought conditions

ABSTRACT Small grain cereals in lower latitude areas usually mature under terminal drought conditions that affect their agronomic performance. An experiment was conducted to compare agronomic traits, grain yield, and protein content under control and terminal drought conditions of 15 two-row and 10...

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Autores principales:	Kandic,Vesna, Dodig,Dejan, Secanski,Mile, Prodanovic,Slaven, Brankovic,Gordana, Titan,Primoz
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2019
Materias:	Abiotic stress barley quality grain filling grain yield Horedeum vulgare
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000400648
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spelling	oai:scielo:S0718-583920190004006482019-11-19Grain yield, agronomic traits, and protein content of two- and six-row barley genotypes under terminal drought conditionsKandic,VesnaDodig,DejanSecanski,MileProdanovic,SlavenBrankovic,GordanaTitan,Primoz Abiotic stress barley quality grain filling grain yield Horedeum vulgare ABSTRACT Small grain cereals in lower latitude areas usually mature under terminal drought conditions that affect their agronomic performance. An experiment was conducted to compare agronomic traits, grain yield, and protein content under control and terminal drought conditions of 15 two-row and 10 six-row barley (Hordeum vulgare L.) genotypes. The experiment was set up at two locations for two growing seasons (2011, 2012) and two treatments. One treatment was terminal drought (D) simulated by the mechanical removal of all leaf blades 7 d after the heading of each genotype, and a control (C) treatment in which plants were left intact. On average, defoliation caused a greater reduction in grain yield and protein content of the six-row genotypes (37.6% and 12.3%, respectively) than the two-row genotypes (28.8% and 7.1%, respectively). On the other hand, test weight of six-row genotypes showed better tolerance to terminal drought. According to the multivariate function analysis, the genotypes of both types of barley with a high test weight, a longer uppermost internode, and a longer grain filling period had high protein content under terminal drought stress. In contrast to six-row genotypes, it is possible to breed two-row genotypes that not only have high grain yield but also high protein content under both optimal and drought stress conditions.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.79 n.4 20192019-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000400648en10.4067/S0718-58392019000400648
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Abiotic stress barley quality grain filling grain yield Horedeum vulgare
spellingShingle	Abiotic stress barley quality grain filling grain yield Horedeum vulgare Kandic,Vesna Dodig,Dejan Secanski,Mile Prodanovic,Slaven Brankovic,Gordana Titan,Primoz Grain yield, agronomic traits, and protein content of two- and six-row barley genotypes under terminal drought conditions
description	ABSTRACT Small grain cereals in lower latitude areas usually mature under terminal drought conditions that affect their agronomic performance. An experiment was conducted to compare agronomic traits, grain yield, and protein content under control and terminal drought conditions of 15 two-row and 10 six-row barley (Hordeum vulgare L.) genotypes. The experiment was set up at two locations for two growing seasons (2011, 2012) and two treatments. One treatment was terminal drought (D) simulated by the mechanical removal of all leaf blades 7 d after the heading of each genotype, and a control (C) treatment in which plants were left intact. On average, defoliation caused a greater reduction in grain yield and protein content of the six-row genotypes (37.6% and 12.3%, respectively) than the two-row genotypes (28.8% and 7.1%, respectively). On the other hand, test weight of six-row genotypes showed better tolerance to terminal drought. According to the multivariate function analysis, the genotypes of both types of barley with a high test weight, a longer uppermost internode, and a longer grain filling period had high protein content under terminal drought stress. In contrast to six-row genotypes, it is possible to breed two-row genotypes that not only have high grain yield but also high protein content under both optimal and drought stress conditions.
author	Kandic,Vesna Dodig,Dejan Secanski,Mile Prodanovic,Slaven Brankovic,Gordana Titan,Primoz
author_facet	Kandic,Vesna Dodig,Dejan Secanski,Mile Prodanovic,Slaven Brankovic,Gordana Titan,Primoz
author_sort	Kandic,Vesna
title	Grain yield, agronomic traits, and protein content of two- and six-row barley genotypes under terminal drought conditions
title_short	Grain yield, agronomic traits, and protein content of two- and six-row barley genotypes under terminal drought conditions
title_full	Grain yield, agronomic traits, and protein content of two- and six-row barley genotypes under terminal drought conditions
title_fullStr	Grain yield, agronomic traits, and protein content of two- and six-row barley genotypes under terminal drought conditions
title_full_unstemmed	Grain yield, agronomic traits, and protein content of two- and six-row barley genotypes under terminal drought conditions
title_sort	grain yield, agronomic traits, and protein content of two- and six-row barley genotypes under terminal drought conditions
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000400648
work_keys_str_mv	AT kandicvesna grainyieldagronomictraitsandproteincontentoftwoandsixrowbarleygenotypesunderterminaldroughtconditions AT dodigdejan grainyieldagronomictraitsandproteincontentoftwoandsixrowbarleygenotypesunderterminaldroughtconditions AT secanskimile grainyieldagronomictraitsandproteincontentoftwoandsixrowbarleygenotypesunderterminaldroughtconditions AT prodanovicslaven grainyieldagronomictraitsandproteincontentoftwoandsixrowbarleygenotypesunderterminaldroughtconditions AT brankovicgordana grainyieldagronomictraitsandproteincontentoftwoandsixrowbarleygenotypesunderterminaldroughtconditions AT titanprimoz grainyieldagronomictraitsandproteincontentoftwoandsixrowbarleygenotypesunderterminaldroughtconditions
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Grain yield, agronomic traits, and protein content of two- and six-row barley genotypes under terminal drought conditions

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