Response of root characteristics and yield in peanut under terminal drought condition

Drought at pod filling reduces growth, yield, and seed quality of peanut (Arachis hypogaea L.) Great root system can reduce yield loss under water stress. There is a lack of information on root traits for peanut genotypes and the relationship between rooting traits and peanut yield under terminal dr...

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Autores principales:	Junjittakarn,Junya, Girdthai,Teerayoot, Jogloy,Sanun, Vorasoot,Nimitr, Patanothai,Aran
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2014
Materias:	Arachis hypogaea drought tolerance groundnut harvest index pod yield root traits
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300001
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spelling	oai:scielo:S0718-583920140003000012018-10-01Response of root characteristics and yield in peanut under terminal drought conditionJunjittakarn,JunyaGirdthai,TeerayootJogloy,SanunVorasoot,NimitrPatanothai,Aran Arachis hypogaea drought tolerance groundnut harvest index pod yield root traits Drought at pod filling reduces growth, yield, and seed quality of peanut (Arachis hypogaea L.) Great root system can reduce yield loss under water stress. There is a lack of information on root traits for peanut genotypes and the relationship between rooting traits and peanut yield under terminal drought. The pot experiments were conducted at Khon Kaen University, Thailand, in 2004-2005 and 2005-2006. A randomized complete block design was used with two factorials set-up with four replicates. Factor A consisted of two water regimes (field capacity and 1/3 available water at 80 d after planting to harvest), and factor B comprised of 11 peanut genotypes. Data were recorded for root traits (root dry weight, root length, root surface, root diameter, and root volume), and peanut yield (pod dry weight, biomass, and harvest index) were measured at final harvest. Terminal drought significantly decrease root characteristics (0.83-1.03 g plant-1 of root dry weight) and peanut yield (7.98-8.89 g plant-1 of pod dry weight). Yield responses to terminal drought were not correlated with root traits except root length and root volume (r = 0.71 and 0.83, respectively). Some genotype, root traits seem to be correlated with peanut yield under terminal drought. ’KK60-3’ showed high root traits, maintained pod dry weight under terminal drought, whereas Tifton 8 maintained biomass production. ICGV98348 had high root traits, maintained pod dry weight and harvest index under drought conditions. The results suggested that peanut contained high root characters which maintained yield under terminal drought.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.74 n.3 20142014-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300001en10.4067/S0718-58392014000300001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Arachis hypogaea drought tolerance groundnut harvest index pod yield root traits
spellingShingle	Arachis hypogaea drought tolerance groundnut harvest index pod yield root traits Junjittakarn,Junya Girdthai,Teerayoot Jogloy,Sanun Vorasoot,Nimitr Patanothai,Aran Response of root characteristics and yield in peanut under terminal drought condition
description	Drought at pod filling reduces growth, yield, and seed quality of peanut (Arachis hypogaea L.) Great root system can reduce yield loss under water stress. There is a lack of information on root traits for peanut genotypes and the relationship between rooting traits and peanut yield under terminal drought. The pot experiments were conducted at Khon Kaen University, Thailand, in 2004-2005 and 2005-2006. A randomized complete block design was used with two factorials set-up with four replicates. Factor A consisted of two water regimes (field capacity and 1/3 available water at 80 d after planting to harvest), and factor B comprised of 11 peanut genotypes. Data were recorded for root traits (root dry weight, root length, root surface, root diameter, and root volume), and peanut yield (pod dry weight, biomass, and harvest index) were measured at final harvest. Terminal drought significantly decrease root characteristics (0.83-1.03 g plant-1 of root dry weight) and peanut yield (7.98-8.89 g plant-1 of pod dry weight). Yield responses to terminal drought were not correlated with root traits except root length and root volume (r = 0.71 and 0.83, respectively). Some genotype, root traits seem to be correlated with peanut yield under terminal drought. ’KK60-3’ showed high root traits, maintained pod dry weight under terminal drought, whereas Tifton 8 maintained biomass production. ICGV98348 had high root traits, maintained pod dry weight and harvest index under drought conditions. The results suggested that peanut contained high root characters which maintained yield under terminal drought.
author	Junjittakarn,Junya Girdthai,Teerayoot Jogloy,Sanun Vorasoot,Nimitr Patanothai,Aran
author_facet	Junjittakarn,Junya Girdthai,Teerayoot Jogloy,Sanun Vorasoot,Nimitr Patanothai,Aran
author_sort	Junjittakarn,Junya
title	Response of root characteristics and yield in peanut under terminal drought condition
title_short	Response of root characteristics and yield in peanut under terminal drought condition
title_full	Response of root characteristics and yield in peanut under terminal drought condition
title_fullStr	Response of root characteristics and yield in peanut under terminal drought condition
title_full_unstemmed	Response of root characteristics and yield in peanut under terminal drought condition
title_sort	response of root characteristics and yield in peanut under terminal drought condition
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300001
work_keys_str_mv	AT junjittakarnjunya responseofrootcharacteristicsandyieldinpeanutunderterminaldroughtcondition AT girdthaiteerayoot responseofrootcharacteristicsandyieldinpeanutunderterminaldroughtcondition AT jogloysanun responseofrootcharacteristicsandyieldinpeanutunderterminaldroughtcondition AT vorasootnimitr responseofrootcharacteristicsandyieldinpeanutunderterminaldroughtcondition AT patanothaiaran responseofrootcharacteristicsandyieldinpeanutunderterminaldroughtcondition
_version_	1714205336249827328

Response of root characteristics and yield in peanut under terminal drought condition

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