Agronomic performances of three vetch species growing under different drought levels

The current challenge of agriculture is to get the best yields while overcoming frequent water deficit conditions. The objective of this study was to compare performances of three vetch species (Vicia narbonensis L., V. sativa L., and V. villosa Roth) subjected to water stress. Plants were sown in p...

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Autores principales:	Haffani,Sywar, Mezni,Majid, Chaibi,Wided *
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2014
Materias:	Adaptation growth Vicia spp. water stress water use efficiency yiel
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300003
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spelling	oai:scielo:S0718-583920140003000032018-10-01Agronomic performances of three vetch species growing under different drought levelsHaffani,SywarMezni,MajidChaibi,Wided * Adaptation growth Vicia spp. water stress water use efficiency yiel The current challenge of agriculture is to get the best yields while overcoming frequent water deficit conditions. The objective of this study was to compare performances of three vetch species (Vicia narbonensis L., V. sativa L., and V. villosa Roth) subjected to water stress. Plants were sown in pots under rainout shelter and submitted to four water regimes: control (100% field capacity [FC]), 80%, 60%, and 40% FC through 3 yr experiment. Results showed that V. narbonensis had the smallest declines in all the studied variables in response to water restriction but the highest water use efficiency (WUE) and stress tolerance index (STI) in both control and water-treated plants. This indicates the greater tolerance of this species to water constraint and its better water use. Vicia villosa was characterized by drastic declines in leaf area and DM yield (75% and 64%, respectively). It had also the smallest WUE and STI suggesting its low adaptation to water stress. Vicia sativa showed severe reductions in seed yield and yield components; accordingly, it was the most sensitive species in terms of seed yield. The three species implied avoidance strategies to cope with water stress. The different levels of drought tolerance explain the species ecological distribution in Tunisia.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=S0718-58392014000300003en10.4067/S0718-58392014000300003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Adaptation growth Vicia spp. water stress water use efficiency yiel
spellingShingle	Adaptation growth Vicia spp. water stress water use efficiency yiel Haffani,Sywar Mezni,Majid Chaibi,Wided * Agronomic performances of three vetch species growing under different drought levels
description	The current challenge of agriculture is to get the best yields while overcoming frequent water deficit conditions. The objective of this study was to compare performances of three vetch species (Vicia narbonensis L., V. sativa L., and V. villosa Roth) subjected to water stress. Plants were sown in pots under rainout shelter and submitted to four water regimes: control (100% field capacity [FC]), 80%, 60%, and 40% FC through 3 yr experiment. Results showed that V. narbonensis had the smallest declines in all the studied variables in response to water restriction but the highest water use efficiency (WUE) and stress tolerance index (STI) in both control and water-treated plants. This indicates the greater tolerance of this species to water constraint and its better water use. Vicia villosa was characterized by drastic declines in leaf area and DM yield (75% and 64%, respectively). It had also the smallest WUE and STI suggesting its low adaptation to water stress. Vicia sativa showed severe reductions in seed yield and yield components; accordingly, it was the most sensitive species in terms of seed yield. The three species implied avoidance strategies to cope with water stress. The different levels of drought tolerance explain the species ecological distribution in Tunisia.
author	Haffani,Sywar Mezni,Majid Chaibi,Wided *
author_facet	Haffani,Sywar Mezni,Majid Chaibi,Wided *
author_sort	Haffani,Sywar
title	Agronomic performances of three vetch species growing under different drought levels
title_short	Agronomic performances of three vetch species growing under different drought levels
title_full	Agronomic performances of three vetch species growing under different drought levels
title_fullStr	Agronomic performances of three vetch species growing under different drought levels
title_full_unstemmed	Agronomic performances of three vetch species growing under different drought levels
title_sort	agronomic performances of three vetch species growing under different drought levels
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300003
work_keys_str_mv	AT haffanisywar agronomicperformancesofthreevetchspeciesgrowingunderdifferentdroughtlevels AT meznimajid agronomicperformancesofthreevetchspeciesgrowingunderdifferentdroughtlevels AT chaibiwided agronomicperformancesofthreevetchspeciesgrowingunderdifferentdroughtlevels
_version_	1714205336586420224

Agronomic performances of three vetch species growing under different drought levels

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