Re-watering: An effective measure to recover growth and photosynthetic characteristics in salt-stressed Brassica napus L.

ABSTRACT Salinity is one of major environmental problem which is limiting the agricultural production. This research was conducted to evaluate the effect of re-watering on Brassica napus L., and determination of an appropriate regime for dilution of salted water by studying photosynthetic and growth...

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Autores principales:	Javed,Qaiser, Wu,Yanyou, Xing,Deke, Azeem,Ahmad, Ullah,Ikram, Zaman,Muhammad
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2017
Materias:	Carbonic anhydrase activity growth re-watering salt stress photosynthetic traits.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000100010
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spelling	oai:scielo:S0718-583920170001000102017-11-09Re-watering: An effective measure to recover growth and photosynthetic characteristics in salt-stressed Brassica napus L.Javed,QaiserWu,YanyouXing,DekeAzeem,AhmadUllah,IkramZaman,Muhammad Carbonic anhydrase activity growth re-watering salt stress photosynthetic traits. ABSTRACT Salinity is one of major environmental problem which is limiting the agricultural production. This research was conducted to evaluate the effect of re-watering on Brassica napus L., and determination of an appropriate regime for dilution of salted water by studying photosynthetic and growth response of B. napus to salt stress and subsequent re-watering. Plants were treated with NaCl (Nc1: 2.5, Nc2: 5, Nc3: 10; g L-1); Na2SO4 (Ns1: 2.5, Ns2: 5, Ns3: 10; g L-1) and mixed salts treatments (M1: Nc1+ Ns3; M2: Nc3+ Ns1; M3: Nc2+ Ns2; g L-1) and 0 as control, followed by re-watering. In salt stress phase, maximum reduction in net photosynthetic rate (PN) was noted 79.54%, 80.72%, 84.54%, and 74.84% for Nc3, Ns3, M1 and M2, respectively, under high concentration levels. To maintain PN, carbonic anhydrase (CA) activity was stimulated and kept water status stable under low (Nc1 and Ns1) to medium concentration levels (Nc2, Ns2 and M3), and the decreases in PN under Nc2, Ns2 and M3 were 48.28%, 55.58% and 58.69%, respectively. However, during re-watering phase, growth and physiological parameters were recovered well due to regulation of CA activity under low to medium concentration levels. Relatively as compare to other stress levels more recovery in PN was found after re-watering under medium concentration levels, which were 44.94%, 53.45% and 63.04%, respectively. Though aimed at consideration of high production in B. napus, the best re-watering time was found to be when plants undergo medium concentration levels. Therefore, this study provides a new method for dilution of saline irrigation based on plant physiology.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.77 n.1 20172017-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000100010en10.4067/S0718-58392017000100010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Carbonic anhydrase activity growth re-watering salt stress photosynthetic traits.
spellingShingle	Carbonic anhydrase activity growth re-watering salt stress photosynthetic traits. Javed,Qaiser Wu,Yanyou Xing,Deke Azeem,Ahmad Ullah,Ikram Zaman,Muhammad Re-watering: An effective measure to recover growth and photosynthetic characteristics in salt-stressed Brassica napus L.
description	ABSTRACT Salinity is one of major environmental problem which is limiting the agricultural production. This research was conducted to evaluate the effect of re-watering on Brassica napus L., and determination of an appropriate regime for dilution of salted water by studying photosynthetic and growth response of B. napus to salt stress and subsequent re-watering. Plants were treated with NaCl (Nc1: 2.5, Nc2: 5, Nc3: 10; g L-1); Na2SO4 (Ns1: 2.5, Ns2: 5, Ns3: 10; g L-1) and mixed salts treatments (M1: Nc1+ Ns3; M2: Nc3+ Ns1; M3: Nc2+ Ns2; g L-1) and 0 as control, followed by re-watering. In salt stress phase, maximum reduction in net photosynthetic rate (PN) was noted 79.54%, 80.72%, 84.54%, and 74.84% for Nc3, Ns3, M1 and M2, respectively, under high concentration levels. To maintain PN, carbonic anhydrase (CA) activity was stimulated and kept water status stable under low (Nc1 and Ns1) to medium concentration levels (Nc2, Ns2 and M3), and the decreases in PN under Nc2, Ns2 and M3 were 48.28%, 55.58% and 58.69%, respectively. However, during re-watering phase, growth and physiological parameters were recovered well due to regulation of CA activity under low to medium concentration levels. Relatively as compare to other stress levels more recovery in PN was found after re-watering under medium concentration levels, which were 44.94%, 53.45% and 63.04%, respectively. Though aimed at consideration of high production in B. napus, the best re-watering time was found to be when plants undergo medium concentration levels. Therefore, this study provides a new method for dilution of saline irrigation based on plant physiology.
author	Javed,Qaiser Wu,Yanyou Xing,Deke Azeem,Ahmad Ullah,Ikram Zaman,Muhammad
author_facet	Javed,Qaiser Wu,Yanyou Xing,Deke Azeem,Ahmad Ullah,Ikram Zaman,Muhammad
author_sort	Javed,Qaiser
title	Re-watering: An effective measure to recover growth and photosynthetic characteristics in salt-stressed Brassica napus L.
title_short	Re-watering: An effective measure to recover growth and photosynthetic characteristics in salt-stressed Brassica napus L.
title_full	Re-watering: An effective measure to recover growth and photosynthetic characteristics in salt-stressed Brassica napus L.
title_fullStr	Re-watering: An effective measure to recover growth and photosynthetic characteristics in salt-stressed Brassica napus L.
title_full_unstemmed	Re-watering: An effective measure to recover growth and photosynthetic characteristics in salt-stressed Brassica napus L.
title_sort	re-watering: an effective measure to recover growth and photosynthetic characteristics in salt-stressed brassica napus l.
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000100010
work_keys_str_mv	AT javedqaiser rewateringaneffectivemeasuretorecovergrowthandphotosyntheticcharacteristicsinsaltstressedbrassicanapusl AT wuyanyou rewateringaneffectivemeasuretorecovergrowthandphotosyntheticcharacteristicsinsaltstressedbrassicanapusl AT xingdeke rewateringaneffectivemeasuretorecovergrowthandphotosyntheticcharacteristicsinsaltstressedbrassicanapusl AT azeemahmad rewateringaneffectivemeasuretorecovergrowthandphotosyntheticcharacteristicsinsaltstressedbrassicanapusl AT ullahikram rewateringaneffectivemeasuretorecovergrowthandphotosyntheticcharacteristicsinsaltstressedbrassicanapusl AT zamanmuhammad rewateringaneffectivemeasuretorecovergrowthandphotosyntheticcharacteristicsinsaltstressedbrassicanapusl
_version_	1714205367062233088

Re-watering: An effective measure to recover growth and photosynthetic characteristics in salt-stressed Brassica napus L.

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