Seed germination and proline accumulation in rice (oryza sativa L.) as affected by salt concentrations

Plant cells accumulate praline as an osmoprotectant to conserve osmotic stability and prevent damage. However, the accumulation of proline may not be associated with tolerance to salinity. This study considered the influences of NaCl and Na2SO4 compositions, at different concentrations, on seed ge...

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Main Authors: Momayezi, Mohammad Reza, Abdul Rahman, Zaharah, Musa, Mohamed Hanafi, Ismail, Mohd Razi
Format: Article
Language:English
Published: Universiti Putra Malaysia Press 2009
Online Access:http://psasir.upm.edu.my/id/eprint/5588/1/seed_germination_and_proline_accumulation_in_rice_as_effected_by_salt_concestration.pdf
http://psasir.upm.edu.my/id/eprint/5588/
http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JTAS%20Vol.%2032%20(2)%20Aug.%202009/18%20Pages%20247-259.pdf
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spelling my.upm.eprints.55882015-09-22T03:39:07Z http://psasir.upm.edu.my/id/eprint/5588/ Seed germination and proline accumulation in rice (oryza sativa L.) as affected by salt concentrations Momayezi, Mohammad Reza Abdul Rahman, Zaharah Musa, Mohamed Hanafi Ismail, Mohd Razi Plant cells accumulate praline as an osmoprotectant to conserve osmotic stability and prevent damage. However, the accumulation of proline may not be associated with tolerance to salinity. This study considered the influences of NaCl and Na2SO4 compositions, at different concentrations, on seed germination and accumulation of proline in eleven rice genotypes. Rice seeds were grown in petri dishes in the laboratory and treated with distilled water as a control and NaCl and Na2SO4 (1:1 molar concentration ratio) at 2.5, 5.0, 7.5 and 10 dS m-1 electrical conductivity for 14 days. The mean germination time (MGT) was positively affected by the increase in the concentration of salt. Conversely, there was a negative relationship between germination index (GI) and salt concentration. Shirodi, Fajr, and Shafag can be classified into salt tolerant group, while Tarom-e-Hashemi was identified as salt susceptible, based on MGT and GI. Slight changes were recorded within dry weight and water content of seedlings at different salt levels. The maximum accumulation of proline was observed at 5 dS m-1 salt concentration. No relationship was established between the accumulation of proline and the growth parameters. Universiti Putra Malaysia Press 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/5588/1/seed_germination_and_proline_accumulation_in_rice_as_effected_by_salt_concestration.pdf Momayezi, Mohammad Reza and Abdul Rahman, Zaharah and Musa, Mohamed Hanafi and Ismail, Mohd Razi (2009) Seed germination and proline accumulation in rice (oryza sativa L.) as affected by salt concentrations. Pertanika Journal of Tropical Agricultural Science, 32 (2). 247 -259. ISSN 1511-3701 http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JTAS%20Vol.%2032%20(2)%20Aug.%202009/18%20Pages%20247-259.pdf
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Plant cells accumulate praline as an osmoprotectant to conserve osmotic stability and prevent damage. However, the accumulation of proline may not be associated with tolerance to salinity. This study considered the influences of NaCl and Na2SO4 compositions, at different concentrations, on seed germination and accumulation of proline in eleven rice genotypes. Rice seeds were grown in petri dishes in the laboratory and treated with distilled water as a control and NaCl and Na2SO4 (1:1 molar concentration ratio) at 2.5, 5.0, 7.5 and 10 dS m-1 electrical conductivity for 14 days. The mean germination time (MGT) was positively affected by the increase in the concentration of salt. Conversely, there was a negative relationship between germination index (GI) and salt concentration. Shirodi, Fajr, and Shafag can be classified into salt tolerant group, while Tarom-e-Hashemi was identified as salt susceptible, based on MGT and GI. Slight changes were recorded within dry weight and water content of seedlings at different salt levels. The maximum accumulation of proline was observed at 5 dS m-1 salt concentration. No relationship was established between the accumulation of proline and the growth parameters.
format Article
author Momayezi, Mohammad Reza
Abdul Rahman, Zaharah
Musa, Mohamed Hanafi
Ismail, Mohd Razi
spellingShingle Momayezi, Mohammad Reza
Abdul Rahman, Zaharah
Musa, Mohamed Hanafi
Ismail, Mohd Razi
Seed germination and proline accumulation in rice (oryza sativa L.) as affected by salt concentrations
author_facet Momayezi, Mohammad Reza
Abdul Rahman, Zaharah
Musa, Mohamed Hanafi
Ismail, Mohd Razi
author_sort Momayezi, Mohammad Reza
title Seed germination and proline accumulation in rice (oryza sativa L.) as affected by salt concentrations
title_short Seed germination and proline accumulation in rice (oryza sativa L.) as affected by salt concentrations
title_full Seed germination and proline accumulation in rice (oryza sativa L.) as affected by salt concentrations
title_fullStr Seed germination and proline accumulation in rice (oryza sativa L.) as affected by salt concentrations
title_full_unstemmed Seed germination and proline accumulation in rice (oryza sativa L.) as affected by salt concentrations
title_sort seed germination and proline accumulation in rice (oryza sativa l.) as affected by salt concentrations
publisher Universiti Putra Malaysia Press
publishDate 2009
url http://psasir.upm.edu.my/id/eprint/5588/1/seed_germination_and_proline_accumulation_in_rice_as_effected_by_salt_concestration.pdf
http://psasir.upm.edu.my/id/eprint/5588/
http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JTAS%20Vol.%2032%20(2)%20Aug.%202009/18%20Pages%20247-259.pdf
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