Leaf nitrogen and chlorophyll as indicators for salt stress

The effect of salinity on nitrogen absorption and leaf chlorophyll content of wheat (cv. Falat) was studied in two separate greenhouse traits, both in a completely randomized block design with three replication. Three levels of nitrogen (0, 1.19 and 5.94 g Urea/pot) and three levels of salinity (0,...

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Main Authors: masoome salehi, alireza koochaki, mehdi nassiri mahalati
Format: Article
Language:fas
Published: Ferdowsi University of Mashhad 2009-06-01
Series:پژوهشهای زراعی ایران
Online Access:https://jcesc.um.ac.ir/index.php/arable/article/view/1161
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author masoome salehi
alireza koochaki
mehdi nassiri mahalati
author_facet masoome salehi
alireza koochaki
mehdi nassiri mahalati
author_sort masoome salehi
collection DOAJ
description The effect of salinity on nitrogen absorption and leaf chlorophyll content of wheat (cv. Falat) was studied in two separate greenhouse traits, both in a completely randomized block design with three replication. Three levels of nitrogen (0, 1.19 and 5.94 g Urea/pot) and three levels of salinity (0, 150 and 300 mol/m3 salts) were used as treatments. Salinity conducted by combining sodium and calcium chloride in a 1:10 molar ratio and pots were irrigated with modified Hogland solution in close system. Leaf chlorophyll and nitrogen contents, stomatal resistance, specific leaf weight (SLW) specific leaf nitrogen (SLN) were measured at booting and anthesis stages. The results showed a high correlation between SPAD reading (leaf chlorophyll) and leaf nitrogen content and SLN. Leaf nitrogen content reduced but SLN and stomatal resistance increased by increasing salinity levels. SPAD reading increased up to salinity levels of 150 mol/m3 but reduced at higher salt concentration. Adjusted SPAD reading on SLW (SPAD/SLW) showed higher correlation with salinity levels compared to unadjusted SPAD reading and may used as indicator for severity of salt stress.
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spelling doaj.art-c88c3b549900478493b68ffc509700d02022-12-21T20:04:46ZfasFerdowsi University of Mashhadپژوهشهای زراعی ایران2008-14722423-39782009-06-0121253410.22067/gsc.v2i1.1161669Leaf nitrogen and chlorophyll as indicators for salt stressmasoome salehialireza koochakimehdi nassiri mahalatiThe effect of salinity on nitrogen absorption and leaf chlorophyll content of wheat (cv. Falat) was studied in two separate greenhouse traits, both in a completely randomized block design with three replication. Three levels of nitrogen (0, 1.19 and 5.94 g Urea/pot) and three levels of salinity (0, 150 and 300 mol/m3 salts) were used as treatments. Salinity conducted by combining sodium and calcium chloride in a 1:10 molar ratio and pots were irrigated with modified Hogland solution in close system. Leaf chlorophyll and nitrogen contents, stomatal resistance, specific leaf weight (SLW) specific leaf nitrogen (SLN) were measured at booting and anthesis stages. The results showed a high correlation between SPAD reading (leaf chlorophyll) and leaf nitrogen content and SLN. Leaf nitrogen content reduced but SLN and stomatal resistance increased by increasing salinity levels. SPAD reading increased up to salinity levels of 150 mol/m3 but reduced at higher salt concentration. Adjusted SPAD reading on SLW (SPAD/SLW) showed higher correlation with salinity levels compared to unadjusted SPAD reading and may used as indicator for severity of salt stress.https://jcesc.um.ac.ir/index.php/arable/article/view/1161
spellingShingle masoome salehi
alireza koochaki
mehdi nassiri mahalati
Leaf nitrogen and chlorophyll as indicators for salt stress
پژوهشهای زراعی ایران
title Leaf nitrogen and chlorophyll as indicators for salt stress
title_full Leaf nitrogen and chlorophyll as indicators for salt stress
title_fullStr Leaf nitrogen and chlorophyll as indicators for salt stress
title_full_unstemmed Leaf nitrogen and chlorophyll as indicators for salt stress
title_short Leaf nitrogen and chlorophyll as indicators for salt stress
title_sort leaf nitrogen and chlorophyll as indicators for salt stress
url https://jcesc.um.ac.ir/index.php/arable/article/view/1161
work_keys_str_mv AT masoomesalehi leafnitrogenandchlorophyllasindicatorsforsaltstress
AT alirezakoochaki leafnitrogenandchlorophyllasindicatorsforsaltstress
AT mehdinassirimahalati leafnitrogenandchlorophyllasindicatorsforsaltstress