Sodium and potassium uptake of rice panicles as affected by salinity and season in relation to yield and yield components
Salinity is a major yield-reducing stress in many and and/or coastal irrigation systems for rice. Past studies on salt stress have mainly addressed the vegetative growth stage of rice, and little is known on salt effects on the reproductive organs. Sodium and potassium uptake of panicles was studied for eight rice cultivars in field trials under irrigation with saline and fresh water in the hot dry season and the wet season 1994 at WARDA in Ndiaye, Senegal. Sodium and potassium content was determined at four different stages of panicle development and related to salt treatment effects on yield, yield components and panicle transpiration. Yield and yield components were strongly affected by salinity, the effects being stronger in the HDS than in the WS. The cultivars differed in the amount of salt taken up by the panicle. Tolerant cultivars had lower panicle sodium content at all panicle development stages than susceptible ones. Panicle potassium concentration decreased with panicle development under both treatments in all cultivars, but to a lesser extent in salt treated susceptible cultivars. Grain weight reduction in the early panicle development stages and spikelet sterility increase in the later PDS were highly correlated (p < 0.01) with an increase in panicle sodium concentration in both seasons, whereas reduction in spikelet number was not. The magnitude of salt-induced yield loss could not be explained with increases in sodium uptake to the panicle alone. It is argued that the amount of sodium taken up by the panicle may be determined by two different factors. One factor (before flowering) being the overall control mechanism of sodium uptake through root properties and the subsequent distribution of sodium in the vegetative plant, whereas the other (from flowering onwards) is probably linked to panicle transpiration.
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Subjects: | F61 - Physiologie végétale - Nutrition, F01 - Culture des plantes, F06 - Irrigation, Oryza sativa, inflorescence, absorption de substances nutritives, sodium, potassium, salinité, eau d'irrigation, saison, composante de rendement, transpiration, panicule, http://aims.fao.org/aos/agrovoc/c_5438, http://aims.fao.org/aos/agrovoc/c_3858, http://aims.fao.org/aos/agrovoc/c_5273, http://aims.fao.org/aos/agrovoc/c_7145, http://aims.fao.org/aos/agrovoc/c_6139, http://aims.fao.org/aos/agrovoc/c_6751, http://aims.fao.org/aos/agrovoc/c_3958, http://aims.fao.org/aos/agrovoc/c_6911, http://aims.fao.org/aos/agrovoc/c_24419, http://aims.fao.org/aos/agrovoc/c_7871, http://aims.fao.org/aos/agrovoc/c_24557, http://aims.fao.org/aos/agrovoc/c_6970, |
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dig-cirad-fr-2632562024-01-27T07:57:45Z http://agritrop.cirad.fr/263256/ http://agritrop.cirad.fr/263256/ Sodium and potassium uptake of rice panicles as affected by salinity and season in relation to yield and yield components. Asch Folkard, Dingkuhn Michaël, Wittstock C., Doerffling Karl. 1999. Plant and Soil, 207 (2) : 133-145.https://doi.org/10.1023/A:1026407913216 <https://doi.org/10.1023/A:1026407913216> Sodium and potassium uptake of rice panicles as affected by salinity and season in relation to yield and yield components Asch, Folkard Dingkuhn, Michaël Wittstock, C. Doerffling, Karl eng 1999 Plant and Soil F61 - Physiologie végétale - Nutrition F01 - Culture des plantes F06 - Irrigation Oryza sativa inflorescence absorption de substances nutritives sodium potassium salinité eau d'irrigation saison composante de rendement transpiration panicule http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_3858 http://aims.fao.org/aos/agrovoc/c_5273 http://aims.fao.org/aos/agrovoc/c_7145 http://aims.fao.org/aos/agrovoc/c_6139 http://aims.fao.org/aos/agrovoc/c_6751 http://aims.fao.org/aos/agrovoc/c_3958 http://aims.fao.org/aos/agrovoc/c_6911 http://aims.fao.org/aos/agrovoc/c_24419 http://aims.fao.org/aos/agrovoc/c_7871 http://aims.fao.org/aos/agrovoc/c_24557 Sénégal http://aims.fao.org/aos/agrovoc/c_6970 Salinity is a major yield-reducing stress in many and and/or coastal irrigation systems for rice. Past studies on salt stress have mainly addressed the vegetative growth stage of rice, and little is known on salt effects on the reproductive organs. Sodium and potassium uptake of panicles was studied for eight rice cultivars in field trials under irrigation with saline and fresh water in the hot dry season and the wet season 1994 at WARDA in Ndiaye, Senegal. Sodium and potassium content was determined at four different stages of panicle development and related to salt treatment effects on yield, yield components and panicle transpiration. Yield and yield components were strongly affected by salinity, the effects being stronger in the HDS than in the WS. The cultivars differed in the amount of salt taken up by the panicle. Tolerant cultivars had lower panicle sodium content at all panicle development stages than susceptible ones. Panicle potassium concentration decreased with panicle development under both treatments in all cultivars, but to a lesser extent in salt treated susceptible cultivars. Grain weight reduction in the early panicle development stages and spikelet sterility increase in the later PDS were highly correlated (p < 0.01) with an increase in panicle sodium concentration in both seasons, whereas reduction in spikelet number was not. The magnitude of salt-induced yield loss could not be explained with increases in sodium uptake to the panicle alone. It is argued that the amount of sodium taken up by the panicle may be determined by two different factors. One factor (before flowering) being the overall control mechanism of sodium uptake through root properties and the subsequent distribution of sodium in the vegetative plant, whereas the other (from flowering onwards) is probably linked to panicle transpiration. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/263256/1/263256.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1023/A:1026407913216 10.1023/A:1026407913216 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=5715 info:eu-repo/semantics/altIdentifier/doi/10.1023/A:1026407913216 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1023/A:1026407913216 |
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F61 - Physiologie végétale - Nutrition F01 - Culture des plantes F06 - Irrigation Oryza sativa inflorescence absorption de substances nutritives sodium potassium salinité eau d'irrigation saison composante de rendement transpiration panicule http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_3858 http://aims.fao.org/aos/agrovoc/c_5273 http://aims.fao.org/aos/agrovoc/c_7145 http://aims.fao.org/aos/agrovoc/c_6139 http://aims.fao.org/aos/agrovoc/c_6751 http://aims.fao.org/aos/agrovoc/c_3958 http://aims.fao.org/aos/agrovoc/c_6911 http://aims.fao.org/aos/agrovoc/c_24419 http://aims.fao.org/aos/agrovoc/c_7871 http://aims.fao.org/aos/agrovoc/c_24557 http://aims.fao.org/aos/agrovoc/c_6970 F61 - Physiologie végétale - Nutrition F01 - Culture des plantes F06 - Irrigation Oryza sativa inflorescence absorption de substances nutritives sodium potassium salinité eau d'irrigation saison composante de rendement transpiration panicule http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_3858 http://aims.fao.org/aos/agrovoc/c_5273 http://aims.fao.org/aos/agrovoc/c_7145 http://aims.fao.org/aos/agrovoc/c_6139 http://aims.fao.org/aos/agrovoc/c_6751 http://aims.fao.org/aos/agrovoc/c_3958 http://aims.fao.org/aos/agrovoc/c_6911 http://aims.fao.org/aos/agrovoc/c_24419 http://aims.fao.org/aos/agrovoc/c_7871 http://aims.fao.org/aos/agrovoc/c_24557 http://aims.fao.org/aos/agrovoc/c_6970 |
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F61 - Physiologie végétale - Nutrition F01 - Culture des plantes F06 - Irrigation Oryza sativa inflorescence absorption de substances nutritives sodium potassium salinité eau d'irrigation saison composante de rendement transpiration panicule http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_3858 http://aims.fao.org/aos/agrovoc/c_5273 http://aims.fao.org/aos/agrovoc/c_7145 http://aims.fao.org/aos/agrovoc/c_6139 http://aims.fao.org/aos/agrovoc/c_6751 http://aims.fao.org/aos/agrovoc/c_3958 http://aims.fao.org/aos/agrovoc/c_6911 http://aims.fao.org/aos/agrovoc/c_24419 http://aims.fao.org/aos/agrovoc/c_7871 http://aims.fao.org/aos/agrovoc/c_24557 http://aims.fao.org/aos/agrovoc/c_6970 F61 - Physiologie végétale - Nutrition F01 - Culture des plantes F06 - Irrigation Oryza sativa inflorescence absorption de substances nutritives sodium potassium salinité eau d'irrigation saison composante de rendement transpiration panicule http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_3858 http://aims.fao.org/aos/agrovoc/c_5273 http://aims.fao.org/aos/agrovoc/c_7145 http://aims.fao.org/aos/agrovoc/c_6139 http://aims.fao.org/aos/agrovoc/c_6751 http://aims.fao.org/aos/agrovoc/c_3958 http://aims.fao.org/aos/agrovoc/c_6911 http://aims.fao.org/aos/agrovoc/c_24419 http://aims.fao.org/aos/agrovoc/c_7871 http://aims.fao.org/aos/agrovoc/c_24557 http://aims.fao.org/aos/agrovoc/c_6970 Asch, Folkard Dingkuhn, Michaël Wittstock, C. Doerffling, Karl Sodium and potassium uptake of rice panicles as affected by salinity and season in relation to yield and yield components |
description |
Salinity is a major yield-reducing stress in many and and/or coastal irrigation systems for rice. Past studies on salt stress have mainly addressed the vegetative growth stage of rice, and little is known on salt effects on the reproductive organs. Sodium and potassium uptake of panicles was studied for eight rice cultivars in field trials under irrigation with saline and fresh water in the hot dry season and the wet season 1994 at WARDA in Ndiaye, Senegal. Sodium and potassium content was determined at four different stages of panicle development and related to salt treatment effects on yield, yield components and panicle transpiration. Yield and yield components were strongly affected by salinity, the effects being stronger in the HDS than in the WS. The cultivars differed in the amount of salt taken up by the panicle. Tolerant cultivars had lower panicle sodium content at all panicle development stages than susceptible ones. Panicle potassium concentration decreased with panicle development under both treatments in all cultivars, but to a lesser extent in salt treated susceptible cultivars. Grain weight reduction in the early panicle development stages and spikelet sterility increase in the later PDS were highly correlated (p < 0.01) with an increase in panicle sodium concentration in both seasons, whereas reduction in spikelet number was not. The magnitude of salt-induced yield loss could not be explained with increases in sodium uptake to the panicle alone. It is argued that the amount of sodium taken up by the panicle may be determined by two different factors. One factor (before flowering) being the overall control mechanism of sodium uptake through root properties and the subsequent distribution of sodium in the vegetative plant, whereas the other (from flowering onwards) is probably linked to panicle transpiration. |
format |
article |
topic_facet |
F61 - Physiologie végétale - Nutrition F01 - Culture des plantes F06 - Irrigation Oryza sativa inflorescence absorption de substances nutritives sodium potassium salinité eau d'irrigation saison composante de rendement transpiration panicule http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_3858 http://aims.fao.org/aos/agrovoc/c_5273 http://aims.fao.org/aos/agrovoc/c_7145 http://aims.fao.org/aos/agrovoc/c_6139 http://aims.fao.org/aos/agrovoc/c_6751 http://aims.fao.org/aos/agrovoc/c_3958 http://aims.fao.org/aos/agrovoc/c_6911 http://aims.fao.org/aos/agrovoc/c_24419 http://aims.fao.org/aos/agrovoc/c_7871 http://aims.fao.org/aos/agrovoc/c_24557 http://aims.fao.org/aos/agrovoc/c_6970 |
author |
Asch, Folkard Dingkuhn, Michaël Wittstock, C. Doerffling, Karl |
author_facet |
Asch, Folkard Dingkuhn, Michaël Wittstock, C. Doerffling, Karl |
author_sort |
Asch, Folkard |
title |
Sodium and potassium uptake of rice panicles as affected by salinity and season in relation to yield and yield components |
title_short |
Sodium and potassium uptake of rice panicles as affected by salinity and season in relation to yield and yield components |
title_full |
Sodium and potassium uptake of rice panicles as affected by salinity and season in relation to yield and yield components |
title_fullStr |
Sodium and potassium uptake of rice panicles as affected by salinity and season in relation to yield and yield components |
title_full_unstemmed |
Sodium and potassium uptake of rice panicles as affected by salinity and season in relation to yield and yield components |
title_sort |
sodium and potassium uptake of rice panicles as affected by salinity and season in relation to yield and yield components |
url |
http://agritrop.cirad.fr/263256/ http://agritrop.cirad.fr/263256/1/263256.pdf |
work_keys_str_mv |
AT aschfolkard sodiumandpotassiumuptakeofricepaniclesasaffectedbysalinityandseasoninrelationtoyieldandyieldcomponents AT dingkuhnmichael sodiumandpotassiumuptakeofricepaniclesasaffectedbysalinityandseasoninrelationtoyieldandyieldcomponents AT wittstockc sodiumandpotassiumuptakeofricepaniclesasaffectedbysalinityandseasoninrelationtoyieldandyieldcomponents AT doerfflingkarl sodiumandpotassiumuptakeofricepaniclesasaffectedbysalinityandseasoninrelationtoyieldandyieldcomponents |
_version_ |
1792485470048878592 |