Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)

The physiological and nutrient uptake performance of two wheat (Triticum aestivum L.) cultivars (Lasani-2008 and Auqab-2000) to foliar application of 1% potassium (K) at three different growth stages (tillering, flower initiation and grain filling) was investigated under water limited environment in...

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Autores principales:	Samar Raza,M. A, Farrukh Saleem,M, Mustafa Shah,G, Jamil,M, Haider Khan,I
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2013
Materias:	drought foliar application potassium wheat tolerance physiological efficiency
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000100016
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spelling	oai:scielo:S0718-951620130001000162014-09-16Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)Samar Raza,M. AFarrukh Saleem,MMustafa Shah,GJamil,MHaider Khan,I drought foliar application potassium wheat tolerance physiological efficiency The physiological and nutrient uptake performance of two wheat (Triticum aestivum L.) cultivars (Lasani-2008 and Auqab-2000) to foliar application of 1% potassium (K) at three different growth stages (tillering, flower initiation and grain filling) was investigated under water limited environment in a wire house experiment at the Nuclear Institute for Agriculture and Biology, Faisalabad. The aim was to find out the best K application stage for improvement in drought tolerance potential. Drought stress was created by withholding irrigation at the three growth stages and then K was sprayed with carboxymethyl cellulose as a sticking agent, whereas Tween-20 was used as a surfactant for foliar spray. At maturity, aboveground nitrogen, phosphorus, K, sodium and calcium uptakes by the crop were measured. Besides, water potential, osmotic potential and turgor potential of crop were also estimated. The results indicated that the drought stress at all three critical growth stages of wheat adversely affected plant's nutrient uptake, water potential, osmotic potential and turgor potential of wheat plants. The exogenous application of K under drought stress at all three critical growth stages enhanced tolerance of wheat by reducing toxic nutrient's uptake and improving the physiological efficiency. In this regards, both varieties showed uniform behavior. Maximum improvement in all the recorded nutrients uptake and physiological parameters was achieved when K was applied at grain filling stage of both cultivars.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.13 n.1 20132013-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000100016en10.4067/S0718-95162013005000016
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	drought foliar application potassium wheat tolerance physiological efficiency
spellingShingle	drought foliar application potassium wheat tolerance physiological efficiency Samar Raza,M. A Farrukh Saleem,M Mustafa Shah,G Jamil,M Haider Khan,I Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)
description	The physiological and nutrient uptake performance of two wheat (Triticum aestivum L.) cultivars (Lasani-2008 and Auqab-2000) to foliar application of 1% potassium (K) at three different growth stages (tillering, flower initiation and grain filling) was investigated under water limited environment in a wire house experiment at the Nuclear Institute for Agriculture and Biology, Faisalabad. The aim was to find out the best K application stage for improvement in drought tolerance potential. Drought stress was created by withholding irrigation at the three growth stages and then K was sprayed with carboxymethyl cellulose as a sticking agent, whereas Tween-20 was used as a surfactant for foliar spray. At maturity, aboveground nitrogen, phosphorus, K, sodium and calcium uptakes by the crop were measured. Besides, water potential, osmotic potential and turgor potential of crop were also estimated. The results indicated that the drought stress at all three critical growth stages of wheat adversely affected plant's nutrient uptake, water potential, osmotic potential and turgor potential of wheat plants. The exogenous application of K under drought stress at all three critical growth stages enhanced tolerance of wheat by reducing toxic nutrient's uptake and improving the physiological efficiency. In this regards, both varieties showed uniform behavior. Maximum improvement in all the recorded nutrients uptake and physiological parameters was achieved when K was applied at grain filling stage of both cultivars.
author	Samar Raza,M. A Farrukh Saleem,M Mustafa Shah,G Jamil,M Haider Khan,I
author_facet	Samar Raza,M. A Farrukh Saleem,M Mustafa Shah,G Jamil,M Haider Khan,I
author_sort	Samar Raza,M. A
title	Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)
title_short	Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)
title_full	Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)
title_fullStr	Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)
title_full_unstemmed	Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)
title_sort	potassium applied under drought improves physiological and nutrient uptake performances of wheat (triticum aestivun l.)
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162013000100016
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Potassium applied under drought improves physiological and nutrient uptake performances of wheat (Triticum Aestivun L.)

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