Volume 14, Issue 54 (winter 2011)
jwss 2011, 14(54): 167-179 |
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Phosphorus and Zinc Distribution in Different Parts of Wheat and Various Growth Stages Under Greenhouse and Its Relation to These Nutrients in Soil . jwss 2011; 14 (54) :167-179
URL: http://jstnar.iut.ac.ir/article-1-1460-en.html
URL: http://jstnar.iut.ac.ir/article-1-1460-en.html
Abstract: (29191 Views)
The effect of phosphorus (P) (0, 25, and 50 mg kg-1 soil as Ca(H2PO4)2) and organic matter (OM) (0, and 2% w/w feedlot cattle manure) on P and zinc (Zn) distribution in different parts of wheat plant (Triticum aestivum L.) at various growth stages and its relationship with soil P and Zn were determined in greenhouse condition. In all pots, shoot P concentration decreased as plant growth proceeded. Phosphorus concentration of shoot and flag leaf decreased from 7th to 9th stage of growth, whereas that of spickle increased. Spickle P uptake and Zn uptake of stem, shoot, flag leaf, and spickle increased with proceeding of wheat growth. Phosphorus uptake of shoot increased from 3th to 9th growth stages, whereas P uptake of stem and flag leaf decreased from 7th to 9th growth stages. Soil P and Zn concentrations increased with application of P and OM and plant growth. The trend of P and Zn changes in shoot, stem and flag leaf was similar. It is, therefore, concluded that analyzing flag leaf for P and Zn concentrations be used for prediction of plant nutritional status of those nutrient elements in cases where such information is needed.
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