Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519693
Title: Optimising root growth to improve uptake and utilization of water and nitrogen in wheat and barley
Author: César de Carvalho, Pedro Miguel
Awarding Body: University of Nottingham
Current Institution: University of Nottingham
Date of Award: 2009
Availability of Full Text:
Access from EThOS:
Access from Institution:
Abstract:
Durum wheat (Triticum turgidum L. var durum) and spring barley (Hordeum vulgare L.) are the most widely grown crop species in the semi-arid to arid areas of the Mediterranean region. However, their average on-farm yields are relatively low, 1.95 and 2.60 t ha-1, respectively (FAO, 2007). Water is generally recognized as the most limiting factor for barley and durum wheat production in the Mediterranean, though it has been found, at least for some regions, that N fertilizer applications have been limiting (Passioura, 2002). Water in the Mediterranean is relatively scarce and predictions for 2025 show that water limitations for agricultural production in that region will intensify (IWMI, 2000). Nitrogen fertilizer represents a significant cost of production for the grower and may also have negative environmental impacts through nitrate leaching, use of fossil fuels for manufacture and application, and N2O emissions associated with denitrification. Reducing excessive N fertilizer inputs and increasing water productivity, whilst maintaining acceptable yields, will be aided by increases in uptake efficiency.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.519693  DOI: Not available
Keywords: QK640 Plant anatomy
Share: