Document Detail


Increasing productivity by matching farming system management and genotype in water-limited environments.
MedLine Citation:
PMID:  20709725     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Improvements in water productivity and yield arise from interactions between varieties (G) and their management (M). Most G×M interactions considered by breeders and physiologists focus on in-crop management (e.g. sowing time, plant density, N management). However, opportunities exist to capture more water and use it more effectively that involve judicious management of prior crops and fallows (e.g. crop sequence, weed control, residue management). The dry-land wheat production system of southern Australia, augmented by simulation studies, is used to demonstrate the relative impacts and interactions of a range of pre-crop and in-crop management decisions on water productivity. A specific case study reveals how a novel genetic trait, long coleoptiles that enable deeper sowing, can interact with different management options to increase the water-limited yield of wheat from 1.6 t ha(-1) to 4.5 t ha(-1), reflecting the experience of leading growers. Understanding such interactions will be necessary to capture benefits from new varieties within the farming systems of the future.
Authors:
J A Kirkegaard; J R Hunt
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review     Date:  2010-08-13
Journal Detail:
Title:  Journal of experimental botany     Volume:  61     ISSN:  1460-2431     ISO Abbreviation:  J. Exp. Bot.     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-10-18     Completed Date:  2011-01-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882906     Medline TA:  J Exp Bot     Country:  England    
Other Details:
Languages:  eng     Pagination:  4129-43     Citation Subset:  IM    
Affiliation:
CSIRO Sustainable Agriculture National Research Flagship, GPO Box 1600, Canberra, ACT 2601, Australia. john.kirkegaard@csiro.au
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MeSH Terms
Descriptor/Qualifier:
Agriculture / methods*,  organization & administration*
Crops, Agricultural / genetics*,  growth & development*
Efficiency, Organizational*
Environment*
Genotype
Triticum / genetics,  growth & development
Water* / analysis
Chemical
Reg. No./Substance:
7732-18-5/Water

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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