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dc.contributor.authorNichols, S. N.en
dc.contributor.authorHofmann, Raineren
dc.contributor.authorVerry, I. M.en
dc.contributor.authorWilliams, W. M.en
dc.date.accessioned2015-06-04T01:15:55Z
dc.date.issued2013en
dc.identifier.isbn978-1-74256-543-9en
dc.identifier.urihttps://hdl.handle.net/10182/6580
dc.description.abstractThe objective of this study was to determine the effect of hybridisation with Trifolium uniflorumL. on drought resistance of Trifolium repens L. (white clover). Shoot dry weight of backcross 1 (BC1) hybrids was reduced less by water stress than for backcross 2 (BC2) hybrids and white clover, as were key morphological traits such as leaf area. Under water stress, important differences for the BC1 generation compared to white clover also included lower senescence, higher stolon density, increased root dry weight, and a higher maximum nodal root diameter. Drought decreased the net photosynthetic rate by up to 48% in BC2 and white clover, but there was no significant effect on the BC1 generation. BC1 hybrids were therefore more resistant to water stress than white clover. Smaller effects on stolon morphology suggest BC1 hybrids were better able to maintain cell turgor and growth, and maintenance of photosynthesis under drought may have contributed to smaller reductions in productivity. The findings suggest that BC1 hybrids may be able to maintain higher water uptake during drought than white clover by increased allocation to root biomass.en
dc.description.sponsorshipFunding was provided by DairyNZ and the Ministry of Business, Innovation and Employment.en
dc.format.extent115-117 (3)en
dc.language.isoenen
dc.publisherNew South Wales Department of Primary Industryen
dc.relationThe original publication is available from - New South Wales Department of Primary Industry - http://www.grassland.org.nz/viewpublication.php?pubID=377en
dc.rights© 2013 Proceedings of the 22nd International Grassland Congressen
dc.source22nd International Grassland Congressen
dc.subjectTrifolium repensen
dc.subjectwater stressen
dc.subjectdry matter productionen
dc.subjectsenescenceen
dc.subjectmorphologyen
dc.subjectphotosynthesisen
dc.titleImproved drought stress tolerance of white clover through hybridisation with Trifolium uniflorum L.en
dc.typeConference Contribution - Published
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitDepartment of Wine, Food and Molecular Biosciencesen
lu.contributor.uniten
lu.contributor.uniten
dc.subject.anzsrc0703 Crop and Pasture Productionen
dc.relation.isPartOf2013 Proceedings of the 22nd International Grassland Congressen
pubs.finish-date2013-09-19en
pubs.organisational-group/LU
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.organisational-group/LU/Agriculture and Life Sciences/WFMB
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/2018 PBRF Staff group
pubs.publication-statusPublisheden
pubs.publisher-urlhttp://www.grassland.org.nz/viewpublication.php?pubID=377en
pubs.start-date2013-09-15en
lu.identifier.orcid0000-0002-1804-2319
dc.identifier.eisbn978-1-74256-542-2en
lu.subtypeConference Paperen


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