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Adaptive significance of functional germination traits in crop wild relatives of Brassica

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Castillo-Lorenzo, E., Finch-Savage, William E., Seal, C. E. and Pritchard, H. W. (2019) Adaptive significance of functional germination traits in crop wild relatives of Brassica. Agricultural and Forest Meteorology, 264 . pp. 343-350. doi:10.1016/j.agrformet.2018.10.014 ISSN 0168-1923.

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Official URL: http://dx.doi.org/10.1016/j.agrformet.2018.10.014

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Abstract

Functional germination traits contribute to both niche competitiveness and crop yield outcomes. However, there is little understanding of the adaptive significance of the germination thermal- and hydro-parameters in crop wild relatives (CWRs), yet these species are anticipated to be the source of adaptive traits for future agriculture. Seeds of 10 seed lots of Brassica species, sub-species and inbred lines from across Europe, North Africa and the Middle East were subjected to a range of temperature and water potential conditions. The germination progress curves recorded were analysed using repeated probit analysis and the functional trait parameters (thermal- and hydro thresholds and times) determined. Relationships between these seed parameters (and the physical trait, seed mass) and the seed source environment were investigated.

Item Type: Journal Article
Subjects: Q Science > QK Botany
S Agriculture > SB Plant culture
Divisions: Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- )
Library of Congress Subject Headings (LCSH): Brassica, Germination, Crop yields, Germplasm resources, Plant
Journal or Publication Title: Agricultural and Forest Meteorology
Publisher: Elsevier
ISSN: 0168-1923
Official Date: 15 January 2019
Dates:
DateEvent
15 January 2019Published
7 November 2018Available
22 October 2018Accepted
Volume: 264
Page Range: pp. 343-350
DOI: 10.1016/j.agrformet.2018.10.014
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIEDSeventh Framework Programmehttp://dx.doi.org/10.13039/100011102
UNSPECIFIEDRoyal Botanical Gardens, Kewhttp://dx.doi.org/10.13039/501100001296

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