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Cited by 112Plant responses to elevated CO2Seed Germination and PhysiologyClimate change impacts on agriculture

Effects of elevated CO 2 and temperature on seed quality

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HAMPTON, J. G., BOELT, B., ROLSTON, M. P., CHASTAIN, T. G.·2013·The Journal of Agricultural Science
DOI 10.1017/s0021859612000263PMC PMC3594839
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Abstract

SUMMARY: Successful crop production depends initially on the availability of high-quality seed. By 2050 global climate change will have influenced crop yields, but will these changes affect seed quality? The present review examines the effects of elevated carbon dioxide (CO 2 ) and temperature during seed production on three seed quality components: seed mass, germination and seed vigour. In response to elevated CO 2 , seed mass has been reported to both increase and decrease in C 3 plants, but not change in C 4 plants. Increases are greater in legumes than non-legumes, and there is considerable variation among species. Seed mass increases may result in a decrease of seed nitrogen (N) concentration in non-legumes. Increasing temperature may decrease seed mass because of an accelerated growth rate and reduced seed filling duration, but lower seed mass does not necessarily reduce seed germination or vigour. Like seed mass, reported seed germination responses to elevated CO 2 have been variable. The reported changes in seed C/N ratio can decrease seed protein content which may eventually lead to reduced viability. Conversely, increased ethylene production may stimulate germination in some species. High-temperature stress before developing seeds reach physiological maturity (PM) can reduce germination by inhibiting the ability of the plant to supply the assimilates necessary to synthesize the storage compounds required for germination. Nothing is known concerning the effects of elevated CO 2 on seed vigour. However, seed vigour can be reduced by high-temperature stress both before and after PM. High temperatures induce or increase the physiological deterioration of seeds. Limited evidence suggests that only short periods of high-temperature stress at critical seed development stages are required to reduce seed vigour, but further research is required. The predicted environmental changes will lead to losses of seed quality, particularly for seed vigour and possibly germination. The seed industry will need to consider management changes to minimize the risk of this occurring.

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  • Seed performance depends on genetic factors and on the environmental conditions the parent plant was exposed to during seed formation and development, as well as the interaction between genetics and environmental conditions during germination.

    “Seed performance depends on genetic factors and on the environmental conditions the parent plant was exposed to during the formation and the development of seeds as well as the interaction between genetics and environmental conditions during germination (Bettey et al., 2000; Hampton et al., 2013; Li et al., 2017).”

    From Exploring the Applicability of Calorespirometry to Assess Seed Metabolic Stability Upon Temperature Stress Conditions—Pisum sativum L. Used as a Case Study (2022) · cites this paper as Hampton et al., 2013

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Authors
HAMPTON, J. G., BOELT, B., ROLSTON, M. P., & CHASTAIN, T. G.
Affiliations
  • Lincoln University (NZ)
  • Aarhus University (DK)
  • AgResearch (NZ)
  • Oregon State University (US)
Corresponding author
HAMPTON, J. G.
ORCID
Venue
The Journal of Agricultural Science
Publisher
Cambridge University Press (CUP)
Published
2012-03-30
Volume
151
Issue
2
Pages
154-162
ISSN
  • 0021-8596 (ISSN-L)
  • 1469-5146
DOI
10.1017/s0021859612000263
PMC
PMC3594839
OpenAlex
W2148324592
Cited by
112
References
0
Citations by year
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FWCI
2.92
Type
journal article
Language
en
Open access
Licence
Locations
  • The Journal of Agricultural Science (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • Lincoln University Research Archive (Lincoln University) (submittedVersion, cc-by-nc-sa)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant responses to elevated CO2
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Seed Germination and Physiology
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Climate change impacts on agriculture
Keywords
elevated CO2, high temperature, climate change, seed quality, seed weight, seed germination, seed vigor, seed nitrogen concentration, C/N ratio, seed protein content, ethylene, heat stress, seed development stages, Fabaceae, C3 and C4 plants, seed viability

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