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Is there potential to adapt soybean (Glycine maxMerr.) to future [CO2]?: an analysis of the yield response of 18 genotypes in free-air CO2 enrichment

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Is there potential to adapt soybean (Glycine maxMerr.) to future [CO2]? an analysis of the yield response of 18 genotypes in free-air CO2 enrichment. / Bishop, Kristen A.; Betzelberger, Amy M.; Long, Stephen P. et al.
In: Plant, Cell and Environment, Vol. 38, No. 9, 09.2015, p. 1765-1774.

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Bishop KA, Betzelberger AM, Long SP, Ainsworth EA. Is there potential to adapt soybean (Glycine maxMerr.) to future [CO2]? an analysis of the yield response of 18 genotypes in free-air CO2 enrichment. Plant, Cell and Environment. 2015 Sept;38(9):1765-1774. Epub 2014 Oct 26. doi: 10.1111/pce.12443

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Bishop, Kristen A. ; Betzelberger, Amy M. ; Long, Stephen P. et al. / Is there potential to adapt soybean (Glycine maxMerr.) to future [CO2]? an analysis of the yield response of 18 genotypes in free-air CO2 enrichment. In: Plant, Cell and Environment. 2015 ; Vol. 38, No. 9. pp. 1765-1774.

Bibtex

@article{57ea50b124f84a8f9d82aa7ee604ab4d,
title = "Is there potential to adapt soybean (Glycine maxMerr.) to future [CO2]?: an analysis of the yield response of 18 genotypes in free-air CO2 enrichment",
abstract = "Rising atmospheric [CO2] is a uniform, global change that increases C-3 photosynthesis and could offset some of the negative effects of global climate change on crop yields. Genetic variation in yield responsiveness to rising [CO2] would provide an opportunity to breed more responsive crop genotypes. A multi-year study of 18 soybean (Glycine maxMerr.) genotypes was carried out to identify variation in responsiveness to season-long elevated [CO2] (550ppm) under fully open-air replicated field conditions. On average across 18 genotypes, elevated [CO2] stimulated total above-ground biomass by 22%, but seed yield by only 9%, in part because most genotypes showed a reduction in partitioning of energy to seeds. Over four years of study, there was consistency from year to year in the genotypes that were most and least responsive to elevated [CO2], suggesting heritability of CO2 response. Further analysis of six genotypes did not reveal a photosynthetic basis for the variation in yield response. Although partitioning to seed was decreased, cultivars with the highest partitioning coefficient in current [CO2] also had the highest partitioning coefficient in elevated [CO2]. The results show the existence of genetic variation in soybean response to elevated [CO2], which is needed to breed soybean to the future atmospheric environment.This study investigated the response of 18 soybean varieties to elevated carbon dioxide concentrations ([CO2]) in the field. There was variation in the response of seed yield in the genotypes, ranging from no stimulation to a 22% increase in yield, and consistency from year to year in the varieties that were the most and least responsive to elevated [CO2]. Results support the potential to breed crops for enhanced CO2 response.",
keywords = "atmospheric change, biomass partitioning, climate change, crop development, crop yield, food security, global change, harvest index, ATMOSPHERIC CARBON-DIOXIDE, ELEVATED CO2, SEED YIELD, CLIMATE-CHANGE, FIELD, FACE, PHOTOSYNTHESIS, MAX, PLANTS, PRODUCTIVITY",
author = "Bishop, {Kristen A.} and Betzelberger, {Amy M.} and Long, {Stephen P.} and Ainsworth, {Elizabeth A.}",
year = "2015",
month = sep,
doi = "10.1111/pce.12443",
language = "English",
volume = "38",
pages = "1765--1774",
journal = "Plant, Cell and Environment",
issn = "0140-7791",
publisher = "Wiley",
number = "9",

}

RIS

TY - JOUR

T1 - Is there potential to adapt soybean (Glycine maxMerr.) to future [CO2]?

T2 - an analysis of the yield response of 18 genotypes in free-air CO2 enrichment

AU - Bishop, Kristen A.

AU - Betzelberger, Amy M.

AU - Long, Stephen P.

AU - Ainsworth, Elizabeth A.

PY - 2015/9

Y1 - 2015/9

N2 - Rising atmospheric [CO2] is a uniform, global change that increases C-3 photosynthesis and could offset some of the negative effects of global climate change on crop yields. Genetic variation in yield responsiveness to rising [CO2] would provide an opportunity to breed more responsive crop genotypes. A multi-year study of 18 soybean (Glycine maxMerr.) genotypes was carried out to identify variation in responsiveness to season-long elevated [CO2] (550ppm) under fully open-air replicated field conditions. On average across 18 genotypes, elevated [CO2] stimulated total above-ground biomass by 22%, but seed yield by only 9%, in part because most genotypes showed a reduction in partitioning of energy to seeds. Over four years of study, there was consistency from year to year in the genotypes that were most and least responsive to elevated [CO2], suggesting heritability of CO2 response. Further analysis of six genotypes did not reveal a photosynthetic basis for the variation in yield response. Although partitioning to seed was decreased, cultivars with the highest partitioning coefficient in current [CO2] also had the highest partitioning coefficient in elevated [CO2]. The results show the existence of genetic variation in soybean response to elevated [CO2], which is needed to breed soybean to the future atmospheric environment.This study investigated the response of 18 soybean varieties to elevated carbon dioxide concentrations ([CO2]) in the field. There was variation in the response of seed yield in the genotypes, ranging from no stimulation to a 22% increase in yield, and consistency from year to year in the varieties that were the most and least responsive to elevated [CO2]. Results support the potential to breed crops for enhanced CO2 response.

AB - Rising atmospheric [CO2] is a uniform, global change that increases C-3 photosynthesis and could offset some of the negative effects of global climate change on crop yields. Genetic variation in yield responsiveness to rising [CO2] would provide an opportunity to breed more responsive crop genotypes. A multi-year study of 18 soybean (Glycine maxMerr.) genotypes was carried out to identify variation in responsiveness to season-long elevated [CO2] (550ppm) under fully open-air replicated field conditions. On average across 18 genotypes, elevated [CO2] stimulated total above-ground biomass by 22%, but seed yield by only 9%, in part because most genotypes showed a reduction in partitioning of energy to seeds. Over four years of study, there was consistency from year to year in the genotypes that were most and least responsive to elevated [CO2], suggesting heritability of CO2 response. Further analysis of six genotypes did not reveal a photosynthetic basis for the variation in yield response. Although partitioning to seed was decreased, cultivars with the highest partitioning coefficient in current [CO2] also had the highest partitioning coefficient in elevated [CO2]. The results show the existence of genetic variation in soybean response to elevated [CO2], which is needed to breed soybean to the future atmospheric environment.This study investigated the response of 18 soybean varieties to elevated carbon dioxide concentrations ([CO2]) in the field. There was variation in the response of seed yield in the genotypes, ranging from no stimulation to a 22% increase in yield, and consistency from year to year in the varieties that were the most and least responsive to elevated [CO2]. Results support the potential to breed crops for enhanced CO2 response.

KW - atmospheric change

KW - biomass partitioning

KW - climate change

KW - crop development

KW - crop yield

KW - food security

KW - global change

KW - harvest index

KW - ATMOSPHERIC CARBON-DIOXIDE

KW - ELEVATED CO2

KW - SEED YIELD

KW - CLIMATE-CHANGE

KW - FIELD

KW - FACE

KW - PHOTOSYNTHESIS

KW - MAX

KW - PLANTS

KW - PRODUCTIVITY

U2 - 10.1111/pce.12443

DO - 10.1111/pce.12443

M3 - Journal article

VL - 38

SP - 1765

EP - 1774

JO - Plant, Cell and Environment

JF - Plant, Cell and Environment

SN - 0140-7791

IS - 9

ER -