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ARS Home » Southeast Area » Stuttgart, Arkansas » Dale Bumpers National Rice Research Center » Research » Publications at this Location » Publication #349187

Title: Root biomass as a major means of affecting methane emissions

item KIM, WOOJAE - Korean Rural Development Administration
item Barnaby, Jinyoung
item LIEM, BUI - Cuu Long Delta Rice Research Institute
item CHUN, JAEBUHM - Korean Rural Development Administration
item McClung, Anna
item Adviento-Borbe, Arlene
item Pinson, Shannon

Submitted to: Rice Technical Working Group Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 1/19/2018
Publication Date: 10/16/2018
Citation: Kim, W., Barnaby, J.Y., Liem, B., Chun, J., McClung, A.M., Adviento-Borbe, A.A., Pinson, S.R. 2018. Root biomass as a major means of affecting methane emissions. Rice Technical Working Group Meeting Proceedings. February 19-22, 2018, San Diego, California. Electronic Publication.

Interpretive Summary:

Technical Abstract: Human activities are contributing to greenhouse gas emissions. Methane, the second most abundant greenhouse gas, is ~25 times more potent in global warming potential than carbon dioxide, and 7-17% of atmospheric methane comes from paddy rice fields. The purpose of the study was to investigate genetic variation in methane emissions; therefore, five rice cultivars were examined to relate seasonal methane profiles with anatomical and/or physiological characteristics i.e. root and shoot biomass, tiller number, aerenchyma density, plant height, developmental stage, etc. The results showed that root biomass was a major driver that affected total methane emissions. Further quantification of methane emissions was performed with ten recombinant inbred lines of a bi-parental mapping population segregating for root biomass, and verified root biomass as a trait affecting methane emissions. Further soil microbiome analysis associated with root biomass is under investigation.