Photosynthetic Performance Measurements in Biomass Sorghum Varietals in Central Illinois During Four Growing Seasons
CABBI Theme: Feedstock Production
Keyword: Field Data
Jaikumar, N.S., Fernandes, S., Leakey, A.D.B., Brown, P.J., Stutz, S.S., Bernacchi, C.J., Long, S.P. March 8, 2021. “Photosynthetic Performance Measurements in Biomass Sorghum Varietals in Central Illinois during Four Growing Seasons.” University of Illinois Urbana-Champaign. DOI: 10.13012/B2IDB-4580996_V2.
In a set of field studies across four years, the effect of self-shading on photosynthetic performance in lower canopy sorghum leaves was studied at sites in Champaign County, Ill. Photosynthetic parameters in upper and lower canopy leaves, carbon assimilation, electron transport, stomatal conductance, and activity of three C4-specific photosynthetic enzymes, were compared within a genetically diverse range of accessions varying widely in canopy architecture and thereby in the degree of self-shading. Accessions with erect leaves and high light transmission through the canopy are henceforth referred to as “erectophile” and those with low leaf erectness, “planophile.” In the final year of the study, bundle sheath leakiness in erectophile and planophile accessions was also compared.
- Leaf Angles
- Biomass Height
- Light Response Parameters
- Canopy Light Interception
Jaikumar, N.S., Stutz, S.S., Fernandes, S.B., Leakey, A.D.B., Bernacchi, C.J., Brown, P.J., and Long, S.P. April 29, 2021. “Can improved canopy light transmission ameliorate loss of photosynthetic efficiency in the shade? An investigation of natural variation in Sorghum bicolor.” Journal of Experimental Botany. DOI: 10.1093/jxb/erab176.