Claim · model-written summary
Elevated [CO2] increased vegetative and reproductive growth, including seed yield, in all three rice genotypes at ambient temperature of 29 °C.
- Taxon
- rice
Oryza sativat0 - Material
- all three genotypese0
- Treatment
- elevated [CO(2)]e0
- Outcome
- vegetative and reproductive growth, including seed yielde0
- Direction
- increasede0
- Qualifier
- ambient air temperature of 29 °Ce0
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of elevated CO2 and high temperature on seed-set and grain quality of rice”
e0“Under an ambient air temperature of 29 °C (tissue temperature 28.3 °C), elevated [CO(2)] increased vegetative and reproductive growth, including seed yield in all three genotypes”
Title
Effect of elevated CO2 and high temperature on seed-set and grain quality of rice
P. Madan; S. V. K. Jagadish; P. Q. Craufurd; et al. Journal of Experimental Botany 2012. doi:10.1093/jxb/ers077
Other claims from this paper (12)
- Intervention effect Seed-set was reduced by high temperature in all three rice genotypes.
- Intervention effect The hybrid and IR64 were equally affected by high temperature in seed-set and twice as sensitive as the tolerant cultivar N22.
- Association No interaction occurred between temperature and [CO2] for seed-set.
- Observation The hybrid had significantly more anthesed spikelets than IR64 at all temperatures.
- Observation At 29 °C the higher spikelet number resulted in a large yield advantage of the hybrid.
- Observation At 35 °C the hybrid had a higher seed yield than IR64 due to the higher spikelet number.
- Observation At 38 °C the hybrid had no yield advantage.
- Intervention effect Grain gel consistency in the hybrid and IR64 was reduced by high temperatures only at elevated [CO2].
- Intervention effect The percentage of broken grains in the hybrid increased from 10% at 29 °C to 35% at 38 °C.
- Intervention effect Seed-set of hybrid rice is susceptible to short episodes of high temperature during anthesis.
- Observation At intermediate tissue temperatures of 32.9 °C the higher spikelet number of the hybrid can compensate to some extent.
- Recommendation Transferring heat tolerance from N22 or other tolerant donors into hybrids could maintain yield under higher temperatures predicted with climate change.