Yubi, Y., Jun,
L., Haiyang, N.
and Xiuyun, Z.
2019
Collaborative
influence of
elevated CO2
concentration
and high temperature
on potato biomass
accumulation and
characteristics.
Open Chemistry 17: 728-737.
NOTE:
Chinese scientists
Yubi et al. (2019)
examined the
interactive effects
of elevated CO2
and temperature
on various growth
and biomass
characteristics
of potato
(Solanum tuberosum),
the fourth major
global food crop.
SUMMARY:
Potato yields
will increase
in the future
due to
elevated CO2,
elevated temperature
or a combination
of the two factors.
The results showed that
"the accumulation
of dry weight
of potato stem and
aboveground biomass
under the combined
treatment of elevated CO2
concentration and
high temperature
(warming)
was significantly higher
than that of the control group
by 35.8%-53.4% and
significantly higher than
that of the warming
treatment group
by 24.4%-34.4%."
Below ground
tuber growth at the
mature stage
also benefitted
from elevated CO2
and warming;
it was 24.1% higher
than the warming
treatment alone and
3.4% higher than the
control treatment of
ambient CO2 and
ambient temperature.
DETAILS:
Their work
was conducted at
the Lanzhou Institute
of Arid Meteorology,
China Meteorological
Administration,
Lanzhou, China,
in 2016 and 2017.
Potato plants
(cv. New Daping)
were grown in
open-top chambers
under ambient CO2
( 370 ppm )
or elevated CO2
( 650 ppm )
with the extra CO2
being supplied
continuously
during daylight hours
( 0700-1900 hours ).
Air temperatures
were maintained
at either ambient
or ambient +2°C.