Indeed, it was reported that decline of Mg2+ concentration could contribute to the reduction in net assimilation rate and to accumulation of assimilates in leaves (Alaoui-Sosse et al., 2004).
Photosynthesis, measured as net assimilation of CO2, also oscillated with a period close to 24 hr.
This resulted in a 28% reduction in drought-induced midafternoon depression in net assimilation rate (A).
Drought stress decreased leaf area duration, cumulative water transpired, net assimilation rate, mean transpiration rate, harvest index, and biomass yield in both varieties studied.
As plant density increased, and consequently the degree of shading increased, the net assimilation rate (NAR) decreased and the leaf area ratio (LAR) increased.
Biomass at harvest was significantly greater in NIL-3 than in 'Koshihikari' owing to a higher net assimilation rate during ripening, resulting in a higher grain yield.
In addition, the supplemental U-VB appeared to effect the distribution of dry matter but did not effect the net assimilation ratio of the wheat.
Percent contribution of free-living and attached autotrophs and heterotrophs in control and warm treatments were applied to bulk 14C- and 3H-derived primary and bacterial production rates to estimate net assimilation values in carbon and nitrogen units (Table 1).
At least under the conditions of this study, these results also suggest that xanthophyll cycle pigment activity and net carbon uptake are coordinately regulated, allowing assays of Photosystem II activity to reveal changing rates of net assimilation.
But it's a net assimilation of knowledge". "I think it's important that people understand that it is incremental," says Charles Beichman, executive director of the NASA Exoplanet Science Institute at Caltech.
Plants grown using soil mulch plus row cover presented higher values of plant biomass, specific leaf area (SLA), relative growth rate (RGR), and net assimilation rate (NAR) compared to control plants.
