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Regulation of photosynthetic rates of submerged rooted macrophytes
Oecologia, 1989Fourteen temperate, submerged macrophytes were cultivated in the laboratory at high DIC levels (3.3-3.8 mM), 10.4-14.4 mol photons (PAR) m-2 d-1 and 15°C. Photosynthesis at photosaturation ranged between 0.59 and 17.98 mg O2 g-1 DW h-1 at ambient pH (8.3) and were markedly higher between 1.76 and 47.11 mg O2 g-1 DW h-1 at pH 6.5 under elevated CO2 ...
Nielsen, Søren L., Jensen, Kaj Sand
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Leaf Greenness and Photosynthetic Rates in Soybean
Crop Science, 1995Leaf photosynthesis is a complex process. Determination of photosynthetic rate is too time‐consuming to be used as a field selection criterion for cultivar development. Two field experiments were conducted in 1994 to quantify the relationships of leaf photosynthetic rates and other leaf characteristics (greenness, area, specific weight) of soybean ...
B. L. Ma, M. J. Morrison, H. D. Voldeng
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Physiologia Plantarum, 2023
AbstractA coordinated increase in the photosynthetic rate (A) and photosynthetic nitrogen use efficiency (PNUE) is an effective strategy for improving crop yield and nitrogen (N) utilization efficiency. PNUE tends to decrease with increasing N levels, but there are natural variations.
Wenshi Hu +9 more
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AbstractA coordinated increase in the photosynthetic rate (A) and photosynthetic nitrogen use efficiency (PNUE) is an effective strategy for improving crop yield and nitrogen (N) utilization efficiency. PNUE tends to decrease with increasing N levels, but there are natural variations.
Wenshi Hu +9 more
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Light intensity and photosynthetic rates in phytoplankton
Journal of the Fisheries Research Board of Canada, 1973The physiological behavior of various phytoplankton species has been examined under increasing and decreasing light regimes. A marked asymmetry has been found, with photosynthesis rates under rising light intensities exceeding those under dimming lights. Photoinhibition has been observed at moderate light intensities (0.4–1.0 ly/min).
Graham P. Harris, John N. A. Lott
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Effect of assimilate utilization on photosynthetic rate in wheat
Planta, 1967Two weeks after anthesis, when the grain is filling rapidly, the rate of photosynthesis by flag leaves of wheat cv. Gabo was between 20 and 30 mg CO2 dm(-2) leaf surface hour(-1) under the conditions used. About 45% of flag-leaf assimilates were translocated to the ear, and only about 12% to the roots and young shoots.On removing the ear, net ...
R W, King, I F, Wardlaw, L T, Evans
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Contribution of photosynthetic rate to growth and reproduction in Amaranthus hybridus
Oecologia, 1998While it is known that genetic variation for photosynthetic and growth traits exists in natural populations, the functional significance of this variation remains unclear, particularly for photosynthetic traits. To test the hypothesis that photosynthetic rate has direct effects on reproduction as well as contributing indirectly to reproduction through ...
A Michele, Arntz +2 more
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Photosynthetic and Respiratory Rates of Sassafras albidum
Forest Science, 1972Abstract Net photosynthesis and transpiration rates indicate that sassafras may be adapted to tolerate the relatively dry and warm environment of old fields as well as to shaded pine plantations. Sassafras photosynthesizes efficiently under high plant water stress and at low light intensities. Forest Sci. 18:218-222.
F. A. Bazzaz +2 more
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Scaling Maximum Growth Rates Across Photosynthetic Organisms
Functional Ecology, 19961. This study provides evidence for the existence of general intrinsic patterns controlling the maximum growth rate of photosynthetic organisms, based on a compilation of data from more than 120 reports, the species ranging from unicellular algae to trees and thick-leaved desert plants. 2.
Nielsen, Søren Laurentius; id_orcid 0000-0003-4309-5153 +3 more
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Variation in leaf photosynthetic rates and yield in strawberries
Journal of Horticultural Science, 1989SummaryVariability in CO2 assimilation rate (A) was measured in seven cultivars on five dates and three cultural systems using the stability analysis of Finlay and Wilkinson. The regression coefficient (b) of net photosynthetic rates was significantly correlated (r = 0.75) with yield, even though mean A was not.
J. F. Hancock +2 more
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Growth rates of photosynthetic microorganisms in laboratory cultures
Archiv f�r Mikrobiologie, 19651. Growth rates, measured under various conditions, are reported for Anacystis nidulans, Schizothrix calcicola, Porphyridium aerugineum, Cyanidium caldarium, Navicula minima, Vischeria stellata, Ankistrodesmus braunii, Chlorella ellipsoidea, and Chlorella pyrenoidosa in terms of the growth constant K during exponential growth.
H. Hoogenhout, J. Amesz
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