Results 31 to 40 of about 149,739 (305)
The development of new approaches for sustaining soil quality, leaf health, and maize productivity are imperative in light of water deficit and soil salinity.
Emad M. Hafez +7 more
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Photosynthetic and Respiratory Rates of Two Psychrophilic Diatoms [PDF]
The photosynthetic rates in two psychrophilic diatoms, Chaetoceros sp. strain K3-10 and Nitzschia sp. K3-3 for cells grown at 0 degrees C were 8 to 10 microliters O(2) evolved per milligram dry weight per hour, and 10-fold higher, about 80 for cells grown at 10 degrees C.
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Leaf Maximum Photosynthetic Rate and Venation Are Linked by Hydraulics [PDF]
Abstract Leaf veins are almost ubiquitous across the range of terrestrial plant diversity, yet their influence on leaf photosynthetic performance remains uncertain. We show here that specific physical attributes of the vascular plumbing network are key limiters of the hydraulic and photosynthetic proficiency of any leaf. Following the
Tim J, Brodribb +2 more
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Light absorptance of algal films for photosynthetic rate determinations
AbstractA Reflectance Absorptance Transmittance (RAT) meter, developed for routine measurements of Abtλ nm on leaves, was used to measure absorptance of algal films mounted on glass fibre filter disks for use in PAM (Pulse Amplitude Modulation) fluorometry. Absorptance readings (Abtλ nm) are essential to quantitate the photosynthetic electron transport
Raymond J. RITCHIE +2 more
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The coupling of photosynthesis and transpiration in plant leaves forms the basis of carbon–water coupling in terrestrial ecosystems. Previous studies have attributed the coupling of leaf photosynthesis and transpiration to joint stomata control, but they
Qian Li +6 more
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Inorganic carbon and pH dependency of photosynthetic rates in Trichodesmium [PDF]
Increasing atmospheric CO2 concentrations are leading to increases in dissolved CO2 and HCO3- concentrations and decreases in pH and CO32- in the world's oceans. There remain many uncertainties as to the magnitude of biological responses of key organisms to these chemical changes.
Tobias G Boatman +3 more
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Photosynthetic and transpiration rates of rice leaf were measured under light with an intensity fluctuating in a wide range of frequencies (2.8 × 10–4∼4 Hz). The time course of photosynthetic rate differed with the frequency.
Seiichi Nishimura +3 more
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As an important economical plant, Zanthoxylum bungeanum is widely cultivated in arid and semi-arid areas. The studies associated with photosynthesis under drought stress were widely carried out, but not yet in Z. bungeanum.
Haichao Hu +16 more
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Despite the wide uses of potted plants, information on how pot size affects plant photosynthetic matter production is still considerably limited.
Minobu Kasai +2 more
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(Aims) To clarify the mechanisms though which dense planting could alleviate the negative effect of the reducing N rate on yield, (Methods) an experiment with four nitrogen levels—0 (N0), 120 (N1), 180 (N2) and 240 (N3) kg N ha−1—and three plant ...
Xiangqian Zhang +4 more
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