Waterlogging Duration and Depth Affect Growth and Photosynthetic Properties of Ginseng

2021 ◽  
Vol 29 (6) ◽  
pp. 409-417
Author(s):  
Su Jeoung Suh ◽  
Ji Won Moon ◽  
In Bok Jang ◽  
Young Chang Kim ◽  
Dong Hwi Kim ◽  
...  
Keyword(s):  
Photosynthetic Properties

scholarly journals Photosynthetic properties of elite erect leaf maize inbred lines and their contribution to seed production improvement

2004 ◽  
pp. 45-56 ◽  
Author(s):  
Cedomir Radenovic ◽  
Zdravko Hojka ◽  
Dragojlo Selakovic ◽  
Miroljub Misovic ◽  
Milovan Pavlov ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Seed Production ◽  
Plant Density ◽  
Inbred Lines ◽  
Thermal Processes ◽  
Critical Temperatures ◽  
Maize Inbred Lines ◽  
Production Improvement ◽  
Photosynthetic Properties ◽  
Erect Leaf

A hypothesis that elite erect leaf maize inbred lines are characterized by properties of an efficient photo-model and that as such are very desirable in increasing the number of plants per unit area (plant density) in the process of seed production has been confirmed in the present study. The properties of the observed elite erect leaf maize inbred lines were based on the effects and characteristics of thermal processes of delayed chlorophyll fluorescence occurring in their thylakoid membranes. The temperature dependence of the delayed chlorophyll fluorescence intensity, the Arrhenius plot for the determination of phase transitions (critical temperatures) and activation energy are the principal parameters of the thermal processes. Based on the obtained results on photosynthetic properties it was also possible to estimate the tolerance and adaptation of elite erect leaf maize inbred lines to high temperatures and drought.

A comprehensive study on carrier mobility and artificial photosynthetic properties in group VI B transition metal dichalcogenide monolayers

2018 ◽  
Vol 6 (18) ◽  
pp. 8693-8704 ◽  
Author(s):  
Ashima Rawat ◽  
Nityasagar Jena ◽  
Dimple Dimple ◽  
Abir De Sarkar
Keyword(s):  
Transition Metal ◽  
Carrier Mobility ◽  
Artificial Photosynthesis ◽  
Transition Metal Dichalcogenide ◽  
Group Vi ◽  
Artificial Photosynthetic ◽  
Photosynthetic Properties ◽  
Comprehensive Study

Artificial photosynthesis in group VI B transition metal dichalcogenide monolayers.

Picophytoplankton; a comparative study of their biochemical composition and photosynthetic properties

2005 ◽  
Vol 53 (1-2) ◽  
pp. 7-24 ◽  
Author(s):  
Marcel J.W. Veldhuis ◽  
Klaas R. Timmermans ◽  
Peter Croot ◽  
Bas van der Wagt
Keyword(s):  
Comparative Study ◽  
Biochemical Composition ◽  
Photosynthetic Properties

Leaf photosynthetic properties and biomass accumulation of selected western Canadian spring wheat cultivars

2011 ◽  
Vol 91 (2) ◽  
pp. 305-314 ◽  
Author(s):  
Cody Chytyk ◽  
Pierre Hucl ◽  
Gordon Gray
Keyword(s):  
Ethanol Production ◽  
Spring Wheat ◽  
Vegetation Index ◽  
Plant Biomass ◽  
Biomass Accumulation ◽  
Biomass Composition ◽  
Quantum Yields ◽  
Cellulose Content ◽  
Wheat Cultivars ◽  
Photosynthetic Properties

Chytyk, C. J., Hucl, P. J. and Gray, G. R. 2011. Leaf photosynthetic properties and biomass accumulation of selected western Canadian spring wheat cultivars. Can. J. Plant Sci. 91: 305–314. Current studies indicate wheat straw as a viable source for the production of cellulosic ethanol. Since photosynthetic performance impacts the overall success of the mature plant, this study aimed to measure the photosynthetic vigour of 11 spring wheat cultivars during field development as well as their biomass composition at maturity to determine which would be optimum for ethanol production. All cultivars had similar maximal quantum yields of photosystem II photochemistry (FV/FM), normalized difference vegetation index and biomass composition in the field. However, differences were observed in photosynthetic rate, with McKenzie having the highest light-saturated maximal rate of CO2 uptake (A max) and apparent quantum yield of CO2 uptake (Φapp CO2), while also having the best water use efficiency. Snowbird was found to have the lowest CO2-compensation point (Γ*) and A max. Upon subjecting wheat samples to photoinhibitory conditions, McKenzie and Kyle were found to be the most resistant and susceptible, respectively, with a difference of 11% in FV/FM. Abundance of xanthophyll pigments were not found to be a contributing cause to differential photoinhibitory resistance as there was not a noticeable difference between cultivars. Although some cultivars were found to have enhanced photosynthetic traits over others, these were slight and did not contribute to changes in plant biomass. However, McKenzie did present a higher cellulose content, which would be favourable for ethanol production.

scholarly journals Growth, ammonium metabolism, and photosynthetic properties of Ulva australis (Chlorophyta) under decreasing pH and ammonium enrichment

PLoS ONE ◽  
2017 ◽  
Vol 12 (11) ◽  
pp. e0188389 ◽  
Author(s):  
Leah B. Reidenbach ◽  
Pamela A. Fernandez ◽  
Pablo P. Leal ◽  
Fanny Noisette ◽  
Christina M. McGraw ◽  
...  
Keyword(s):  
Ulva Australis ◽  
Ammonium Metabolism ◽  
Decreasing Ph ◽  
Photosynthetic Properties

Diverse Optical and Photosynthetic Properties in a Neotropical Dry Forest during the Dry Season: Implications for Remote Estimation of Photosynthesis1

Biotropica ◽  
2005 ◽  
Vol 37 (4) ◽  
pp. 547-560 ◽  
Author(s):  
John A. Gamon ◽  
Kaoru Kitajima ◽  
Stephen S. Mulkey ◽  
Lydia Serrano ◽  
S. Joseph Wright
Keyword(s):  
Dry Season ◽  
Dry Forest ◽  
Neotropical Dry Forest ◽  
Remote Estimation ◽  
Photosynthetic Properties

Responses of Rice and Pea Plants to Hardening With Low Doses of Ultraviolet-B Radiation

1994 ◽  
Vol 21 (5) ◽  
pp. 563 ◽  
Author(s):  
J He ◽  
LK Huang ◽  
WS Chow ◽  
MI Whitecross ◽  
JM Anderson
Keyword(s):  
Oryza Sativa L ◽  
Photosynthetic Apparatus ◽  
Ultraviolet B ◽  
Water Soluble ◽  
Rice Cultivars ◽  
Unit Leaf ◽  
Hardening Treatment ◽  
Uv Absorbing Compounds ◽  
Soluble Enzymes ◽  
Photosynthetic Properties

Responses of two rice cultivars (Oryza sativa L. cw. Er Bai Ai and Lemont) and a pea plant (Pisum sativum L. cv. Greenfeast) to low daily doses of ultraviolet-B (UV-B) radiation were measured to explore mechanisms underlying UV-B tolerance. On hardening of rice plants, cv. Er Bai Ai produced more UV-absorbing compounds than cv. Lemont; however, cv. Lemont produced more water-soluble proteins, which may be related to its greater UV-B tolerance. These responses occurred without apparent deleterious effects on the photosynthetic properties of rice leaves. In contrast, the same hardening doses caused damage to pea plants, as indicated by decreases in photosynthetic quantum yield, maximum photosynthetic capacity and chlorophyll content per unit leaf area, as well as water-soluble and total protein contents. The acquired tolerance of the two rice cultivars to a subsequent high UV-B dose increased with the duration of the hardening treatment. In contrast, the 'hardening' treatment exacerbated the damage to the photosynthetic apparatus of pea plants subsequently exposed to a high UV-B dose. It appears that for defence against UV-B radiation, cv. Er Bai Ai relies more upon the synthesis of UV-absorbing compounds, while cv. Lemont depends more upon the synthesis of protective, water-soluble enzymes; however, neither strategy seems to operate effectively in pea plants.

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