scholarly journals Effects of elevated atmospheric CO2 and increased tidal flooding on leaf gas-exchange parameters of two common mangrove species: Avicennia marina and Rhizophora stylosa

2018 ◽  
Vol 138 (2) ◽  
pp. 249-260 ◽  
Author(s):  
Adrien Jacotot ◽  
Cyril Marchand ◽  
Simon Gensous ◽  
Michel Allenbach
Keyword(s):  
Gas Exchange ◽  
Leaf Gas Exchange ◽  
Avicennia Marina ◽  
Atmospheric Co2 ◽  
Gas Exchange Parameters ◽  
Mangrove Species ◽  
Rhizophora Stylosa ◽  
Tidal Flooding ◽  
Elevated Atmospheric Co2 ◽  
Exchange Parameters

scholarly journals Growth and Photosynthetic Response of Two Persimmon Rootstocks (Diospyros kaki and D. virginiana) under Different Salinity Levels

2014 ◽  
Vol 42 (2) ◽  
pp. 386-391 ◽  
Author(s):  
Meral INCESU ◽  
Berken CIMEN ◽  
Turgut YESILOGLU ◽  
Bilge YILMAZ
Keyword(s):  
Gas Exchange ◽  
Leaf Gas Exchange ◽  
Chlorophyll Concentration ◽  
Dry Mass ◽  
Diospyros Kaki ◽  
Gas Exchange Parameters ◽  
Leaf Chlorophyll ◽  
Salinity Levels ◽  
Leaf Chlorophyll Concentration ◽  
Exchange Parameters

Salinity continues to be a major factor in reduced crop productivity and profit in many arid and semiarid regions. Seedlings of Diospyros kaki Thunb. and D. virginiana L. are commonly used as rootstock in persimmon cultivation. In this study we have evaluated the effects of different salinity levels on photosynthetic capacity and plant development of D. kaki and D. virginiana. Salinity was provided by adding 50 mM, 75 mM and 100 mM NaCl to nutrient solution. In order to determine the effects of different salinity levels on plant growth, leaf number, plant height, shoot and root dry mass were recorded. Besides leaf Na, Cl, K and Ca concentrations were determined. Also leaf chlorophyll concentration, chlorophyll fluorescence (Fv’/Fm’) and leaf gas exchange parameters including leaf net photosynthetic rate (PN), stomatal conductance (gS), leaf transpiration rate (E), and CO2 substomatal concentration (Ci) were investigated. Significant decrease of leaf number, shoot length and plant dry mass by increasing salinity levels was observed in both rootstocks. D. virginiana was less affected in terms of plant growth under salinity stress. Leaf chlorophyll concentration reduction was higher in the leaves of D. kaki in comparison to D. virginiana in 100 mM NaCl treatment. By increasing salinity levels PN, gS and E markedly decreased in both rootstocks and D. kaki was more affected from salinity in terms of leaf gas exchange parameters. In addition there was no significant difference but slight decreases were recorded in leaf chlorophyll fluorescences of both rootstocks.

Elevated atmospheric CO2 and drought effects on leaf gas exchange properties of barley

2011 ◽  
Vol 144 (1) ◽  
pp. 390-404 ◽  
Author(s):  
Gerard W. Wall ◽  
Richard L. Garcia ◽  
Frank Wechsung ◽  
Bruce A. Kimball
Keyword(s):  
Gas Exchange ◽  
Leaf Gas Exchange ◽  
Atmospheric Co2 ◽  
Elevated Atmospheric Co2 ◽  
Exchange Properties ◽  
Drought Effects

scholarly journals The effect of the application of the biological control agent EM1 on gas exchange parameters and productivity of Pisum sativum L. infected with Fusarium oxysporum Schlecht.

2012 ◽  
Vol 63 (2) ◽  
pp. 105-115 ◽  
Author(s):  
Adam Okorski ◽  
Jacek Olszewski ◽  
Katarzyna Głowacka ◽  
Sylwia Okorska ◽  
Agnieszka Pszczółkowska
Keyword(s):  
Gas Exchange ◽  
Exchange Rates ◽  
Fusarium Wilt ◽  
Chemical Control ◽  
Foliar Application ◽  
Biological Control Agent ◽  
Leaf Gas Exchange ◽  
Growth Conditions ◽  
Gas Exchange Parameters ◽  
Exchange Parameters

A pot experiment on different methods of EM 1 application was conducted in the period 2002-2004. The study was carried out under controlled growth conditions. The experimental factor was the method of EM1 application. Before application, the biological preparation EM1 was propagated as recommended by the manufacturer (Greenland). The health status of the aboveground parts of 'Ramrod' pea plants was estimated at the flowering stage. The assessment of pea leaf gas exchange parameters (An, E, Gs, and Ci) was made using a LI-Cor 6400 Portable Photosynthesis System. Soil application of EM1 combined with chemical control contributed to inhibiting Fusarium wilt of pea. Foliar application of EM1 combined with chemical control increased all gas exchange rates of pea leaves. Fusarium wilt of pea insignificantly decreased all gas exchange rates of pea leaves and the number of seeds per pod. The best method of EM1 application was soil treatment combined with chemical control, which increased all yield-related morphometric parameters of pea.

Vertical variation in leaf gas exchange parameters for a Southeast Asian tropical rainforest in Peninsular Malaysia

2012 ◽  
Vol 125 (6) ◽  
pp. 735-748 ◽  
Author(s):  
Yoshiko Kosugi ◽  
Satoru Takanashi ◽  
Naoto Yokoyama ◽  
Elizabeth Philip ◽  
Mai Kamakura
Keyword(s):  
Gas Exchange ◽  
Tropical Rainforest ◽  
Leaf Gas Exchange ◽  
Southeast Asian ◽  
Peninsular Malaysia ◽  
Gas Exchange Parameters ◽  
Vertical Variation ◽  
Exchange Parameters

Leaf Gas Exchange Parameters Vary among Cotton Genotypes

Crop Science ◽  
1994 ◽  
Vol 34 (3) ◽  
pp. 700-705 ◽  
Author(s):  
W. T. Pettigrew ◽  
W. R. Meredith
Keyword(s):  
Gas Exchange ◽  
Leaf Gas Exchange ◽  
Gas Exchange Parameters ◽  
Cotton Genotypes ◽  
Exchange Parameters
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