scholarly journals Short-term effects of light quality on leaf gas exchange and hydraulic properties of silver birch (Betula pendula)

2017 ◽  
Vol 37 (9) ◽  
pp. 1218-1228 ◽  
Author(s):  
Aigar Niglas ◽  
Kaisa Papp ◽  
Maciej Sękiewicz ◽  
Arne Sellin
Keyword(s):  
Gas Exchange ◽  
Betula Pendula ◽  
Hydraulic Properties ◽  
Light Quality ◽  
Leaf Gas Exchange ◽  
Silver Birch ◽  
Short Term ◽  
Short Term Effects

scholarly journals Impact of light quality on leaf and shoot hydraulic properties: a case study in silver birch (Betula pendula)

2011 ◽  
Vol 34 (7) ◽  
pp. 1079-1087 ◽  
Author(s):  
ARNE SELLIN ◽  
LAWREN SACK ◽  
EELE ÕUNAPUU ◽  
ANNIKA KARUSION
Keyword(s):  
Betula Pendula ◽  
Hydraulic Properties ◽  
Light Quality ◽  
Silver Birch

Short-term effects of biochar and gypsum on soil hydraulic properties and sodicity in a saline-alkali soil

Pedosphere ◽  
2020 ◽  
Vol 30 (5) ◽  
pp. 694-702 ◽  
Author(s):  
Yue ZHANG ◽  
Jingsong YANG ◽  
Rongjiang YAO ◽  
Xiangping WANG ◽  
Wenping XIE
Keyword(s):  
Hydraulic Properties ◽  
Soil Hydraulic Properties ◽  
Short Term ◽  
Alkali Soil ◽  
Soil Hydraulic ◽  
Short Term Effects

scholarly journals Short-Term Effects of CO2 on Gas Exchange of Leaves of Bigtooth Aspen (Populus grandidentata) in the Field

1984 ◽  
Vol 75 (4) ◽  
pp. 1022-1026 ◽  
Author(s):  
Thomas W. Jurik ◽  
James A. Weber ◽  
David M. Gates
Keyword(s):  
Gas Exchange ◽  
Short Term ◽  
Populus Grandidentata ◽  
Short Term Effects

Humidity-driven changes in growth rate, photosynthetic capacity, hydraulic properties and other functional traits in silver birch (Betula pendula)

2013 ◽  
Vol 28 (3) ◽  
pp. 523-535 ◽  
Author(s):  
Arne Sellin ◽  
Arvo Tullus ◽  
Aigar Niglas ◽  
Eele Õunapuu ◽  
Annika Karusion ◽  
...  
Keyword(s):  
Growth Rate ◽  
Functional Traits ◽  
Betula Pendula ◽  
Hydraulic Properties ◽  
Photosynthetic Capacity ◽  
Silver Birch

scholarly journals Determining the Effects of Abscisic Acid Drenches on Evapotranspiration and Leaf Gas Exchange of Tomato

HortScience ◽  
2011 ◽  
Vol 46 (11) ◽  
pp. 1512-1517 ◽  
Author(s):  
Manuel G. Astacio ◽  
Marc W. van Iersel
Keyword(s):  
Abscisic Acid ◽  
Gas Exchange ◽  
Shelf Life ◽  
Water Use ◽  
Water Loss ◽  
Leaf Gas Exchange ◽  
Short Term ◽  
Leaf Physiology ◽  
Rate Dependent ◽  
Short Period

It is common for plants in the retail market to receive inadequate water and lose aesthetic value within a short period of time. The plant hormone abscisic acid (ABA) is naturally produced in response to drought conditions and reduces transpiration (E) by closing the stomata. Thus, ABA may lengthen shelf life of retail plants by reducing water loss. Two studies were conducted to look at effects of ABA on plant water use and shelf life over a 13-day period and short-term effects of ABA on leaf physiology. The objective of the short-term study was to determine how quickly 100-mL drenches of 250 mg·L−1 ABA solution affect leaf gas exchange of tomatoes (Solanum lycopersicum ‘Supersweet 100’). ABA drenches reduced stomatal conductance (gS), E, and photosynthetic rate (Pn) within 60 min. After 2 h, E, gs, and Pn were reduced by 66%, 72%, and 55% respectively, compared with the control plants. In the13-day study, ABA was applied to tomatoes as a 100-mL drench at concentrations ranging from 0 to 1000 mg·L−1 and ABA effects on water use and time to wilting were quantified. Half of the plants were not watered after ABA application, whereas the other plants were watered as needed. In general, higher ABA concentrations resulted in less water use by both well-watered and unwatered plants. ABA delayed wilting of unwatered plants by 2 to 8 days (dependent on the dose) as compared with control plants. In well-watered plants, ABA reduced daily evapotranspiration (ET) for 5 days, after which there were no further ABA effects. Negative side effects of the ABA application were rate-dependent chlorosis of the lower leaves followed by leaf abscission. These studies demonstrate that ABA drenches rapidly close stomata, limit transpirational water loss, and can extend the shelf life of retail plants by up to 8 days, which exemplifies its potential as a commercially applied plant growth regulator.

Differences in growth and gas exchange between southern and northern provenances of silver birch (Betula pendula Roth) in northern Europe

2019 ◽  
Vol 40 (2) ◽  
pp. 198-214 ◽  
Author(s):  
Antti Tenkanen ◽  
Sarita Keski-Saari ◽  
Jarkko Salojärvi ◽  
Elina Oksanen ◽  
Markku Keinänen ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Water Use ◽  
Betula Pendula ◽  
Net Photosynthesis ◽  
Height Growth ◽  
Silver Birch ◽  
Short Shoot ◽  
Photosynthetic Gas Exchange ◽  
Betula Pendula Roth ◽  
Intrinsic Water Use Efficiency

Abstract Due to its ubiquity across northern latitudes, silver birch (Betula pendula Roth) is an attractive model species for studying geographical trait variation and acclimation capacity. Six birch provenances from 60 to 67°N across Finland were grown in a common garden and studied for provenance and genotype variation. We looked for differences in height growth, photosynthetic gas exchange and chlorophyll content index (CCI) and compared the gas exchange of early and late leaves on short and long shoots, respectively. The provenances stratified into southern and northern groups. Northern provenances attained less height growth increment and had higher stomatal conductance (gs) and lower intrinsic water-use efficiency (WUE, Anet/gs) than southern provenances, whereas net photosynthesis (Anet) or CCI did not show clear grouping. Short shoot leaves had lower gs and higher WUE than long shoot leaves in all provenances, but there was no difference in Anet between shoot types. The separation of the provenances into two groups according to their physiological responses might reflect the evolutionary history of B. pendula. Latitudinal differences in gas exchange and water use traits can have plausible consequences for global carbon and water fluxes in a warming climate.

Short-term effects of rice straw biochar on hydraulic properties and aggregate stability of an Acrisol

Soil Research ◽  
2021 ◽  
Author(s):  
Nathaniel Parker ◽  
Wim M. Cornelis ◽  
Kwame Agyei Frimpong ◽  
Eric Oppong Danso ◽  
Enoch Bessah ◽  
...  
Keyword(s):  
Rice Straw ◽  
Hydraulic Properties ◽  
Aggregate Stability ◽  
Short Term ◽  
Rice Straw Biochar ◽  
Short Term Effects

Assimilation and release of internal carbon dioxide by woody plant shoots

1970 ◽  
Vol 48 (7) ◽  
pp. 1351-1354 ◽  
Author(s):  
W. żelawski ◽  
F. P. Riech ◽  
R. G. Stanley
Keyword(s):  
Gas Exchange ◽  
Woody Plants ◽  
Woody Plant ◽  
Leaf Gas Exchange ◽  
Soluble Sugars ◽  
Pinus Elliottii ◽  
Short Term ◽  
Transpiration Stream ◽  
Pine Seedlings ◽  
Plant Shoots

This study was undertaken to determine whether tree stems can reassimilate internal CO2 produced by respiration or whether this CO2 is evolved and could possibly interfere with measurements of leaf gas exchange. Radioactive CO2 was added to the stem transpiration stream of slash pine seedlings (Pinus elliottii Engelm.) and the distribution of 14C studied in shoots and needles exposed to dark and light conditions.Photosynthesis decreases the amount of internal CO2 evolved. Large amounts of 14CO2 from the transpiration stream are incorporated into organic compounds of needles and stems, primarily into ethanol-soluble sugars and organic acids, and in time, small amounts of 14C occur in the ethanol-insoluble materials.These results indicate that respiratory CO2 transported in the transpiration stream of woody plants can be reused in photosynthesis or possibly other metabolic processes. Internal CO2 is also evolved to the atmosphere in large amounts, but related research indicates it diffuses primarily out of the stem tissue not the needles. The evolved CO2 supplied from stems does not significantly affect short term measurements of needle gas exchange in pine seedlings.

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