scholarly journals Growth and Photosynthetic Responses of Cuttings of a Hybrid Larch (Larix gmelinii var. japonica x L. kaempferi) to Elevated Ozone and/or Carbon Dioxide

2012 ◽  
Vol 6 (2) ◽  
pp. 104-110 ◽  
Author(s):  
Takayoshi Koike ◽  
Qiaozhi Mao ◽  
Naoki Inada ◽  
Korin Kawaguchi ◽  
Yasutomo Hoshika ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Larix Gmelinii ◽  
Hybrid Larch ◽  
Elevated Ozone ◽  
Photosynthetic Responses

Growth and visible injuries of four Centaurea jacea L. ecotypes exposed to elevated ozone and carbon dioxide

2006 ◽  
Vol 58 (1-3) ◽  
pp. 287-298 ◽  
Author(s):  
Kaisa Rämö ◽  
Hannele Slotte ◽  
Teri Kanerva ◽  
Katinka Ojanperä ◽  
Sirkku Manninen
Keyword(s):  
Carbon Dioxide ◽  
Elevated Ozone ◽  
Centaurea Jacea

Age trends in the genetic parameters of wood density and the relationship with growth rates in hybrid larch (Larix gmelinii var. japonica × L. kaempferi) F1

2006 ◽  
Vol 11 (3) ◽  
pp. 157-163 ◽  
Author(s):  
Takaaki Fujimoto ◽  
Kazuhito Kita ◽  
Kazuko Uchiyama ◽  
Makoto Kuromaru ◽  
Hisashi Akutsu ◽  
...  
Keyword(s):  
Wood Density ◽  
Growth Rates ◽  
Genetic Parameters ◽  
Larix Gmelinii ◽  
Hybrid Larch ◽  
Age Trends ◽  
The Relationship

Growth and photosynthetic responses of four landscape shrub species to elevated ozone

2012 ◽  
Vol 50 (1) ◽  
pp. 67-76 ◽  
Author(s):  
L. Zhang ◽  
B. Y. Su ◽  
H. Xu ◽  
Y. G. Li
Keyword(s):  
Shrub Species ◽  
Elevated Ozone ◽  
Photosynthetic Responses

Smoke Production Ability during Combustion of the Four Conifer-Tree Species in Hei Long Jiang Province

2011 ◽  
Vol 183-185 ◽  
pp. 1389-1394
Author(s):  
Long Sun ◽  
Hai Qing Hu ◽  
Lin Ju
Keyword(s):  
Carbon Dioxide ◽  
Tree Species ◽  
Thermal Characteristics ◽  
Larix Gmelinii ◽  
Pinus Koraiensis ◽  
Calorimetric Analysis ◽  
Inhibiting Effect ◽  
Smoke Production ◽  
Conifer Tree ◽  
Carbon Dioxide Co2

The combustibility of four conifer-tree species in Xiaoxing’an Mountain, Heilongjiang Province was studied by cone calorimetric analysis. The four species were Pinus koraiensis Sieb.et Zucc、Pinus sylvestris var.mongolica Litv、Picea koraiensis Nakai、Larix gmelinii Rupr.. The thermal characteristics of leaves and barks, including smoke production rate(SPR)、specific extinction area(SEA)、the concentration of carbon dioxide (CO2)、the production of carbon dioxide ( PCO2 )、the concentration of carbon dioxide (CO)、the production of carbon dioxide ( PCO )were tested and recorded simultaneously.Th results showed that ,at a heat reflux of 50 kW•m-2, the values of SPR , SEA , the concentration of carbon dioxide (CO2) and the production of carbon dioxide (PCO) of Larix gmelinii Rupr. t had strong smoke inhibiting effect. Both Larix gmelinii Rupr. and Pinus koraiensis Sieb.et Zucc had strong smoke inhibiting effect, and Larix gmelinii Rupr. and Pinus koraiensis Sieb.et Zucc was most recommended as fire resistance species for fire-preventing forest belts.

Carbon Dioxide Exchange in Response to Change of Environment and to Defoliation in a Tobacco Crop

1980 ◽  
Vol 7 (4) ◽  
pp. 473 ◽  
Author(s):  
DM Whitfield ◽  
DJ Connor ◽  
PJM Sale
Keyword(s):  
Carbon Dioxide ◽  
Dark Respiration ◽  
Leaf Age ◽  
Early Flowering ◽  
Carbon Dioxide Exchange ◽  
Long Term Effects ◽  
Short Term ◽  
Photosynthetic Responses ◽  
Response To Change ◽  
Response To Temperature

Rates of carbon dioxide exchange of field-grown tobacco crops at early flowering and maturity were measured using a pair of large closed-system field chambers. Photosynthetic responses to irradiance and temperature were investigated on both occasions. Rate of dark respiration and its response to temperature were measured during the night. Defoliation treatments were employed to disrupt the correlation between leaf age and light environment in the canopy. In these experiments, the short-term photosynthetic response to irradiance was determined for crops that were progressively defoliated upwards or downwards. Long- term effects of varying intensities of downward defoliation were also investigated. Maximum photosynthetic rates of 3.7 g CO2 m-2 h-1 were achieved at early flowering. These had fallen to 1.9 g CO2 m-2 h-1at maturity. Maximum rates occurred at an irradiance of approximately 700 W m-2. Short-term shifts in temperature in the range 10-32°C had little effect during the day, but dark respiration was strongly dependent on temperature. Defoliation experiments demonstrated that lower leaves retained a significant potential for photosynthesis but their contri- bution to the total exchange of CO2 of mature crops was only small. This was attributed in part to the poorer light regime in the lower canopy. Results are discussed in the context of the development of yield and quality in flue-cured tobacco.

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