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Displaying items 1 - 10 of 90 start over

1. A distinct seasonal pattern of the ratio of soil respiration to total ecosystem respiration in a spruce-dominated forest

Description:
In the special section: Carbon respired by terrestrial ecosystems.
Author:
Davidson, E.A. , Richardson, A.D. , Savage, K.E. , Hollinger, D.Y.
Subject:
soil respiration , carbon dioxide , gas emissions , soil microorganisms , biological activity in soil , coniferous forests , forest soils , biogeochemical cycles , seasonal variation , soil temperature , air temperature , spring , summer , forest litter , biodegradation , Maine
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

2. Adverse high temperature effects on pollen viability, seed-set, seed yield and harvest index of grain-sorghum [Sorghum bicolor (L.) Moench] are more severe at elevated carbon dioxide due to higher tissue temperatures

Description:
Includes references
Author:
Prasad, P.V.V. , Boote, K.J. , Allen, L.H. Jr.
Subject:
Sorghum bicolor , grain sorghum , grain crops , air temperature , heat stress , heat injury , pollen , viability , plant reproduction , seed set , grain yield , harvest index , carbon dioxide , elevated atmospheric gases , temperature , climate change , cultivars , vegetative growth , yield components
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

3. Air temperature modifies the size-enhancing effects of atmospheric CO2 enrichment on sour orange tree leaves

Description:
Includes references.
Author:
Idso, S.B. , Kimball, B.A. , Hendrix, D.L.
Subject:
Citrus aurantium , leaf area , dry matter accumulation , starch , carbohydrate metabolism , air temperature , ambient temperature , carbon dioxide
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1993

4. Alterations in the production and concentration of selected alkaloids as a function of rising atmospheric carbon dioxide and air temperature: implications for ethno-pharmacology

Description:
Includes references
Author:
Ziska, L.H. , Emche, S.D. , Johnson, E.L. , George, K. , Reed, D.R. , Sicher, R.C.
Subject:
Nicotiana tabacum , Datura stramonium , alkaloids , nicotine , scopolamine , atropine , biosynthesis , chemical constituents of plants , climate change , carbon dioxide , elevated atmospheric gases , air temperature , global warming , drug crops
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

5. Approaches to Modeling Potato Leaf Appearance Rate

Description:
Includes references
Author:
Fleisher, D.H. , Shillito, R.M. , Timlin, D.J. , Kim, S.H. , Reddy, V.R.
Subject:
Solanum tuberosum , potatoes , leaves , phenology , growth models , heat sums , air temperature , carbon dioxide , elevated atmospheric gases , field experimentation , equations , mathematical models
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

6. BVOC emissions, photosynthetic characteristics and changes in chloroplast ultrastructure of Platanus orientalis L. exposed to elevated CO2 and high temperature

Description:
Includes references
Author:
Velikova, Violeta , Tsonev, Tsonko , Barta, Csengele , Centritto, Mauro , Koleva, Dimitrina , Stefanova, Miroslava , Busheva, Mira , Loreto, Francesco
Subject:
elevated atmospheric gases , carbon dioxide , air temperature , Platanus orientalis , methanol , volatile organic compounds , air pollution , gas emissions , climate change , plant damage , chloroplasts , ultrastructure , photosynthesis , heat tolerance
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2009

7. Canopy Gas Exchange Measurements of Cotton in an Open System

Description:
Includes references
Author:
Baker, Jeffrey T. , Van Pelt, Scott , Gitz, Dennis C. , Payton, Paxton , Lascano, Robert Joseph , McMichael, Bobbie
Subject:
Gossypium hirsutum , cotton , canopy , gas exchange , measurement , new methods , water vapor , carbon dioxide , transpiration , net assimilation rate , data collection , air temperature , equations , leaf area , soil water content , irrigation
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2009

8. Carbon dioxide and global temperature: what the data show

Description:
Includes references.
Author:
Idso, Sherwood B.
Subject:
General Circulation Models , air temperature , atmosphere , atmospheric circulation , carbon dioxide , climate , crop production , elevated atmospheric gases , latitude , mathematical models , photosynthesis , population growth , prediction , summer , surface temperature , transpiration , water use efficiency , winter
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1983

9. Carbon dioxide and high temperature effects on growth of young orange trees in a humid, subtropical environment

Description:
Includes references
Author:
Allen, Leon Hartwell , Vu, Joseph C.V.
Subject:
Citrus sinensis , oranges , fruit trees , carbon dioxide , air temperature , tree growth , climatic factors , elevated atmospheric gases , greenhouse experimentation , dry matter accumulation , root systems , shoots , leaves , wood , relative humidity , subtropics , semiarid zones , vapor pressure , dry matter partitioning , photosynthesis , Florida , Arizona
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2009

10. Carbon dioxide and temperature effects on forage dry matter production

Description:
Includes references
Author:
Newman, Y.C. , Sollenberger, L.E. , Boote, K.J. , Allen, L.H. Jr. , Littell, R.C.
Subject:
Arachis glabrata , Paspalum notatum , carbon dioxide , air temperature , climate change , grasslands , dry matter accumulation , yields , forage
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2001