Results 261 to 270 of about 154,725 (310)

Influence of vapor pressure deficit on vegetation growth in China

Journal of Arid Land
Chuanhua Li, Liang Zhang, Hong Wang, Lixiao Pend, Peng Yin, Peidong Miao   +5 more
semanticscholar   +2 more sources

A vapor pressure deficit effect on crop canopy photosynthesis

Photosynthesis Research, 1990
Canopy CO2-exchange rates (CER), air temperatures, and dew points were measured throughout ten days during the 1987 growing season for cotton (Gossypium hirsutum L.), grain sorghum [Sorghum bicolor (L) Moench], and five soybean [Glycine max (L) Merr.] cultivars, and throughout seven days in 1988, on maize (Zea maize L.).
W T, Pettigrew, J D, Hesketh, D B, Peters, J T, Woolley   +3 more
openaire   +2 more sources

Time Lag of Stem Water Deficit in Response to Increased Vapor Pressure Deficit

Forest Science, 2023
Abstract Vapor pressure deficit (VPD) shows a gradually increasing trend that forces trees to produce ecological memory with time-delay characteristics to drought year by year. The reversible stem diameter variation of trees can serve as an indicator for tree water status.
Yuan Tian, Xuan Liu, Xin Zhang, Sa Rula, Zhibing Wan, Hanqing Zhao, Qiuliang Zhang   +6 more
openaire   +1 more source

Vapor Pressure Deficit Control Strategies for Plant Production

IFAC Proceedings Volumes, 1998
Abstract Research to develop control strategies to implement vapor pressure deficit (VPD) control for plant propagation is presented. Recently designed and constructed lowcost chambers serve as the platform for this discussion, although results can be generalized to any other equipment in which both air temperature and humidity can be simultaneously ...
R.S. Gates, S. Zolnier, J. Buxton
openaire   +1 more source

Effects of soil moisture, net radiation, and atmospheric vapor pressure deficit on surface evaporation fraction at a semi-arid grass site.

Science of the Total Environment, 2022
Surface energy partitioning is one of the most important aspects of the land-atmosphere coupling. The objective of this study is to examine how soil moisture (SM) and atmospheric conditions (net radiation, Rn and vapor pressure deficit, VPD) affect ...
B. Tong, Jianping Guo, Hui Xu, Yinjun Wang, Huirong Li, L. Bian, Jian Zhang, Shenghui Zhou   +7 more
semanticscholar   +1 more source

Vapor Pressure Deficit Control Algorithm for Plant Studies

IFAC Proceedings Volumes, 2000
Abstract A crop to air Vapor Pressure Deficit (VP Dcrop-air ) control algorithm was developed from analysis of energy balances on bedding plants in a sunlit plant growth chamber (SPGC). The control algorithm was implemented in the SPGC using a computer control interface, and system tests were conducted to determine the performance of individual ...
R.S. Gates, C.A. Mach
openaire   +1 more source

The stomatal response to vapor pressure deficit drives the apparent temperature response of photosynthesis in tropical forests.

New Phytologist
As temperature rises, net carbon uptake in tropical forests decreases, but the underlying mechanisms are not well understood. High temperatures can limit photosynthesis directly, for example by reducing biochemical capacity, or indirectly through rising ...
M. Slot, Sami W. Rifai, C. E. Eze, K. Winter   +3 more
semanticscholar   +1 more source

Relative Humidity or Vapor Pressure Deficit

Ecology, 1936
Being well aware of the profound importance of evaporation as a factor affecting plants and animals, biologists are careful to regulate or observe it in experimental work. Evaporation is a dynamic process and represents the net difference between the number.
openaire   +1 more source

Response of maize (Zea mays L.) towards vapor pressure deficit

Environmental and Experimental Botany, 2021
Abstract The changing atmospheric wetness and dryness in the background of global warming is an important issue for maize cultivation. The objective of this study was to evaluate the physiological response of maize towards vapor pressure deficits (VPDs).
Ram Kumar Shrestha, Ping Lei, Dan Shi, Mohammad Hanif Hashimi, Sheng Wang, Deti Xie, Jiupai Ni, Chengsheng Ni   +7 more
openaire   +1 more source

Psychrometric and ventilation constraints for vapor pressure deficit control

Computers and Electronics in Agriculture, 2000
Constraints on air temperature, dewpoint temperature and ventilation rate in plant growth and propagation chambers under vapor pressure deficit (VPD) control are presented. These constraints apply to any controlled environment space subjected to significant radiation in which both air temperature and humidity can be simultaneously manipulated. Defining
S Zolnier, R.S Gates, J Buxton, C Mach
openaire   +1 more source