Results 21 to 30 of about 34,030 (291)

Leaf and Community Photosynthetic Carbon Assimilation of Alpine Plants Under in-situ Warming

Frontiers in Plant Science, 2021
The Tibetan Plateau is highly sensitive to elevated temperatures and has experienced significant climate warming in the last decades. While climate warming is known to greatly impact alpine ecosystems, the gas exchange responses at the leaf and community
Zijuan Zhou, Peixi Su, Xiukun Wu, Rui Shi, Xinjing Ding   +4 more
doaj   +1 more source

Evaluating sago palm (Metroxylon sagu Rottb.) photosynthetic performance in waterlogged conditions: utilizing pulse-amplitude-modulated (PAM) fluorometry as a waterlogging stress indicator

Journal of the Saudi Society of Agricultural Sciences, 2020
Photosynthetic performance of sago palm (Metroxylon sagu Rottb.) was evaluated in normal and waterlogged conditions. Net assimilation rate (AN), light response curve of net assimilation rate (AN/I) and pulse-amplitude modulation fluorescence vs ...
A. Azhar, D. Makihara, H. Naito, H. Ehara   +3 more
doaj   +1 more source

CHANGES WITH AGE IN THE PHOTOSYNTHETIC AND RESPIRATORY COMPONENTS OF THE NET ASSIMILATION RATES OF SUGAR BEET AND WHEAT [PDF]

New Phytologist, 1966
SummaryThe net assimilation rates (E) of sugar beet and wheat growing in a controlled environment, and their components, the rates of photosynthesis (P) and respiration (R) of the whole plant per unit leaf area, were determined at intervals by a method described previously that depends on measuring the decrease in E when photosynthesis is prevented on ...
Watson, D. J., Wilson, J. H., Ford, M. A., French, S. A.   +3 more
openaire   +1 more source

Comparison of basic photosynthetic characteristics between exotic invasive weed Solidago canadensis and its companion species

浙江大学学报. 农业与生命科学版, 2007
Photosynthetic indices of Solidago canadensis and its companion species were determined using LCA-4 portable photosynthesis and transpiration system (ADC, England). Results were as follows: (i) The actual maximal net photosynthetic rate of S.
HU Tian-yin, FANG Fang, GUO Shui-liang, JIANG Hua-wei   +3 more
doaj   +1 more source

Mulched drip irrigation and maize straw biochar increase peanut yield by regulating soil nitrogen, photosynthesis and root in arid regions

Agricultural Water Management, 2023
Biochar has been increasingly recognized as a valuable soil conditioner, which is beneficial to peanut yield improvement. We conducted a three-year field experiment to investigate the effect of biochar applied at three rates (0 t ha−1 (B0), 24 t ha−1 (B1)
Junxiao Zhang, Xiaowei Liu, Qi Wu, Yuanze Qiu, Daocai Chi, Guimin Xia, Emmanuel Arthur   +6 more
doaj   +1 more source

Growth and Net Photosynthetic Rate of Tomato Plantlets during Photoautotrophic and Photomixotrophic Micropropagation [PDF]

HortScience, 2001
Nodal explants of tomato ( Lycopersicon esculentum Mill.) were cultured in vitro to evaluate the effects of sugar concentration, photosynthetic photon flux ( PPF ), CO 2 concentration, ventilation rate of the ...
Chieri Kubota, Natsuko Kakizaki, Toyoki Kozai, Koichi Kasahara, Jun Nemoto   +4 more
openaire   +1 more source

Net Photosynthetic Rates and Growth of Strawberry after Partial Defoliation

HortScience, 1988
Abstract Leaf loss increased net photosynthesis (Pn) or delayed senescence of the remaining leaves in several plant species (2, 3, 7, 8). Strawberries are commonly defoliated during planting and after fruiting. The objective of this study was to determine the effects of partial defoliation on Pn rates and growth of the strawberry.
Karen L. Kerkhoff, Jerry M. Williams, John A. Barden   +2 more
openaire   +1 more source

Phenotypes and photosynthetic characteristics of soybeans and peanuts in response to shading

浙江大学学报. 农业与生命科学版, 2023
Shading directly affects the growth and development of crops, which includes decreases in light intensity and changes in light quality. An indoor pot experiment was conducted with soybeans and peanuts under three light environments, including normal ...
LU Zhaohong, TAN Tingting, TENG Yiming, YANG Wenyu, YANG Feng   +4 more
doaj   +1 more source

Responses of photosynthetic characteristics and growth in rice and winter wheat to different elevated CO2 concentrations

Photosynthetica, 2020
This study investigated the effects of different elevated CO2 concentrations [ambient CO2 concentration (CK), CK plus 40 μmol mol-1 (T1), CK plus 200 μmol mol-1 (T2)] on photosynthetic characteristics and growth of rice (Oryza sativa L.) and winter ...
C. LIU, Z.H. HU, L.F. YU, S.T. CHEN, X.M. LIU   +4 more
doaj   +1 more source

Net Photosynthetic and Evapotranspiration Rates in Situ of Tomato and Lettuce Plug Sheets in the Greenhouse [PDF]

HortScience, 1995
Net photosynthetic and evapotranspiration rates of tomato (LAI = 2.3) and lettuce (LAI = 6.6) plug sheets were estimated based on measurements of the weight of plug sheets and vertical profiles of CO2 concentration above the plug sheets. The measurements were continued in situ for several days in a greenhouse when plugs were at transplant stage.
Toshio Shibuya, Yoshiaki Kitaya, Toyoki Kozai, Masaichi Nakahara   +3 more
openaire   +1 more source