Results 31 to 40 of about 239,991 (317)

SPAD-502 and atLEAF CHL PLUS values provide good estimation of the chlorophyll content for Hevea brasiliensis Müll. Arg. Leaves [PDF]

, 2020
Measurement of chlorophyll content using destructive methods is not efficient due to a large number of samples, cost, and time needed. Estimationof chlorophyll content by nondestructive methods using handheld chlorophyll meter may be considered to ...
Fabre, Denis, Montoro, Pascal, Murti, Rudi Hari, Nur Cahyo, Andi, Nuringtyas, Tri Rini, TS Putra, Eka   +5 more
core   +1 more source

Photosynthetic responses of heat-stressed apple leaves to foliar application of salicylic and ascorbic acid

Photosynthetica
High temperatures have significant impacts on fruit tree production. Foliar spraying application of promoting agents can be a sustainable approach to managing high-temperature stress in orchards.
I. MIHALJEVIĆ, M. VILJEVAC VULETIĆ, V. TOMAŠ, Z. ZDUNIĆ, D. VUKOVIĆ   +4 more
doaj   +1 more source

Chlorophyll-a concentrations in 82 large alpine lakes on the Tibetan Plateau during 2003–2017: temporal–spatial variations and influencing factors

International Journal of Digital Earth, 2021
As essential parts of the unique ecosystem of Tibetan Plateau (TP), the sizes and associated physical properties of alpine lakes have long been investigated. However, little is known about one of the most critical biogeochemical properties, i.e.
Xuehui Pi, Lian Feng, Weifeng Li, Junguo Liu, Xingxing Kuang, Kun Shi, Wei Qi, Deliang Chen, Jing Tang   +8 more
doaj   +1 more source

The Impact of Typhoon “In-Fa” (2021) on Temperature, Salinity, and Chlorophyll-a Concentration in the Upwelling Area of Northwestern East China Sea

Atmosphere, 2023
Severe typhoon “In-Fa” passed through the northwestern region of East China Sea (ECS) in July 2021, affecting oceanic variables such as seawater temperature, salinity, and chlorophyll-a (Chl-a) concentration over the upwelling area.
Yingliang Che, Biyun Guo, Venkata Subrahmanyam Mantravadi, Jushang Wang, Zhaokang Ji   +4 more
doaj   +1 more source

Overexpression of cytoplasmic Solanum tuberosum Glyceraldehyde 3-phosphate dehydrogenase (GAPDH) gene improves PSII efficiency and alleviates salinity stress in Arabidopsis.

Journal of Plant Interactions, 2021
In this study, transgenic Arabidopsis lines expressing a potato gene (D43), encoding Glyceraldehyde 3-phosphate dehydrogenase, were studied. The D43 plants exhibited improved morphological parameters and accumulation of photosynthetic pigments compared ...
Sajeesh Kappachery, Shina Sasi, Onoud Alyammahi, Ayesha Alyassi, Jelli Venkatesh, Mayank Anand Gururani   +5 more
doaj   +1 more source

Identification of senescence and death in Emiliania huxleyi and Thalassiosira pseudonana: Cell staining, chlorophyll alterations, and dimethylsulfoniopropionate (DMSP) metabolism [PDF]

, 2012
We measured membrane permeability, hydrolytic enzyme, and caspase-like activities using fluorescent cell stains to document changes caused by nutrient exhaustion in the coccolithophore Emiliania huxleyi and the diatom Thalassiosira pseudonana, during ...
Airs, Ruth L., Bell, Thomas G., Berges, John A., Bongaerts, Roy J., Fernandes, Michelle, Franklin, Daniel J., Malin, Gill   +6 more
core   +1 more source

Development of a handheld chlorophyll content detector on wheat and maize leaves based on RGB sensor

Frontiers in Plant Science
Chlorophyll-a (CL-a) and chlorophyll-b (CL-b) are major chlorophyll found in green plants. Determining the CL-a, CL-b, and total chlorophyll (TCL) contents is important to guide crop growth.
Weidong Pan, Heng Ma, Rui Wang, Hongrui Wang, Dong Wang, Wenchuan Guo, Xiangkai Guo   +6 more
doaj   +1 more source

Concentration and distribution of phytoplankton nitrogen and carbon in the Northwest Atlantic and Indian Ocean: A simple model with applications in satellite remote sensing

Frontiers in Marine Science, 2022
Despite the critical role phytoplankton play in marine biogeochemical cycles, direct methods for determining the content of two key elements in natural phytoplankton samples, nitrogen (N) and carbon (C), remain difficult, and such observations are sparse.
Giuseppe Maniaci, Robert J. W. Brewin, Shubha Sathyendranath   +2 more
doaj   +1 more source

Temporal and spatial variations in phytoplankton productivity in surface waters of a warm-temperate, monomictic lake in New Zealand [PDF]

, 2010
Surface phytoplankton productivity measurements were carried out in morphologically complex Lake Rotoiti with the objective of defining variations between sites and seasons, and the dominant environmental drivers of these variations.
Hamilton, David P., Pilditch, Conrad A., von Westernhagen, Nina   +2 more
core   +1 more source

Impact of Coastal Infrastructure on Ocean Colour Remote Sensing: A Case Study in Jiaozhou Bay, China

Remote Sensing, 2019
Spatial and temporal ocean colour data are increasingly accessible through remote sensing, which is a key tool for evaluating coastal biogeochemical and physical processes, and for monitoring water quality.
Yuan Yuan, Isabel Jalón-Rojas, Xiao Hua Wang   +2 more
doaj   +1 more source