Results 21 to 30 of about 55,785 (313)

Chlorophyll a fluorescence and development of zucchini plants under nitrogen and silicon fertilization

Agronomía Colombiana, 2020
Zucchini (Cucurbita pepo L.) has a great economic and productive potential in the semi-arid region of Brazil, due to the wide acceptance by consumers and quick financial return.
Jackson de Mesquita Alves, Alex Serafim de Lima, Francisco Romário Andrade Figueiredo, Toshik Iarley da Silva, Lourival Ferreira Cavalcante, Francisco de Oliveira Mesquita, Evandro Franklin de Mesquita, Cesenildo de Figueiredo Suassuna   +7 more
doaj   +1 more source

Chlorophyll Fluorescence Measurements in Arabidopsis Wild-type and Photosystem II Mutant Leaves

Bio-Protocol, 2015
Chlorophyll fluorescence measurement is a widely used technique to determine photosynthetic performance. Light energy absorbed by a chlorophyll molecule can be dissipated by driving photochemical energy conversion, as heat in non-photochemical quenching ...
Iris Steinberger, Felix Egidi, Anja Schneider   +2 more
doaj   +1 more source

Fresh perspectives on an established technique: Pulsed amplitude modulation chlorophyll a fluorescence

Plant-Environment Interactions, 2022
Pulsed amplitude modulation (PAM) chlorophyll a fluorescence provides information about photosynthetic energy transduction. When reliably measured, chlorophyll a fluorescence provides detailed information about critical in vivo photosynthetic processes ...
Guanqiang Zuo, Robert M. Aiken, Naijie Feng, Dianfeng Zheng, Haidong Zhao, Thomas J. Avenson, Xiaomao Lin   +6 more
doaj   +1 more source

The effect of physiological age of potato plants on chosen chlorophyll fluorescence parameters

Plant, Soil and Environment, 2015
Potato (Solanum tuberosum L.) crop is the world's number one non-grain food commodity and the fourth main food crop in the world after maize, rice and wheat. It is a typical plant mainly of temperate climate.
K. Rykaczewska, D. Mańkowski
doaj   +1 more source

Unexpected Dual Function of Plant YUCCA Enzymes Links Chlorophyll Catabolism to Auxin Homeostasis

Angewandte Chemie, EarlyView.
YUCCA enzymes are well known to catalyze the main step of auxin biosynthesis in plants. Here, a hitherto undescribed dual function was discovered, revealing that some YUCCAs also act in chlorophyll degradation. In vitro feedback regulation furthermore suggests a link between chlorophyll degradation and hormone homeostasis and a physiological role of ...
Sina Rütschlin, Lei Zhang, Cornelia A. Karg, Michael Zwerger, Johanna M. Gostner, Simone Moser, Robin Teufel   +6 more
wiley   +2 more sources

Subsurface chlorophyll maxima reduce the performance of non-photochemical quenching corrections in the Southern Ocean

Frontiers in Marine Science
Non-photochemical quenching (NPQ) within phytoplankton cells often causes the daytime suppression of chlorophyll fluorescence in the Southern Ocean. This is problematic and requires accurate correction when chlorophyll fluorescence is used as a proxy for
Kimberlee Baldry, Peter G. Strutton, Peter G. Strutton, Peter G. Strutton, Nicole A. Hill, Nicole A. Hill, Philip W. Boyd, Philip W. Boyd   +7 more
doaj   +1 more source

Chlorophyll fluorescence in pepper seedlings after seed priming and induction of salt stress [PDF]

Revista Ceres
Chlorophyll fluorescence analysis is a method that has been widely disseminated among researchers for ensuring fast, accurate and non-destructive results.
Júlia Gabriella da Silva Rocha Nobre, Clíssia Barboza da Silva, João Correia de Araújo Neto, Vilma Marques Ferreira, João Luciano de Andrade Melo Júnior, Luan Danilo Ferreira de Andrade Melo   +5 more
doaj   +1 more source

SHADE TOLERANCE OF MARIGOLD PLANTS (Calendula officinalis)

Revista U.D.C.A Actualidad & Divulgación Científica, 2015
Pot marigold (Calendula officinalis L.) is the second most commonly-sold medicinal herb in Colombia. The study was performed in Tunja, Colombia, in which chlorophyll and carotenoid content were evaluated in pot marigold grown under low and high light ...
Fánor Casierra-Posada, Omar F. Ávila-León   +1 more
doaj   +3 more sources

CHLOROPHYLL a FLUORESCENCE ANALYSIS IN FORESTS

Annali di Botanica, 2016
A European-wide assessment of chlorophyll a fluorescence (ChlF, prompt fluorescence on dark-adapted samples) parameters in forest ecosystems was carried out in the years 2012-2013, within the 7FP FunDivEUROPE project. A total of 1596 trees growing in 209 stands distributed in six countries, from Mediterranean to boreal sites, were sampled.
POLLASTRINI, MARTINA, Holland, V., Brüggemann, W., BUSSOTTI, FILIPPO   +3 more
openaire   +1 more source

Assessment of senescence of cut flowers in Chrysanthemum morifolium L. as judged from chlorophyll fluorescence characteristics of leaves on the same shoot

浙江大学学报. 农业与生命科学版, 2005
Chlorophyll fluorescence parameters were measured by pulse-amplitude modulation (PAM) fluoremetry on the leaves of Chrysanthemum morifolium L. cut flowering shoots.
ZHANG Yan-qin, LI Fang, GUO Yan-ping, CHEN Kun-song   +3 more
doaj   +1 more source