Results 21 to 30 of about 111,032 (263)

Effects of Different Types of Irrigation Water Quality and Silicon Doses on Fruit Yield, Chlorophyll and Carotenoid Contents of Tomato (Lycopersicon esculentum L.) under Soilless Culture Technique

open access: yesJournal of Agricultural Sciences, 2023
This study was conducted to determine the effects of different irrigation water treatments and silicon doses on leaf SPAD meter readings, chlorophyll content and carotenoid contents of tomato plants.
Ahmet Korkmaz, Yeter Yılmaz
doaj   +1 more source

The role of chlorophyll b in photosynthesis: Hypothesis [PDF]

open access: yesBMC Plant Biology, 2001
The physico-chemical properties of chlorophylls b and c have been known for decades. Yet the mechanisms by which these secondary chlorophylls support assembly and accumulation of light-harvesting complexes in vivo have not been resolved.Biosynthetic modifications that introduce electronegative groups on the periphery of the chlorophyll molecule ...
Park, Hyoungshin   +2 more
openaire   +5 more sources

Relationship between Physiological Characteristic and Bean Quality on Some Cocoa Clones (Theobroma cacao L.)

open access: yesCoffee and Cocoa Research Journal, 2015
Photosynthesis is one of the physiological process that influence the bean weight and this process related with the efectiveness of the stomata character and chlorophyll content in the leaves.
Indah Anita Sari   +2 more
doaj   +1 more source

CHLOROPHYLL AND CAROTENOID CONTENTS IN TOMATO AND CUCUMBER PLANTS IN RELATION TO DIMETHOATE AND PROFENOFOS APLLICATION [PDF]

open access: yesJournal of Plant Protection and Pathology, 2002
The insecticides, dimethoate and profenofos were sprayed on tomato and cucumber plants at the fruiting stage. Effect of these insecticides by different concentrations (half, one, and twice recommended rates) on chlorophyll “a”,”b”, total and carotenoid ...
M. Shiboob
doaj   +1 more source

Absorptionsänderungen von Chlorophyll-b im elektrischen Feld / Absorption Changes of Chlorophyll-b in the Electric Feld

open access: yesZeitschrift für Naturforschung B, 1969
In order to test recent interpretations of field indicating absorption changes in photosynthesis, the influence of the electric field on the absorption spectrum of chlorophyll-b is measured in vitro. 50 monomolecular layers of chlorophyll-b are built up on quartz slides by the technique of Blodgett and Langmuir.
S. Schmidt, R. Reich, H. T. Witt
openaire   +1 more source

ABSORPTION SPECTRA AND PHOTOEMISSION OF CHLOROPHYLL-B MULTILAYERS [PDF]

open access: yesChemistry Letters, 1979
Abstract The monolayer of chlorophyll (Chi) b at the air/water interface has been examined by pressure–area isotherm and film thickness. Furthermore, with the multilayer of Chi b on the solid surface the visible absorption spectra and the external photoelectric effect in the vacuum ultraviolet region have been studied. The energy diagram
Hiroo Nakahara   +2 more
openaire   +1 more source

Effects of in Vitro Culture with Chlorophyll a or b on the Fecal Flora Composition of High-Fat-Fed Mice and Metabolomic Analysis of Fermentation Products [PDF]

open access: yesShipin Kexue
The objective of this study was to investigate the effect of chlorophyll a versus b on the intestinal flora of mice induced by a high-fat diet (HFD) metabolomics combined with microbial diversity analysis.
CHEN Yuyao, WANG Yuankai, ZENG Quanheng, ZHOU Chunjie, CAI Tian, CHEN Kewei
doaj   +1 more source

THE INFLUENCE OF STRONG AND WEAK ACID UPON AGGREGATION AND PHEOPHYTINIZATION OF CHLOROPHYLL A AND B

open access: yesIndonesian Journal of Chemistry, 2010
Chlorophyll is green pigment that can be found in plant chloroplast. Higher plants usually have two kinds of chlorophylls, chlorophyll a and b. These green pigments are easily degraded by temperature, light intensity, oxygen, acid, and water.
Lia Kusmita, Leenawaty Limantara
doaj   +1 more source

Productivity of triticale depending on the content of photosynthesizing pigments at anthesis

open access: yesРослинництво та ґрунтознавство, 2021
Photosynthetic pigments play an important role in the accumulation of dry matter and they can be the markers of stress. Change in the ratio of chlorophyll A and B indicates physiological changes and adaptation of the organism to changes of environmental ...
B. Mazurenko
doaj   +1 more source

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

open access: yesFrontiers 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   +6 more
doaj   +1 more source

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