Results 61 to 70 of about 13,329,450 (200)

Studies of growth & metabolism of a barley mutant lacking chlorophyll b [PDF]

open access: yesPlant Physiology, 1962
In an earlier paper (7) the chlorophyll composition of a number of chlorina mutants of barley obtained from D. W. Robertson (10) were described and it was then pointed out that one of the mutants appeared to be entirely lacking in chlorophyll b. Thus, it was of considerable interest to learn whether the chlorophyll b deficiency was affecting the ...
H R, Highkin, A W, Frenkel
openaire   +2 more sources

Effect of Drought-Stress Conditions in Chlorophyll Content of Dendrobium sp. Planlets

open access: yesJurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH), 2019
Dendrobium sp. was a popular ornamental plant and has high economic value. One of many difficulties in the growth of orchids in Indonesia is low humidity and lack of water availability.
Fesya Salma Putri   +3 more
doaj   +1 more source

An investigation of factors influencing the spatial and temporal distribution of surface phytoplankton in the English Channel and Bay of Biscay in 2003 and 2004

open access: yes, 2009
Throughout 2003 and 2004 continuous autonomous observations of surfacetemperature, conductivity and chlorophyll fluorescence were recorded on the P&O"Pride of Bilbao" ferry between Portsmouth, UK and Bilbao Spain.
Qurban, Mohammed Ali B.
core   +1 more source

An extended PROSPECT: Advance in the leaf optical properties model separating total chlorophylls into chlorophyll a and b

open access: yesScientific Reports, 2017
The PROSPECT leaf optical model has, to date, well-separated the effects of total chlorophyll and carotenoids on leaf reflectance and transmittance in the 400–800 nm. Considering variations in chlorophyll a:b ratio with leaf age and physiological stress,
Yao Zhang   +8 more
doaj   +1 more source

Chlorophyll content of Thalassia hemprichii (Ehrenberg) Ascherson leaves in some coastal areas of Cebu Island, Central Philippines

open access: yesAnnals of Tropical Research, 2018
Variations in the chlorophyll concentrations in seagrass leaves can be used to indicate biomass, productivity and overall ecosystem condition in coastal areas. In this study, we determined the chlorophyll content (ie chl a and b) of Thalassia hemprichii 
Lorenzo C. Halasan, Danilo T. Dy
doaj   +1 more source

Study on pre processing and storage conditions for extraction of chlorophyll from altemantherasessilis (L.) and knetics of degradation of chlorophyll

open access: yes, 2019
Extraction of chlorophyll from various plants is a key topic of scientific and commercial interest Altemantherasessilis was used for theextraction of chlorophyll as a locally available plant in Sri Lanka.
Amarasinghe, BMWPK   +3 more
core  

Investigating the effect of air pollutants in Tehran on leaf surface, proline concentration, soluble carbohydrates and photosynthetic pigments (chlorophyll a, chlorophyll b, total chlorophyll and carotenoids) in two Nerium oleander and acacia (Robinia pseudo acacia L.) plants. [PDF]

open access: yesفیزیولوژی محیطی گیاهی, 2007
The effects of air pollutants in Tehran city on leaf area, proline concentration, soluble carbohydrates and photosynthetic pigments (chlorophyll a, chlorophyll b, total chlorophyll and carotenoids) in acacia and persimmon were the subject of this ...
m ghorbanaali, gh bakhshi, z bakande
doaj  

Effects of Some Ameliorant on Chlorophyll a, Chlorophyll b and Total Chlorophyll on Sweet Corn Growth with Raised-Bed Soil Materials [PDF]

open access: yes, 2020
The raised-bed soil is a land management technology in South Kalimantan. Adding Ameliorant to the raised-bed soil as an effort to increase the utilization of support for the cultivation land. Chlorophyll or leaf green substances found in all green plants
Saidy, Akhmad Rizali   +2 more
core   +1 more source

Study some of Garden Cress (Lepidium sativum L.) Physiological Traits at Levels of Irrigation and Ascorbic Acid [PDF]

open access: yesIkufīziyuluzhī-i Giyāhān-i Zirā̒ī, 2017
Drought seriously reduces the quality and quantity of agronomic and horticultural plants. In such condition, using factors to reduce these effects on plants is indispensible. To evaluate the effect of water stress and different levels of ascorbic acid on
Zohre Akbari   +3 more
doaj  

Determination of Chlorophyll and Carotenoids Present in the Seeds of the Plant Family Apiaceae and the Impact on Seed Quality

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2018
In this study, we assessed the content of chlorophyll a and b, β-carotene and lutein in seeds of carrot, celery, dill, parsley and parsnip commercial varieties by spectrophotometric method.
Marie Grulichová   +3 more
doaj   +1 more source

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