Effect of light intensity on growth and quality of Asarum heterotropoides var. mandshuricum

Sweetpotato sprouts are buds or young shoots formed under dark or low-light conditions that can be eaten directly by people. This study was conducted to investigate the effects of light intensity and photoperiod on the quality and yield of sweetpotato sprouts and to identify the most suitable production conditions to provide a theoretical basis and technical parameters for the production of these vegetables. Four treatments involving different light intensities and photoperiods were set up: WL-1, WL-2, SL-1, and SL-2. The leaf color, nutritional quality, antioxidant capacity, texture characteristics, and yield of the sweetpotato sprouts were analyzed using Duncan’s new complex range method. The results demonstrated the following: 1) an increase in photoperiod improved leaf brightness and enhanced the appearance of the product, whereas light intensity had little effect on these parameters; and 2) low light intensity increased the yield of sweetpotato sprouts, whereas high light intensity reduced their yield. Under weak light conditions, the quality and yield of sweetpotato sprouts were improved, and their taste was unaffected. Therefore, the condition of 750 μmol·m−2·s−1 for 2 hours/day was chosen to produce crispy, high-quality, and high-yielding sweetpotato sprouts.

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Effect of light intensity after flowering on the productivity and quality of silage maize.

Netherlands Journal of Agricultural Science ◽

10.18174/njas.v30i4.16969 ◽

1982 ◽

Vol 30 (4) ◽

pp. 297-316

Author(s):

P.C. Struik ◽

B. Deinum

Keyword(s):

Cell Wall ◽

Light Intensity ◽

Grain Yield ◽

Grain Filling ◽

Growing Season ◽

Field Trials ◽

Silage Maize ◽

Effect Of Light

In field trials during 1977-9, maize was grown under shade conditions at various stages of development. Grain yield was correlated with irradiance received during grain filling and was increased by 10 kg/ha for every MJ/m2 at full light intensity when density was not limiting. In vitro OM digestibility and cell wall content decreased with shading during the latter part of the growing season. Shading also altered ensiling qualities. A hypothesis is formulated to account for the effect of shading on ear size, ear growth and leaf longevity in terms of the prompt effects of shading on root activity. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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EFFECT OF LIGHT INTENSITY ON GROWTH AND QUALITY OF CUT ROSES

Acta Horticulturae ◽

10.17660/actahortic.1997.418.2 ◽

1997 ◽

pp. 25-32

Author(s):

Hans R. Gislerod ◽

Leiv M. Mortensen

Keyword(s):

Light Intensity ◽

Effect Of Light

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Effect of Light Intensity during the Growing Period on Ascorbic Acid Content and Its Histochemical Distribution in the Leaves and Peel, and Fruit Quality of Satsuma Mandarin.

Engei Gakkai zasshi ◽

10.2503/jjshs.61.7 ◽

1992 ◽

Vol 61 (1) ◽

pp. 7-15 ◽

Cited By ~ 4

Author(s):

Hidemi Izumi ◽

Takuji Ito ◽

Yasuji Yoshida

Keyword(s):

Ascorbic Acid ◽

Light Intensity ◽

Fruit Quality ◽

Acid Content ◽

Ascorbic Acid Content ◽

Growing Period ◽

Satsuma Mandarin ◽

Effect Of Light

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Effect of light intensity on the ultrastructure of the filamentous cyanobacterium, Anabaena variabilis

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100103565 ◽

1988 ◽

Vol 46 ◽

pp. 300-301

Author(s):

C. S. Bricker ◽

S. R. Barnum ◽

B. Huang ◽

J. G. Jaworskl

Keyword(s):

Fatty Acid ◽

Light Intensity ◽

Acid Content ◽

Fatty Acid Content ◽

Anabaena Variabilis ◽

Chloroplast Envelope ◽

Major Constituent ◽

Filamentous Cyanobacterium ◽

Photosynthetic Membrane ◽

Effect Of Light

Cyanobacteria are Gram negative prokaryotes that are capable of oxygenic photosynthesis. Although there are many similarities between eukaryotes and cyanobacteria in electron transfer and phosphorylation during photosynthesis, there are two features of the photosynthetic apparatus in cyanobacteria which distinguishes them from plants. Cyanobacteria contain phycobiliproteins organized in phycobilisomes on the surface of photosynthetic membrane. Another difference is in the organization of the photosynthetic membranes. Instead of stacked thylakolds within a chloroplast envelope membrane, as seen In eukaryotes, IntracytopIasmlc membranes generally are arranged in three to six concentric layers. Environmental factors such as temperature, nutrition and light fluency can significantly affect the physiology and morphology of cells. The effect of light Intensity shifts on the ultrastructure of Internal membrane in Anabaena variabilis grown under controlled environmental conditions was examined. Since a major constituent of cyanobacterial thylakolds are lipids, the fatty acid content also was measured and correlated with uItrastructural changes. The regulation of fatty acid synthesis in cyanobacteria ultimately can be studied if the fatty acid content can be manipulated.

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Effect of light intensity and water aging on surface hardness of dental resin-composites

Revue Roumaine de Chimie ◽

10.33224/rrch/2019.64.11.10 ◽

2019 ◽

Vol 64 (11) ◽

pp. 1007-1014

Author(s):

Tong XU ◽

◽

Jia-Hui ZHANG ◽

Zhao-Ying LIU ◽

Xuan LI ◽

...

Keyword(s):

Light Intensity ◽

Surface Hardness ◽

Resin Composites ◽

Dental Resin ◽

Dental Resin Composites ◽

Effect Of Light

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LIGHTING AND PERFORMANCE: AN ANALYSIS ON LIGHTING EFFICIENCY OF ARCHITECTURE STUDIO

Malaysian Journal of Sustainable Environment ◽

10.24191/myse.v1i1.5563 ◽

2019 ◽

Vol 1 (1) ◽

pp. 92

Author(s):

Fazidah Hanim Husain

Keyword(s):

Learning Environment ◽

Comfort Level ◽

Artificial Lighting ◽

Level Measurement ◽

Acceptable Range ◽

Creative Learning ◽

Illuminance Level ◽

And Performance ◽

Effect Of Light

Lighting is one of the key elements in any space and building infrastructure. Good design for an area in the building requires sufficient light that contributes to the efficiency of the activities. The correct method allows natural light to transmit, reduce heat and glare in providing a conducive learning environment. Light plays a significant influence to the quality of space and contributes focus of the students in an architecture studio. Previous research has shown that the effect of light also controlled emotions, behavior, and mood of the students. The operations of artificial lighting that have been used most of the time in an architecture studio during day and night may create lavishness and inadequacy at the same time. Therefore, this paper focuses on the identifying the quality of light for the architecture studio in UiTM (Perak), to instill a creative learning environment. Several methodologies adopted in this study such as illuminance level measurement using lux meter (LM-8100), and a questionnaire survey in gauging the lighting comfort level from students’ perspective. The study revealed that the illuminance level in the architecture studio is insufficient and not in the acceptable range stated in the Malaysian: Standards 1525:2007 and not evenly distributed. The study also concluded that the current studio environment is not condusive and appears monotonous.

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