Effects of light quality on stem elongation of Pelargonium in vitro

Appelgren, Maigull

doi:10.1016/0304-4238(91)90081-9

Cited by 91 publications

(48 citation statements)

References 7 publications

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“…Light reflected from both mulch colors and the bare substrate had low radiance values in the blue, red and FR wavelengths. The R:FR ratio for all treatments was close to that reported by Appelgren (1991) for incandescent light (0.72) where stem elongation was not inhibited. The B:R ratio in this study, also, was significantly lower than the B:R ratio which resulted in the blue light response observed by Applegren (1991).…”

Section: Chlorophyllsupporting

confidence: 84%

“…In plums (Prunus domestica), blue light caused an increase in the formation of auxiliary buds and a decrease in bud outgrowth while red light encouraged apical dominance resulting in more bud outgrowth (Muleo et al, 2001). Studies on in vitro Pelargonium with incandescent lamps of different wavelength ranges showed that red light encouraged greater stem elongation as compared to white or blue (Appelgren, 1991). In fact, blue light suppressed stem elongation.…”

Section: Plant Responses To Different Light Colorsmentioning

confidence: 99%

“…Gordon et al (2008 and observed no significant differences between blue and red plastic mulch for plant height and fruit yield in squash (2008) and okra (2010). Blue light is known to inhibit apical dominance in plants (Cosgrove, 1981;Mortensen and Stromme, 1987;Appelgren, 1991;Oyaerta et al, 1999;Runkle, and Heins, 2001;Muleo and Morini, 2008); however, a complex interaction of light induced effects regulates the response. The ratio of FR:R light can effect growth.…”

Section: Chlorophyllmentioning

confidence: 99%

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Growth Profile of Chamaedorea cataractarum (Cascade Palm) Seedlings with Different Colored Plastic Mulch

George¹,

Reed²,

Tansel³

et al. 2011

JAS

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Cascade palms (Chamaedorea cataractarum Mart.) are slow growing, ornamental plants suitable for both indoor and outdoor use. The purpose of this study was to determine effects of colored plastic mulch on the growth of Chamaedorea cataractarum Mart. Seedlings grown in soil were compared with those grown using red and blue plastic much cover. The study was conducted in triplicate settings at two different green houses and at two different locations in one of the green houses. Plant growth was monitored for plant height, stem thickness at the base, number of leaves and leaflets, chlorophyll a and b, root density, root length and shoot dry weight. Data were analyzed in a randomized complete block design. Light reflected from both mulch colors and the bare substrate had low radiance values in the blue, red and far-red wavelengths. Mulch color had a relatively small significant effect on plant height (P = 0.0728). Plants grown on red mulch had smaller height than those grown on bare substrate and on blue mulch. Although the differences were not significant, plants grown on blue mulch had higher growth rates (height, stem diameter), as well as higher number of leaves and leaflets.

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Section: Chlorophyllsupporting

confidence: 84%

Section: Plant Responses To Different Light Colorsmentioning

confidence: 99%

Section: Chlorophyllmentioning

confidence: 99%

See 1 more Smart Citation

Growth Profile of Chamaedorea cataractarum (Cascade Palm) Seedlings with Different Colored Plastic Mulch

George¹,

Reed²,

Tansel³

et al. 2011

JAS

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show abstract

“…Increase in plant height and stem elongation was resulted due to increase in length of internodes rather than number of internodes. Similar findings were reported by Appelgaren (1991) found significant differences recorded in internodes length but non-significant in internode number due to the effect of light quality. Similarly Kim et al, (2004) also reported that stem elongation in chrysanthemum was due to internodes length rather than their number and no effect of light quality in number of internodes was observed.…”

Section: Resultssupporting

confidence: 90%

Effect of Photosynthetically Active Radiation (PAR) from LEDs on Growth and Development of Chrysanthemum morifolium Ramat. cv. Zembla

Singh¹,

Sharma²

2017

Int.J.Curr.Microbiol.App.Sci

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“…Plants grown under red light had a lower chlorophyll a/b ratio and biomass than plants grown under white light or mixed red and blue light-emitting diodes (LEDs) (Milivojevic and Tyszkiewicz, 1992;Brown et al, 1995;Gions et al, 1997). Blue light can inhibit the growth of internodes, cell expansion and/or division (Appelgren, 1991;Dougher and Bugbee, 2004). Blue light can also inhibit leaf unfolding and hypocotyl elongation (Dougher and Bugbee, 2001;Ahmad et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Morphological and Physiological Responses of <i>Morus alba</i> Seedlings under Different Light Qualities

Dai

Guang-yu

2016

Not Bot Horti Agrobo

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Light quality can influence the photosynthetic characteristics, morphology and physiological processes of plants. To investigate the effects of different light qualities (white light, W; red light, R; blue light, B; mixture of red and blue light, RB) of light emitting diodes (LEDs) and white cold fluorescent lamp on the growth and morphology of fruiting mulberry plants (Morus alba L. cv. 'Longsang No.1'), fruiting mulberry plants were grown under different light qualities: W, R, B and RB of the same photosynthetic photo flux density (PPFD; 100 μmol m -2 s -1 ) for 20 d. Our results showed that stem length and leaf area of plants grown under R were the highest. However, stem length and leaf area of plants grown under B were lowest. Dry weights (DW), leaf mass per area (LMA), chlorophyll a/b ratio, soluble protein content, sucrose and starch content, and total leaf nitrogen (N) content of plants grown under R were the lowest. Net photosynthetic rate (Pn), stomatal conductance (gs), and actual photochemical efficiency of PSII (ΦPSII) of plants grown under RB were similar to plants grown under W. Net photosynthetic rate (Pn) and ΦPSII of plants grown under R and B were lower than plants grown under W and RB. Antioxidant enzymes activity of plants grown under R, RB and B were higher than plants grown under W. The number of leaf stomata, leaf thickness, palisade tissue length and spongy tissue length were the lowest in plants grown under R. The number of leaf stomata, leaf thickness and palisade tissue length of plants grown under RB and B were higher than plants grown under R. The results of this study indicate that a certain ratio of mixed red and blue LEDs light can reduce adverse effects of monochromatic red and blue LEDs light on fruiting mulberry growth and development.

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Effects of light quality on stem elongation of Pelargonium in vitro

Cited by 91 publications

References 7 publications

Growth Profile of Chamaedorea cataractarum (Cascade Palm) Seedlings with Different Colored Plastic Mulch

Growth Profile of Chamaedorea cataractarum (Cascade Palm) Seedlings with Different Colored Plastic Mulch

Effect of Photosynthetically Active Radiation (PAR) from LEDs on Growth and Development of Chrysanthemum morifolium Ramat. cv. Zembla

Morphological and Physiological Responses of <i>Morus alba</i> Seedlings under Different Light Qualities

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