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Tuesday, August 11, 2020 | History

3 edition of Effects of light quality on flowering and morphogenesis in Hyoscyamus niger L. found in the catalog.

Effects of light quality on flowering and morphogenesis in Hyoscyamus niger L.

A. H. el Hattab

Effects of light quality on flowering and morphogenesis in Hyoscyamus niger L.

by A. H. el Hattab

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  • 6 Currently reading

Published by H. Veenman in Wageningen .
Written in English

    Subjects:
  • Hyoscyamus niger -- Flowering.,
  • Plants -- Effect of light on.,
  • Plants -- Photomorphogenesis.

  • Edition Notes

    Statement[By] A. H. el Hattab.
    SeriesMededelingen Landbouwhogeschool Wageningen, 68-12, Mededelingen (Landbouwhogeschool Wageningen) ;, 68-12.
    Classifications
    LC ClassificationsS239.S2 W3 deel 68-12
    The Physical Object
    Pagination116 p. with illus.
    Number of Pages116
    ID Numbers
    Open LibraryOL4053806M
    LC Control Number79412415

      Plant species differ in their responses to light quality, but red and blue light generally have the strongest effects on the plant growth. The plant height of Tagetes erecta L. and Salvia miltiorrhiza Bunge was greater under blue light treatment than under red and fluorescent white-light treatments (Heo et al., ). Effects of Light Quality on Plant Growth Effects of Light Quality on Plant Growth Wassink, E C; Stolwijk, J A J The external appearance of plants growing under natural conditions of environment is determined by genetic and physiological factors. The genetic factors set certain limits to the variation in the relative and absolute measure of the individuals within one species.

    Similarly, l-menthol, the main component of essential oils in M. arvensis, was times higher under red light than blue or green light, both at µmol m −2 s −1 PPF and h photoperiod for 28 days, while the glycyrrhizic acid (an oleanane-type triterpenoid saponin and considered to be 50 times sweeter than sugar) concentration in.   ScientiaHorticulturae, 33 () 27 Elsevier Science Publishers B.V., Amsterdam -- Printed in The Netherlands Effects of Light Quality on some Greenhouse Crops L.M. MORTENSEN and E. STROMME Agricultural University of Norway, Department of Horticulture, P.O. fis-NLH (Norway) Report No (Accepted for publication 15 April ) ABSTRACT Mortensen, L.M. .

    Light quality can serve as such a cue because the ratio of red light relative to far-red light (R/FR) increases and blue-light intensity decreases with increasing water depth. Growth experiments were conducted to examine how R/FR and blue-light intensity alter leaf morphology of a heterophyllous amphibious plant, Rotala hippuris. The flowering stage of plant growth requires light from the red and orange part of the spectrum. By limiting the amount of light and the number of hours exposed, you can induce the flowering stage artificially. The plant knows to start reproducing and begins its flowering stage, laying seed for another season and finally reaching dormancy.


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Effects of light quality on flowering and morphogenesis in Hyoscyamus niger L by A. H. el Hattab Download PDF EPUB FB2

EFFECTS OF LIGHT QUALITY ON FLOWERING AND MORPHOGENESIS IN HYOSCYAMUS NIGER L. EL HATTAB Laboratory of Plant Physiological Research, Agricultural University, Wageningen, The Netherlands, th Communication. Received VII H.

VEENMAN & ZONEN N.V. - WAGENINGEN - That some reduction of the red light effect was observed here, in contradiction to section 1 above, may be due to the fact that light periods were much shorter (viz., 10 mins v. 2 hrs).In connection with the red light basic period, far-red radiation given after various times of darkness was inactive, and red interruptions at some points Author: El A.H.

Hattab. We investigated the effects of light quality during night interruption (NI) on morphogenesis, flowering, and the transcription of photoreceptor genes in the geranium Pelargonium × hortorum L.H.

effects of light quality on flowering and morphogenesis in hyoscyamus niger l. 1 h. elhattab fibliotheek der)uwhogeschoei geningen. effects of light quality on flowering and morphogenesis in hyoscyamus niger l.

proefschrift ter verkrijging van de graad van doctor in de landbouwwetenschappen op gezag van de rector Cited by: 9. Composition and Quality of Non-food/Non-feed Plant Products - (SS) An attempt to analysis of the effect of light on stem elongation and flowering in Hyoscyamus niger L.

Author(s): De Lint, P. by: Abstract A daylength extension with incandescent light is more effective in promoting flowering of long-day plants like Hyoscyamus niger than fluorescent light. A low phytochrome photoequilibrium. The spectral quality of photoperiodic lighting can affect flowering of short-day plants (SDPs) and long-day plants (LDPs) differently.

When delivered during the middle of the night (night interruption, NI), red (R; – nm) light alone can inhibit flowering of SDPs, whereas a combination of R and far-red (FR; – nm) light promotes flowering of some LDPs.

El Hattab, A. H.: Effects of light quality on flowering and morphogenesis in Hyoscyamus niger L. Meded. Landbouwhogesch. Landbouwhogesch. Wageningen (). We investigated the effects of light quality during night interruption (NI) on morphogenesis, flowering, and the transcription of photoreceptor genes in Petunia hybrida Hort.

‘Easy Wave Pink’ (a qualitative long-day plant, LDP). Plants were grown in a closed-type plant factory under a constant light intensity of μmolm-2s-1 PPF provided by white (W) light emitting diodes (LEDs.

Floral initiation in strawberry cv. Cambridge Favourite, a facultative short-day plant, was inhibited by a daylength extension with red light (R) during the second half of a hour night but not during the first half, and by far-red light (FR) in the first half but not during the second.

Effects of light quality and quantity on flower initiation of Fragaria chiloensis L. CHI grown under Some photoreceptors reportedly show a relationship to photo-morphogenesis in higher M.J.

Schneider, H.A. Borthwick, S.B. HendricksEffects of radiation on flowering of Hyoscyamus niger. Bot., 54 (), pp. Summary After inhibition of Nemophila insignis seeds by far-red (FR) light, a short exposure to blue (Bl) will not induce germination again but stimulation by red (R), with reversion by FR, can be observed.

Germination is inhibited by long exposures to Bl (maxima at and nm). The light quality of the first 2 h of NI affected neither morphogenesis nor flowering, while the light quality of the last 2 h of NI significantly affected both morphogenesis and flowering.

The light quality of the first 2 h of NI affected neither morphogenesis nor flowering, while the light quality of the last 2 h of NI significantly affected both morphogenesis and flowering.

Keywords: anthesis, blue LED (light-emitting diode), chrysanthemum, flowering, light quality, photomorphogenesis, photoreceptor. An experiment was conducted to study the effects of light quality on the growth and flowering of chrysanthemum cv.

Snowdon and cv. Bright Golden Ann under three different temperatures i.e. ± °C, ± °C and ± °C in glasshouses. Effects of light quality on flowering and morphogenesis in Hyoscyamus niger L.

p/>The present paper is concerned with bolting and morphogenesis of Hyoscyamus niger L. as reactions upon. The effects of light quality on photosynthesis and transpiration of chrysanthemums during vegetative and flowering stages are not known.

the long-day plant Hyoscyamus niger L. were followed. The results of recent studies of the effects of temperature and light quality on plant morphogenesis and flowering are discussed.

Red-light or light with a high red/far-red ratio applied as a day-extension or night interruption suppresses stem elongation and promotes lateral branching, whereas far-red light or light with a low red/far-red ratio promotes stem elongation and suppresses lateral.

The flowering responses of Hyoscyamus niger which resulted from exposure to several light-dark cycles of different durations revealed a very pronounced inhibition of flowering in plants exposed to cycles of 24 and 30 hours' duration.

Cycles either shorter or longer resulted in much greater flowering. In fact, this long-day plant could be caused to flower on short photoperiods if each. Amaki, W. and Kunii, M. Effects of light quality on the flowering responses in Kalanchoe Hortic.DOI: /ActaHortic.

Plants of the annual strain of H. niger, a long-day species, were grown for months in 9-hour days before exposure to light of various colours and intensities for different lengths of time from nil to continuous lighting. Coloured radiation was provided by combining coloured fluorescent lamps with filters.

There appeared to be no clearly defined juvenile phase but, with advancing age up to.Marcuvitz S, Turkington R. Differential effects of light quality, provided by different grass neighbours, on the growth and morphology of Trifolium repens L. (white clover) Oecologia (2): Crossref, Medline, Google Scholar.

The specific objective is to investigate the effective light quality for growing plant more rapidly. The effect of light generated by monochromic and mixed radiation from LEDs (blue, green, red) on the response of lettuce (Lactuca sativa L.) were evaluated and compared with the effect of lettuce irradiated by fluorescent lamps.

Photosynthesis.