EJPAU 2008. Woźny A. , Zalewska M. THE EFFECT OF THE LIGHT COLOUR ON THE GROWTH AND FLOWERING OF NARCISSI UNDER LONG-DAY AND HIGH QUANTUM IRRADIANCE CONDITIONS

Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

2008
Volume 11
Issue 2

Topic:

Horticulture

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Woźny A. , Zalewska M. 2008. THE EFFECT OF THE LIGHT COLOUR ON THE GROWTH AND FLOWERING OF NARCISSI UNDER LONG-DAY AND HIGH QUANTUM IRRADIANCE CONDITIONS, EJPAU 11(2), #19.
Available Online: http://www.ejpau.media.pl/volume11/issue2/abs-19.html

THE EFFECT OF THE LIGHT COLOUR ON THE GROWTH AND FLOWERING OF NARCISSI UNDER LONG-DAY AND HIGH QUANTUM IRRADIANCE CONDITIONS

Anita Woźny¹, Małgorzata Zalewska²
¹ Department of Ornamental Plants and Vegetable Crops, Faculty of Agriculture and Biotechnology, University of Science and Technology, Bydgoszcz, Poland
² Department of Ornamental Plants and Vegetable Crops, University of Technology and Life Sciences in Bydgoszcz, Poland

ABSTRACT

Four narcissi varietes were forced in artificial light using fluorescent lamps emitting white, blue, red, yellow and green light. The photosynthetic flux density (PPFD) was 25 µ·m^-2·s^-1, whereas the length of the day was 12 hours. The bulbs of all the studied varieties flowered worse under the red light conditions. It was also observed that the light of white and blue colours improved the stem stiffness of narcissi of ‘Ice Follies’, ‘Johann Strauss’ and ‘Unsurpassable’ varieties in relation to the red, yellow and green light.

Key words: narcissi, forcing under artificial light, light colour, photosynthetic photon flux density.

Anita Woźny
Department of Ornamental Plants and Vegetable Crops, Faculty of Agriculture and Biotechnology, University of Science and Technology, Bydgoszcz, Poland
Bernardyńska 6/8, 85-029 Bydgoszcz, Poland
email: wozny@utp.edu.pl

Małgorzata Zalewska
Department of Ornamental Plants and Vegetable Crops,
University of Technology and Life Sciences in Bydgoszcz, Poland
Bernardyńska 6, 85-029 Bydgoszcz, Poland
Phone: (+48) 52 374 95 36
email: zalewska@utp.edu.pl

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.