Volume 9
Issue 2/volume9
Horticulture
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume9/issue2/volume9/abs-19.html
THE EFFECT OF THE DATE AND DEPTH OF CORM PLANTING ON THE QUALITY TRAITS OF SPARAXIS TRICOLOR KER.-GAWL. FLOWERS GROWN IN THE CONDITIONS OF THE LUBLIN DISTRICT
Barbara Marcinek, Jerzy Hetman
Institute of Ornamental Plants and Architecture of Landscape,
Agricultural University of Lublin, Poland
ABSTRACT
A field experiment was conducted in the years 2000-2003. The corms of Sparaxis tricolor were planted in spring at the following dates: 20.04, 29.04, 10.05 and 20.05 at 3 depths of planting: 4, 6 and 8 cm. The greatest number of inflorescence stalks growing from 1 corm was obtained planting Sparaxis at the earliest of the studied dates. The length of the main shoot, the length of the spike, the number of inflorescences in a spike as well as the diameter of the first flower were also the biggest when the corms were planted at the turn of the second and third 10-days’ period of April. More inflorescence stalks were obtained planting the corms at the depth of 4 cm. Deeper corm planting at the depth of 6-8 cm had a positive effect on the diameter of the first flower in the inflorescence and the length of the leaves. The studies observed a positive effect of earlier planting on the formation of inflorescence stalks containing at least 5 flowers in a spike. Their proportion range in particular years was from 15 to 40% for Sparaxis planted on 20 April and it decreased to 6-17% when the corms were planted on 20 May.
Key words: Sparaxis tricolor, planting date, planting depth, flowering.
Barbara Marcinek
Institute of Ornamental Plants and Architecture of Landscape,
Agricultural University of Lublin, Poland
Kr. Leszczynskiego 58, 20-068 Lublin, Poland
Jerzy Hetman
Institute of Ornamental Plants and Architecture of Landscape,
Agricultural University of Lublin, Poland
Kr. Leszczynskiego 58, 20-068 Lublin, Poland
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.