Articles
QUALITY EVALUATION OF FORCED TULIP FLOWERS DEPENDING ON BULB PRODUCTION ENVIRONMENT AND FORCING MEDIUM
Article number
673_93
Pages
675 – 678
Language
English
Abstract
The purpose of this research was to evaluate the influence of environmental conditions during bulb production and date of bulb lifting on date of stage G and consequent quality of flowers in early forcing.
Additionally, the influence of forcing medium on quality of flowers was evaluated.
Two tulip farms in Poland (I: North of Poland and II: East of Poland), two forcing media (commercial and self-prepared substrates), two varieties (Leen van der Mark and Yokohama) were evaluated in these experiments.
In 2002 bulbs of the same cultivar were lifted on the same dates on both farms.
The bulbs from farm II reached Stage G three days later than bulbs from farm I, in both cultivars.
As a consequence of this, bulbs from farm II, forced at the same conditions began flowering later, producing also shorter and lighter stems.
Richer self-prepared rooting medium in 2002 resulted in better quality of Leen van der Mark flowers, particularly produced from bulbs originated from farm II, where very low fertilization during bulb production was applied.
Winter of 2003 was relatively long and severe, which caused the delay of Stage G reaching by two and 4-5 days compared to 2002, respectively, in Leen van der Mark and Yokohama. Yokohama forced in commercial substrate produced taller flower stem in comparison to self-prepared medium.
Flower stems obtained from bulbs originated from farm II were taller than those from bulbs originated from farm I in both forcing media.
However, the latter had bigger flower buds and was heavier, irrespective of the kind of medium.
For Leen van der Mark no difference in length of flower stem, length of flower bud and weight of cut flower, depending on place of bulb production and kind of forcing medium, was observed.
Additionally, the influence of forcing medium on quality of flowers was evaluated.
Two tulip farms in Poland (I: North of Poland and II: East of Poland), two forcing media (commercial and self-prepared substrates), two varieties (Leen van der Mark and Yokohama) were evaluated in these experiments.
In 2002 bulbs of the same cultivar were lifted on the same dates on both farms.
The bulbs from farm II reached Stage G three days later than bulbs from farm I, in both cultivars.
As a consequence of this, bulbs from farm II, forced at the same conditions began flowering later, producing also shorter and lighter stems.
Richer self-prepared rooting medium in 2002 resulted in better quality of Leen van der Mark flowers, particularly produced from bulbs originated from farm II, where very low fertilization during bulb production was applied.
Winter of 2003 was relatively long and severe, which caused the delay of Stage G reaching by two and 4-5 days compared to 2002, respectively, in Leen van der Mark and Yokohama. Yokohama forced in commercial substrate produced taller flower stem in comparison to self-prepared medium.
Flower stems obtained from bulbs originated from farm II were taller than those from bulbs originated from farm I in both forcing media.
However, the latter had bigger flower buds and was heavier, irrespective of the kind of medium.
For Leen van der Mark no difference in length of flower stem, length of flower bud and weight of cut flower, depending on place of bulb production and kind of forcing medium, was observed.
Publication
Authors
D. Sochacki, E. Chojnowska
Keywords
forcing, stage G, quality of flowers, tulip, Tulipa L.
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