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Effect of cold night temperature on flowering of Kalanchoe species

100%
Coelho L. L., Mackenzie K. K., Lutken H., Muller R.
Acta Scientiarum Polonorum. Hortorum Cultus
|
2018
|
tom 17
|
nr 3
Control of flower induction is one of the most important aims in the floriculture industry as it determines the usefulness of plants for cross-pollination and production of flowering plants. The Kalanchoë genus contains around 140 species and numerous interspecific hybrids with a broad range of morphological traits, which makes this genus one of the most cultivated potted plants in the world. Commercial cultivars are easily induced to flowering by short days photoperiod, however, the number of species used for breeding is limited due to the lack of knowledge of flower inducing factors. Many studies suggested that cold night temperature can positively affect flowering in some Kalanchoë species. This study aimed to evaluate flowering in K. prittwitzii, K. marmorata and K. longiflora exposed to different night temperatures (6°C, 12°C and 18°C) combined with short day photoperiod (8 h). K. prittwitzii exhibited 100% flowering in all treatments, and flowering was enhanced by low night temperatures. K. marmorata had minimal flowering response to the treatments and K. longiflora did not flower in any of the treatments. The results support a postulate that interaction between different stimuli is required for flower induction in Kalanchoë species and demonstrate that night temperature can modify the flowering response. Therefore, the interaction between different factors during the plant life cycle requires further investigation.
2

The effects of day and night temperatures during early growth of winter oilseed rape [Brassica napus L.var.oleifera cv.Gorczanski] seedlings on their morphology and cold acclimation responses

100%
Rapacz M.
Acta Physiologiae Plantarum
|
1998
|
tom 20
|
nr 1
Studies on the effects of temperature during the early stage of growth on frost resistance of winter rape seedlings under controlled conditions were performed. It was found that cold acclimation responses of plants were affected to a great extent by the conditions of the seedlings early growth. During this period, when the day temperatures were reduced to the range from +10 °C to +15 °C, a process termed “prehardening” was observed. During prehardening plants formed leaf rosettes. Their ability to develop frost resistance during acclimation at +2 °C also increased. Frost resistance of these plants was comparable with the resistance of plants growing in autumn under field conditions.
3

Effect of night and day temperature on the cover colour and quality parameters of apple

80%
Lakatos L., Biniak-Pierog M., Zyromski A.
Journal of Water and Land Development
|
2012
|
nr 16
4

Pathogenic interactions in X Triticosecale - Septoria spp. and Triticum aestivum - Septoria spp. systems

80%
Arseniuk E., Scharen A. L., Fried P. M., Czembor H. J.
Hodowla Roślin, Aklimatyzacja i Nasiennictwo
|
1994
|
tom 38
|
nr 3-4
5

Effect of seasonal low night temperature at various vegetation stages on maize yield [Zea mays L.]

80%
Koscielniak J., Biesaga-Koscielniak J.
Bulletin of the Polish Academy of Sciences. Biological Sciences
|
1992
|
tom 40
|
nr 4
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