EFFECT  OF  COLD  NIGHT  TEMPERATURE  ON  FLOWERING  OF  Kalanchoë  SPECIES

Coelho, Lívia Lopes; Mackenzie, Kathryn Kuligowska; Lütken, Henrik; Müller, Renate

doi:10.24326/asphc.2018.3.12

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…The genus presents a wide range of attractive traits that can be of commercial value [26,27]. However, numerous species are difficult both, to induce flowering and control the time of flowering [28][29][30]. Generally, the flowering induction in Kalanchoë is determined by photoperiod.…”

Section: Introductionmentioning

confidence: 99%

Phylogenomic Analysis of the PEBP Gene Family from Kalanchoë

et al. 2019

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The PEBP family comprises proteins that function as key regulators of flowering time throughout the plant kingdom and they also regulate growth and plant architecture. Within the PEBP protein family, three subfamilies can be distinguished in angiosperms: MOTHER OF FT AND TFL1-like (MFT), FLOWERING LOCUS T-like (FT-like), and TERMINAL FLOWER1-like (TFL1-like). Taking advantage of the genome sequences available from K. fedtschenkoi and K. laxiflora, we performed computational analysis to identify the members of the PEBP gene family in these species. The analyses revealed the existence of 11 PEBP genes in K. fedtschenkoi and 18 in K. laxiflora, which are clustered in two clades: FT-like and TFL1-like. The PEBP genes had conserved gene structure and the proteins had highly conserved amino acid sequences in the positions crucial for the protein functions. The analysis of Ka/Ks ratio revealed that most recently duplicated genes are under positive selection. Despite being an economically important genus, the genetics underlying the regulation of flowering in Kalanchoë is poorly understood. The results of this study may provide a new insight into the molecular control of flowering that will allow further studies on flowering control in Kalanchoë.

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Section: Introductionmentioning

confidence: 99%

Phylogenomic Analysis of the PEBP Gene Family from Kalanchoë

et al. 2019

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“…Research on the potted plant quality of kalanchoe before transport has primarily focused on certain aspect of the cultivation environment, such as light, air temperature, relative humidity, CO 2 , fertilizer, and growth retardant treatments (Leonard and Nell, 1998;Kim et al, 2014;Coelho et al, 2018;Cho et al, 2020;Park et al, 2021). It has been found that the shelf life and quality of potted plants are improved when 1-methylcyclopropene (1-MCP), 1-hexylcyclopropene (1-HCP), and 1-octylcyclopropene (1-OCP) are used as ethylene inhibitors before the exporting of kalanchoe to Japan, as kalanchoe is an ethylene-sensitive plant (Kebenei et al, 2003;Park et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Effect of the Substrate Water Content on the Postharvest Quality and Shelf Life of Potted Kalanchoe blossfeldiana

Lee,

Lee

2024

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In this study, we investigated the effects of the substrate water content on potted kalanchoe (Kalanchoe blossfeldiana) in an export distribution simulation. Potted kalanchoe plants were treated either with the optimum substrate water content (OSW, 50 -60%) or a low substrate water content (LSW, ≤ 20%) and the postharvest quality and shelf life were assessed at farm or wholesale, export, auction, and consumer stages. The shelf life of the LSW flowers was shorter than that of the OSW flowers by 36%. The primary reason for the short shelf life after the LSW treatment was an increase in leaf chlorosis. The plant height was shorter with the LSW treatment at all stages, while the plant width was longer before the export stage. The fresh and dry weights of the root with the LSW treatment were lower at all stages. The chlorophyll content and the Fv/Fm of the leaves were lower during the auction stage for the LSW treatment. The Fv/Fm of the OSW treatment and LSW treatment were 0.79 and 0.77, respectively, during the auction stage. The change in the size of the stomatal pores and complexes was higher for the LSW treatment at all stages, but this difference was not significant. The difference between the air temperature and the petal or leaf surface temperature did not differ between treatments at the auction stage and consumer stage. The correlation between the shelf life and plant height was positive for all stages. There was no correlation between shelf life and the temperature of the flowers or leaves on auction stage and consumer stage. At the end of the shelf life, there was a high positive correlation between the shelf life and the substrate water content (r = 0.8**), the number of flowers (r = 0.8**) or buds (r = 0.6**), and flowering rate compared to the shipment (r = 0.5*) at the consumer stage. The findings here indicates that the substrate water content affects the postharvest quality and shelf life of potted kalanchoe.

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