Effects of CO2 Enrichment on Yields and Preservability of Cut Flowers in Phalaenopsis.

Abstract

SummaryThe effect of CO2 enrichment on Phalaenopsis cut flower production was examined for 30 months throughout five flowering cycles. The plant was cultured in three greenhouses with different CO2 levels of (A): control, daily mean of ambient air=438 ppm; (B): 700 ppm; and (C): 1000 ppm. 1. The fresh weight of cut flowers, the numbers of inflorescence and flowers per 20 plants varied, depending on the CO2 concentration for each flowering cycle.2. The preservability (vase life) of cut flowers always improved under higher CO2 levels. Organic acid contents of plants were also higher under higher CO2 levels.

Improving the Quality of Cut Hydrangea Flowers on Treatments of CO2 Fertilization under Pre-harvest and Slightly Acidic Electrolyzed (HOCl) Water under Postharvest

“…The 1,000 mol•mol -1 CO 2 fertilization was different on the fresh weight and the strawberries' diameter compared to that of the control (Choi et al, 2017). A previous study has shown that in Phalaenopsis, CO 2 fertilization increased the fresh weight, the number of inflorescences, and the flower size, but the treatment effects differed based on the fertilization season (Endo and Ikushima, 1997). The flower size of Phalaenopsis was similar to that of its control under CO 2 fertilization of 800 mol•mol -1 , which suggests that the EC and N:K ratios were more influencing factors than CO 2 fertilization (Cho et al, 2020).…”

“…CO 2 fertilization of 1,000-1,500 mol•mol -1 after sunrise increased the number of roses by 10-20%, and CO 2 800 mol•mol -1 positively affects the flower spike length, the number of lateral branches, and flower buds, and day to the flowering of Phalaenopsis (Cho et al, 2020;RDA, 2020). The CO 2 fertilization of 1000 mol•mol -1 prolonged vase life by 30 days and increased the sugar contents of the flower stalk on Phalaenopsis (Endo and Ikushima, 1997). The elevated CO 2 fertilization increased the dry matter accumulation, water use efficiency and biomass of tomatoes (Yang et al, 2020).…”

Effect of CO₂ Enrichment on Growth and Flowering of <i>Phalaenopsis</i>

“…Endo and Ikushima (1997) observed increases in the number of spikes and flowers, and higher spike fresh weight in cut flower Phalaenopsis when the CO 2 concentration was increased to 700 and 1000 ppm. Hwang and Jeong (2009) suggested that the vegetative growth of Phalaenopsis cultivars grown under 2000 ppm CO 2 was greater than that of plants grown under 1000 ppm CO 2 .…”

“…Plant quality, expressed by the growth habit and the number of flowers, is often enhanced by CO 2 enrichment (Endo and Ikushima, 1997). CO 2 application can increase growth rates and reduce production time, but leaf senescence or visible leaf injuries such as chlorosis, necrosis, and leaf curling is observed at higher CO 2 levels in some annual plants (Mortensen, 1987).…”

From diel photosynthesis to crop growth in the crassulacean acid metabolism (CAM) orchid Phalaenopsis

“…CO2 enrichment in the vegetative phase can increase plant growth and leaf initiation (Jin Kim et al, 2017), and can have a delayed effect in increasing flower spike biomass at the end of the flowering phase (Kromwijk et al, 2014). When applied during the entire cultivation period, it can result in an increased number of flower spikes, increased number of flowers, and faster flower development (Endo and Ikushima, 1997, Kromwijk et al, 2014.…”