Effects of irrigation frequency on root formation and shoot growth of spray chrysanthemum cuttings in small jute plugs

Buwalda, F.; Kim, Ki Sun

doi:10.1016/0304-4238(94)90067-1

Cited by 9 publications

(6 citation statements)

References 17 publications

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“…Root development is influenced by a number of external factors (Su et al, 2006). The external factors, such as water, nutrients, temperature, light conditions, and culture media must be optimized for root development and growth (Borowski et al, 1987;Buwalda and Kim, 1994;Kozlowaka, 1992).…”

Section: Introductionmentioning

confidence: 99%

“…Vigorous rooting of chrysanthemum cuttings is crucial for the success of final greenhouse production as small differences in initial rooting can result in larger differences in quality and yield after several weeks or at the harvesting time (Buwalda et al, 1995). Root development is influenced by a number of external factors (Su et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Promotion of Adventitious Roots in Chrysanthemum Cuttings by Soaking in Ozonated Water

Park

Isobe

Kusakari

et al. 2009

Ozone: Science & Engineering

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To examine the effect of soaking in ozonated water (OW) on development of adventitious roots, basal ends of chrysanthemum cuttings (Chrysanthemum morifolium Ramat.) were soaked in 1, 3 or 5 mg L À1 OW, in an indol-3-butyric acid (IBA) solution prepared from a commercial root promoting agent or in distilled water (DW). At 20 day after transplanting (DAT), a significant increase in adventitious root number (ARN) was observed in the IBA-treated cuttings but early root elongation was delayed. When soaked in the 5 mg L À1 OW, ARN and total root length (TRL) grown over 40 mm were increased with a decrease in soaking duration (from 50 to 5 min). Lateral root number (LRN) of the cuttings soaked in the 3 mg L À1 OW for 1 h showed four times higher than that of the DW treatment at 19 DAT. Optimal combination of dissolved ozone concentration and soaking duration can promote early root elongation and LRN of chrysanthemum cuttings. From a comprehensive standpoint, a high DOC of OW with a short soaking duration (3 mg L À1 · 1 h and 5 mg L À1 · 5 min) worked as well as IBA for adventitious rooting of chrysanthemum cuttings. These findings indicate that ozonated water can be an alternative to root promotion agents for adventitious rooting of chrysanthemum cuttings.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Promotion of Adventitious Roots in Chrysanthemum Cuttings by Soaking in Ozonated Water

Park

Isobe

Kusakari

et al. 2009

Ozone: Science & Engineering

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“…In substrates, however, larger amounts of pore space (porosity) allow for more frequent irrigation than in soil-based growing (Assouline et al, 2012). Increasing the irrigation frequency from 1 to 30 cycles a day increased fresh (FW) and dry weight (DW) growth of Chrysanthemum with 10–30% (Buwalda and Kim, 1994; Silber et al, 2003, 2005; Xu et al, 2004). Irrigation frequency is therefore a key management factor in maintaining a flow of water and nutrients toward the roots which is large enough to surpass the plant water uptake (Raviv et al, 1999; De Swaef et al, 2011) and nutrient uptake (Silber et al, 2003; Xu et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Maximum Plant Uptakes for Water, Nutrients, and Oxygen Are Not Always Met by Irrigation Rate and Distribution in Water-based Cultivation Systems

et al. 2017

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Growing on rooting media other than soils in situ -i.e., substrate-based growing- allows for higher yields than soil-based growing as transport rates of water, nutrients, and oxygen in substrate surpass those in soil. Possibly water-based growing allows for even higher yields as transport rates of water and nutrients in water surpass those in substrate, even though the transport of oxygen may be more complex. Transport rates can only limit growth when they are below a rate corresponding to maximum plant uptake. Our first objective was to compare Chrysanthemum growth performance for three water-based growing systems with different irrigation. We compared; multi-point irrigation into a pond (DeepFlow); one-point irrigation resulting in a thin film of running water (NutrientFlow) and multi-point irrigation as droplets through air (Aeroponic). Second objective was to compare press pots as propagation medium with nutrient solution as propagation medium. The comparison included DeepFlow water-rooted cuttings with either the stem 1 cm into the nutrient solution or with the stem 1 cm above the nutrient solution. Measurements included fresh weight, dry weight, length, water supply, nutrient supply, and oxygen levels. To account for differences in radiation sum received, crop performance was evaluated with Radiation Use Efficiency (RUE) expressed as dry weight over sum of Photosynthetically Active Radiation. The reference, DeepFlow with substrate-based propagation, showed the highest RUE, even while the oxygen supply provided by irrigation was potentially growth limiting. DeepFlow with water-based propagation showed 15–17% lower RUEs than the reference. NutrientFlow showed 8% lower RUE than the reference, in combination with potentially limiting irrigation supply of nutrients and oxygen. Aeroponic showed RUE levels similar to the reference and Aeroponic had non-limiting irrigation supply of water, nutrients, and oxygen. Water-based propagation affected the subsequent cultivation in the DeepFlow negatively compared to substrate-based propagation. Water-based propagation resulted in frequent transient discolorations after transplanting in all cultivation systems, indicating a factor, other than irrigation supply of water, nutrients, and oxygen, influencing plant uptake. Plant uptake rates for water, nutrients, and oxygen are offered as a more fundamental way to compare and improve growing systems.

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“…A successful attempt was made with an almost completely hydroponic ebb-andflow system, where the substrate (jute plugs) was merely used as support material, and a separate rooting phase was utilized Buwalda and Kim, 1994). These experiments showed for the first time that production was possible for 10 consecutive chrysanthemum crops almost without substrate.…”

Section: Introductionmentioning

confidence: 99%

Possibilities for Soilless Cultivation in Cut Chrysanthemum: Effect of Irrigation Frequencies and Spacing Schedules

Fanourakis¹,

Heuvelink²,

Verkerke³

2011

Acta Hortic.

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Three levels of irrigation frequencies, provided by root misting, combined with three plant densities and two spacing treatments were tested to evaluate the optimum conditions during the first crop stages of chrysanthemum in a soilless cultivation system (aeroponics) in an experiment conducted in autumn. The optimum misting frequency was 32' times  min h -1 . A higher frequency (121') had no additional effect, whereas the lowest frequency (16') had a negative effect on total shoot dry mass (TDM s ) are feasible until week 2 with hardly any negative effects on plant growth, while spacing schemes give several possibilities for a smaller reduction of the TDM s , than that expected by the higher initial densities.

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Effects of irrigation frequency on root formation and shoot growth of spray chrysanthemum cuttings in small jute plugs

Cited by 9 publications

References 17 publications

Promotion of Adventitious Roots in Chrysanthemum Cuttings by Soaking in Ozonated Water

Promotion of Adventitious Roots in Chrysanthemum Cuttings by Soaking in Ozonated Water

Maximum Plant Uptakes for Water, Nutrients, and Oxygen Are Not Always Met by Irrigation Rate and Distribution in Water-based Cultivation Systems

Possibilities for Soilless Cultivation in Cut Chrysanthemum: Effect of Irrigation Frequencies and Spacing Schedules

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