scholarly journals (65) Evaluation of Curcuma as Potted Plant and Cut Flower

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1012E-1013 ◽  
Author(s):  
Mark Roh ◽  
Roger Lawson ◽  
Jong Suk Lee ◽  
Jeung Keun Suh ◽  
Richard A. Criley ◽  
...  
Keyword(s):  
Morphological Characters ◽  
Plant Production ◽  
Stem Length ◽  
Cut Flower ◽  
Cut Flowers ◽  
Chiang Mai ◽  
Potted Plants ◽  
Leaf Emergence ◽  
Potted Plant ◽  
Storage Temperatures

Sixteen accessions of Curcuma germplasm and several selected accessions of Curcuma were evaluated for use as potted plants or as cut flowers. Curcuma alismatifolia Gagnep. and C. thorelii Gagnep. `Chiang Mai Snow' met standards for cut flower and pot plant use, respectively. Furthermore, C. parviflora Will. `White Angel' proved to be a good selection for potted plant production. Optimum storage temperatures of rhizomes were studied in relation to greenhouse forcing and carbohydrate changes. It is recommended to store rhizomes at 25 to 30 °C after harvest for 2 to 3 months to break dormancy. Plants of C. parviflora `White Angel' flowered in 50 to 89 days and C. `CMU Pride' flowered in 104 days after potting, and were acceptable as potted plants. Plants of C. alismatifolia flowered 96 to 133 days after potting with floral stem length suitable for use as a cut flower. A high level of boron or manganese may cause the burn at the margin of the leaves (marginal leaf burn) observed on old leaves of `CMU Pride' at flowering. The level of ethanol-soluble fructose, glucose, and sucrose in elongated rhizomes with emerged short shoots of Curcuma was higher than the level in rhizomes and increased as storage temperatures increased. Accelerated leaf emergence may be associated with the increase in the glucose and fructose content. Based on the similar morphological characters between C. thorelli `Chiang Mai Snow' and C. parviflora `White Angel', identification of Curcuma accessions is required in future studies.

scholarly journals Effects of a Gibberellin Inhibitor on Flowering, Vegetative Propagation, and Production of Rapid Generation Cycling Gladiolus for Potted Plant Production

HortScience ◽  
2021 ◽  
pp. 1-6
Author(s):  
Jaser A. Aljaser ◽  
Neil O. Anderson
Keyword(s):  
Plant Production ◽  
Production Cycle ◽  
University Of Minnesota ◽  
Cut Flowers ◽  
Flower Stalk ◽  
Potted Plants ◽  
Potted Plant ◽  
Negative Side Effects ◽  
Rapid Generation ◽  
High Concentrations

Gladiolus (Gladiolus ×hybridus) is an asexually propagated, herbaceous perennial and an economically important cut flower crop. In commercial production, gladioli have tall flower stalks, which limit their use to cut flowers and annual garden plants. The gladiolus breeding program at the University of Minnesota has bred and selected rapid generation cycling (RGC) cycle 1 gladiolus, which can flower in <1 year from seed instead of the norm of 3 to 5 years (which are vegetatively propagated as corms). Gibberellin inhibitors, such as ancymidol, are used as plant growth retardants to control height in potted plants. Higher concentrations can inhibit flowering along with other negative side effects. The aim of this study was to investigate the growth, flowering, and corm/cormel production response of cycle 1 gladiolus to the gibberellin inhibitor, ancymidol (0, 100, and 400 mg·L−1 soak) in comparison with noncycle 1 genotypes and commercial cultivars for potted gladiolus production. Cycle 1 genotypes flowered with all ancymidol concentrations while noncycle 1 genotypes had significantly fewer flowers or were completely nonflowering under higher concentrations. All tested genotypes had increased leaf width as ancymidol concentration increased. Conversely, flower stalk heights were shorter as the ancymidol concentration increased while the number of stalks was nonsignificant. Corms, cormel number, and fresh weights decreased in all genotypes except for one cycle 1 genotype, which had an increase in both corm number and fresh weight when treated with 100 mg·L−1 ancymidol. Cycle 1 gladiolus are more resilient to this gibberellin inhibitor even at high concentrations and can potentially be used for gladiolus potted plant production.

scholarly journals FIELD-GROWN CUT FLOWERS: AN ECONOMICAL ANALYSIS FOR PRODUCTION IN THE OZARKS

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 659d-659
Author(s):  
Gloria McIntosh ◽  
Gerald Klingaman
Keyword(s):  
Consumer Response ◽  
Stem Length ◽  
Vase Life ◽  
Cut Flower ◽  
Cut Flowers ◽  
Fresh Weight ◽  
Flower Production ◽  
Economical Analysis ◽  
Celosia Cristata ◽  
Number Of Stems

Several cut flower species were studied to determine their feasibility for cut flower production. Three fertilizer treatments (0.5, .1, and .15kg/m2 respectively) were used and their effect on number of stems, stem length and fresh weight were determined. Celosia cristata and Ageratum houstonianum `Blue Horizon' proved to respond best to fertilizer treatments. Celosia fertilized at a rate of .15kg/m2 will produce approximately 200 stems/m2. Ageratum will produce appoximately 400 stems/m2 when fertilized at a rate of .10kg/m2. Fertlizer rates of .10 and .15 kg/m2 for Eustoma culture yielded 86 stems/m2, which was lower than other species used in this test. Extended vase life and consumer response could possibly justify using this species in cut flower production. An economic break-even analysis will be presented to show what price will have to be received per stem to cover costs.

scholarly journals Adaptation of anthurium cultivars as cut flowers in a subtropical area

2011 ◽  
Vol 46 (2) ◽  
pp. 161-166 ◽  
Author(s):  
Adriane Marinho de Assis ◽  
Lilian Keiko Unemoto ◽  
Ricardo Tadeu de Faria ◽  
Deonísio Destro ◽  
Lúcia Sadayo Assari Takahashi ◽  
...  
Keyword(s):  
Experimental Design ◽  
The Other ◽  
Stem Length ◽  
Cut Flower ◽  
Cut Flowers ◽  
Subtropical Area ◽  
Number Of Leaves ◽  
Anthurium Andraeanum

The objective of this work was to evaluate the adaptation of anthurium (Anthurium andraeanum) cultivars as cut flowers in a subtropical area, located in north of Paraná State, Brazil. The Apalai, Ianomami, Kinã, nK 102, Parakanã, Rubi, and Terena cultivars were cultivated in a nursery under 80% shade. The number of leaves and inflorescences, floral stem length, length and width of inflorescences, and spadix length were evaluated. The experimental design was in completely randomized blocks, with six replicates and five plants per plot. During the 18 months evaluated, 'Parakanã' produced 11 inflorescences per plant, whereas the other cultivars produced seven to nine inflorescences per plant. The number of leaves produced per plant was: 'Ianomami', 25; 'Parakanã', 20; 'Apalai' and 'Terena', 15; 'Kinã' and 'Rubi', 11; and 'nK 102', 9. The Apalai, nK 102, Parakanã, and Rubi cultivars are the most recommended as cut flowers; the Ianomami cultivar is not recommended as a cut flower in this region.

scholarly journals Exogenous Application of Gibberellic Acid Improves Flowering in Kalanchoë

HortScience ◽  
2018 ◽  
Vol 53 (3) ◽  
pp. 342-346 ◽  
Author(s):  
Lívia Lopes Coelho ◽  
Amalia Fkiara ◽  
Kathryn Kuligowska Mackenzie ◽  
Renate Müller ◽  
Henrik Lütken
Keyword(s):  
Gibberellic Acid ◽  
Cut Flower ◽  
Cut Flowers ◽  
Breeding Programs ◽  
Exogenous Application ◽  
Potted Plants ◽  
Lack Of Information ◽  
Kalanchoe Pinnata ◽  
Inducing Factors

Kalanchoë is an economically important genus comprising numerous potted plants and recently is also emerging as cut flowers. However, the lack of information about flower-inducing factors limits the number of species that can be used in commercial production and breeding programs. Therefore, the aim of this study was to investigate the effects of exogenous application of gibberellic acid (GA3) on flower induction and flowering quality of Kalanchoë longiflora and Kalanchoë pinnata. The experiment was conducted under a short day (SD) photoperiod with a day temperature of 22 °C and a night temperature of 15 °C for 8 weeks. The treatments consisted of four applications of either 0.25 or 0.50 μg of GA3 per plant per week, providing a total of 100 μg or 200 μg/plant and 0 μg/plant for the control. The volume of 100 μL of GA3 solution containing 1% agarose was applied to the shoot apex using a pipette. For both species, flowering was enhanced by the GA3 treatments compared with the control plants. Gibberellin-treated plants flowered earlier, produced more inflorescences, and exhibited an increased number of flowers compared with the control plants. Moreover, the GA3 treatments in K. longiflora delayed the appearance of wilted flowers. Plant height increased in plants that received GA3, but the number of nodes did not differ from the control plants. Thus, we conclude that the application of GA3 improves flowering of Kalanchoë species and can be a useful tool for the production of cut flower cultivars.

scholarly journals Automated Irrigation Based on Soil Moisture Tension Reduces Run-off and Increases Productivity and Quality of Greenhouse-grown Cut Flower Roses

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 533B-533
Author(s):  
Lorence R. Oki ◽  
J. Heinrich Lieth
Keyword(s):  
Soil Moisture ◽  
Control System ◽  
Root Zone ◽  
Stem Length ◽  
Cut Flower ◽  
Specific Level ◽  
Moisture Condition ◽  
Pressure Transducers ◽  
Potted Plants ◽  
Irrigation Control

Conventional irrigation practices of cut-fl ower greenhouse crops may result in application of excess water, resulting in runoff which may pollute the environment and contaminate drinking water supplies. A computerized irrigation control system based on soil moisture tension, originally designed for potted plants, was adapted for use in cut flower production. Tensiometers equipped with a high-fl ow ceramic tip and pressure transducers were effective in monitoring the soil moisture in the root zone of plants grown in ground beds and responded to rapid changes in soil moisture. The irrigation control system using these sensors, a computer, and custom-written software continuously monitored the moisture condition of the soil, initiated irrigation when the soil dried to a specific level, and turned off the water when an adequate amount was applied. When the system was installed in a greenhouse producing roses, water use decreased while productivity (stems harvested/m2) and stem length increased substantially. The observed increases in productivity and quality can result in significant increases in profitability for commercial rose producers.

Rose Quality as Affected by Higher Air Temperatures Resulting from Poly-Tunnel Height in a Subtropical Region

2020 ◽  
Vol 36 (4) ◽  
pp. 611-618
Author(s):  
Ling Zou ◽  
Shenchong Li ◽  
Kim Falinski ◽  
Lihua Wang ◽  
Yiping Zhang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Plant Production ◽  
Stem Length ◽  
Leaf Biomass ◽  
List Type ◽  
Cut Flower ◽  
Plant Leaves ◽  
Major Constraint ◽  
Higher Temperature

Highlights Interior temperatures increased with decreasing poly-tunnel height. In subtropical regions, high interior temperatures of poly-tunnels could degrade quality of rose-cut flower. Stunted growth of rose plants because of higher temperatures could lead to mis-interpretations of nutrient deficiency. Abstract . High temperature is a major constraint to plant production in many regions of the world. Observations indicate that poly-tunnel structure design can influence interior temperature, and in turn determine the quality of cut flowers, including the length of the stems, the leaf biomass, and nutrient uptake. In this study, interior temperature and cut-flower quality of roses were assessed in five poly-tunnels with eave heights ranging from 2 to 4 m. Interior temperatures from 11:00-15:00 h in the hottest months of July and August were monitored. Rose (Rosa hybrida ‘Peach Avalanche’) was cultivated in these poly-tunnels with the same cultivation regimes. Higher interior temperatures were observed in poly-tunnels with lower eave heights. Leaf membrane thermal stability (MTS) values were negatively correlated with higher interior temperatures, indicating that the photosynthetic system of plant leaves was impaired. Stem length and mass were decreased with higher temperature by over 50%, while leaf biomass decreased by 25% in the poly-tunnel with eave height of 2 m in comparison with that of 4 m. Nitrogen concentration in plant leaves increased with higher temperature, whereas the patterns of other elements were not associated with different poly-tunnel eave heights. These results indicate that poly-tunnel interior high temperatures that were associated with lower eave heights are a major constraint for commercialized rose-cut flower production in this region, and improved design of poly-tunnels could increase production. Keywords: Cut flower, Membrane thermal stability, Stem length, Stem mass, Yunnan Province.

scholarly journals 574 Capital Investment Analysis of Adopting Zero Runoff Subirrigation Systems in Greenhouse Operations

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 545D-545
Author(s):  
Wen-fei L. Uva ◽  
Thomas C. Weiler ◽  
Robert A. Milligan ◽  
Wen-fei L. Uva
Keyword(s):  
Capital Investment ◽  
Production Efficiency ◽  
Plant Production ◽  
Great Promise ◽  
Hourly Wage ◽  
Labor Costs ◽  
Adoption Of Technology ◽  
Potted Plants ◽  
Potted Plant ◽  
Zero Runoff

Adoption of technology to achieve environmental stewardship and remain competitive is a high priority for greenhouse businesses. Zero runoff subirrigation (ZRS) technology offers great promise to manage fertilizer inputs while improving production efficiency. This study applied economic engineering methodology to quantify costs and returns associated with adopting ZRS systems and compare profitability of producing crops using alternative ZRS systems for greenhouse operations in the northeastern and north central United States. The production models showed that using ZRS systems to grow greenhouse crops can be profitable if growers select a system best suitable for their crop choices. Among the four ZRS systems studied (ebb-and-flow rolling benches, Dutch movable trays, flood floors and trough benches), the Dutch movable tray system returned the highest profit per square foot week (SFW) greenhouse area for small potted plant production ($0.244/SFW), and the flood floor system returned the highest profit when producing large potted plants ($0.002/SFW) and bedding crop flats ($0.086/SFW). The trough bench system was least profitable had the lowest profit for the two applicable crop categories—small potted plants ($0.183/SFW) and large potted plants (–$0.006/SFW). Sensitivity analysis showed that changes of cost variables generally did not affect the profitability rankings for alternative ZRS systems. Except for labor costs, as the hourly wage increased, the Dutch movable tray system gained advantages for small potted plant and large potted plant production. Among selected costs variables, changes in labor costs and tax rate had the highest impact on the profitability of small potted plant production, and changes in labor costs and initial investment costs had the highest impact on the profitability of large potted plant and bedding crop flat production.

scholarly journals (78) Sheltering Cut Flower Plants to Increase Stem Length

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1066B-1066
Author(s):  
H. Chris Wien
Keyword(s):  
Field Experiments ◽  
Light Transmission ◽  
Stem Length ◽  
Cut Flower ◽  
Cut Flowers ◽  
Eustoma Grandiflorum ◽  
Rudbeckia Hirta ◽  
Stem Strength ◽  
Flower Stem ◽  
Number Of Stems

The stems of many flower species used as cut flowers are too short to be commercially useful. Non-chemical techniques are needed to increase the length of the harvested stems without weakening stem strength. Field experiments were conducted that explored the use of black or red shade fabric, used either as a canopy, or as a side curtain, with three species of cut flowers. Trachelium caerulum, Eustoma grandiflorum (Echo Champagne), and Rudbeckia hirta (Prairie Sun) were grown in split-plot experiments in which shade and shelter treatments were applied as main plots, and the flower species formed the subplots. In 2004, shade canopies of 70% light transmission were compared in black and red (“ChromatiNet”) netting, and 50% red netting. Stem length increased from 51 cm for unshaded controls to 54, 56, and 59 cm for 70% black, red, and 50% red, respectively. Productivity of the plants was decreased an average of 21% by shading. In 2005, shade canopies of 50% black or red were compared to side curtains of the same materials, and an unsheltered control, growing the same species of flowers. Stem length was increased by 25% when plants were grown under a shade canopy, and by 14% in the side curtain plots. Shading treatments reduced stem yield by 31%, whereas side curtains had no significant effect on number of stems per plant. Color of the netting did not affect stem length or stem yield in 2005. In both years, the thickness of harvested stems were increased significantly in the shelter treatments. The three species reacted similarly to the treatments imposed in both years. Shelter treatments can be a practical way of increasing cut flower stem length.

scholarly journals Selection of cut flower species affected promotion of flowering and stem elongation by far-red lighting or heating treatments on end of day under limited sunshine from autumn to winter

2020 ◽  
Vol 47 (No. 3) ◽  
pp. 169-179
Author(s):  
Yoshihiro Takemura ◽  
Masayuki Kishimoto ◽  
Fumio Tamura
Keyword(s):  
Stem Elongation ◽  
Internode Length ◽  
Stem Length ◽  
Cut Flower ◽  
Cut Flowers ◽  
Days To Flowering ◽  
Selection Of

The effect of a brief exposure to treatments of end-of-day (EOD) far-red (FR) light and EOD-heating on flowering and stem elongation in certain species cultivated in areas with limited sunshine from autumn to winter has been investigated. Thirteen EOD-FR treated cultivars among all 24 cultivars tested in experiment 1, showed earlier flowering than control plants. Additionally, Kanzaki No.21, F1 Winter cherry and Gypsy deep rose were earlier to flower under the all night-FR treatment than under the EOD-FR treatment. Further, 13 cultivars among all cultivars tested in experiment 1 showed greater stem length, whereas 16 cultivars of them showed greater mean internode length than controls when treated with EOD-FR. The days to flowering in 13 cultivars treated by EOD-Heating, flowering was earlier than in controls. Also, stem length and mean internode length were also promoted by the same treatment in 7 cultivars. Additionally, flowering and stem elongation of Stella rose, Arizona sun, Suzuhime and Extra carmine rose were promoted by a combination of both treatments, and productivity and quality were improved. These results suggest that the treatments tested can help the production of cut-flowers in areas with limited sunshine from autumn to winter, although the method of application of the treatments must be optimized for each species.

scholarly journals Response of Branching and Nonbranching Cut Flower Cultivars of Sunflower to Pinching and Planting Density

2017 ◽  
Vol 27 (2) ◽  
pp. 257-262
Author(s):  
Hans C. Wien
Keyword(s):  
Unit Area ◽  
Flower Size ◽  
Planting Density ◽  
Stem Length ◽  
Cut Flower ◽  
Cut Flowers ◽  
Leaf Stage ◽  
The Difference ◽  
Number Of Stems ◽  
Relationship Of

Pinching sunflower (Helianthus annuus) grown for cut flowers in the vegetative stage increases stem yield at least 3-fold. Four experiments were conducted to further investigate the cultivar response differences to pinching, to explore the response to planting density, and to examine the effect of the time of pinching. In the first two experiments, two branching and one nonbranching cultivar in 2011, and three branching cultivars in 2012, were grown at 6 × 6-, 9 × 9-, and 12 × 12-inch spacing and pinched at the six-leaf stage. Pinching led to stem yield increases, but reduced flower size and stem length. Combining closer spacing with pinching further decreased flower size, increased the number of stems, and the gross value of stems per unit area. At highest densities flowers were too small to be saleable. The inverse relationship of flower size to stem numbers per unit area held true across all cultivars in both years. The branching cultivar Starburst Lemon Aura was the most productive of the cultivars tested when pinched, yielding 15,744 stems/1000 ft2 at the closest spacing. In 2013 and 2015, delaying the time of pinching from the 6-leaf to the 10-leaf stage reduced stem production among three nonbranching cultivars from 2.8 to 1.8 stems/plant, compared with an increase from 4.2 to 5.1 stems/plant for the branching cultivar Goldrush. The difference in pinching response among cultivars in 2013 and 2015 may have been related to relative severity of septoria leaf blight (Septoria helianthi) that infected the lower leaves. The results of the four experiments confirmed the efficacy of pinching on productivity and value of sunflowers, with best results obtained when pinching was done at the six-leaf stage.

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