scholarly journals (84) Producing Cut Flowers in High Tunnels and Open Fields

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1067D-1067
Author(s):  
H. Chris Wien
Keyword(s):  
Warm Season ◽  
Single Layer ◽  
Stem Length ◽  
Pest Species ◽  
Cut Flowers ◽  
Eustoma Grandiflorum ◽  
High Tunnel ◽  
High Tunnels ◽  
Season Extension ◽  
Choice Of Species

Flowering plants grown and marketed locally as cut flowers have become economically important in recent years, concentrating on species that are too delicate to ship long distances. Although the bulk of this production is done outdoors, extending the season at both ends by using high tunnels (unheated greenhouse structures covered with a single layer of polyethylene), has become popular. To determine the advantages and drawbacks of using high tunnels as season extension structures for cut flowers, variety trials of seven and four flower species were conducted in 2004 and 2005, respectively, both in a high tunnel and in an adjacent field. In the cool, rainy 2004 season, plants in the tunnel were ready for harvest 20 days sooner than the same varieties outside. Outside plants had 25% more stems than tunnel-grown plants, but there was no difference in average stem length. In the dry, warm season of 2005, tunnel-grown plants were 8 days earlier, and had 58% more stems, which were increased in length by 16% over field-grown plants. Lisianthus (Eustoma grandiflorum) and snapdragons (Antirrhinum) were grown in both seasons, and gave similar results both times. Tunnel-grown lisianthus showed a 34% increase in stems per plant, and an 8% increase in stem length, and the stems could be harvested 8 days earlier. Snapdragons were 9 days earlier in the tunnel both years, but tunnel-grown plants produced 22% fewer stems. Disease and insect pressures occurred in both locations, but pest species causing problems differed. With careful choice of species to be grown in tunnels, cut flower production in this environment can be optimized.

scholarly journals Improving Snapdragon Cut Flower Production through High Tunnel Season Extension, Transplant Timing, and Cultivar Selection

HortScience ◽  
2021 ◽  
Vol 56 (10) ◽  
pp. 1206-1212
Author(s):  
Maegen Lewis ◽  
Melanie Stock ◽  
Brent Black ◽  
Dan Drost ◽  
Xin Dai
Keyword(s):  
High Elevation ◽  
Stem Length ◽  
Cut Flower ◽  
Cut Flowers ◽  
High Tunnel ◽  
Cultivar Selection ◽  
High Tunnels ◽  
Season Extension ◽  
Long Stem ◽  
Advanced Production

The demand for locally grown, specialty cut flowers is increasing and now includes nontraditional regions for production, such as the U.S. Intermountain West. The objective of this study was to evaluate snapdragon (Antirrhinum majus L.) as a cool season, cut flower crop in northern Utah, where the high elevation and semiarid climate result in a short growing season with strong daily temperature fluctuations. High tunnel and field production methods were trialed in North Logan, UT (41.77°N, 111.81°W, 1382 m elevation) with cultivars ‘Chantilly’, ‘Potomac’, and ‘Rocket’ in 2018 and 2019. Each year, five to six transplant timings at 3-week intervals were tested, beginning in early February in high tunnels and ending in late May in an unprotected field. Stems were harvested and graded according to quality and stem length. High tunnels advanced production by 5 to 8 weeks, whereas field harvests continued beyond the high tunnel harvests by 2 to 8 weeks. High tunnels yielded 103 to 110 total stems per m2 (65% to 89% marketability), whereas field yields were 111 to 162 total stems per m2 (34% to 58% marketability). Overall, production was the greatest with March transplant timings in the high tunnels and mid-April transplant timings in the field. ‘Chantilly’ consistently bloomed the earliest on 4 and 6 May each year, ‘Potomac’ had the highest percentage of long stem lengths, and ‘Rocket’ extended marketable stem production through July in high tunnels. Selecting optimal transplant dates in the high tunnel and field based on cultivar bloom timing maximizes marketable yields and results in a harvest window lasting 4.5 months.

scholarly journals Floral Crop Production in High Tunnels

2009 ◽  
Vol 19 (1) ◽  
pp. 56-60 ◽  
Author(s):  
H. Chris Wien
Keyword(s):  
Crop Production ◽  
Warm Season ◽  
Cut Flower ◽  
Cut Flowers ◽  
High Tunnel ◽  
Flower Production ◽  
High Tunnels ◽  
Celosia Argentea ◽  
Low Tunnels ◽  
High Level

High tunnels are well suited for use in the production of floral crops, especially cut flowers. Through the increases in temperature afforded at both ends of the growing season, high tunnels allow earlier and later harvests than are possible in the field. During summer, rain protection and a relatively calm environment provides an ideal growing environment to cut flower crops. In U.S. Department of Agriculture (USDA) Hardiness Zones 3 through 5, the higher temperatures of a high tunnel permit culture of warm-season crops like celosia (Celosia argentea) during summer. Cut flower production allows intensive production on a small land area and provides a high level of income. For these reasons, high tunnels have become a standard part of cut flower growers' farms. Most commonly, they are single-bay structures with roll-up sides, but use of multi-bay complexes is becoming more popular for larger-scale growers. In USDA Hardiness Zones of 7 and higher, high tunnels are shaded in summer to lower interior temperatures and enhance production of shade-tolerant species. Overall, techniques of moderating temperature extremes with shading and ventilation, or use of low tunnels inside to increase minimum temperatures are important options for cut flower production. In the presentation, comparisons will be made in growth and earliness of production and yield for several cut flower species grown in the field and an adjacent high tunnel.

scholarly journals The Central Great Plains High Tunnel Horticulture Project

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 750B-750
Author(s):  
Lewis Jett* ◽  
Edward Carey ◽  
Laurie Hodges
Keyword(s):  
Great Plains ◽  
Food Systems ◽  
Low Cost ◽  
Temperature Management ◽  
Cut Flowers ◽  
High Tunnel ◽  
High Tunnels ◽  
Agriculture And Food ◽  
Locally Grown ◽  
On Farm

There is great interest by horticulture producers in the Central Great Plains in methods to extend the traditional growing season, increase value of crops and provide more locally grown produce. High tunnels are low-cost, unheated greenhouses that can accomplish these goals. In 2002, the Central Great Plains High Tunnel Project was initiated through funding support by the Initiative for Future Agriculture and Food Systems (IFAFS). The Univ. of Missouri, Kansas State Univ., and the Univ. of Nebraska have constructed 24 high tunnels to conduct research on vegetables, small fruits and cut flowers. Each year, a multi-state workshop is conducted along with several on-farm and research center tours. Growers are collaborating with extension personnel on projects ranging from high tunnel temperature management to pest management. A web site for high tunnel information has been constructed (www.hightunnels.org). Production guides on specific high tunnel crops have been printed. From 2002-03, a significant number of high tunnels have been constructed in the Central Great Plains.

scholarly journals Economic Evaluation of Implementing Strawberry Season Extension Production Technologies in the U.S. Intermountain West

HortScience ◽  
2015 ◽  
Vol 50 (3) ◽  
pp. 395-401 ◽  
Author(s):  
Tiffany L. Maughan ◽  
Kynda R. Curtis ◽  
Brent L. Black ◽  
Daniel T. Drost
Keyword(s):  
Climatic Conditions ◽  
Production Costs ◽  
Intermountain West ◽  
High Tunnel ◽  
Net Returns ◽  
Study Results ◽  
High Tunnels ◽  
Season Extension ◽  
Low Tunnels ◽  
The U.S

Strawberry production in the U.S. Intermountain West is limited by harsh climatic conditions and competition from domestic producers and imports. Using season extension methods to combat climatic conditions may be effective but generally increases production costs. This study evaluates the economic returns to implementing high tunnels, low tunnels, and in-ground supplemental heating to strawberry production (Seascape and Chandler cultivars) in northern Utah. The high tunnel provided a net return of $1,943.57 or $15,548.56 per hectare assuming eight high tunnels per hectare. The addition of low tunnels within the high tunnel led to a positive increase in net returns for ‘Seascape’ but not for ‘Chandler’ production. Supplemental in-ground heating increased net returns by up to 50% for both cultivars, primarily as a result of higher pre-season yield and market pricing. Study results find that season extension technologies can successfully increase net returns to strawberry production through early and increased yields, when strawberries are sold primarily through local direct markets.

scholarly journals High Tunnel and Field Production of Organic Heirloom Tomatoes: Yield, Fruit Quality, Disease, and Microclimate

HortScience ◽  
2012 ◽  
Vol 47 (9) ◽  
pp. 1283-1290 ◽  
Author(s):  
Suzanne O’Connell ◽  
Cary Rivard ◽  
Mary M. Peet ◽  
Chris Harlow ◽  
Frank Louws
Keyword(s):  
Fruit Quality ◽  
Gray Leaf Spot ◽  
High Tunnel ◽  
Horticultural Crops ◽  
Fruit Cracking ◽  
Weather Events ◽  
High Tunnels ◽  
Season Extension ◽  
Blossom End Rot ◽  
Field Systems

Organic and heirloom tomatoes are high-value products with growing demand but there are many challenges to successful cultivation. A systems comparison study was carried out to evaluate the production of the popular heirloom tomato ‘Cherokee Purple’ (Solanum lycopersicum L.) under high tunnel and open field systems in North Carolina from 2007 to 2008. Management of the high tunnel (i.e., temperature and irrigation), weather events as well as pest and disease pressure influenced crop quality and yield. The high tunnel and field systems achieved similar total yields (100 t·ha−1) the first season but yields were 33% greater in the high tunnel system than the field system in the second year (100 t·ha−1 and 67 t·ha−1, respectively). Both years, the tomatoes were planted in high tunnels 1 month earlier and harvested 3 weeks earlier than the field. The accumulation of ≈1100 growing degree-days (GDD) was required in both systems before 50% of the fruit was harvested. Fruit cracking, cat-facing, blossom-end rot, and insect damage were the major categories of defects in both systems. Incidence of both Tomato Spotted Wilt Virus (TSWV) and Gray Leaf Spot (GLS) were lower in the high tunnel compared with the field in 2007 and 2008, respectively. Results of this study suggest that with proper management techniques, high tunnels can optimize yields, increase fruit quality, and provide season extension opportunities for high-value horticultural crops.

scholarly journals Ornamental Kale as a Cut Flower under High Tunnels in the Southeastern United States

2018 ◽  
Vol 28 (6) ◽  
pp. 855-862
Author(s):  
Suzanne O’Connell
Keyword(s):  
United States ◽  
Southeastern United States ◽  
Stem Length ◽  
Cut Flower ◽  
Planting Dates ◽  
High Tunnel ◽  
Color Changes ◽  
Air Temperatures ◽  
High Tunnels ◽  
Ornamental Kale

The potential to expand the production of ornamental kale (Brassica oleracea var. acephala) grown as a specialty cut flower in the southeastern United States appears promising, especially for the winter holidays. This 2-year replicated study investigated the effects of two fall plantings and three cultivars on ornamental kale yields grown under organic high tunnels. In addition to the production study, informal interviews of local florists were conducted. The earlier planting dates resulted in longer stem lengths (≥5 cm) and fewer days to harvest (≥5 days) across both seasons. Commercial stem length goals were not achieved (≥60 cm) but local florists did not appear to have the same standards (≥31 cm). The cultivars Crane Bicolor and Lucir White had longer stems and larger heads than Crane Red. Our high tunnel system provided favorable air temperatures for vegetative growth from late September through early November indicating an earlier planting date may be possible. Commonly accepted nighttime temperatures required to induce color changes occurred in early to mid-November during our study period.

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 Late-season High Tunnel Planting of Specialty Cut Flowers in the Midwestern United States Influences Yield and Stem Quality

2016 ◽  
Vol 26 (3) ◽  
pp. 338-343 ◽  
Author(s):  
W. Garrett Owen ◽  
Alyssa Hilligoss ◽  
Roberto G. Lopez
Keyword(s):  
United States ◽  
Early Summer ◽  
Stem Length ◽  
Production Environment ◽  
Cut Flowers ◽  
Long Distance ◽  
Midwestern United States ◽  
High Tunnel ◽  
Late Season ◽  
Stem Quality

Production and market value of U.S. grown specialty cut flowers has increased over the past several years due to stem quality issues related to long-distance transport, regional proximity to market centers, and consumer’s willingness to purchase locally. Cut flowers are traditionally grown in field or greenhouse environments; however, high tunnels provide an alternative production environment and a number of cultural and economic advantages. Specialty cut flower species ‘Campana Deep Blue’ bellflower (Campanula carpatica), bells of ireland (Moluccella laevis), ‘Bombay Firosa’ celosia (Celosia cristata), ‘Amazon Neon Purple’ dianthus (Dianthus barbatus), ‘Fireworks’ gomphrena (Gomphrena pulchella), ‘Vegmo Snowball Extra’ matricaria (Tanacetum parthenium), and ‘Potomac Lavender’ snapdragon (Antirrhinum majus) were planted in both field and high tunnel environments during the late season (early summer) in the midwestern United States. Compared with field production, high tunnel production yielded 9.1 stems/m2 (75%) for bells of ireland and 9.5 cm (15%), 16.8 cm (16%), 6.7 cm (44%), and 6.3 cm (19%) longer stems for bells of ireland, celosia, gomphrena, and matricaria, respectively. Additionally, stem length and caliper was greatest for high tunnel–grown bells of ireland, celosia, and dianthus. Our results indicate that late-season planting and production in a high tunnel is suitable for most of the species we investigated.

scholarly journals Rowcovers and High Tunnels Enhance Crop Production in the Northeastern United States

1993 ◽  
Vol 3 (1) ◽  
pp. 92-95 ◽  
Author(s):  
Otho S. Wells ◽  
J. Brent Loy
Keyword(s):  
Return On Investment ◽  
Capital Investment ◽  
Crop Production ◽  
Environmental Control ◽  
Growing Season ◽  
Management Program ◽  
High Tunnel ◽  
High Tunnels ◽  
Season Extension ◽  
Selection Of

Crop growth is enhanced with the use of relatively inexpensive rowcovers and high tunnels. Even though these structures do not provide the same degree of environmental control as greenhouses, they modify the climate sufficiently to lengthen the growing season from 1 to 4 weeks in the spring and 2 to 8 weeks in the fall. Rowcovers generally remain over a crop for 2 to 4 weeks, whereas a high tunnel may function for an entire growing season. Both systems require a relatively low capital investment, provide a good return on investment, and improve the ability of new growers to succeed in the crop production business. The selection of either rowcovers or high tunnels will depend on the management program of a grower; however, both growing systems potentially are economically viable means of season extension.

scholarly journals High Tunnel Production of Tomatoes for Season Extension in Southeast Alabama

Horticulturae ◽  
2020 ◽  
Vol 6 (4) ◽  
pp. 94
Author(s):  
Bradley Reeder ◽  
Wheeler Foshee ◽  
Eugene Blythe ◽  
Raymond Kessler ◽  
Joseph Kemble ◽  
...  
Keyword(s):  
Total Yield ◽  
Early Spring ◽  
Planting Date ◽  
Tomato Production ◽  
High Tunnel ◽  
Solanum Lycopersicum L ◽  
Harvest Dates ◽  
High Tunnels ◽  
Season Extension ◽  
Marketable Fruit

A series of experiments was conducted to evaluate variety selection and planting date for spring and fall season extension of tomato (Solanum lycopersicum L. (syn.: Lycoperisicon esculentum Mill.)) production in high tunnels in southeast Alabama. ‘BHN 640’, ‘Florida 91’, ‘Sun Leaper’, and ‘Carolina Gold’ were evaluated for early spring production in 2004. These varieties did not differ in total yield of marketable fruit; however, ‘BHN 640’ and ‘Sun Leaper’ produced higher early yields compared with the other varieties. ‘BHN 640’ and ‘Florida 91’ were evaluated for late-season extension in fall 2004. ‘BHN 640’ produced higher yields of large, medium, total marketable, and unmarketable fruit grades than ‘Florida 91’. In a study conducted in early 2005, higher yields of marketable fruit were produced from the first planting date (31 January) compared with the final of four planting date (25 Mar.). In summary, results indicated that season extension of tomato production in high tunnels was possible, with harvests three weeks earlier in the spring and 12 weeks later in the fall compared with typical field harvest dates. These early yields can command prices from $3.30 to $4.40US per kg of fruit.

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