Design of a Single Truss Tomato Production System (Sttps)

Giacomelli, G. A.; Ting, K. C.; Mears, D.R.

doi:10.17660/actahortic.1994.361.6

Cited by 16 publications

(11 citation statements)

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“…This system could select the tomato cultivar and control the cultivation management of tomato fruit production throughout the year and decreased the risk of disease and pest incidence. A single-truss tomato production system, which is the simplest cultivation system utilizing a low truss number and high plant density, is utilized with supplemental lighting (Lu et al, 2012a, b;McAvoy et al, 1988McAvoy et al, , 1989, tomato production with high soluble solids (Araki et al, 2009;Sakamoto et al, 1999) and automated cultivation (Giacomelli et al, 1994;Okano et al, 2001). However, there are few reports of a threetruss tomato production system in which the yield per plant can be higher than that of a single-truss system.…”

Section: Introductionmentioning

confidence: 99%

Improved Light Conditions at the Fruit Truss Accelerate Harvest Time and Enhance Ascorbic Acid Concentration in a Low-truss, High-density Tomato Production System

Johkan

Ishii

Maruo

et al. 2013

J. Japan. Soc. Hort. Sci.

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Light conditions are poor around the lower trusses of tomato plants in a low truss number, high plant density production system. We determined the effects of leaf rearrangements above the fruit trusses on fruit maturation and quality in tomato plants pinched above the third truss and cultivated under a high-density growing system. Integrated solar radiation at first and second fruit trusses and surface temperature of fruits at second fruit truss were increased in plants treated with leaf rearrangements above the trusses compared with those of the control, and the maturation of fruits at the third truss treated with leaf rearrangement was 4.6 days earlier than that of the control. The concentration of ascorbic acid (AsA) in fruits of plants treated with leaf rearrangement was higher than that of control fruits. However, leaf rearrangement had no effect on yield and Brix of the fruit. These results indicated that higher solar radiation together with leaf rearrangement promoted fruit maturation and increased AsA content in the fruit of lower trusses of tomato plants cultivated under a low truss number, high plant density growing system.

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Section: Introductionmentioning

confidence: 99%

Improved Light Conditions at the Fruit Truss Accelerate Harvest Time and Enhance Ascorbic Acid Concentration in a Low-truss, High-density Tomato Production System

Johkan

Ishii

Maruo

et al. 2013

J. Japan. Soc. Hort. Sci.

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“…The single‐truss system is a method of tomato cropping (Giacomelli et al ., 1994) in which plants have their growing point removed after the production of 2–3 leaves above the first fruit cluster, and all lateral shoots are removed as the plants are grown at a high density of 12–15 plants m −2 to achieve maximum yields. The most interesting advantage of single‐truss crop production is the short time from planting to harvest.…”

Section: Discussionmentioning

confidence: 99%

Dual protection of hydroponic tomatoes from rhizosphere pathogens Ralstonia solanacearum and Fusarium oxysporum f.sp. radicis‐lycopersici and airborne conidia of Oidium neolycopersici with an ozone‐generative electrostatic spore precipitator

et al. 2007

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An ozone-generative electrostatic spore precipitator was developed to protect nursery-stage seedlings of tomato from both airborne conidia of powdery mildew ( Oidium neolycopersici ) and root-infecting pathogen propagules of bacterial wilt ( Ralstonia solanacearum ) and fusarium crown and root rot ( Fusarium oxysporum f.sp. radicis-lycopersici ). The device was a cylindrical electrostatic spore precipitator (S2 cylinder) in which a positively charged straight conductor wire insulated with a transparent acrylic cylinder originated from a spore-precipitation cylinder (S1 cylinder) designed to physically control airborne conidia of tomato powdery mildew in greenhouses. The S2 cylinder consisted of two sites for conidial attraction and ozone production. The site for ozone production was located at the end of the cylinder, where an earthed copper conductor ring (as a cathode) was attached to the edge of the cylinder, responding to the anodal tip of a positively charged central conductor wire. Distinct types of discharge (corona, corona-streamer, streamer and arc discharge) occurred between the two electrodes and were dependant on the voltages applied to the wire and the distances between the electrodes. The highest ozone production was observed through streamer discharge. The remaining portion of the S2 cylinder, which was dielectrically polarized by a positively charged wire, created a non-uniform electric field outside the cylinder to attract conidia that came into the generated field. Hydroponic culture troughs to raise tomato seedlings in a nursery greenhouse were paralleled with S2 cylinders. The aim was to control rhizosphere pathogens R. solanacearum and F. oxysporum f.sp. radicis-lycopersici and to prevent them entering the hydroponic system during cultivation, while at the same time trapping O. neolycopersici conidia in the spaces between the cylinders. The results indicated that susceptible tomato plants in culture troughs attached to the S2 cylinders remained uninfected by both rhizosphere and aerial pathogens throughout the experimental period (2 and 3 weeks, respectively). This suggests that the present system will enable the dual control of both these pathogens in hydroponic systems in greenhouses.Keywords : fusarium crown and root rot of tomato, ozone production, physical control of pathogens, polarized dielectric insulator, tomato bacterial wilt, tomato powdery mildew IntroductionWhile a greenhouse environment is excellent for growing tomatoes, it is even better for propagating disease-causing organisms. Because of the higher temperature, higher relative humidity and lush green foliage, diseases are constant threats once they enter a greenhouse. Management of disease at the seedling nursery stage is important to prevent the establishment of diseases that may affect cropping. In greenhouses, powdery mildew of tomato ( Oidium neolycopersici ) has frequently been detected on hypocotyls, cotyledons and first leaves of nursery-stage seedlings, as well as on well-developed plants in the propagation stage (M...

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“…Production of roses, gerbera, chrysanthemum and even tomato has been evaluated in the Netherlands. However success of these systems is not guaranteed and research into this direction is required (Blandini et al, 2008;Hidaki et al, 2008;Giacomelli et al, 1994;van Weel et al, 1991).…”

Section: System Logisticsmentioning

confidence: 99%

Innovation in Greenhouse Engineering

Giacomelli¹,

Castilla²,

Henten³

et al. 2008

Acta Hortic.

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Innovations in greenhouse engineering are technical developments which help evolve the state-of-the-art in CEA (Controlled Environment Agriculture). They occur in response to the operational demands on the system, and to strategic changes in expectations of the production system. Influential operational factors include availability of labor, cost for energy, logistics of transport, etc. Influential strategic factors result from broader, regional issues such as environmental impact, product safety and consistency, and consumer demand. These are industry-wide concerns that have the effect of changing the production system in the long term. Global issues are becoming more influential on greenhouse production sustainability, and include less tangible issues such as social acceptance, political stability, quality of life benefits, and environmental stewardship. These offer much more complex challenges and are generally beyond the realm of engineering. However global issues do affect greenhouse engineering innovation. The most effective innovations in greenhouse engineering design, operations and management, will incorporate input from partnerships with the academic, private and public sectors of society. Furthermore, successful applications include, at least to some degree a multidisciplinary approach of the sciences, engineering and economics, while for ultimate success and sustainability, societal and political support must also be attained. For this overview of innovation in greenhouse engineering a list of influential factors, or "driving forces" affecting the development, application, evolution and acceptance of greenhouse systems have been described. The factors are similar for all greenhouse systems around the world, as they include the plant biology of the crop, the physical components of the structure and production system hardware, the management and logistics of labor and materials, and the mechanism of marketing the crop. Each greenhouse system, wherever located, must resolve similar problems for its specific application. The magnitude of the factors and their relative local importance are different for the specific sites. The design response will be introduced and related to the factors, as examples of innovation.

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Design of a Single Truss Tomato Production System (Sttps)

Cited by 16 publications

References 0 publications

Improved Light Conditions at the Fruit Truss Accelerate Harvest Time and Enhance Ascorbic Acid Concentration in a Low-truss, High-density Tomato Production System

Improved Light Conditions at the Fruit Truss Accelerate Harvest Time and Enhance Ascorbic Acid Concentration in a Low-truss, High-density Tomato Production System

Dual protection of hydroponic tomatoes from rhizosphere pathogens Ralstonia solanacearum and Fusarium oxysporum f.sp. radicis‐lycopersici and airborne conidia of Oidium neolycopersici with an ozone‐generative electrostatic spore precipitator

Innovation in Greenhouse Engineering

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