Greenhouse climate control: an approach for integrated pest management

Tantau, H.-J.; Lange, Doris

doi:10.1016/s0168-1699(03)00017-6

Cited by 26 publications

(20 citation statements)

References 2 publications

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“…Consequently, the regulation of temperature and humidity conditions in the greenhouse plays a key role in gray mold man agement (6,12,13,18,19,22). Under favorable conditions, large numbers of conidia are produced on lesions, blighted tissues, and plant debris.…”

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confidence: 99%

Relationship of Airborne Botrytis cinerea Conidium Concentration to Tomato Flower and Stem Infections: A Threshold for De-leafing Operations

Carisse

Heyden

2015

Plant Disease

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Carisse, O., and Van der Heyden, H. 2015. Relationship of airborne Botrytis cinerea conidium concentration to tomato flower and stem infections: A threshold for de-leafing operations. Plant Dis. 99:137-142.Gray mold, caused by Botrytis cinerea, is an important threat for toma to greenhouse producers. The influence of airborne conidia concentra tion (ACC) on both flower and stem-wound infections was studied in a greenhouse maintained at a temperature of 15, 20, or 25°C using dis eased tomato leaves as the unique source of dry inoculum. Spore sam plers were used to monitor ACC, and a previously developed real-time qPCR assay was used to quantify airborne B. cinerea conidia. The proportion of infected flowers remained low at ACC < 10 conidia/m3; above this concentration, flower infection increased with increasing ACC. The influence of ACC on proportion of infected flowers was well described by a sigmoid model (R2 = 0.90 to 0.92). The mean propor tion of infected stem wounds over the three trials was 0.021; no infect ed wounds were observed at ACC < 100 conidia/m3. Based on logistic regression, the probability that a stem becomes infected increased rapidly with mean probabilities of 0.24 and 0.87 at ACCs of 315 and 3,161 conidia/m3, respectively. The results suggest that the amount of airborne B. cinerea inoculum in the greenhouse is often above the action threshold for flower infection and that monitoring airborne B. cinerea inoculum could help in timing de-leafing operations.Botrytis cinerea is a pathogenic and necrotrophic fungus of sev eral fruit and vegetable crops that causes pre-and postharvest rot. Gray mold, caused by B. cinerea, is one of the most commonly occurring diseases in greenhouse vegetable crops in Canada (1), which are among the country's highest-value horticultural com modities. Total yield losses attributed to gray mold are significant and average 10 to 20% (1). However, when conditions are favora ble for disease development, crop losses can reach up to 40% at the end of a cropping period (1). On tomato (Lycopersicon esculentum Mill.), B. cinerea can infect all aerial plant parts, although most crop losses are due to flower infections, which result in direct loss es of fruit, and to stem-wound infections, which may induce the death of an entire plant, causing losses of fruit production over several months (14,21,27).Tomato plants are susceptible to B. cinerea infection at any growth stage, but tender, recently injured, and senescing or dead tissues are most susceptible. Under favorable conditions, large numbers of conidia are produced on lesions, blighted tissues, and plant debris. These conidia are disseminated by air currents and, to a lesser extent, by splashing water, and are responsible for initiat ing new disease cycles. In addition to the amount of conidia, dis ease progress is influenced by temperature and relative humidity. Briefly, optimal conditions for infection are tissue wetness or high relative humidity (>90%) for at least 8 h at a temperature of 15 to 20°C. B. cinerea colonizes i...

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confidence: 99%

Relationship of Airborne Botrytis cinerea Conidium Concentration to Tomato Flower and Stem Infections: A Threshold for De-leafing Operations

Carisse

Heyden

2015

Plant Disease

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“…Moreover, a negative impact of radiation within the length of UV waves was reported. Tantau and Lange (2003) developed an algorithm of control of the heating system and ventilation operation in a greenhouse with such parameters to exclude the danger of possible funghi diseases in a facility. The developed algorithm included the area of leaves of cultivated plants.…”

Section: Increase Of Insulation Of the Facility Roofmentioning

confidence: 99%

Pro-Ecological Energy Solutions which Minimize The Use of Fossil Fuels in The Roofed Facilities

Kurpaska

2016

Agricultural Engineering

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The paper, based on the materials of the Main Statistical Office, presents a present state of use of renewable energy sources in the Polish power industry. Moreover, based on the available data, the amount of energy used for roofed production was estimated (heat, electric energy). Additionally, the amount of emission to atmosphere of hazardous substances (sulphur oxides, lead oxides, carbon dioxide and carbon oxide, dust and benzo(a) piren) was determined. Based on the available literature, technical solutions, which are analysed in various scientific centres, which aim at decrease of fuel consumption, were presented. A detailed analysis focused on the possibility of substituting fossil fuel with another heat source, effectiveness of energy use, increase of insulation ability of the facility roof and modification of greenhouses structures. From among the available energy sources, problems and its possible use in horticultural production were presented. The following energy sources were analysed: geothermal energy, sun and wind energy, biomass, heat pump; co-generative system (triple co-generative). Also barriers and possibilities of use of own boiler house and heat from central heating grid as energy source were analysed.

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“…An evapo-transpiration related control method to prevent Ca-deficiency, plant water stress, and airborne fungal diseases in Chrysanthemums was described by Körner and Challa (2004). The idea that control can be used to reduce pesticide use is also elaborated in Tantau and Lange (2003).…”

Section: Controlling Fast Crop Processes; the "Speaking Plant"mentioning

confidence: 99%

Optimal Greenhouse Cultivation Control: Survey and Perspectives

Straten

Henten

2010

IFAC Proceedings Volumes

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Abstract:A survey is presented of the literature on greenhouse climate control, positioning the various solutions and paradigms in the framework of optimal control. A separation of timescales allows the separation of the economic optimal control problem of greenhouse cultivation into an off-line problem at the tactical level, and an on-line problem at the operational level. This paradigm is used to classify the literature into three categories: focus on operational control, focus on the tactical level, and truly integrated control. Integrated optimal control warrants the best economical result, and provides a systematic way to design control systems for the innovative greenhouses of the future. Research issues and perspectives are listed as well.

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Greenhouse climate control: an approach for integrated pest management

Cited by 26 publications

References 2 publications

Relationship of Airborne Botrytis cinerea Conidium Concentration to Tomato Flower and Stem Infections: A Threshold for De-leafing Operations

Relationship of Airborne Botrytis cinerea Conidium Concentration to Tomato Flower and Stem Infections: A Threshold for De-leafing Operations

Pro-Ecological Energy Solutions which Minimize The Use of Fossil Fuels in The Roofed Facilities

Optimal Greenhouse Cultivation Control: Survey and Perspectives

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