Publications: Dr. Wolfram Spreer

Title	Year	Literature Type	Authors
Allicin and total phenolic content and antioxidant activity in conventional and organic garlic ISHS Acta Horticulturae 1125	2016	Conference proceedings	Wongsa, P; Spreer, W; Sruamsiri, P; Müller, J
Alternate furrow irrigation of four fresh-market tomato cultivars under semi-arid condition of Ethiopia – Part I: Effect on fruit yield and quality Journal of Agriculture and Rural Development in the Tropics and Subtropics	2016	Journal contribution (peer reviewed)	Bogale, A; Spreer, W; Gebeyehu, S; Aguila, M; Müller, J
Analysis of Biochar from Different Kinds of Feedstock and Varying Pyrolysis Temperature I: Chemical and Microscopic Properties Journal of Agriculture	2016	Journal contribution (peer reviewed)	Schweikle, J; spreer, W; Sringarm, K; Karaj, S; Satasup, C; Müller, J
Analysis of Biochar from Different Kinds of Feedstock and Varying Pyrolysis Temperature II: Analysis of Biochar from a Local Kiln Journal of Agriculture	2016	Journal contribution (peer reviewed)	Tyayon, P; Spreer, W; Wuttisathitthaworn, N; Lammwut, K; Karaj, S; Intani, K; Sringarm, K; Santasup, C; Müller, J
Effect of drying methods on anti-oxidative potential of garlic (Allium sativum L.) ISHS 1126	2016	Conference proceedings	Wongsa, P; Spreer, W; Müller, J; Sruamsiri, P
Influence of water supply on CO2 concentration in the rootzone of split-root potted Longan trees Intelligent Robotics and Applications	2016	Conference proceedings	Wiriya-Alongkorn, W.; Spreer, W.; Ongprasert, S.; Spohrer, K.; Müller, J.
Development and assessment of different modeling approaches for size-mass estimation of mango fruits (Mangifera indica L., cv. ‘Nam Dokmai’) Computers and Electronics in Agriculture	2015	Journal contribution (peer reviewed)	Schulze, K; Nagle, M; Spreer, W; Mahayothee, B; Müller, J
Echtzeitmessung von Wurzelraum-CO2 und dessen Potenzial für die Bewässerungssteuerung Landtechnik	2015	Journal contribution (peer reviewed)	Spohrer, Kluas; Zia-Khan, Shamaila; Spreer, Wolfram; Müller, Joachim
Effect of Dust Deposition on Stomatal Conductance and Leaf Temperature of Cotton in Northwest China Water	2015	Journal contribution (peer reviewed)	Zia-Khan, S; Spreer, W; Pengnian, Y; Zhao, X; Othamnli, H; He, X
In-Field Biochar Production from Crop Residues: An Approach to Reduce Open Field Burning in Northern Thailand Book of Abstracts	2015	Poster	Schweikle, J; Spreeer, W; Intani, K; Shafer, M; Tiyayon, P; Saehang, S; Santasup, C; Sringarm, K; Wiriya, W; Müller, J
Properties of bio-char from different feedstock produced in a low cost kiln Conference Proceedings	2015	Contribution to conference	Tiyayon, P Wuttisathittaworn, N Lammawut, K Spreer, W Santasup, C Sringarm, K Karaj, S Intani, K Müller, J
Real-time detection of root zone-CO2 and its potential for irrigation scheduling Landtechnik	2015	Journal contribution (peer reviewed)	Spohrer, Kluas; Zia-Khan, Shamaila; Spreer, Wolfram; Müller, Joachim
Modelling the relationship between peel colour and the quality of fresh mango fruit using Random Forests Journal of Food Engineering	2014	Journal contribution (peer reviewed)	Fukuda, S; Yasunaga, E; Nagle, M; Yuge, K; Sardsud, V; Spreer, W; Müller, J
Analysis of Assam Tea Processing in Small Scale Factories in the Highlands of Nothern Thailand	2013	Poster	Johannson, J; Theppakorn, T; Sardsud, V; Spreer, W; Naphrom, D; Müller, J
Application of BP neural network in predicting winter wheat yield based on thermography technology Spectroscopy and Spectral Analysis	2013	Journal contribution (peer reviewed)	Hu, Z; Zhang, L; Wang, Y; Zia, S; Zeng, A; Song, J; Liu, Y; Spreeer, W; Müller, J; He, X.
Comparison of Changes in Post-Harvest Quality Deterioration of Mango Fruits between Thailand-Fukuoka and Okinawa-Fukuoka Transportations Acta Horticulurae	2013	Journal contribution (peer reviewed)	Yasunaga, E; Fukuda, S; Sardsud, M; Spreer, W; Wanwarang, P
Comparison of postharvest quality changes of export mango fruit from different harvest sites in Thailand Horticulturae	2013	Journal contribution (peer reviewed)	Yasunaga, E; Fukuda, S; Sardsud, M; Spreer, W; Wanwarang, P
Detecting drought stress in longan tree using thermal imaging Maejo International Journal of Science and Technology	2013	Journal contribution (peer reviewed)	Wirya-Alongkorn, W; Spreer, W; Ongaprasert, S; Spohrer, K; Pankasemsuk, T; Müller, J
Evaluation of Soil Water Management Difference in Mango Orchards between Thailand and Japan American Journal of Plant Sciences	2013	Journal contribution (peer reviewed)	Yuge, K; Yasunaga, E; Fukuda, S; Spreer, W; Sardsud, V; Pattanopo, W
Infrared Thermal Imaging as a Rapid Tool for Identifying Water-Stress Tolerant Maize Genotypes of Different Phenology Journal of Agronomy and Crop Science	2013	Journal contribution (peer reviewed)	Zia,S; Romano, G; Spreer, W; Sanchez, C; Cairns, J; Araus, JL; Müller, J
Mango (Mangifera indica L. cv. Nam Dokmai) production in Northern Thailand - Costs and returns under extreme weather conditions and different irrigation treatments Agricultural Water Management	2013	Journal contribution (peer reviewed)	Schulze, K; Spreer, W; Keil, A; Ongaprasert, S; Müller, J
Mango and Longan Production in Northern Thailand: The Role of Water Saving Irrigation and Water Stress Monitoring Sustainable Land Use and Rural Development in Southeast Asia: Innovations and Policies for Mountainous Areas	2013	Book chapter	Spreer, W; Schulze, K; Ongagrasert, S; Wiriya-Alongkorn, W; Müller, J
Protected cultivation of tomato to enhance plant productivity and reduce pesticide use	2013	Contribution to conference	Sringarm, K; Max, J; Saehang, S; Spreeer, W; Kumpiro, S; Müller, J
Random Forests modelling for the estimation of mango (Mangifera indica L. cv. Chok Anan) fruit yields under different irrigation regimes Agricultural Water Management	2013	Journal contribution (peer reviewed)	Fukuda, S; Spreer, W; Yasunaga, E; Yuga, K; Sardsud, V; Müller, J
A novel optical approach to monitor color changes of Mango peel for machine-vision applications	2012	Contribution to conference	Nagle, M; Romano, G; Intani, K; Spreer, W; Mahayothee, B; Sardsus, V; Müller, J
Application of an Equation for Size-Mass-Correlation for Nam Dokmai Mangos for Automated Sorting Processes	2012	Contribution to conference	Schulze, K; Srikasetsaraku, U; Spreer, W; Nagle, M; Sarsud, V; Müller, J
Assessing crop water stress of winter wheat by thermography under different irrigation regimes in North China Plain International Journal of Agricultural and Biological Engineering	2012	Journal contribution (peer reviewed)	Zia, S; Wenyong, D; Spreer, W; Spohrer, K; Xiongkui, H; Müller, J
Effect of Post-Harvest Distribution Environment on Quality Deterioration of Mango Fruits Acta Horticulturae	2012	Journal contribution (peer reviewed)	Yasunaga, E; Yuge, K; Fukuda, S; Sardsud, V; Spreer, W
Evaluation of the Effect of the Soil Water Environment in Mango Fields on the Fruit Quality Acta Horticulturae	2012	Journal contribution (peer reviewed)	Yuge, K; Yasunaga, E; Fukuda, S; Spreer, W; Sardsud, V; Pattanopo, W
Harvest maturity detection for ‘Nam Dokmai #4’ mango fruit (Mangifera indica L.) in consideration of long supply chains Postharvest Biology and Technology	2012	Journal contribution (peer reviewed)	Kienzle, S; Sruamsiri P; Carle, R; Sirisakulwat S; Spreer W; Neidhart S
Modelling the influence of water supply on mango yield and fruit size using Random Forests	2012	Contribution to conference	Fukuda S; Spreer W; Yasunaga E; Yuge K; Müller J
Biomass formation and nutrient partitioning in potted longan trees under partial rootzone drying Acta Horticulturae	2011	Journal contribution (peer reviewed)	Srikasetsarakul U; Spreer W; Ongprasert S; Wiriya-Alongkorn W; Sringarm K; Sruamsiri P; Müller J
Comparison of two thermo cameras of different price segments in terms of their suitability for monitoring water stress responses	2011	Contribution to conference	Jantika, W; Wiriya-alongkorn, W; Schulze, K; Ongprasert, S; Spreer, W; Müller, J
Development of a low-cost tensiometer driven irrigation control unit and evaluation of its suitability for irrigation of lychee trees in the uplands of Northern Thailand in a participatory approach Journal of Horticulture and Forestry	2011	Journal contribution (peer reviewed)	Pinmanee S; Spreer W; Spohrer K; Ongprasert S; Müller J
Effects of partial rootzone drying irrigation on proline content and yield of mango in a commercial orchard	2011	Contribution to conference	Srikasetsarakul, U; Sringarm, K; Sruamsiri, P; Ongprasert, S; Spreer, W; Schulze, K; Müller, J
Estimating the mass of mango fruit (Mangifera indica, cv.ChokAnan) from its geometric dimensions by optical measurement Computers and Electronics in Agriculture	2011	Journal contribution (peer reviewed)	Spreer W; Müller J
Harvest maturity specification for mango fruit (Mangifera indica L. ‘ChokAnan’) in regard to long supply chains Postharvest Biology and Technology	2011	Journal contribution	Kienzle S; Sruamsiri P; Carle R; Sirisakulwat S; Spreer W; Neidhart S
Introduction of micro-sprinkler systems to mango production into the uplands Northern Thailand	2011	Contribution to conference	Spreer W; Schulze K; Srikasetsarakul U; Ongprasert S; Müller J
Monitoring physiological responses to water stress in two maize varieties by infrared thermography International Journal of Agricultural and Biological Engineering	2011	Journal contribution	Zia S; Sophrer K; Du W; Spreer W; Romano G; Xiongkui H; Müller J
Monitoring water stress responses of Ipomoea Aquatica (Forssk.) by thermal imaging in different soil matierals of Northern Thailand	2011	Contribution to conference	Schulze, K; Wanwisa, J; Spreeer, W; Ongprasert, S; Wiriya-Alngkorn, W; Müller, J
Rapid phenotyping of different maize varieties under drought stress by using thermal images Proceedings CD of the CIGR International Symposium on "Sustainable Bioproduction - Water, Energy and Food"	2011	Contribution to conference	Romano G; Zia S; Spreer W; Cairns J; Araus J; Müller J
Understanding the farmers' behaviour towards water saving irrigation technologies	2011	Contribution to conference	Zia, S; Wang, X; Spreer, W; Du, W; He, X; Müller, J
Use of thermography for high throughput phenotyping of tropical maize adaptation in water stress Computers and Electronics in Agriculture 79	2011	Journal contribution (peer reviewed)	Romano G; Zia S; Spreer W; Sanchez C; Cairns J; Araus J L; Müller J
Utilization of Thermal Infrared Image for Inversion of Winter Wheat Yield and Biomass Spectroscopy and Spectral Analysis	2011	Journal contribution (peer reviewed)	Du, W; Zhang, L; Hu, Z; Zia, S; Zeng, A; Song, J; Liu, Y; Spreer, W; Müller, J; He, X.
Aeroponics to monitor root growth of longan trees Acta Horticulturae	2010	Journal contribution (peer reviewed)	Wiriya-Alongkorn W; Ongprasert S; Spreer W; Müller T; Srikasetsarakul U
Deficiency symptoms of Zn and B of longan tree grown with sand culture Agricultural Sci. J.	2010	Journal contribution (peer reviewed)	Wiriya-Alongkorn W; Ongprasert S; Spreer W; Römheld V
Degradation and movement of chlorate in longan plantations Acta Horticulturae	2010	Journal contribution	Ongprasert S; Wiriya-Alongkorn W; Spreer W
Effect of wind and radiation on the crop water stress index derived by infrared thermography Proceedings Tropentag 2010	2010	Contribution to conference	Zia S; Spohrer K; Wenyong D; Spreer W; He X; Müller J
In-field measurement of fruit respiration for determining climacteric activity and harvest maturity of mango Proceedings of the XVIIth World Congress of the International Commission of Agricultural Engineering (CIGR)	2010	Contribution to conference	Nagle M; Spreer W; Mahayothee B; Janjai S; Sardsud V; Müller J
Mapping of soil salinity and clay content based on electromagnetic induction measurements by EM38 Proceedings of the XVIIth World Congress of the International Commission of Agricultural Engineering (CIGR)	2010	Contribution to conference	Zia S; Wenyong D; Spreer W; He X; Müller J
Mapping of soil variability for increasing precision with managed drought stress phenotyping Proceedings of the XVIIth World Congress of the International Commission of Agricultural Engineering (CIGR)	2010	Contribution to conference	Romano G; Spreer W; Cairns J; Zia S; Orsini E; Weber V; Melchinger A E; Müller J
The factors affecting longan flower induction by chlorate Acta Horticulturae	2010	Journal contribution	Ongprasert S; Wiriya-Alongkorn W; Spreer W
Economic evaluation of different irrigation regimes in mango production in Northern Thailand Acta Horticulturae	2009	Journal contribution	Satienperakul K, Manochai P, Ongprasert S, Spreer W, Müller J
Effect of deficit irrigation on fruit growth and yield of mango (Mangifera indica, L.) in Northern Thailand Acta Horticulturae	2009	Journal contribution	Spreer W, Müller J, Hegele M, Ongprasert S
Wind speed affects drought stress monitoring in mango and longan by thermal photography Proceedings of the 6th International Symposium on Irrigation of Horticultural Crops	2009	Contribution to conference	Spreer W; Wiriya-Alongkorn W; Spohrer K; Ongprasert S; Müller J
Yield and fruit development in mango (Mangifera indica L., cv. Chok Anan) under different irrigation regimes Agricultural Water Management	2009	Journal contribution	Spreer W, Ongprasert S, Hegele M, Wünsche J N, Müller J
Applicability of deficit irrigation strategies in lychee and longan production in Thailand The Uplands Program - Book of Abstracts	2008	Contribution to conference	Spreer W, Satienperakul K, Ongprasert S, Müller J
Boron and Zinc fertilisation to compensate negative effects of photooxidative stress in Lychee (Litchi chinensis Sonn.) Proceedings Tropentag 2008	2008	Contribution to conference	Will S, Tisch C, Schütt M, Spreer W, Wiriya-Alongkorn W, Müller T, Römheld V
Degradation and movement of chlorate in longan plantations The Uplands Programm - Book of Abstracts	2008	Contribution to conference	Ongprasert S, Wiriya-Alongkorn W, Spreer W, Römheld V
Efficiency of boron foliar fertilization in Lychee (Litchi chinensis Sonn.) Proceedings of the VIth International ISHS Symposium	2008	Contribution to conference	Will S, Spreer W, Müller T, Römheld V
Influence of different irrigation regimes on fruit growth, yield and quality parameters of mango (Magnifera indica, L. cv. 'Chok Anan')	2008	Doctoral thesis	Spreer W
Alternative techniques for water-saving irrigation and optimised fertigation in fruit production in Northern Thailand Sustainable land use in mountainous regions of Southeast Asia: Meeting the challenges of ecological, socio-economic and cultural diversity	2007	Book chapter	Ongprasert S, Spreer W, Wiriya-Alongkorn W, Ussahatanonta S, Köller K
Deficit irrigation strategies as a contribution to sustainable increase in water use efficiency - a practical way for farmers?	2007	Contribution to conference	Spreer W, Müller J
Effect of regulated deficit irrigation and partial rootzone drying on the quality of mango fruits (Mangifera indica, L., cv. 'Chok Anan') Agricultural Water Management	2007	Journal contribution	Spreer W, Nagle M, Neidhart S, Carle R, Ongprasert S,Müller J
Effectiveness of micro-nutrient fertilisation in off-season Longan procudtion in Northern Thailand. Tropentag 2007 - Book of Abstracts	2007	Contribution to conference	Wiriya-Alongkorn W., Roygrong S., Spreer W., Ongprasert S., Römheld V., Müller T.
Effectiveness of micro-nutrient fertilisation in off-season longan production in Northern Thailand Tagungsband Tropentag 2007	2007	Contribution to conference	Wiriya-Alongkorn W, Roygrong S, Spreer W, Ongprasert S, Römheld V, Müller T
Management requirements of photovoltaic pumping systems for irrigation in Jordan	2007	Contribution to conference	Spreer W, Müller J
Partial canopy shading as a remedy of leaf chlorosis and its influence on flowering of Lychee trees Tropentag 2007 - Book of Abstracts	2007	Contribution to conference	Roygrong S., Spreer W., Wiriya-Alongkorn W., Sruamsiri P., Müller T., Römheld V.
Partial canopy shading as a remedy of leaf chlorosis and its influence on flowering of lychee trees Tagungsband Tropentag 2007	2007	Contribution to conference	Roygrong, S., W. Spreer, W. Wiriya-Alongkorn, P. Sruamsiri, V. Römheld und T. Müller
The potential of bamboo from Northern Laos as a source of renewable energy Tagungsband Tropentag 2007	2007	Contribution to conference	Dannenmann, B.M.E., C. Choocharoen, W. Spreer, M. Nagle, A. Neef und J. Müller
Water consumption of greenhouse lychee trees under partial rootzone drying Agricultural Engineering International: CIGR Ejournal	2007	Journal contribution	Spreer W, Hegele M, Czaczyk Z, Römheld V, Bangerth F, Müller J
Economic assessment of water saving irrigation methods in longan production in Northern Thailand Tagungsband Tropentag 2006	2006	Contribution to conference	Satienperakul K, Spreer W, Wiriya-Alongkorn W, Ongprasert S, Müller J
Thermofotografie zur Erfassung der Variabilität von stomatärer Leitfähigkeit an Mangobäumen Landtechnik	2006	Journal contribution	Spreer W, Jantschke C, Müller J
Agrartechnik in den Tropen und Subtropen (Agricultural Engineering in the Tropics and Subtropics) Jahrbuch Agrartechnik	2005	Book chapter	Köller K, Spreer W
Documentation of cavity closure by the seed in mango fruit (Mangifera indica L.) Tagungsband Tropentag 2005	2005	Contribution to conference	NAGLE, M, SPREER, W., NEIDHART, S., SRUAMSIRI, P., CARLE, R., MÜLLER, J.
Water use and drought stress in greenhouse split-root lychee Tagungsband Tropentag 2005	2005	Contribution to conference	Spreer W, Czaczyk Z, Hegele M, Dybol B, Bangert F, Müller J