The aim of this study was to analyse the spatial variation of blooming, yield and quality parameters, in an apple orchard, by using precision agriculture tools. This study is a preliminary step in order to create management zones, to take the management decisions and made the evaluation of the applied practices. The study was conducted in the Research and Development Station for Pomology Voinesti, Dambovita, on the 0.9 ha orchard. The orchard consists in Florina apple trees and Generos pollinator. The surface was mapped with GPS and the yield of each tree was manually harvested and weighed. Apple quality was evaluated in terms of: firmness, soluble solid content, juice pH. Also, in spring was determined the number of flowers/tree and the exact period of flowering. The interpolated maps were created using Surfer 8 software and the correlations between yield and quality have been established; some quality characteristics are negatively correlated with yield, like firmness.
If the inline PDF is not rendering correctly, you can download the PDF file here.
 Acevedo-Opazo C Tisseyre B Guillaume S Ojeda H (2007) Test of NDVI information for a relevant vineyard zoning related to vine water status. 6th European Conference on Precision Agriculture Skiathos Greece p. 547-554
 Aggelopoulou KD Bochtis D Fountas S Swain KC Gemtos TA Nanos GD (2011) Yield prediction in apple orchards based on image processing. Precision Agric 12 p. 448-456. doi:
 Aggelopoulou KD, Bochtis D, Fountas S, Swain KC, Gemtos TA, Nanos GD (2011) Yield prediction in apple orchards based on image processing. Precision Agric 12, p. 448-456. doi:10.1007/s11119-010-9187-0)| false
 Aggelopoulou KD, Wulfsohn D, Fountas S, Gemtos TA, Nanos GD, Blackmore S (2010) Spatial variation in yield and quality in a small apple orchard. Precision agriculture Vol. 11 Issue 5, p.538-556. doi:10.1007/s11119-009-9146-9)| false
 Alchanatis V Safren O Levi O Ostrovsky V (2007) Apple yield imaging using hyperspectral machine vision. 6th European Conference on Precision Agriculture Skiathos Greece p. 555-562
 Annamalai P Lee WS (2003) Citrus yield mapping system using machine vision. ASAE paper number 031002.
 Balastreire LA Schueller JK Amaral JR Leal JCG Baio FHR (2002) Coffee Yield Mapping. ASAE Paper No 021166. St. Joseph Michigan. ASAE
 Blidaru Sinziana Georgescu Andreea (2003) The dynamics of physical parameters in the fruit of Prunus cerasifera Ehrh. byotipes- Analele Facultăţii de Horticultură Timişoara Seria a VII-a- Editura AGROPRINT ISSN 1453 - 1402
 Chinchuluun R Lee WS Ehsani R (2007) Citrus yield mapping system on a canopy shake and catch harvester. ASAE Annual Meeting 073050
 Geovariances (2008) Structure identification in the intrinsic case. In Isatis technical reference Release 8 (pp. 9 - 51). Avon France: Geovariances. http://www.geovariances.com.
 Kim Y Reid J (2004) Apple yield mapping using a multispectral imaging sensor. International Scientific Conference on Agricultural Engineering (AgEng) Leuven Belgium
 Lopez-Granados F Jurado-Exposito M Alamo S Garcia- Torres L (2004) Leaf nutrient spatial variability and sitespecific fertilization maps within olive (Olea europaea L.) orchards. European Journal Agronomy 21: 209-222
 Marcotte D David M (1988) Trend surface analysis as a special case of IRF-k kriging. Mathematical Geology 20 821-824.
 Miller WM Whitney JD (1999) Evaluation of weighing systems for citrus yield monitoring. Applied Engineering in Agriculture 15(6): 609-614
 Molin J.P Mascarin LS Povh FP Amaral JR Oliveira AS (2007) Proceedings of the 6th European Conference on Precision Agriculture Skiathos Greece. Poster Abstracts in CD
 Morarita Sinziana Venera (2007) The influence of climatic factors of different years on some biotypes of Prunus cerasifera Ehrh - Universitatea Lucian Blaga din Sibiu - Conferinţa Internaţională- Agriculture and food industry within the context of European integration ISSN 1843-0694
 Okamoto H Lee WS Kane K (2007) Hyperspectral imaging for green citrus detection. Proceedings of the 6th European Conference on Precision Agriculture Skiathos Greece. Poster Abstracts in CD
 Ortega RA Esser A Santibanez O (2003) Spatial variability of wine grape yield and quality in Chilean vineyards: economic and environmental impacts. 4th European Conference on Precision Agriculture Berlin Germany p. 499-506
 Queiroz DM Alves EA Pinto FAC (2007) Spatial and Temporal Variability of Coffee Quality. ASABE Paper N. 071141
 Safren O (2006) Green apple yield mapping using hyperspectral machine vision. M.Sc Thesis Ben-Guiron University of Negev Faculty of Engineering Sciences Department of Industria Engineering and Management Israel
 Sakai K Noguchi Y Asada S (2008) Detecting chaos in a citrus orchard: Reconstruction of nonlinear dynamics from very short ecological time series. Chaos Solitons & Fractals 38 1274-1282.
 Schumann AW Zaman QU (2003) Mapping water table depth by electromagnetic induction. Applied Engineering in Agriculture 19(6): 675-688
 Stajnko D Lakota M Hoevar M (2004) Estimation of number and diameter of apple fruits in an orchard during the growing season by thermal imaging. Computers and Electronics in Agriculture 42: 31-42.
 Stamatiadis S Taskos D Tsadila E Christofides C Tsadilas C Schepers JS (2007) Proximal remote sensing. Technological advances and application in vineyards. 6th European Conference on Precision Agriculture Skiathos Greece Poster abstracts in CD
 Tagarakis A Chatzinikos A Fountas S Gemtos TA (2006) Deliniation of management zones in precision viticulture. HAICTA 2006 Conference Volos Greece p.547-554
 Taylor J Tisseyre B Bramley R Reid A (2005) A comparison of the spatial variability of vineyard yield in European and Australian product systems. 5th European Conference on Precision Agriculture Uppsala Sweden p. 907-914
 Teodorescu G (2009) Improvement of fruit quality using the precision horticulture in Romania. VIII International Symposium Frutic Chile
 Tisseyere B Mazzoni C Ardoin N Clipet C (2001) Yield and harvest quality measurement in precision viticultureapplication for a selective vintage 3rd European Conference on Precision Agriculture Montpellier France p. 133-138
 Whitney JD Ling Q Miller WM Adair Wheaton T (2001) A DGPS yield monitoring system for Florida citrus. Applied Engineering in Agriculture 17(2): 115-119
 Xujun Y Sakai K Manago M Asada S Sasao A (2007) Prediction of citrus yield from airborn hyperspectral imagery. Precision Agriculture 8(3):111-125
 Zaman Q Schuman WA Hostler HK (2006) Estimation of citrus fruit yield using ultrasonically-sensed tree size. Applied Engineering in Agriculture 22(1): 39-43.