On behalf of the editorial board, the Editor-in-Chief would like to thank the following for their contribution as peer reviewers during 2013. The breadth of these colleagues' geographical origin – across every continent – only underlines the journal's international reach and the global relevance of its content.

H. Agrama, IITA, Lusaka, Zambia

J. B. Alvarez, Cordoba, Spain

R. Arroyo-Garcia, Madrid, Spain

G. Attene, Sassari, Italy

A. Azevedo, Juiz de Fora, Brazil

R. Babu, Hyderabad, India

J. Bajracharya, Kathmandu, Nepal

P. Bebeli, Athens, Greece

L. Bell, Toowoomba, Australia

F. Bellusci, Cosenza, Italy

A. Börner, Gatersleben, Germany

G. Bonnema, Wageningen, The Netherlands

P. Bosland, Las Cruces, NM, USA

E. Boza, Miami, FL, USA

L. Braglia, Milan, Italy

P. Caligari, Talca, Chile

P. A. Casquero, Leon, Spain

K. J. Chwedorzewska, Warsaw, Poland

P. Convey, Cambridge, UK

J. Dahlberg, Parlier, CA, USA

A. Das, New Delhi, India

H. Dempewolf, Bonn, Germany

V. J. Dhole, Mumbai, India

J. M. A. de Roos, Gouda, The Netherlands

R. D'Ovidio, Viterbo, Italy

R. J. Eastwood, Ardingly, UK

S. Ercisli, Erzurum, Turkey

K. Fujino, Sapporo, Japan

K. Fukunaga, Shobara, Japan

Z. S. Gao, Hangzhou, China

F. Georges, Saskatoon, Canada

K. Ghamkhar, Melbourne, Australia

T. Gradziel, Davis, USA

C. Guzmán, Córdoba, Spain

S. Gyawali, Rabat, Morocco

J. Halász, Budapest, Hungary

C. T. Hash, Niamey, Niger

B. Heinze, Vienna, Austria

J. Hu, Pullman, WA, USA

C. L. Huang, Beijing, China

J. Ibáñez, Logroño, Spain

K. Irie, Tokyo, Japan

R. Jessup, College Station, TX, USA

C. Keever, British Columbia, Canada

C. Khoury, Cali, Colombia

H. Korpelainen, Helsinki, Finland

S. Kuhnen, Florianopolis, Brazil

Ph. Lachenaud, Kourou, French Guiana

G. Lacis, Dobele, Latvia

P. J. L. Lagoda, Vienna, Austria

A. Lamarque, Córdoba, Argentina

A. Lázaro, Madrid, Spain

V. Le Corre, Dijon, France

K. Lewers, Beltsville, MD, USA

A. E. Lipka, New York, USA

P. Lubinsky, Washington, DC, USA

J. Magos Brehm, Lisbon, Portugal

T. N. Manohara, Jorhat, India

M. Marino, Rome, Italy

F. Marroni, Udine, Italy

P. Martins-Lopes, Vila Real, Portugal

Y. Matsumoto, Ibaraki, Japan

A. McClung, Stuttgart, KS, USA

H. Mehta, Dehradun, India

A. Morgounov, Ankara, Turkey

A. Morvan-Bertrand, Caen, France

J. C. Motamayor, Miami, FL, USA

L. A. Motilal, St Augustine, Trinidad and Tobago

M. Muraya, Gatersleben, Germany

K. N. Nair, Lucknow, India

E. Nuijten, Wageningen, The Netherlands

H. Nybom, Kristianstad, Sweden

K. Olsen, St Louis, MO, USA

R. Ortiz, Alnarp, Sweden

K. Ossama, Meknes, Morocco

A. Oukabli, Meknes, Morocco

I. Ovando-Medina, Tapachula, Mexico

H. Ozkan, Adana, Turkey

F. K. Padi, New-Tafo Akim, Ghana

Q. Pan, Guangzhou, China

A. K. Pandey, Ranchi, India

M. Pandey, Hyderabad, India

S. Panwar, New Delhi, India

H. S. Paris, Ramat Yishai, Israel

J. Pringle, Hamilton, ON, Canada

E. Ramalho do Ręgo, Areia, Brazil

G. Ramsay, Dundee, UK

P. Ramu, Hyderabad, India

R. Rana, Pokhara, Nepal

A. M. Rao, Bangalore, India

S. G. Razafimandimbison, Stockholm, Sweden

R. Redden, Horsham, Australia

N. Reddy, Hyderabad, India

D. Rungis, Salaspils, Latvia

B. Sagredo, Rengo, Chile

K. Sakurai, Akita, Japan

J. Sanzol, Zaragoza, Spain

R. N. Sarma, Jorhat, Assam, India

P. Satya, Kolkata, India

R. K. Saxena, Hyderabad, India

B. Schatz, Montpellier, France

R. J. Schnell, Miami, FL, USA

G. Seijo, Corrientes, Argentina

P. Si, Perth, Australia

K. P. Singh, Bhopal, India

R. Socias i Company, Zaragoza, Spain

K. Traore, St Louis, Senegal

A. M. Torres, Cordoba, Spain

H. D. Upadhyaya, Hyderabad, India

M. van de Wouw, Hertogenbosch, The Netherlands

A. Vandenberg, Saskatoon, Canada

M. Vetriventhan, Utter Pradesh, India

M. L. Wang, Griffin, GA, USA

M. Widrlechner, Ames, IA, USA

L. Wingen, Norwich, UK

F. Xie, Los Banos, Philippines

O. P. Yadav, Delhi, India

K. U. Yilmaz, Kayseri, Turkey

D. Zhang, Beltsville, USA

Y. Zhang, Wuhan, China