Gerardo López

Gerardo López

AgreenSkills session, year: 1st session, 2013

Receiving laboratory: Amélioration Génétique et Adaptation des Plants Méditerranéennes et Tropicales, Montpellier, France

Country of origin : Italy




Mobility project

Response to soil water scarcity of an apple core-collection: high-throughput phenotyping for genetic analysis of the morphological and functional responses of one-year old apple trees

The project aims at characterizing the diversity of responses of several one-year-old French apple cultivars to water stress. I will evaluate the effect of water stress in tree morphological development (growth, leaf area, total biomass) and leaf functioning (water potential, stomatal regulation and transpiration). Genetics tools will be also used to identify alleles that may be related with water stress tolerance. This project will allow introducing tolerance to water deficit as a new selection criterion for apple tree.

Biography & research interests

Research carrier oriented in crop physiology in fruit orchards. My carrier as researcher has been developed during 10 years in four important places for fruit tree research: Institut de Recerca i Tecnologia Agroalimentàries (IRTA-Lleida, Spain), 5 years; University of California, Davis (USA), 2 year; University of Bologna (Italy), 1 year; and INRA-Montpellier (1 year and a half) where I developed the AgreenSkills project. My major contribution to this field has been to understand the effects of water stress, high air temperatures, and solar radiation on fruit crop production and the quality of fruit. I also studied source-sink relationships in fruit trees. I am developing and using crop models to integrate physiological knowledge at the whole-tree level, under different environmental conditions and over several years. My major goal is to understand the effects of multiple environmental conditions on fruit orchards and to provide information on how to manage fruit trees under climate changing scenarios. I am currently working at IRTA.

Selected publications

Lauri, P.E., T.S. Barigah, G. Lopez, S. Martinez, P. Losciale, M. Zibordi, L. Manfrini, L. Corelli-Grappadelli, E. Costes, J.L. Regnard. 2016.
Genetic variability and phenotypic plasticity of apple morphological responses to soil water restriction in relation with leaf functions and stem xylem conductivity.
Trees – Structure and Function. DOI 10.1007/s00468-016-1408-3

Marsal, J., J. Casadesus, G. Lopez, M. Mata, J. Bellvert, J. Girona. 2016.
Sustainability of Regulated Deficit Irrigation in a mid-maturing peach cultivar.
Irrigation Science, DOI 10.1007/s00271-016-0498-4

Torres-Ruiz, J.M., G.D. Perulli, L. Manfrini, M. Zibordi, G. Lopez, S. Anconelli, E. Pierpaoli, L. Corelli-Grappadelli, B. Morandi. 2016.
Time of irrigation affects vine water relations and the daily patterns of leaf gas exchanges and vascular flows to kiwifruit (Actinidia Deliciosa Chev.) berries.
Agricultural Water Management, 166:101-110.

Lopez, G., B. Pallas, S. Martinez, P.E. Lauri, J.L Regnard, C.E Durel, E. Costes. 2015.
Genetic Variation of Morphological Traits and Transpiration in an Apple Core Collection under Well-Watered Conditions: Towards the Identification of Morphotypes with High Water Use Efficiency.
PLoS ONE 10(12):e0145540. doi:10.1371/journal.pone.0145540.

Marsal J, S. Johnson, J. Casadesus, G. Lopez, J. Girona, C. Stöckle. 2014. Fraction of canopy intercepted radiation relates differently with crop coefficient depending on the season and the species: an evaluation for peach, pear and apple based on CropSyst simulations and lysimeter data. Agricultural and Forest Meteorology, 184:1– 11

Auzmendi, I, J. Marsal, J. Girona, G. Lopez. 2013. Daily photosynthetic radiation use efficiency for apple and pear leaves: seasonal changes and estimation of canopy net carbon exchange rate. European Journal of Agronomy, 10.1016/j.eja.2013.05.007

Marsal, J. Girona, J. Casadesus, G. Lopez, C.O. Stöckle. 2013. Crop coefficient (Kc) for apple: comparison between measurement by a weighing lysimeter and prediction by CropSyst. Irrigation Science, 31:455-463.

Lopez, G., M.H. Behboudian, J. Girona, J. Marsal. 2013. Drought in deciduous fruit orchards: implications for yield and fruit quality. In: R. Aroca (Ed.), Plant Responses to Drought Stress: From Morphological to Molecular Features. Springer-Verlag, Berlin Hidelberg. Pp:441-459.

Lopez, G., M.H. Behboudian, J. Girona, J. Marsal. 2013. Responses of ‘Conference’ Pear to Deficit Irrigation: Water Relations, Leaf Discrimination Against 13CO2, Tree Starch Content, Growth, and Recovery After Rewatering. Journal of Plant Growth Regulation, 32:273-280.

Vallverdú, X., J. Girona, G. Echeverria, J. Marsal, M.H. Behboudian, G. Lopez. 2012. Sensory Quality and Consumer Acceptance of ‘Tardibelle’ Peach are Improved by Deficit Irrigation applied during Stage II of Fruit Development. HortScience, 47(5):656-659.

Marsal, J., G. Lopez, M. Mata, J. Girona. 2012. Postharvest deficit irrigation in ‘Conference’ pear in a deep soil: consequences in the following season. Agricultural water management, 103:1-7.

Auzmendi, I., M. Mata, G. Lopez, J. Girona, J. Marsal. 2011. Intercepted radiation by apple canopy can be used as a basis for irrigation scheduling. Agricultural Water Management 98:886-892.

Girona, J., J. del Campo, M. Mata, G. Lopez, J. Marsal. 2011. A comparative study of apple and pear tree water consumption measured with two weighing lysimeters Irrigation Science 29:55-63.

Lopez, G., M.H. Behboudian, G. Echeverria. M. Mata, J. Girona, J. Marsal. 2011. Instrumental and sensory evaluation of fruit quality for ‘Ryan´s sun’ peach grown under deficit irrigation. HortTechnology, 21:712-719.

Lopez, G., C. Larrigaudiere, J. Girona, M.H. Behboudian, J. Marsal. 2011. Fruit thinning in ‘Conference’ pear grown under deficit irrigation: implications for fruit quality at harvest and after cold storage. Scientia Horticulturae, 129: 64-70.

Lopez, G., R.R. Favreau, C. Smith, T.M. DeJong. 2010. L-PEACH: a computer-based model to understand how peach trees grow. HortTechnology, 20 (6):983-990.

Lopez, G., M.H. Behboudian, X. Vallverdu, M. Mata, J. Girona, J. Marsal. 2010. Mitigation of severe water stress by fruit thinning in ‘O’Henry’ peach: implications for fruit quality. Scientia Horticulturae, 125:294-300.

Marsal, J., M. Mata, A. Arbones, J. Girona, G. Lopez. 2008. Factors involved in water stress alleviation subsequent to partial crop removal in pear trees. Tree Physiology 28: 1375-1382.

Lopez, G., R.R. Favreau, C. Smith, E. Costes, P. Prusinkiewicz, T.M. DeJong. 2008. Integrating simulation of architectural development and source-sink behaviour of peach trees by incorporating Markov chains and physiological organ function sub-models into L-PEACH. Functional Plant Biology, 35 (10): 761-771.

Lopez, G., A. Arbones, M. Mata, C. Paris, J. Girona, J. Marsal. 2008. Root growth following defruiting improves peach tree water status. The Journal of Horticultural Science and Biotechnology, 83 (6): 804-808.

Lopez, G., A. Arbones, J. del Campo, M. Mata, X. Vallverdu, J. Girona, J. Marsal. 2008. Response of peach trees to regulated deficit irrigation during stage II of fruit development and summer pruning. Spanish Journal of Agricultural Research, 6(3):479-491.

Lopez, G., R. S. Johnson, T.M. DeJong. 2007. High spring temperatures decrease peach fruit size. California Agriculture, 61 (1): 31-34.

Lopez, G., J. Girona, J. Marsal. 2007. Response of winter root starch concentration to severe water stress and fruit load and its subsequent effects on early peach fruit development. Tree physiology, 27:1619-1626.

Lopez, G. and T.M. DeJong. 2007. Spring temperatures have a major effect on early stages of peach fruit growth. The Journal of Horticultural Science and Biotechnology, 82:507-512.

Lopez, G., J. Girona, J. del Campo, J. Marsal. 2007. Effects of relative source-sink position within peach trees on fruit growth under water deficit conditions. The Journal of Horticultural Science and Biotechnolog, 82: 140-148.

Lopez, G., M. Mata, A. Arbones, J.R. Solans, J. Girona, J. Marsal. 2006. Mitigation of effects of extreme drought during stage III of peach fruit development by summer pruning and fruit thinning. Tree Physiology, 26: 469-477.

Awards & patents

Extraordinary doctorate award – University of Lleida




CV: Download curriculum vitae