Enric Bartra - Academia.edu (original) (raw)
Papers by Enric Bartra
Midday leaf water potential (Ymd) was moni- tored for 3 years at a commercial vineyard (cv. Pinot... more Midday leaf water potential (Ymd) was moni- tored for 3 years at a commercial vineyard (cv. Pinot Noir) under four irrigation strategies. Three treatments were established based on irrigating vines with 4-6 mm/ day, when daily measured Ymd was more negative than the pre-defined threshold. After the first experimental year, thresholds were adjusted for each treatment as: (1) Control (C), irrigated when Ymd was less than 0.6 MPa at the beginning of the season and gradually fell to 0.8 MPa at about mid-June, after which the threshold was maintained at 0.8 MPa until harvest. (2) Control- Deficit (CD), irrigated as C from bud-break to mid-June (around the middle of Stage II of fruit growth), and from then until harvest when Ymd decreased below 1.2 MPa. (3) Deficit-Deficit (DD), irrigated when Ymd was less than 1.0 from bud break to mid-May (about the middle of fruit growth Stage I), and after that time the Ymd threshold became 1.2 MPa until harvest. A fourth treatment was applied following a soil water budget ap- proach (WB). All treatments were replicated five times but irrigation in the Ymd-based treatments were inde- pendently applied to each of the replicate plots, whereas irrigation for WB was applied equally to all replications. The more site-specific information obtained from Ymd thresholds in C provided substantial advantages for yield homogeneity and repeatability of results with respect to WB, thus demonstrating the method's greater ability to account for spatial variability. Average applied water for the 3 years in C, CD, and DD was 374, 250, and 178 mm, respectively, while the yields were 11.8, 9.2, and 6.1 kg/ vine, respectively. The CD treatment produced better juice quality than C, and was superior in other quality parameters to both C and DD. However, over the study period, an important carryover effect was observed in the yields and the grape size of CD, which tended to diminish from year to year relative to C.
HAL (Le Centre pour la Communication Scientifique Directe), Oct 8, 2018
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific re... more HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
HAL (Le Centre pour la Communication Scientifique Directe), Nov 7, 2018
The indicators used in this study allow the evaluation of the pest pressure and pesticide use in ... more The indicators used in this study allow the evaluation of the pest pressure and pesticide use in a complex system in three regions. In 2017 we were able to see different patterns in pest type and pressure and in pesticide use in the different regions, significant relationships between pests and treatments. The variability in the relationships pest/treatments offers options for the reduction in pesticide use from the basis of the current practices. There is complexity in the factors that affect not only to wine quality, but also to yield. A new multipathogen approach in the field vs wine quality is tested. The multifactorial analysis will allow to evaluate the reduction in pesticide use in relation with the cost analysis and consumer preferences. 2018 has been a rainy spring and a rainy and hot summer, with a very different preliminary AIDB and IFT, which will provide a different range of results.
Irrigation Science, Oct 14, 2005
American Journal of Enology and Viticulture
... pp 233-48. D. Reidel Publishing Company, Berlin (1983). 9. Park, SK, and AC Noble. Volatile s... more ... pp 233-48. D. Reidel Publishing Company, Berlin (1983). 9. Park, SK, and AC Noble. Volatile sulfur compounds in wines. New analytical technique amd development during fermentation. ... 14:79-91 (1963). 11. Simpson, RF Aroma composition of bottle aged white wine. Vitis. ...
HAL (Le Centre pour la Communication Scientifique Directe), Nov 7, 2018
The indicators used in this study allow the evaluation of the pest pressure and pesticide use in ... more The indicators used in this study allow the evaluation of the pest pressure and pesticide use in a complex system in three regions. In 2017 we were able to see different patterns in pest type and pressure and in pesticide use in the different regions, significant relationships between pests and treatments. The variability in the relationships pest/treatments offers options for the reduction in pesticide use from the basis of the current practices. There is complexity in the factors that affect not only to wine quality, but also to yield. A new multipathogen approach in the field vs wine quality is tested. The multifactorial analysis will allow to evaluate the reduction in pesticide use in relation with the cost analysis and consumer preferences. 2018 has been a rainy spring and a rainy and hot summer, with a very different preliminary AIDB and IFT, which will provide a different range of results.
En un estudi sobre la biodiversitat en paisatges vitícoles del Penedès s’ha obtingut 2.902 coleòp... more En un estudi sobre la biodiversitat en paisatges vitícoles del Penedès s’ha obtingut 2.902 coleòpters, corresponents a 76 espècies i 6 gèneres de 22 famílies. L’interès de l’estudi és que hi ha poques dades sobre els coleòpters presents en vinya i el papeIn a biodiversity study on the vineyards in Penedès we have found 2.902 coleopterans with 76 species and 6 genera of 22 families. The interest of the study is that very few data exist on the coleopteran of the vineyards and the function they can have on tEn un estudio de la biodiversidad en paisajes vitícolas del Penedès se han obtenido 2.902 coleópteros correspondientes a 76 especies y 6 géneros de 22 familias. El interés del estudio se debe a que existen pocos datos sobre los coleópteros presentes en v
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific re... more HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
Ponencies Del Curs Vitivinicultura Ecologica Vilafranca Del Penedes Gener Marc 1993 1993 Pags 183 190, 1993
Ace Revista D Enologia, 2004
INTRODUCCIÓN El control de la fermentación maloláctica (FML) mediante la inoculación de bacterias... more INTRODUCCIÓN El control de la fermentación maloláctica (FML) mediante la inoculación de bacterias lácticas (BL) comerciales es una estrategia utilizada en la elaboración de vino para minimizar los problemas relacionados con FML no controladas: fermentaciones largas con riesgo de picado láctico y, por tanto, acidez volátil alta, síntesis de aminas biógenas (AB) y carbamato de etilo, paradas de fermentación, desviaciones organolépticas, etc. Las cepas de bacterias lácticas son seleccionadas buscando determinadas características, entre ellas, una menor producción de aminas biógenas. Además, en principio, son capaces de imponerse a la microflora autóctona y desarrollar la FML confiriendo al vino las características deseadas. Sin embargo, muchas veces, y dependiendo de diferentes factores (carga microbiana inicial, pH, temperatura, técnica de elaboración, etc.), la cepa inoculada no llega a imponerse en su totalidad (1). Esta situación tiene como consecuencia que las bacterias lácticas a...
El Dr. M. Andrew Walker, genetista y profesor del Departamento de Viticultura y Enología de la pr... more El Dr. M. Andrew Walker, genetista y profesor del Departamento de Viticultura y Enología de la prestigiosa Universidad de California en Davis, dirige uno de los más destacados laboratorios en el mundo especializado en el estudio de la genética aplicada a las principales enfermedades que afectan a la vid. En esta entrevista concedida a Acenologia, se perciben su tesón tanto por preservar la diversidad genética como por avanzar en el estudio de la resistencia a plagas, a la enfermedad de Pierce y al oídio.
Microbiología (Madrid, Spain), 1995
The production of cava (sparkling wine produced according to the rules of the cava appellation, i... more The production of cava (sparkling wine produced according to the rules of the cava appellation, in i.e. Catalonia and La Rioja, Spain) involves several microbial factors such as growth, fermentation and death of yeast cells (Saccharomyces cerevisiae). Ethanol tolerance, flocculation and aroma characteristics of yeast cells as major selection factors for the production of cava are discussed in this review.
Plant Pathology, 2012
The aim of this research was to confirm the efficacy of the yeast antagonist Candida sake CPA-1 i... more The aim of this research was to confirm the efficacy of the yeast antagonist Candida sake CPA-1 in suppressing botrytis bunch rot development, in an organic vineyard under Mediterranean conditions for two seasons, and compare its performance with that of two biologically based products currently registered for botrytis bunch rot control in New Zealand. In 2009, treatments applied were: commercial formulations of Ulocladium oudemansii (BOTRY-Zen ®) and chitosan (ARMOUR-Zen ®), C. sake CPA-1 combined with the fatty acid-based additive Fungicover ® and combinations of these products. All treatments were applied six times between early flowering and harvest and compared with an unsprayed control. In 2010, the treatments focused on C. sake and Fungicover and the number of applications was reduced from six to four. The population dynamics of U. oudemansii and C. sake were measured and wine quality tests were carried out in both seasons. Disease control achieved by C. sake treatments in 2009 were comparable to those achieved by BOTRY-Zen and ARMOUR-Zen. Applications of C. sake plus Fungicover between flowering and harvest significantly (P < 0Á05) reduced botrytis bunch rot incidence and severity by 64% and 90%, respectively, compared with the untreated control in 2009, and by 67% and 89%, respectively, in 2010. Treatments did not adversely affect wine quality parameters after treated grapes were processed. Candida sake consistently provided effective control of botrytis bunch rot in grapes under different meteorological and disease pressure conditions, thereby improving its potential for future commercial applications.
Midday leaf water potential (Ymd) was moni- tored for 3 years at a commercial vineyard (cv. Pinot... more Midday leaf water potential (Ymd) was moni- tored for 3 years at a commercial vineyard (cv. Pinot Noir) under four irrigation strategies. Three treatments were established based on irrigating vines with 4-6 mm/ day, when daily measured Ymd was more negative than the pre-defined threshold. After the first experimental year, thresholds were adjusted for each treatment as: (1) Control (C), irrigated when Ymd was less than 0.6 MPa at the beginning of the season and gradually fell to 0.8 MPa at about mid-June, after which the threshold was maintained at 0.8 MPa until harvest. (2) Control- Deficit (CD), irrigated as C from bud-break to mid-June (around the middle of Stage II of fruit growth), and from then until harvest when Ymd decreased below 1.2 MPa. (3) Deficit-Deficit (DD), irrigated when Ymd was less than 1.0 from bud break to mid-May (about the middle of fruit growth Stage I), and after that time the Ymd threshold became 1.2 MPa until harvest. A fourth treatment was applied following a soil water budget ap- proach (WB). All treatments were replicated five times but irrigation in the Ymd-based treatments were inde- pendently applied to each of the replicate plots, whereas irrigation for WB was applied equally to all replications. The more site-specific information obtained from Ymd thresholds in C provided substantial advantages for yield homogeneity and repeatability of results with respect to WB, thus demonstrating the method's greater ability to account for spatial variability. Average applied water for the 3 years in C, CD, and DD was 374, 250, and 178 mm, respectively, while the yields were 11.8, 9.2, and 6.1 kg/ vine, respectively. The CD treatment produced better juice quality than C, and was superior in other quality parameters to both C and DD. However, over the study period, an important carryover effect was observed in the yields and the grape size of CD, which tended to diminish from year to year relative to C.
HAL (Le Centre pour la Communication Scientifique Directe), Oct 8, 2018
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific re... more HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
HAL (Le Centre pour la Communication Scientifique Directe), Nov 7, 2018
The indicators used in this study allow the evaluation of the pest pressure and pesticide use in ... more The indicators used in this study allow the evaluation of the pest pressure and pesticide use in a complex system in three regions. In 2017 we were able to see different patterns in pest type and pressure and in pesticide use in the different regions, significant relationships between pests and treatments. The variability in the relationships pest/treatments offers options for the reduction in pesticide use from the basis of the current practices. There is complexity in the factors that affect not only to wine quality, but also to yield. A new multipathogen approach in the field vs wine quality is tested. The multifactorial analysis will allow to evaluate the reduction in pesticide use in relation with the cost analysis and consumer preferences. 2018 has been a rainy spring and a rainy and hot summer, with a very different preliminary AIDB and IFT, which will provide a different range of results.
Irrigation Science, Oct 14, 2005
American Journal of Enology and Viticulture
... pp 233-48. D. Reidel Publishing Company, Berlin (1983). 9. Park, SK, and AC Noble. Volatile s... more ... pp 233-48. D. Reidel Publishing Company, Berlin (1983). 9. Park, SK, and AC Noble. Volatile sulfur compounds in wines. New analytical technique amd development during fermentation. ... 14:79-91 (1963). 11. Simpson, RF Aroma composition of bottle aged white wine. Vitis. ...
HAL (Le Centre pour la Communication Scientifique Directe), Nov 7, 2018
The indicators used in this study allow the evaluation of the pest pressure and pesticide use in ... more The indicators used in this study allow the evaluation of the pest pressure and pesticide use in a complex system in three regions. In 2017 we were able to see different patterns in pest type and pressure and in pesticide use in the different regions, significant relationships between pests and treatments. The variability in the relationships pest/treatments offers options for the reduction in pesticide use from the basis of the current practices. There is complexity in the factors that affect not only to wine quality, but also to yield. A new multipathogen approach in the field vs wine quality is tested. The multifactorial analysis will allow to evaluate the reduction in pesticide use in relation with the cost analysis and consumer preferences. 2018 has been a rainy spring and a rainy and hot summer, with a very different preliminary AIDB and IFT, which will provide a different range of results.
En un estudi sobre la biodiversitat en paisatges vitícoles del Penedès s’ha obtingut 2.902 coleòp... more En un estudi sobre la biodiversitat en paisatges vitícoles del Penedès s’ha obtingut 2.902 coleòpters, corresponents a 76 espècies i 6 gèneres de 22 famílies. L’interès de l’estudi és que hi ha poques dades sobre els coleòpters presents en vinya i el papeIn a biodiversity study on the vineyards in Penedès we have found 2.902 coleopterans with 76 species and 6 genera of 22 families. The interest of the study is that very few data exist on the coleopteran of the vineyards and the function they can have on tEn un estudio de la biodiversidad en paisajes vitícolas del Penedès se han obtenido 2.902 coleópteros correspondientes a 76 especies y 6 géneros de 22 familias. El interés del estudio se debe a que existen pocos datos sobre los coleópteros presentes en v
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific re... more HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
Ponencies Del Curs Vitivinicultura Ecologica Vilafranca Del Penedes Gener Marc 1993 1993 Pags 183 190, 1993
Ace Revista D Enologia, 2004
INTRODUCCIÓN El control de la fermentación maloláctica (FML) mediante la inoculación de bacterias... more INTRODUCCIÓN El control de la fermentación maloláctica (FML) mediante la inoculación de bacterias lácticas (BL) comerciales es una estrategia utilizada en la elaboración de vino para minimizar los problemas relacionados con FML no controladas: fermentaciones largas con riesgo de picado láctico y, por tanto, acidez volátil alta, síntesis de aminas biógenas (AB) y carbamato de etilo, paradas de fermentación, desviaciones organolépticas, etc. Las cepas de bacterias lácticas son seleccionadas buscando determinadas características, entre ellas, una menor producción de aminas biógenas. Además, en principio, son capaces de imponerse a la microflora autóctona y desarrollar la FML confiriendo al vino las características deseadas. Sin embargo, muchas veces, y dependiendo de diferentes factores (carga microbiana inicial, pH, temperatura, técnica de elaboración, etc.), la cepa inoculada no llega a imponerse en su totalidad (1). Esta situación tiene como consecuencia que las bacterias lácticas a...
El Dr. M. Andrew Walker, genetista y profesor del Departamento de Viticultura y Enología de la pr... more El Dr. M. Andrew Walker, genetista y profesor del Departamento de Viticultura y Enología de la prestigiosa Universidad de California en Davis, dirige uno de los más destacados laboratorios en el mundo especializado en el estudio de la genética aplicada a las principales enfermedades que afectan a la vid. En esta entrevista concedida a Acenologia, se perciben su tesón tanto por preservar la diversidad genética como por avanzar en el estudio de la resistencia a plagas, a la enfermedad de Pierce y al oídio.
Microbiología (Madrid, Spain), 1995
The production of cava (sparkling wine produced according to the rules of the cava appellation, i... more The production of cava (sparkling wine produced according to the rules of the cava appellation, in i.e. Catalonia and La Rioja, Spain) involves several microbial factors such as growth, fermentation and death of yeast cells (Saccharomyces cerevisiae). Ethanol tolerance, flocculation and aroma characteristics of yeast cells as major selection factors for the production of cava are discussed in this review.
Plant Pathology, 2012
The aim of this research was to confirm the efficacy of the yeast antagonist Candida sake CPA-1 i... more The aim of this research was to confirm the efficacy of the yeast antagonist Candida sake CPA-1 in suppressing botrytis bunch rot development, in an organic vineyard under Mediterranean conditions for two seasons, and compare its performance with that of two biologically based products currently registered for botrytis bunch rot control in New Zealand. In 2009, treatments applied were: commercial formulations of Ulocladium oudemansii (BOTRY-Zen ®) and chitosan (ARMOUR-Zen ®), C. sake CPA-1 combined with the fatty acid-based additive Fungicover ® and combinations of these products. All treatments were applied six times between early flowering and harvest and compared with an unsprayed control. In 2010, the treatments focused on C. sake and Fungicover and the number of applications was reduced from six to four. The population dynamics of U. oudemansii and C. sake were measured and wine quality tests were carried out in both seasons. Disease control achieved by C. sake treatments in 2009 were comparable to those achieved by BOTRY-Zen and ARMOUR-Zen. Applications of C. sake plus Fungicover between flowering and harvest significantly (P < 0Á05) reduced botrytis bunch rot incidence and severity by 64% and 90%, respectively, compared with the untreated control in 2009, and by 67% and 89%, respectively, in 2010. Treatments did not adversely affect wine quality parameters after treated grapes were processed. Candida sake consistently provided effective control of botrytis bunch rot in grapes under different meteorological and disease pressure conditions, thereby improving its potential for future commercial applications.