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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
25/02/2021 |
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Actualizado : |
25/02/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
CARRA, B.; DINI, M.; ABREU, E. S.; PASA, M. S.; PASA, C. P.; FRANCESCATTO, P.; HERTER, F. G.; MELLO-FARIAS, P. C. |
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Afiliación : |
BRUNO CARRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Programa de Pós-Graduaçao em Agronomia (PPGA), Universidade Federal de Pelotas (UFPel), Pelotas-RS, Brazil; MAXIMILIANO ANTONIO DINI VIÑOLY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Programa de Pós-Graduaçao em Agronomia (PPGA), Universidade Federal de Pelotas (UFPel), Pelotas-RS, Brazil; E. S. ABREU, Programa de Pós-Graduaçao em Agronomia (PPGA), Universidade Federal de Pelotas (UFPel), Pelotas-RS, Brazil; M. S. PASA, Programa de Pós-Graduaçao em Agronomia (PPGA), Universidade Federal de Pelotas (UFPel), Pelotas-RS, Brazil; C. P. PASA, Programa de Pós-Graduaçao em Agronomia (PPGA), Universidade Federal de Pelotas (UFPel), Pelotas-RS, Brazil; P. FRANCESCATTO, Global Technical Development Specialist, Valent BioSciences Corporation, Libertyville, IL, USA.; F. G. HERTER, Programa de Pós-Graduaçao em Agronomia (PPGA), Universidade Federal de Pelotas (UFPel), Pelotas-RS, Brazil; P. C. MELLO-FARIAS, Programa de Pós-Graduaçao em Agronomia (PPGA), Universidade Federal de Pelotas (UFPel), Pelotas-RS, Brazil. |
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Título : |
Ethephon increases return bloom and yield of 'Rocha' pear trees. [Conference paper]. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Acta Horticulturae, February 2021, N°1303, p. 291-298. DOI: https://doi.org/10.17660/ActaHortic.2021.1303.41 |
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ISSN : |
0567-7572 (print); 2406-6168 (electronic) |
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DOI : |
10.17660/ActaHortic.2021.1303.41 |
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Idioma : |
Inglés |
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Notas : |
Article history: Published 5 February 2021. In: Acta Horticulturae (ISHS) 1303: XIII International Pear Symposium, Montevideo, Uruguay. Conveners: Roberto Zoppolo, Danilo Cabrera. Editors: Roberto Zoppolo, Danilo Cabrera, D. Granatstein. |
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Contenido : |
ABSTRACT.
Flower induction and differentiation are complex phenomena not fully understood in pear trees. Ethylene is a plant hormone that seems to play an important role in flower induction. Exogenous ethephon (Eth) and naphthaleneacetic acid (NAA) applications have shown promising results to increase return bloom and yields in some pear cultivars. The objective of this study was to evaluate the effect of Eth and NAA on return bloom, yield and shoot length of 'Rocha' pear trees in southern Brazil. The study was performed during 2015/2016 and 2016/2017 growing seasons, using a five-year-old 'Rocha' pear orchard grafted on 'BA29' quince rootstock. Treatments consisted of untreated control, Eth 100 mg L‑1; NAA 5 mg L‑1; NAA 7.5 mg L‑1; NAA 10 mg L‑1; Eth 100 mg L‑1 + NAA 5 mg L‑1; Eth 200 mg L‑1 + NAA 7.5 mg L‑1; Eth 300 mg L‑1 + NAA 10 mg L‑1 applied at 40 + 60 + 80 days after full bloom (DAFB); Eth 150 mg L‑1 + NAA 7.5 mg L‑1 applied at 60 + 70 + 80 + 90 DAFB; and Eth 150 mg L‑1 + NAA 7.5 mg L‑1 sprayed at 40 + 60 + 80 + 100 DAFB. Shoot length in the year of application, return bloom, number of fruits tree‑1, yield (kg tree‑1 and Mg ha‑1) and average fruit weight the following season were assessed. Return bloom and yield were increased when trees were sprayed with Eth 100 mg L‑1 at 40 + 60 + 80 DAFB and Eth 150 mg L‑1 + NAA 7.5 mg L‑1 at 40 + 60 + 80 + 100 DAFB. NAA sprayed alone did not increase return bloom and yield. These results suggest that only ethephon was effective to increase return bloom, since NAA alone had no effect. Shoot length was reduced by all treatments compared to the untreated trees.
@ International Society for Horticultural Science. MenosABSTRACT.
Flower induction and differentiation are complex phenomena not fully understood in pear trees. Ethylene is a plant hormone that seems to play an important role in flower induction. Exogenous ethephon (Eth) and naphthaleneacetic acid (NAA) applications have shown promising results to increase return bloom and yields in some pear cultivars. The objective of this study was to evaluate the effect of Eth and NAA on return bloom, yield and shoot length of 'Rocha' pear trees in southern Brazil. The study was performed during 2015/2016 and 2016/2017 growing seasons, using a five-year-old 'Rocha' pear orchard grafted on 'BA29' quince rootstock. Treatments consisted of untreated control, Eth 100 mg L‑1; NAA 5 mg L‑1; NAA 7.5 mg L‑1; NAA 10 mg L‑1; Eth 100 mg L‑1 + NAA 5 mg L‑1; Eth 200 mg L‑1 + NAA 7.5 mg L‑1; Eth 300 mg L‑1 + NAA 10 mg L‑1 applied at 40 + 60 + 80 days after full bloom (DAFB); Eth 150 mg L‑1 + NAA 7.5 mg L‑1 applied at 60 + 70 + 80 + 90 DAFB; and Eth 150 mg L‑1 + NAA 7.5 mg L‑1 sprayed at 40 + 60 + 80 + 100 DAFB. Shoot length in the year of application, return bloom, number of fruits tree‑1, yield (kg tree‑1 and Mg ha‑1) and average fruit weight the following season were assessed. Return bloom and yield were increased when trees were sprayed with Eth 100 mg L‑1 at 40 + 60 + 80 DAFB and Eth 150 mg L‑1 + NAA 7.5 mg L‑1 at 40 + 60 + 80 + 100 D... Presentar Todo |
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Palabras claves : |
Flower differentia; Flower induction; Naphthaleneacetic acid; Plant growth regulators; Vegetative growth. |
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Thesagro : |
PYRUS COMMUNIS. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 03024naa a2200313 a 4500
001 1061765
005 2021-02-25
008 2021 bl uuuu u00u1 u #d
022 $a0567-7572 (print); 2406-6168 (electronic)
024 7 $a10.17660/ActaHortic.2021.1303.41$2DOI
100 1 $aCARRA, B.
245 $aEthephon increases return bloom and yield of 'Rocha' pear trees. [Conference paper].$h[electronic resource]
260 $c2021
500 $aArticle history: Published 5 February 2021. In: Acta Horticulturae (ISHS) 1303: XIII International Pear Symposium, Montevideo, Uruguay. Conveners: Roberto Zoppolo, Danilo Cabrera. Editors: Roberto Zoppolo, Danilo Cabrera, D. Granatstein.
520 $aABSTRACT. Flower induction and differentiation are complex phenomena not fully understood in pear trees. Ethylene is a plant hormone that seems to play an important role in flower induction. Exogenous ethephon (Eth) and naphthaleneacetic acid (NAA) applications have shown promising results to increase return bloom and yields in some pear cultivars. The objective of this study was to evaluate the effect of Eth and NAA on return bloom, yield and shoot length of 'Rocha' pear trees in southern Brazil. The study was performed during 2015/2016 and 2016/2017 growing seasons, using a five-year-old 'Rocha' pear orchard grafted on 'BA29' quince rootstock. Treatments consisted of untreated control, Eth 100 mg L‑1; NAA 5 mg L‑1; NAA 7.5 mg L‑1; NAA 10 mg L‑1; Eth 100 mg L‑1 + NAA 5 mg L‑1; Eth 200 mg L‑1 + NAA 7.5 mg L‑1; Eth 300 mg L‑1 + NAA 10 mg L‑1 applied at 40 + 60 + 80 days after full bloom (DAFB); Eth 150 mg L‑1 + NAA 7.5 mg L‑1 applied at 60 + 70 + 80 + 90 DAFB; and Eth 150 mg L‑1 + NAA 7.5 mg L‑1 sprayed at 40 + 60 + 80 + 100 DAFB. Shoot length in the year of application, return bloom, number of fruits tree‑1, yield (kg tree‑1 and Mg ha‑1) and average fruit weight the following season were assessed. Return bloom and yield were increased when trees were sprayed with Eth 100 mg L‑1 at 40 + 60 + 80 DAFB and Eth 150 mg L‑1 + NAA 7.5 mg L‑1 at 40 + 60 + 80 + 100 DAFB. NAA sprayed alone did not increase return bloom and yield. These results suggest that only ethephon was effective to increase return bloom, since NAA alone had no effect. Shoot length was reduced by all treatments compared to the untreated trees. @ International Society for Horticultural Science.
650 $aPYRUS COMMUNIS
653 $aFlower differentia
653 $aFlower induction
653 $aNaphthaleneacetic acid
653 $aPlant growth regulators
653 $aVegetative growth
700 1 $aDINI, M.
700 1 $aABREU, E. S.
700 1 $aPASA, M. S.
700 1 $aPASA, C. P.
700 1 $aFRANCESCATTO, P.
700 1 $aHERTER, F. G.
700 1 $aMELLO-FARIAS, P. C.
773 $tActa Horticulturae, February 2021, N°1303, p. 291-298. DOI: https://doi.org/10.17660/ActaHortic.2021.1303.41
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INIA Las Brujas (LB) |
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| Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
10/12/2020 |
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Actualizado : |
10/12/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
HIRIGOYEN, A.; VARO-MARTINEZ, M.A.; RACHID, C.; FRANCO, J.; NAVARRO-CERRILLO, R.M. |
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Afiliación : |
ANDRES EDUARDO HIRIGOYEN DOMINGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARÍA ANGELES VARO-MARTINEZ, Department of Forestry Engineering, Laboratory of Silviculture, Dendrochronology and Climate Change, DendrodatLab-ERSAF, University of Cordoba, Campus de Rabanales, Córdoba, Spain; ANA CECILIA RACHID CASNATI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JORGE FRANCO, Faculty of Agronomy, University of the Republic, Paysandú, Uruguay; RAFAEL MARÍA NAVARRO-CERRILLO, Department of Forestry Engineering, Laboratory of Silviculture, Dendrochronology and Climate Change, DendrodatLab-ERSAF, University of Cordoba, Campus de Rabanales, Córdoba, Spain. |
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Título : |
Stand characterization of eucalyptus spp. Plantations in uruguay using airborne lidar scanner technology. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Remote Sensing, 1 December 2020, Volume 12, Issue 23, Article number 3947, Pages 1-19. Open Access. Doi: https://doi.org/10.3390/rs12233947 |
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DOI : |
10.3390/rs12233947 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 16 October 2020 / Revised: 5 November 2020 / Accepted: 21 November 2020 / Published: 2 December 2020. Acknowledgments: The authors thank the Instituto Nacional de Investigaciones Agropecuarias (INIA-Uruguay) for supporting our research work and for help during the fieldwork. We are particularly grateful for the support of Roberto Scoz, Demian Gomez, Zenia Barrios and Gustavo Balmelli (INIA), Mariano Blanco, Santiago Heguaburu, Carola Odone and José Carlos de Mello (FOSA). R.M.N.-C. acknowledges the ISOPINE (UCO-1265298) and ESPECTRAMED (CGL2017-86161-R) projects for methodological support. We acknowledge the institutional support of the University of Cordoba-Campus de Excelencia CEIA3. We also thank the ERSAF group and, particularly. Cristina Acosta and Antonio Ariza. for their assistance during this research. We thank David Walker for his revisions of the different versions of this manuscript, and the anonymous referees for their comments and corrections. |
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Contenido : |
Abstract: Airborne lidar scanner (ALS) technology is used in a variety of applications, including forestry. ALS has enormous potential for the estimation of relevant biometric parameters in forest plantations. This study investigates the use of an object-oriented semi-automated segmentation algorithm for stands delineation, based on modeling ALS data, in plantations of Eucalyptus grandis and E. dunnii in Uruguay. The results show that non-parametric methods delivered more accurate and less biased results for total volume (TV) with R2 0.93, RMSE 20.04 m3 h ?1 for E. grandis and R2 0.93, RMSE 18.43 m3 h ?1 for E. dunnii; and above ground biomass (AGB) with R2 0.95, RMSE 70.2 kg h?1 for E. grandis and R2 0.96, RMSE: 71.2 Kg h?1 for E. dunnii. Parametric methods performed better for dominant height (Ho) with R2 0.98, RMSE 0.67 m and R2 : 0.96, RMSE: 0.8 m for E. grandis and E. dunnii, respectively. The most informative ALS metrics for the estimation of AGB and TV were metrics related to the elevation in parametric models (Elev.70 and Elev.75), while for the non-parametric models (k-NN) they were Elev.75 and canopy density. For Ho, the ALS metrics selected were also related to elevation both in the parametric (Elev.90 and Elev.99) and random forest models (Elev.max and Elev.75). The segmentation methodology proposed here matched closely the segments delineated by human operators, and provides a low-cost, cost-effective, easy to apply and update model aimed at generating AGB or TV maps for harvest tasks, based on rasters derived from ALS metrics. The present research shows the capacity of ALS metrics to improve extensive strategic inventories; validating and promoting the adoption of ALS technology for inventory forest stands of Eucalyptus spp. in Uruguay. MenosAbstract: Airborne lidar scanner (ALS) technology is used in a variety of applications, including forestry. ALS has enormous potential for the estimation of relevant biometric parameters in forest plantations. This study investigates the use of an object-oriented semi-automated segmentation algorithm for stands delineation, based on modeling ALS data, in plantations of Eucalyptus grandis and E. dunnii in Uruguay. The results show that non-parametric methods delivered more accurate and less biased results for total volume (TV) with R2 0.93, RMSE 20.04 m3 h ?1 for E. grandis and R2 0.93, RMSE 18.43 m3 h ?1 for E. dunnii; and above ground biomass (AGB) with R2 0.95, RMSE 70.2 kg h?1 for E. grandis and R2 0.96, RMSE: 71.2 Kg h?1 for E. dunnii. Parametric methods performed better for dominant height (Ho) with R2 0.98, RMSE 0.67 m and R2 : 0.96, RMSE: 0.8 m for E. grandis and E. dunnii, respectively. The most informative ALS metrics for the estimation of AGB and TV were metrics related to the elevation in parametric models (Elev.70 and Elev.75), while for the non-parametric models (k-NN) they were Elev.75 and canopy density. For Ho, the ALS metrics selected were also related to elevation both in the parametric (Elev.90 and Elev.99) and random forest models (Elev.max and Elev.75). The segmentation methodology proposed here matched closely the segments delineated by human operators, and provides a low-cost, cost-effective, easy to apply and update model aimed at generating AGB or TV... Presentar Todo |
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Palabras claves : |
ABOVE GROUND BIOMASS; DOMINANT HEIGHT; INTENSIVE SILVICULTURE; PARAMETRIC AND NON-PARAMETRIC METHODS; STAND SEGMENTATION; VOLUME. |
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Asunto categoría : |
K10 Producción forestal |
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Marc : |
LEADER 03675naa a2200265 a 4500
001 1061559
005 2020-12-10
008 2020 bl uuuu u00u1 u #d
024 7 $a10.3390/rs12233947$2DOI
100 1 $aHIRIGOYEN, A.
245 $aStand characterization of eucalyptus spp. Plantations in uruguay using airborne lidar scanner technology.$h[electronic resource]
260 $c2020
500 $aArticle history: Received: 16 October 2020 / Revised: 5 November 2020 / Accepted: 21 November 2020 / Published: 2 December 2020. Acknowledgments: The authors thank the Instituto Nacional de Investigaciones Agropecuarias (INIA-Uruguay) for supporting our research work and for help during the fieldwork. We are particularly grateful for the support of Roberto Scoz, Demian Gomez, Zenia Barrios and Gustavo Balmelli (INIA), Mariano Blanco, Santiago Heguaburu, Carola Odone and José Carlos de Mello (FOSA). R.M.N.-C. acknowledges the ISOPINE (UCO-1265298) and ESPECTRAMED (CGL2017-86161-R) projects for methodological support. We acknowledge the institutional support of the University of Cordoba-Campus de Excelencia CEIA3. We also thank the ERSAF group and, particularly. Cristina Acosta and Antonio Ariza. for their assistance during this research. We thank David Walker for his revisions of the different versions of this manuscript, and the anonymous referees for their comments and corrections.
520 $aAbstract: Airborne lidar scanner (ALS) technology is used in a variety of applications, including forestry. ALS has enormous potential for the estimation of relevant biometric parameters in forest plantations. This study investigates the use of an object-oriented semi-automated segmentation algorithm for stands delineation, based on modeling ALS data, in plantations of Eucalyptus grandis and E. dunnii in Uruguay. The results show that non-parametric methods delivered more accurate and less biased results for total volume (TV) with R2 0.93, RMSE 20.04 m3 h ?1 for E. grandis and R2 0.93, RMSE 18.43 m3 h ?1 for E. dunnii; and above ground biomass (AGB) with R2 0.95, RMSE 70.2 kg h?1 for E. grandis and R2 0.96, RMSE: 71.2 Kg h?1 for E. dunnii. Parametric methods performed better for dominant height (Ho) with R2 0.98, RMSE 0.67 m and R2 : 0.96, RMSE: 0.8 m for E. grandis and E. dunnii, respectively. The most informative ALS metrics for the estimation of AGB and TV were metrics related to the elevation in parametric models (Elev.70 and Elev.75), while for the non-parametric models (k-NN) they were Elev.75 and canopy density. For Ho, the ALS metrics selected were also related to elevation both in the parametric (Elev.90 and Elev.99) and random forest models (Elev.max and Elev.75). The segmentation methodology proposed here matched closely the segments delineated by human operators, and provides a low-cost, cost-effective, easy to apply and update model aimed at generating AGB or TV maps for harvest tasks, based on rasters derived from ALS metrics. The present research shows the capacity of ALS metrics to improve extensive strategic inventories; validating and promoting the adoption of ALS technology for inventory forest stands of Eucalyptus spp. in Uruguay.
653 $aABOVE GROUND BIOMASS
653 $aDOMINANT HEIGHT
653 $aINTENSIVE SILVICULTURE
653 $aPARAMETRIC AND NON-PARAMETRIC METHODS
653 $aSTAND SEGMENTATION
653 $aVOLUME
700 1 $aVARO-MARTINEZ, M.A.
700 1 $aRACHID, C.
700 1 $aFRANCO, J.
700 1 $aNAVARRO-CERRILLO, R.M.
773 $tRemote Sensing, 1 December 2020, Volume 12, Issue 23, Article number 3947, Pages 1-19. Open Access. Doi: https://doi.org/10.3390/rs12233947
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