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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
26/01/2024 |
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Actualizado : |
26/01/2024 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
GONZALEZ NIETO, L.; FRANCESCATTO, P.; CARRA, B.; ROBINSON, T.L. |
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Afiliación : |
LUIS GONZALEZ NIETO, Horticulture Section, School of Integrative Plant Science, Cornell University, Geneva, 14456, NY, United States; POLIANA FRANCESCATTO, Valent BioSciences, Libertyville, 60048, IL, United States; BRUNO CARRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; TERENCE LEE ROBINSON, Horticulture Section, School of Integrative Plant Science, Cornell University, Geneva, 14456, NY, United States. |
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Título : |
Metamitron thinning efficacy of apple fruitlets is affected by different rates, timings and weather factors in New York State. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Horticulturae, 2023, Volume 9, Issue 11, article 1179. https://doi.org/10.3390/horticulturae9111179 -- OPEN ACCESS. |
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ISSN : |
2311-7524 |
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DOI : |
10.3390/horticulturae9111179 |
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Idioma : |
Inglés |
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Notas : |
Article history: Submission received: 6 October 2023, Revised: 24 October 2023, Accepted: 26 October 2023, Published: 28 October 2023. -- Document type: Article Gold Open Access. -- Correspondence: Gonzalez Nieto, L.; Horticulture Section, School of Integrative Plant Science, Cornell University, Geneva, NY, United States; email:lg579@cornell.edu -- This article belongs to the Collection Precision Management Systems for Sustainable Orchards and Vineyards (https://www.mdpi.com/journal/horticulturae/topical_collections/QAD12207C7 ). -- LICENSE: Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
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Contenido : |
ABSTRACT.- Precision chemical thinning is the most common method of thinning apple fruitlets because it requires little time and is cost-effective. The aims of the current study were I.- to investigate the effect of the application of metamitron at different rates on 'Gala' apples; II.- to determine which fruit diameters were most sensitive to metamitron spray at several rates (between 180 and 500 ppm); and III- to identify the key environmental factors that explain Metamitron efficacy on a year-to-year basis. Eighteen trials were conducted over seven seasons, from 2015 to 2022 in 'Gala' apple orchards in Geneva (New York State). Metamitron was applied at different rates between 180 and 500 ppm, and the timing of the application was between petal fall (4.5 mm) and 18.5 mm fruit size. In each of the studies and years, the effect of meteorological parameters was evaluated. Our results suggest that a linear rate effect was observed in all trials, but that there were differences between the slopes of the regression every year because chemical thinning efficacy was variable year to year. The maximum metamitron efficacy was between 9.5 and 11 mm king fruit diameter; however, metamitron showed thinning efficacy at all phenological stages, from petal fall to 18.5 mm in 'Gala' apples. Our results suggest that the important meteorological factors affecting thinning efficacy were temperature and solar radiation on the day of application and for the next 6 days. The solar radiation after application of metamitron was the most important meteorological factor. Fruit drop caused by metamitron increased with low solar radiation. The minimum and maximum temperatures were also important factors in determining metamitron efficacy. A high minimum temperature (during the night) increased the fruit drop caused by metamitron and the maximum temperature during the day showed a negative correlation with the efficacy of metamitron. © 2023 by the authors. MenosABSTRACT.- Precision chemical thinning is the most common method of thinning apple fruitlets because it requires little time and is cost-effective. The aims of the current study were I.- to investigate the effect of the application of metamitron at different rates on 'Gala' apples; II.- to determine which fruit diameters were most sensitive to metamitron spray at several rates (between 180 and 500 ppm); and III- to identify the key environmental factors that explain Metamitron efficacy on a year-to-year basis. Eighteen trials were conducted over seven seasons, from 2015 to 2022 in 'Gala' apple orchards in Geneva (New York State). Metamitron was applied at different rates between 180 and 500 ppm, and the timing of the application was between petal fall (4.5 mm) and 18.5 mm fruit size. In each of the studies and years, the effect of meteorological parameters was evaluated. Our results suggest that a linear rate effect was observed in all trials, but that there were differences between the slopes of the regression every year because chemical thinning efficacy was variable year to year. The maximum metamitron efficacy was between 9.5 and 11 mm king fruit diameter; however, metamitron showed thinning efficacy at all phenological stages, from petal fall to 18.5 mm in 'Gala' apples. Our results suggest that the important meteorological factors affecting thinning efficacy were temperature and solar radiation on the day of application and for the next 6 days. The solar radiation afte... Presentar Todo |
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Palabras claves : |
Brevis; Maximum temperature; Metamitron; Minimum temperature; SISTEMA VEGETAL INTENSIVO - INIA; Solar radiation; Thinning efficacy. |
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Asunto categoría : |
F01 Cultivo |
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URL : |
https://www.mdpi.com/2311-7524/9/11/1179/pdf
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Marc : |
LEADER 03642naa a2200277 a 4500
001 1064438
005 2024-01-26
008 2023 bl uuuu u00u1 u #d
022 $a2311-7524
024 7 $a10.3390/horticulturae9111179$2DOI
100 1 $aGONZALEZ NIETO, L.
245 $aMetamitron thinning efficacy of apple fruitlets is affected by different rates, timings and weather factors in New York State.$h[electronic resource]
260 $c2023
500 $aArticle history: Submission received: 6 October 2023, Revised: 24 October 2023, Accepted: 26 October 2023, Published: 28 October 2023. -- Document type: Article Gold Open Access. -- Correspondence: Gonzalez Nieto, L.; Horticulture Section, School of Integrative Plant Science, Cornell University, Geneva, NY, United States; email:lg579@cornell.edu -- This article belongs to the Collection Precision Management Systems for Sustainable Orchards and Vineyards (https://www.mdpi.com/journal/horticulturae/topical_collections/QAD12207C7 ). -- LICENSE: Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
520 $aABSTRACT.- Precision chemical thinning is the most common method of thinning apple fruitlets because it requires little time and is cost-effective. The aims of the current study were I.- to investigate the effect of the application of metamitron at different rates on 'Gala' apples; II.- to determine which fruit diameters were most sensitive to metamitron spray at several rates (between 180 and 500 ppm); and III- to identify the key environmental factors that explain Metamitron efficacy on a year-to-year basis. Eighteen trials were conducted over seven seasons, from 2015 to 2022 in 'Gala' apple orchards in Geneva (New York State). Metamitron was applied at different rates between 180 and 500 ppm, and the timing of the application was between petal fall (4.5 mm) and 18.5 mm fruit size. In each of the studies and years, the effect of meteorological parameters was evaluated. Our results suggest that a linear rate effect was observed in all trials, but that there were differences between the slopes of the regression every year because chemical thinning efficacy was variable year to year. The maximum metamitron efficacy was between 9.5 and 11 mm king fruit diameter; however, metamitron showed thinning efficacy at all phenological stages, from petal fall to 18.5 mm in 'Gala' apples. Our results suggest that the important meteorological factors affecting thinning efficacy were temperature and solar radiation on the day of application and for the next 6 days. The solar radiation after application of metamitron was the most important meteorological factor. Fruit drop caused by metamitron increased with low solar radiation. The minimum and maximum temperatures were also important factors in determining metamitron efficacy. A high minimum temperature (during the night) increased the fruit drop caused by metamitron and the maximum temperature during the day showed a negative correlation with the efficacy of metamitron. © 2023 by the authors.
653 $aBrevis
653 $aMaximum temperature
653 $aMetamitron
653 $aMinimum temperature
653 $aSISTEMA VEGETAL INTENSIVO - INIA
653 $aSolar radiation
653 $aThinning efficacy
700 1 $aFRANCESCATTO, P.
700 1 $aCARRA, B.
700 1 $aROBINSON, T.L.
773 $tHorticulturae, 2023, Volume 9, Issue 11, article 1179. https://doi.org/10.3390/horticulturae9111179 -- OPEN ACCESS.
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Registro original : |
INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
10/05/2018 |
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Actualizado : |
29/03/2021 |
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Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
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Autor : |
LEMA, O.M.; AGUILAR, I.; DIONELLO, N.J.L.; CARDOSO, F.F.; RAVAGNOLO, O.; GIMENO, D. |
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Afiliación : |
OSCAR MARIO LEMA QUEIJO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; IGNACIO AGUILAR GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Universidade Federal de Pelotas, Brazil.; Universidade Federal de Pelotas, Brazil./Embrapa Pecuaria Sul, Brazil.; OLGA RAVAGNOLO GUMILA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Facultad de Agronomía, Universidad de la República, Uruguay ./ Secretariado Uruguayo de la Lana, Uruguay. |
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Título : |
Additive, heterotic and recombination losses for direct and maternal effects in growth for British, Continental and Zebu crosses. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
In: Proceedings of the World Congress on Genetics Applied to Livestock Production, 11., Aotea Centre Auckland, New Zealand: WCGALP, ICAR, 11-16 feb 2018. |
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Idioma : |
Inglés |
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Contenido : |
Summary: Individual and maternal additive and non-additive effects for weights taken every 3 months from birth to 36 months were estimated for Hereford (H/H), Angus (A/A), Salers (S/S) and Nellore (N/N). For the analysis 45.794 weight records from 4.050 animals (2.036 male and 2.014 females), were used. Data corresponds to 39 different breed combinations, H/H and A/A pure breed and 37 groups whit A/A, S/S and N/N crosses with H/H. Data was grouped into 754 contemporary groups defined by sex, year at birth, calving period, experiment, cow parity and the date of weight. Parameters were estimated through model were genetic crossbreeding effects based on Dickerson full model. British breeds provided improved combinations of additive effects, while Zebu breed provided larger values for heterosis and recombination loss. The benefit of using crossbred females is maintained until 3 years of age for British x British and British x Continental. The benefit is also maintained until 3 years of age for Zebu x British while proportion of British is larger than proportion of Zebu. Additive and non-additive effects relevance are maintained at least until 36 months of age. The best combination for growth until 36 months of age is obtained by F1 N/H females, given the maximum use of maternal heterosis and the use of half of the individual heterosis between these breeds, which compensates the negative additive effects of the Zebu breed. |
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Palabras claves : |
BEEF CATTLE; CROSSBREEDING; NON-ADDITIVE EFFECTS. |
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Thesagro : |
GANADO DE CARNE; MEJORAMIENTO ANIMAL. |
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Asunto categoría : |
L10 Genética y mejoramiento animal |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/9539/1/Lema-Additive-heterotic-and-recombination-losses-dir-and-mat-eff-in-growth-for-Bt-Cont-and-Zb-crosses.pdf
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Marc : |
LEADER 02265nam a2200229 a 4500
001 1058569
005 2021-03-29
008 2018 bl uuuu u01u1 u #d
100 1 $aLEMA, O.M.
245 $aAdditive, heterotic and recombination losses for direct and maternal effects in growth for British, Continental and Zebu crosses.$h[electronic resource]
260 $aIn: Proceedings of the World Congress on Genetics Applied to Livestock Production, 11., Aotea Centre Auckland, New Zealand: WCGALP, ICAR, 11-16 feb 2018.$c2018
520 $aSummary: Individual and maternal additive and non-additive effects for weights taken every 3 months from birth to 36 months were estimated for Hereford (H/H), Angus (A/A), Salers (S/S) and Nellore (N/N). For the analysis 45.794 weight records from 4.050 animals (2.036 male and 2.014 females), were used. Data corresponds to 39 different breed combinations, H/H and A/A pure breed and 37 groups whit A/A, S/S and N/N crosses with H/H. Data was grouped into 754 contemporary groups defined by sex, year at birth, calving period, experiment, cow parity and the date of weight. Parameters were estimated through model were genetic crossbreeding effects based on Dickerson full model. British breeds provided improved combinations of additive effects, while Zebu breed provided larger values for heterosis and recombination loss. The benefit of using crossbred females is maintained until 3 years of age for British x British and British x Continental. The benefit is also maintained until 3 years of age for Zebu x British while proportion of British is larger than proportion of Zebu. Additive and non-additive effects relevance are maintained at least until 36 months of age. The best combination for growth until 36 months of age is obtained by F1 N/H females, given the maximum use of maternal heterosis and the use of half of the individual heterosis between these breeds, which compensates the negative additive effects of the Zebu breed.
650 $aGANADO DE CARNE
650 $aMEJORAMIENTO ANIMAL
653 $aBEEF CATTLE
653 $aCROSSBREEDING
653 $aNON-ADDITIVE EFFECTS
700 1 $aAGUILAR, I.
700 1 $aDIONELLO, N.J.L.
700 1 $aCARDOSO, F.F.
700 1 $aRAVAGNOLO, O.
700 1 $aGIMENO, D.
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INIA La Estanzuela (LE) |
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