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Registro completo
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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 : |
MILECH, C. G.; DINI, M.; SCARIOTTO, S.; SANTOS, J.; HERTER, F. G.; RASEIRA, M. C. B. |
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Afiliación : |
C. G. MILECH, Postgraduate Program in Agronomy (PPGA), Faculty of Agronomy 'Eliseu Maciel', Federal University of Pelotas (FAEM-UFPel), Pelotas/RS, Brazil; MAXIMILIANO ANTONIO DINI VIÑOLY, Postgraduate Program in Agronomy (PPGA), Faculty of Agronomy 'Eliseu Maciel', Federal University of Pelotas (FAEM-UFPel), Pelotas/RS, Brazil; S. SCARIOTTO, Laboratory of Fruit Breeding, Embrapa Clima Temperado, Pelotas/RS, Brazil; J. SANTOS, Federal University of Maranhao (UFMA), Sao Luís/MA, Brazil; F. G. HERTER, Postgraduate Program in Agronomy (PPGA), Faculty of Agronomy 'Eliseu Maciel', Federal University of Pelotas (FAEM-UFPel), Pelotas/RS, Brazil; M. C. B. RASEIRA, Laboratory of Fruit Breeding, Embrapa Clima Temperado, Pelotas/RS, Brazil. |
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Título : |
Chilling requirement of ten peach cultivars estimated by different models. |
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Complemento del título : |
Original Research Article. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Journal of Experimental Agriculture International, February 2018, Volume 20, Issue 4, p. 1-9. Article no.JEAI.39204. DOI: https://doi.org/10.9734/JEAI/2018/39204 |
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ISSN : |
2457-0591 |
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DOI : |
10.9734/JEAI/2018/39204 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 23 November 2017; Accepted 31 January 2018; Published 8 February 2018.
Authors' contributions: This work was carried out in collaboration between all authors.Authors CGM, FGHand MCBR designed the study, wrote the protocol and wrote the first draft of the manuscript. Authors MD, SS and JS performed the statistical analysis and managed the literature searches. Author MCBR managed the analyses of the study. All authors read and approved the final manuscript. |
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Contenido : |
ABSTRACT.
The adaptation of a temperate climate fruit cultivar to a certain area depends mainly on its chilling requirement and the chilling accumulation in such places. Several attempts have been made to estimate these two conditions, using different models. The great variation among the models to calculate chilling requirement makes it necessary to determine their efficiency in a given location. Aiming to estimate the chilling requirement of ten peach cultivars, including Bonão, Pepita, Maravilha, Precocinho, Turmalina, Diamante, BR-3, Marfim, Coral, and Cambará do Sul, seven models were tested: Utah, Positive Utah, Low Chill, Taiwan, Chilling Hours (≤7.2°C), Chilling Hours (≤11°C), and Dynamic. The results showed that the estimation of chilling accumulation for all the studied cultivars in all the tested models showed a large variability. None of the tested models was perfect for estimating the chilling requirement, especially considering the variable climatic conditions of southern Brazil. Except for the Utah model, any of the others can be used to provide a rough estimate of the chilling requirement of the cultivars; however, the Taiwan and Low Chill models seem to be more suitable. The chilling requirement, which was estimated based on the average over the 11 years of the study, overestimated the real need, when compared to the yields over those years. There are differences among the studied cultivars; however, with the exception of Cambará do Sul, all the others can yield good crops and show good adaptation to the climatic conditions of the southern Rio Grande do Sul.
© Copyright 2010-Till Date, Journal of Experimental Agriculture International. All rights reserved. MenosABSTRACT.
The adaptation of a temperate climate fruit cultivar to a certain area depends mainly on its chilling requirement and the chilling accumulation in such places. Several attempts have been made to estimate these two conditions, using different models. The great variation among the models to calculate chilling requirement makes it necessary to determine their efficiency in a given location. Aiming to estimate the chilling requirement of ten peach cultivars, including Bonão, Pepita, Maravilha, Precocinho, Turmalina, Diamante, BR-3, Marfim, Coral, and Cambará do Sul, seven models were tested: Utah, Positive Utah, Low Chill, Taiwan, Chilling Hours (≤7.2°C), Chilling Hours (≤11°C), and Dynamic. The results showed that the estimation of chilling accumulation for all the studied cultivars in all the tested models showed a large variability. None of the tested models was perfect for estimating the chilling requirement, especially considering the variable climatic conditions of southern Brazil. Except for the Utah model, any of the others can be used to provide a rough estimate of the chilling requirement of the cultivars; however, the Taiwan and Low Chill models seem to be more suitable. The chilling requirement, which was estimated based on the average over the 11 years of the study, overestimated the real need, when compared to the yields over those years. There are differences among the studied cultivars; however, with the exception of Cambará do Sul, all the ... Presentar Todo |
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Palabras claves : |
Adaptation; Chill hours; Chill portions; Chill units; DORMANCY. |
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Thesagro : |
PRUNUS PERSICA. |
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Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15101/1/984-Article-Text-1737-1-10-20181009.pdf
https://www.journaljeai.com/index.php/JEAI/article/download/984/1375/
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Marc : |
LEADER 03090naa a2200289 a 4500
001 1061768
005 2021-02-25
008 2018 bl uuuu u00u1 u #d
022 $a2457-0591
024 7 $a10.9734/JEAI/2018/39204$2DOI
100 1 $aMILECH, C. G.
245 $aChilling requirement of ten peach cultivars estimated by different models.$h[electronic resource]
260 $c2018
500 $aArticle history: Received 23 November 2017; Accepted 31 January 2018; Published 8 February 2018. Authors' contributions: This work was carried out in collaboration between all authors.Authors CGM, FGHand MCBR designed the study, wrote the protocol and wrote the first draft of the manuscript. Authors MD, SS and JS performed the statistical analysis and managed the literature searches. Author MCBR managed the analyses of the study. All authors read and approved the final manuscript.
520 $aABSTRACT. The adaptation of a temperate climate fruit cultivar to a certain area depends mainly on its chilling requirement and the chilling accumulation in such places. Several attempts have been made to estimate these two conditions, using different models. The great variation among the models to calculate chilling requirement makes it necessary to determine their efficiency in a given location. Aiming to estimate the chilling requirement of ten peach cultivars, including Bonão, Pepita, Maravilha, Precocinho, Turmalina, Diamante, BR-3, Marfim, Coral, and Cambará do Sul, seven models were tested: Utah, Positive Utah, Low Chill, Taiwan, Chilling Hours (≤7.2°C), Chilling Hours (≤11°C), and Dynamic. The results showed that the estimation of chilling accumulation for all the studied cultivars in all the tested models showed a large variability. None of the tested models was perfect for estimating the chilling requirement, especially considering the variable climatic conditions of southern Brazil. Except for the Utah model, any of the others can be used to provide a rough estimate of the chilling requirement of the cultivars; however, the Taiwan and Low Chill models seem to be more suitable. The chilling requirement, which was estimated based on the average over the 11 years of the study, overestimated the real need, when compared to the yields over those years. There are differences among the studied cultivars; however, with the exception of Cambará do Sul, all the others can yield good crops and show good adaptation to the climatic conditions of the southern Rio Grande do Sul. © Copyright 2010-Till Date, Journal of Experimental Agriculture International. All rights reserved.
650 $aPRUNUS PERSICA
653 $aAdaptation
653 $aChill hours
653 $aChill portions
653 $aChill units
653 $aDORMANCY
700 1 $aDINI, M.
700 1 $aSCARIOTTO, S.
700 1 $aSANTOS, J.
700 1 $aHERTER, F. G.
700 1 $aRASEIRA, M. C. B.
773 $tJournal of Experimental Agriculture International, February 2018, Volume 20, Issue 4, p. 1-9. Article no.JEAI.39204. DOI: https://doi.org/10.9734/JEAI/2018/39204
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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 : |
15/09/2014 |
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Actualizado : |
09/10/2018 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - 1 |
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Autor : |
VIÑOLES, C.; PAGANONI, B.L.; MCNATTY, K.P.; HEATH, D.A.; THOMPSON, A.N.; GLOVER, K.M.M.; MILTON, J.T.B.; MARTIN, G.B. |
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Afiliación : |
CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Follicle development, endocrine profiles and ovulation rate in adult Merino ewes-effects of early nutrition (pre-and post-natal) and supplementation with lupin grain. |
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Fecha de publicación : |
2014 |
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Fuente / Imprenta : |
Reproduction, 2014, v. 147, no. 1, p. 101-110. |
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DOI : |
10.1530/REP-13-0104 |
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Idioma : |
Inglés |
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Notas : |
History article: Received 14 March 2013; First decision 8 April 2013; Revised manuscript received 17 October 2013; Accepted 23 October 2013. |
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Contenido : |
In adult ewes, we tested whether ovarian function, including the response to short-term supplementation, was affected by the nutrition of their mothers during the pre-/postnatal period. A 2x2 factorial was used with nutrition in early life (low or high) and a 6- day supplement (with or without) as factors. All ewes received 3 prostaglandin injections 7 days apart, and the supplement (lupin grain) was fed for 6 days from 2 days after the second until the third prostaglandin injection. We measured reproductive and metabolic hormones, studied follicle dynamics (ultrasonography), and evaluated granulosa cell numbers, aromatase activity and oestradiol concentrations in follicular fluid in healthy follicles at Days 3 and 7 of supplementation. Ovulation rate was increased by 25% by exposure to high pre-/post-natal nutrition (1.5 versus 1.2; P < 0.05), in association with a small decrease in FSH concentrations (P = 0.06) and a small increase in insulin concentrations (P = 0.07). The number of healthy astral follicles was not affected. Acute supplementation increased the number of granulose cells (3.7 ??0.2 vs 3.0 ??0.2 million; P < 0.05) in the largest follicle, and the circulating concentrations of oestradiol (4.6 ??0.3 vs 3.9 ??0.3 pmol/L; P < 0.05) and glucose (3.4 ??0.03 vs 3.3 ??0.03 mmol/L; P < 0.01). Both early life nutrition and acute supplementation appear to affect ovulation rate through changes in glucose-insulin homeostasis that alter follicular responsiveness to FSH and therefore oestradiol-FSH balance. MenosIn adult ewes, we tested whether ovarian function, including the response to short-term supplementation, was affected by the nutrition of their mothers during the pre-/postnatal period. A 2x2 factorial was used with nutrition in early life (low or high) and a 6- day supplement (with or without) as factors. All ewes received 3 prostaglandin injections 7 days apart, and the supplement (lupin grain) was fed for 6 days from 2 days after the second until the third prostaglandin injection. We measured reproductive and metabolic hormones, studied follicle dynamics (ultrasonography), and evaluated granulosa cell numbers, aromatase activity and oestradiol concentrations in follicular fluid in healthy follicles at Days 3 and 7 of supplementation. Ovulation rate was increased by 25% by exposure to high pre-/post-natal nutrition (1.5 versus 1.2; P < 0.05), in association with a small decrease in FSH concentrations (P = 0.06) and a small increase in insulin concentrations (P = 0.07). The number of healthy astral follicles was not affected. Acute supplementation increased the number of granulose cells (3.7 ??0.2 vs 3.0 ??0.2 million; P < 0.05) in the largest follicle, and the circulating concentrations of oestradiol (4.6 ??0.3 vs 3.9 ??0.3 pmol/L; P < 0.05) and glucose (3.4 ??0.03 vs 3.3 ??0.03 mmol/L; P < 0.01). Both early life nutrition and acute supplementation appear to affect ovulation rate through changes in glucose-insulin homeostasis that alter follicular responsiveness to FSH a... Presentar Todo |
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Thesagro : |
OVINOS. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 02402naa a2200241 a 4500
001 1050229
005 2018-10-09
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1530/REP-13-0104$2DOI
100 1 $aVIÑOLES, C.
245 $aFollicle development, endocrine profiles and ovulation rate in adult Merino ewes-effects of early nutrition (pre-and post-natal) and supplementation with lupin grain.
260 $c2014
500 $aHistory article: Received 14 March 2013; First decision 8 April 2013; Revised manuscript received 17 October 2013; Accepted 23 October 2013.
520 $aIn adult ewes, we tested whether ovarian function, including the response to short-term supplementation, was affected by the nutrition of their mothers during the pre-/postnatal period. A 2x2 factorial was used with nutrition in early life (low or high) and a 6- day supplement (with or without) as factors. All ewes received 3 prostaglandin injections 7 days apart, and the supplement (lupin grain) was fed for 6 days from 2 days after the second until the third prostaglandin injection. We measured reproductive and metabolic hormones, studied follicle dynamics (ultrasonography), and evaluated granulosa cell numbers, aromatase activity and oestradiol concentrations in follicular fluid in healthy follicles at Days 3 and 7 of supplementation. Ovulation rate was increased by 25% by exposure to high pre-/post-natal nutrition (1.5 versus 1.2; P < 0.05), in association with a small decrease in FSH concentrations (P = 0.06) and a small increase in insulin concentrations (P = 0.07). The number of healthy astral follicles was not affected. Acute supplementation increased the number of granulose cells (3.7 ??0.2 vs 3.0 ??0.2 million; P < 0.05) in the largest follicle, and the circulating concentrations of oestradiol (4.6 ??0.3 vs 3.9 ??0.3 pmol/L; P < 0.05) and glucose (3.4 ??0.03 vs 3.3 ??0.03 mmol/L; P < 0.01). Both early life nutrition and acute supplementation appear to affect ovulation rate through changes in glucose-insulin homeostasis that alter follicular responsiveness to FSH and therefore oestradiol-FSH balance.
650 $aOVINOS
700 1 $aPAGANONI, B.L.
700 1 $aMCNATTY, K.P.
700 1 $aHEATH, D.A.
700 1 $aTHOMPSON, A.N.
700 1 $aGLOVER, K.M.M.
700 1 $aMILTON, J.T.B.
700 1 $aMARTIN, G.B.
773 $tReproduction, 2014$gv. 147, no. 1, p. 101-110.
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