Facebook
Twitter
YouTube
Instagram
    • español
    • English
  • Contacto
  • English 
    • español
    • English
  • Login
AboutAuthorsTitlesSubjectsCollectionsCommunities☰
JavaScript is disabled for your browser. Some features of this site may not work without it.
View Item 
    xmlui.general.dspace_homeCentros Regionales y EEAsCentro Regional Buenos Aires NorteEEA San PedroArtículos científicosxmlui.ArtifactBrowser.ItemViewer.trail
  • DSpace Home
  • Centros Regionales y EEAs
  • Centro Regional Buenos Aires Norte
  • EEA San Pedro
  • Artículos científicos
  • View Item

Comparison of methods for estimation of chilling and heat requirements of nectarine and peach genotypes for flowering

Abstract
Chilling and heat requirements for breaking dormancy and flowering were studied in 63 nectarine and 118 peach genotypes (Prunus persica (L.) Batsch) for seven years. We compared two methods for estimation of requirements and four models for calculation of chill accumulation: Chilling Hours (CH), Chilling Units (CU), Positive Chilling Units (PCU) and Dynamic, while heat accumulations were estimated in growing degree hours (GDH). Additionally, correlations [ver mas...]
Chilling and heat requirements for breaking dormancy and flowering were studied in 63 nectarine and 118 peach genotypes (Prunus persica (L.) Batsch) for seven years. We compared two methods for estimation of requirements and four models for calculation of chill accumulation: Chilling Hours (CH), Chilling Units (CU), Positive Chilling Units (PCU) and Dynamic, while heat accumulations were estimated in growing degree hours (GDH). Additionally, correlations between chilling requirements, heat requirements and flowering date were established. Our results suggest that the Luedeling model is better than the Alonso model to estimate chilling and heat requirements in our field conditions. Moreover, it is recommendable to calculate the chill accumulation in accordance with the Chilling Hours or Positive Utah models. Additionally, since chilling requirements were positively correlated with flowering dates, they seem to be important to regulate blooming in nectarine and peach genotypes. [Cerrar]
Thumbnail
Author
Maulión, Evangelina;   Valentini, Gabriel Hugo;   Kovalevski, Leandro;   Prunello, Marcos;   Monti, Laura Lucía;   Daorden, Maria Elena;   Quaglino, Marta;   Cervigni, Gerardo Domingo Lucio;  
Fuente
Scientia Horticulturae 177 : 112-117 (October 2014)
Date
2014-10-02
Editorial
Elsevier
ISSN
0304-4238
URI
https://www.sciencedirect.com/science/article/pii/S0304423814004269
http://hdl.handle.net/20.500.12123/5000
DOI
https://doi.org/10.1016/j.scienta.2014.07.042
Formato
pdf
Tipo de documento
artículo
Palabras Claves
Durazno; Peaches; Genotipos; Genotypes; Nectarina; Nectarines; Enfriamiento; Cooling; Calor; Heat; Floración; Flowering; Pelón;
Derechos de acceso
Restringido
Descargar
Compartir
  • Compartir
    Facebook Email Twitter Mendeley
Excepto donde se diga explicitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Metadata
Show full item record