SciELO - Scientific Electronic Library Online

 
vol.40 número1ETHEPHON E CLORETO DE CÁLCIO, UMA COMBINAÇÃO QUE PROMOVE A MELHORIA DA COR DE UVAS ‘RUBI’EFEITO DE PRODUTOS CONVENCIONAIS E ALTERNATIVOS NO CONTROLE DE DOENÇAS PÓS-COLHEITA DO ABACATE índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Revista Brasileira de Fruticultura

versão impressa ISSN 0100-2945versão On-line ISSN 1806-9967

Resumo

MICHELOUD, Norma Guadalupe et al. FACTORS AFFECTING PHENOLOGY OF DIFFERENT Citrus VARIETIES UNDER THE TEMPERATE CLIMATE CONDITIONS OF SANTA FE, ARGENTINA. Rev. Bras. Frutic. [online]. 2018, vol.40, n.1, e-315.  Epub 15-Fev-2018. ISSN 0100-2945.  http://dx.doi.org/10.1590/0100-29452018315.

The aim of this study was to characterize the phenology of different sweet orange, tangerines and tangerine hybrid varieties growing under the temperate climate conditions of Santa Fe Province, Argentina. Phenological stages were observed weekly during five consecutive years using a BBCH (Biologische Bundesanstalt, Bundessortenamt and Chemical industry) scale adapted for Citrus trees. All varieties showed a winter rest period from June to August. ‘New Hall’ and ‘Navelina’ varieties were the first to reach sprouting stage, whereas ‘Okitsu’ was the last. Inception of flowering occurred from August 13th to September 6th; and full bloom from September 12th to October 2nd. Fruit harvest started with the ‘Okitsu’ cultivar in March, and continued over a 7-month period. Interannual variation for inception of sprouting was high (44 days), and sprouting was correlated with both thermal accumulation (above 13ºC) and the amount of solar radiation measured during July (p<0.0001; r2=0.79). Navel oranges and the ‘Murcott’ hybrid bloomed 5–15 days earlier than other varieties, increasing probability of damage by late frosts.

Palavras-chave : BBCH scale; flowering; fruit set; harvest; sprouting; thermal accumulation.

        · resumo em Português     · texto em Inglês     · Inglês ( pdf )