Biological method of single-node cuttings for budburst in five fig cultivars subjected to artificial chilling

Palavras-chave: Ficus carica L.; chilling requirements; dormancy; phenology

Resumo

Fig orchard expansion requires knowledge of the thermal requirements of genotypes available in different climatic regions. The budburst of fig cultivars was assessed by biological single-node cutting and exposure to artificial chilling. Cuttings from five cultivars were collected during two crop seasons, subsequently packaged in a horizontal position in a cold chamber (8 ± 0.5ºC), and artificially chilled for 0, 40, 80, 120, and 160h. Cuttings were preserved under controlled conditions (23 ± 1°C, RH 85%, and 16h photoperiod). The variables evaluated were the budding velocity, average time and final rate of sprouting, vigorous shoot rate, and average time to leaf opening. The single-node cutting test allowed the assessment of dormancy, which is influenced by the accumulation of chilling in each crop season. The average time and final budding rate varied depending on the temperature requirements for budding. The cultivars were classified on an increasing scale according to their chilling requirements as follows: Pingo de Mel < Roxo de Valinhos < Brown Turkey < White Genova < Troyano. The traditional cultivar in Brazil is Roxo de Valinhos, but all of the cultivars studied had the potential to diversify the fig orchards in this region.

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Publicado
2023-10-11
Como Citar
Monteiro, L. N. H., Leonel, S., Souza, J. M. A., Ribeiro, L. R., Martins, R. C., Ferreira, A. F. A., & Rodrigues, M. G. F. (2023). Biological method of single-node cuttings for budburst in five fig cultivars subjected to artificial chilling . Acta Scientiarum. Agronomy, 46(1), e62544. https://doi.org/10.4025/actasciagron.v46i1.62544
Seção
Produção Vegetal

Funding data

 

2.0
2019CiteScore
 
 
60th percentile
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2.0
2019CiteScore
 
 
60th percentile
Powered by  Scopus