Agroclimatic zoning for avocado culture in the state of Parana/Zoneamento agroclimatico para a cultura do abacateiro no estado do Parana

Avocado cultivars have a great diversity of tolerance to low temperatures due to their regions of origin. The Mexican breeds are more tolerant, the West Indian breeds are more sensitive and the Guatemalan breeds have intermediate behavior. In this study, the zoning of climate risks in the state of P...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Revista Brasileira de fruticultura 2014-06, Vol.36 (2), p.363
Hauptverfasser: Zaro, Geovanna Cristina, Ricce, Wilian Da Silva, Caramori, Paulo Henrique, Carvalho, Sergio Luiz Colucci, Vicentini, Maria Elisa
Format: Artikel
Sprache:spa
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Avocado cultivars have a great diversity of tolerance to low temperatures due to their regions of origin. The Mexican breeds are more tolerant, the West Indian breeds are more sensitive and the Guatemalan breeds have intermediate behavior. In this study, the zoning of climate risks in the state of Parana was based on the severity of frost, through the analysis of historical series of minimum temperatures in a Geographic Information System. We identiied four distinct areas of risk, namely, a zone with very strong and frequent frosts where cultivation is not recommended, a zone where frosts are strong and only the cultivar Fuerte is recommended, a zone with moderate frosts and only Primavera and Margarida cultivars are not recommended, and a zone of low risk in the north and west of Parana, where all cultivars are indicated. The diversity of climates in Parana and thermal requirements of the cultivars allow the harvest during most of the year through a combination of different cultivars and growing regions. Index terms: Persea americana, risk of frost, degree days, harvesting period. O abacateiro apresenta grande diversidade de tolerancia a baixas temperaturas devido as suas regioes de origem. As racas mexicanas sao mais tolerantes, as racas antilhanas sao mais sensiveis e as guatemalenses tem comportamento intermediario. Neste trabalho o zoneamento de riscos climaticos fundamentou-se na severidade das geadas, por meio da analise de series historicas de temperaturas minimas em um ambiente de Sistema de Informacao Geograica. Foram identiicadas quatro zonas distintas de risco, caracterizando geadas muito fortes e frequentes, onde nao se recomenda o cultivo; geadas fortes, onde somente a cultivar Fuerte e recomendada; geadas moderadas, onde somente as cultivares Primavera e Margarida nao sao recomendadas, e uma zona de baixo risco, no norte e oeste do Parana, onde todas as cultivares sao indicadas. As diversidades de climas no Parana e as exigencias termicas das cultivares possibilitam a colheita em grande parte do ano por meio da combinacao de diferentes cultivares e regioes de plantio. Termos para indexacao Persea americana, risco de geadas, graus-dia, epocas de colheita.
ISSN:0100-2945
DOI:10.1590/0100-2945-286/13