Produção e desenvolvimento da nogueira macadâmia em clima Cwa / Macadamia production and development at the Cwa climate

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

26/06/2012

RESUMO

The macadamia cultivation presents itself as an important alternative for fruit growers of the State of São Paulo, mainly because of its rusticity and the value reached by their fruits. However, studies related to their development and characteristics of production are essential for the correct choice of the variety to be cultivated. In order to characterize the development and the fruit and nursery trees production for different macadamia cultivars in the Cwa climate, different experiments have been carried out in the city of Dois Córregos, State of São Paulo: Seedling emergence of eight macadamia cultivars; Seedling emergence of macadamia rootstock Aloha at different temperatures; Seedling emergence from seeds treated with incision and immersion in gibberellic acid; Rooting of different types of cuttings of macadamia rootstock Aloha treated with indolbutyric acid; Air layering in branches of macadamia rootstock Aloha, done at different periods and treated with different concentrations of indolbutyric acid; Flowering phenology of eight macadamia cultivars in Cwa climate; Production performance and biometry of different macadamia cultivars and oil content and composition of different macadamia cultivars. The results have shown that under these conditions the highest percentage of seedling emergence was achieved by the cultivar Campinas-B, as well as higher dry mass of shoot and root system; Regarding the Aloha cultivar, the highest seedling emergence was achieved by a temperature of 27.5 C. The incision and immersion of seeds in gibberellic acid brought no benefits to the seedling emergence and development; The highest rooting percentage was obtained with the cultivar B 4-12; Cuttings with two leaves provided a higher rooting percentage; The best results for the air layering propagation were obtained on December; 13 phonology stages have been observed, with the swelling of buds between May and June, anthesis between July and August and fruit drop between February and March; The 816 cultivar presented the highest values for the nut and almond diameter and for the almond weight; Cultivars 344, 1-21 and 4-12 B had the biggest production. For the kernel recovery (KR) rate, the best results were obtained with cultivars 344, 660 and Aloha; Cultivars 660, 4-20 and 1-21 presented the highest oil percentages, and cultivar 344 the best oil quality.

ASSUNTO(S)

biometria biometrics fenologia macadâmia mudas - produção nut phenology production propagação vegetal propagation

ACESSO AO ARTIGO

Documentos Relacionados