EVALUATION OF CARROT CULTIVARS USING TWO SOURCES OF ORGANIC MANURE, IN PORTO ALEGRE COUNTY, RS, BRAZIL
Abstract
The main objective of the experimenta carried out in August 12, 1993 and in October 6, 1995 at the Estação de Pesquisa e Produção de Viamão, Rio Grande do Sul, Southern Brazil was to compare the effect of organic manure on yield and quality of carrot cultivars. In the first experiment the cultivars Nantes Forto, Flakkese, Fuyumaki, Nantes Superior and Harumaki Kinko were evaluated. In 1995 `Nantes Superior' and `Harumaki Kinko' were replaced by 'Brasília' and `Tin Ton'. For the manuring treatments, chicken and quail manure were used in two leveis. In the first experiment results showed a h igher yield for Nantes Forto' for the commercial roots. The materiais differed in number of roots, weight, diameter and lenght. In the second experiment, results did not show significant differences among cultivars. However, there were differences in the average weight (better with 'Brasília') and in average length (better with `Tin Ton'). In 1 993. organic manure provided an increase in ali the factors evaluated, except in the number of roots. In the second one, the organic manure provided an increase in average root weight, average root diameter and average root length.
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