Early Evaluation of Camu-Camu Subsamples in Transition Savanna/Forest Area

Luis Felipe Paes De Almeida,Teresinha Costa Silveira Albuquerque,Fernando Barreto Queiroz,Edvan Alves Chagas,Kaoru Yuyama,Carlos Abanto Rodriguez,Ricardo Manuel Bardales Lozano

doi:10.5539/jas.v6n11p178

Luis Felipe Paes De Almeida, Teresinha Costa Silveira Albuquerque + Show 5 more

Open Access

https://doi.org/10.5539/jas.v6n11p178

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Abstract

Camu-camu (Myrciaria dubia (Kunth) McVaugh) is an indigenous fruit of the floodplain and riparian forests of the Amazon region. In Brazil, Roraima state has appropriate conditions for this fruit production. Cultivation outside the floodplains is an alternative to increase the availability of fruits, since flowering occurs almost all year round, and fruit bearing coincides with the end of the dry season and early rain season. The objective of this study was to evaluate the vegetative development of 6 camu-camu subsamples selected from the Instituto Nacional de Pesquisas da Amazonia- INPA (Amazonas state), in a savanna region near Boa Vista city (Roraima, Brazil). The experiment was conducted at the Serra da Prata Experimental Station of the Empresa Brasileira de Pesquisa Agropecuaria (EMBRAPA), with a climate type Am according to Koppen climate classification. Four parameters were evaluated for the growth analysis, the basal stem diameter (mm), the plant height (cm), and numbers of basal and terminal shoots, as well as the numbers of flowers and fruits. Measurements were made at 90 days intervals in order to define the growth curve of each subsample for 30 months Based on the parameters of vegetative growth and early flowering, we recommend the UAT 1096-5 subsample with the best vegetative development for transition forest/Savanna area, presenting moreover higher number of terminal shoots, greater height, and early flowering than the remaining camu-camu subsamples. At 30 months after planting, the UAT 1896-7 and UAT 0796-8 subsamples showed no statistical difference from UAT 1096-5 regarding the number of terminal shoots, but showed slightly lower height, with a statistically significant difference. The UAT 1596-7, UAT 1796-7, and URUBU-2 subsamples showed the lowest number of terminal shoots, although UAT 1596-7 presented greater height than the others. In relation to precocity, peak flowering occurred in January, 30 months after planting, with the UAT 0796-8 and UAT 1096-5 subsamples excelling over others, with 500 and 435 flowers in total, respectively.

Highlights

Camu-camu (Myrciaria dubia (Kunth) Mc Vaugh) is an indigenous fruit of the floodplains forests that form dense stands along oxbow lakes of river courses of the Amazon region [Figure 1]
The study was conducted at the experimental field of Serra da Prata, belonging to State owned Empresa Brasileira de Pesquisa Agropecuária-EMBRAPA, in Mucajaí (Roraima state), Brazil, whose geographical location of the experimental area is located on 60°58'40"W; 2°23'49"N
The number of basal shoots was recorded for analysis of canopy formation, since the larger the number of basal shoots, the greater the possibility of having terminal shoots which are able to bear fruit

Summary

Introduction

Camu-camu (Myrciaria dubia (Kunth) Mc Vaugh) is an indigenous fruit of the floodplains forests that form dense stands along oxbow lakes of river courses of the Amazon region [Figure 1]. It and has good organoleptic characteristics and, at the same time, it is a great source of vitamin C, minerals, and antioxidants, showing an excellent nutraceutical value. The species is distributed throughout much of the Brazilian Amazon, in the states of Pará, Amapá, Amazonas, Rondônia, Roraima, and Mato Grosso It occurs in Peru, Venezuela, and Colombia (McVaugh, 1963)

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