Boi. Mus. Para. Emílio Goeldi, sér. Bot. 18(1), 2002 
ocorreu nos teste de polinização cruzada e aberta que tiveram as 
maiores médias de flores fecundadas e abortadas, e também de frutos 
colhidos. Com base nesses resultados pode-se coneluir que todos os 
acessos são predominantemente alógamos. 
PALAVRAS-CHAVE: Agamospermia, Autogamia, Polinização 
cruzada. Reprodução. 
ABSTRACT: The black palm is a native fruit bowl ofthe Amazonian 
with economical potential whose thefruits are iised in the obtaining 
of a drink known for “bacaba ", but it has been a little studied. In this 
Work, the reproduetive System of black palm accessions belonging to 
the Collection of Germoplasm of Oriental Amazonian Embrapa was 
evaluated, at Belém, PA. In eight accessions comingfromAbaetetuba, 
PA and two plants per accessions. A dose inflorescence was marked 
the maturation in each plant for us to be applied five reproduetive 
tests, being three, raehilla for each test. The appraised characteristies 
were: fecundated flowers (FF), fali flowers (FC), aborted flowers 
(FA) and picked fruits ( FRC), expressed in percentages. The statistical 
analysis were made with base in the completely randomized design 
in factorial 8x5 with six replications. The accesses, reproduetive 
tests and the interaction access x tests they presented significant 
differences forall the variables (P <0,01). One aceession presented 
the more pereentage of fali flowers. Whole other three the more 
percentages of fecundated flowers and aborted. For pereentage of 
fruit set four accessions were the best. In agamospermy and self- 
pollination were registered the more percentages of fali flowers. 
Ilowever, in the test of cross-poilination and open oceured the more 
means for feeundated flowers, aborted and friiti set. With base in 
those resuits can be concluded that all the accessions present 
predominance of the alogamy. 
KEY WORDS: Agamospermy, Autogamy, Cross-poilination, 
Reproduetion. 
INTRODUÇÃO 
A bacabinha {Oeiwcarpu.s imipora Karsten.), lambem conhecida 
por bacaby é uma espécie de palmeira nativa da Amazônia que vem 
surgindo como alternativa econômica para as regiões tropicais. A 
rclevancia dessa cspecic esta no seu habito de crescimento predominante 
em touceiras c na precocidade de produção de frutos, que inicia por 
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