Assessment of Parica

This work aimed to study the behavior of the species Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby (In the Portuguese language 'Parica') at different ages and cultivation systems in Aurora do Para (Para state, Brazil). The experiment was carried out in the experimental territory of 'Tramontina Belem S.A. company' (2[degrees]10'00"s; 47[degrees]32'00"w), using a thoroughly random statistical outline with subdivided plots. There were selected six plantation forests of Parica: 1-agroforestry system of Parica and Curaua (Ananas comosus var. erectifolius) (SAFpc); 2-monoespecific plantation of Parica (MONp); 3-agroforestry system with Parica, freijo (Cordia goeldiana) and curaua (SAFpfc); 4-consortium of Parica and Freijo (CONpf); 5-agroforestry system with Parica, Freijo, Mogno and Curaua (SAFpfmc); 6-Consortium of Parica, Magno and Freijo (CONpmf). The plot size was 18m x 24m with four repetitions per treatment, amounting for 28 plots and 10.368 [m.sup.2] of experimental area. The numbers used as reference to evaluate the growth of Parica were height (H) and breast height diameter (DAP). Based on those values the average increments per year were calculated in DAP (IMAdap), H (IMAalt) and volume (V); The data was submitted a Variance Analysis and the average compared through Student Newman Keuls test (SNK), at 95% probability level. The results showed that Parica and Curaua, if associated, presented statistically higher numbers in height and diameter at breast height, increment and volume, if compared to same age treatments in the absence of the agricultural species. Keywords: growth; volume; mono-specific plantation, agroforestry system. O trabalho teve o objetivo de avaliar o comportamento da especie Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby (parica) de diferentes idades e sistemas de cultivo no municipio de Aurora do Para (PA--Brasil). O experimento foi conduzido no campo experimental Tramontina Belem S.A (2[degrees]10'00"S; 47[degrees]32'00'W), seguindo o delineamento estatistico inteiramente ao acaso com parcelas subdivididas. Foram selecionadas seis plantacoes florestais de parica: 1-Sistema agroflorestal de parica + curaua (Ananas comosus var. erectifolius) (SAFpc); 2-monocultivo de parica (MONp); 3 Sistema agroflorestal parica, freijo (Cordia goeldiana Huber) e curaua (SAFpfc); 4-Consorcio parica e freijo (CONpf); 5-Sistema agroflorestal parica, mogno (Switenia macrophylla King), freijo e curaua (SAFpmfc); e 6-Cons