Acessibilidade / Reportar erro

Influence of plant density on the yield per area of the 'mundo novo' coffee

In S. Paulo coffee is commonly grown at variable spacings with about four seedlings per hole. There is at present, a trend to establish new coffee orchards at higher densities in the lines than previously adopted. The data here discussed refer to to a trial set to observe the behaviour of one of the best yielder strains of the 'Mundo Novo' cultivar, LGP 376, when planted with different spacing between holes in the lines and also with different number of seedlings per hole. Four treatments were distributed in a landomissed block design with 6 replications. The tratments chosen were the following; 4.0 x 0,5 m one plant per hole, 4.0 x 1.0 m with two or four seedlings per hole and 4.0 x 2.0 m (four seedlings). The last treatment was taken as representing the usual coffee planting system under our conditions. The analysis of total coffee cherry weight, for a period of four years, indicated no significant differences between treatments. Nevertheless it was noticed that the first two productions were higher in the tratuionts with higher densities in the line. Only the treatments with a single plant per hole had shorter plants than any other. The treatments with two or four seedlings in the holes had a larger diameter than those treatments with a single plant. This reduction in diameter of the coffee tret' would favor the establishment of coffee plantations at closer spacings. The outturn and seed size were of the same magnitude for any treatment considered. The results point out the advantage of establishing part of a coffee orchard at higher densities in order to get good profit due to the higher yields obtained per area in the first harvests. It was suggested that identical observation with other selections of the same or different eultivars should be carried out, in order to have data about the reaction of the selections under different planting lay-outs and also to variable plant densities in the line or in the hole.


Instituto Agronômico de Campinas Avenida Barão de Itapura, 1481, 13020-902, Tel.: +55 19 2137-0653, Fax: +55 19 2137-0666 - Campinas - SP - Brazil
E-mail: bragantia@iac.sp.gov.br