Efeito da profundidade na germinação das sementes de dialium schlechteri, Sclerocarya birrea e Strychnos spinosa no viveiro

Abstract

This work is the result of a study whose main objective was to evaluate the effect of depth on the germination of seeds of three native fruit trees in the nursery. For this purpose, a completely randomized block design was used in the nursery of the IIAM Forestry Research Center in the Marracuene district, in December 2010. The treatments used were depths of 2.0; 4.0; 6.0 and 8.0 cm. From the test, seed germination was evaluated to determine the germination percentage, germination speed and energy. From the results obtained, it was found that, for all treatments, they differed significantly from the depths of 2.0 and 4.0 cm, as to the percentage, speed and energy of germination with the exception of Dialium schlechteri in which the depth 2.0 cm is that differs from the rest. The ideal depth for the species under study is 2.0 cm for the seeds of Dialium schlechteri and Strychnos spinosa, which have a higher germination percentage and 4.0 cm for the Sclerocarya birrea, the same is true for the rest for the analyzed parameters ( speed and germination energy). (TRADUÇÃO NOSSA)