R. Bras. Zootec.01/Apr/2000;29(2):387-91.

Procedure for Dormancy Breakage in Leucaena leucocephala (Lam.) de Wit

Margareth Maria Teles, Arnaud Azevêdo Alves, José Crisóstomo Gomes de Oliveira, Antonio Marcos Esmeraldo Bezerra

DOI: 10.1590/S1516-35982000000200010

Leucaena leucocephala seeds were allotted to chemical and mechanical scarification and hot water treatment, to overcome the seed-coat dormancy and to evaluate seedling development, according to a complete randomized design. There was decrease in germination for the control (32.7%) and an increase when seeds were immersed in water with 80ºC during 5 and 15 minutes, and concentrate H2SO4 during 10, 15 and 20 minutes. The emergency rate index was better in the treatment with water 80ºC during 5 minutes and concentrate H2SO4 during 20 min. The used treatments to overcome the seed-coat dormancy did not affect the resultant seedling developments.

Procedure for Dormancy Breakage in Leucaena leucocephala (Lam.) de Wit

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