Procedure for dormancy breakage in Leucaena leucocephala (Lam.) de Wit

Revista Brasileira de Zootecnia

Oliveira, José Crisóstomo Gomes de²  Bezerra, Antonio Marcos Esmeraldo²  Teles, Margareth Maria¹  Alves, Arnaud Azevêdo² 

[1] UFRPE;UFPI, Teresina

关键词: dormancy;    germination;    Leucaena leucocephala;    seedling production;    vigor     IntroduçãoA leucena (Leucaena leucocephala (Lam;   

DOI  :  10.1590/S1516-35982000000200010

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

- 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.

【 授权许可】

CC BY-NC