Seed metrics and influence of temperatures and pre-germination treatments on germination of Libidibia ferrea seeds

被引:0
|
作者
Bandeira, Arlete da Silva [1 ]
dos Santos, Debora Leonardo [1 ]
Aguiar Amaral, Maria Caroline [2 ]
de Castro Filho, Manoel Nelson [3 ]
Nascimento Penha, Caroline Boaventura [4 ]
Andrade Guge, Romana Mascarenhas [1 ]
机构
[1] Univ Estadual Sudoeste Bahia, Vitoria Da Conquista, BA, Brazil
[2] Univ Fed Sul Bahia, Itabuna, BA, Brazil
[3] Univ Fed Vicosa, Vicosa, MG, Brazil
[4] Univ Estadual Santa Cruz, Ilheus, BA, Brazil
来源
NATIVA | 2021年 / 9卷 / 03期
关键词
dormancy; scarification; seed dimensions; DORMANCY;
D O I
10.31413/nativa.v9i3.11751
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
The objective of this study was to evaluate seed metrics, optimum temperature for germination and efficiency of five pre-germination treatments for overcoming dormancy of L. ferrea seeds. Seeds were subjected to constant temperatures of 15, 20, 25, 30 and 35 degrees C and to the following pre-germination treatments: nicking with pincers; immersion in water for 24 hours at room temperature; scarification with sandpaper; immersion in caustic soda for 60 minutes; and control (untreated seeds). Germination rate was assessed by germination percentage and germination speed index. The biometric characteristics of the evaluated seeds were: longitudinal length, width and thickness, using a digital caliper with a precision of 0.05 mm. A completely randomized design was used with four replicates and means were compared by Tukey test at 5% probability. The best germination performance was obtained in the 15-30 degrees C temperature range and by using chemical scarification with immersion in caustic soda, and mechanical scarification by nicking with pincers and by rubbing on sandpaper.
引用
收藏
页码:337 / 343
页数:7
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