African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6849

Full Length Research Paper

Treatments for breaking dormancy of the crotalaria seeds (Crotalaria ochroleuca)

Tiago Neves Pereira Valente1*, Erico da Silva Lima2, Luana Almeida Souza1 and André Dias1
1Instituto Federal Goiano, Posse Campus/GO, Brazil. 2Master’s Degree Studies Program in Environmental Health at FMU, São Paulo/SP, Brazil.
Email: [email protected]

  •  Received: 31 August 2016
  •  Accepted: 09 November 2016
  •  Published: 24 November 2016


The objective of the study was to evaluate the influence of methods in breaking dormancy in the seeds of tropical forage legume Crotalaria ochroleuca. The seed treatments were: (T1) water at 100ºC/10 min; (T2) immersed in water for 24 h at ambient temperature, after immersion in water at 100°C/1 min; (T3) acetone (10 min); (T4) ethyl alcohol (10 min); and (T5) intact seeds = control treatment. Data were analyzed using a completely randomized design with two replications, and was adopted for the Tukey test at 5% significance level. Seeds immersed in water for 24 h at ambient temperature before cultivation is enough to ensure germination. The treatments T1, T2 and T5 had the highest speed germination of seeds GSI, which differed (P<0.05) from T3 and T4. The T3 treatment was the only one with difference (P<0.05) in germination which was 15 days after sowing (Germ15). The T1 and T2 treatment had the highest amount of seed germination (P<0.05). The acetone affected the embryo in the tegument negatively.


Key words: Acetone, germination, seed physiology.