Physical quality of seeds of Moquiniastrum polymorphum/Qualidade fisica de sementes de Moquiniastrum polymorphum

• Published in: Brazilian journal of biology Vol. 79; no. 1; pp. 63 - 69
• Main Authors: Faria, J.C.T, Melo, L.A, Assumpcao, C.R.M, Brondani, G.E, Breier, T.B, Faria, J.M.R
• Format: Journal Article
• Language: English
• Published: Association of the Brazilian Journal of Biology 01.02.2019
• Subjects: Brasil
• ISSN: 1519-6984; 1678-4375
• DOI: 10.1590/1519-6984.175407

This study aimed to analyze the physical properties of the seeds of Moquiniastrum polymorphum when processed by mini-SAS, X-ray and seed blower systems. The seeds were purchased from Seeds Caicara, located in Penapolis-SP. After purchase, the seed lot was characterized by standard tests. In the X-ray test the seeds were classified according to their internal morphology as filled, unfilled or malformed. The seed blower was set at six opening settings, resulting in light and heavy fractions. The evaluations were performed by weighing the seeds that remained in the blower (heavy fraction) and by the amount of filled seeds indicated by the X-ray test. The germination tests were composed of four replicates of 50 seeds. The mini-SAS was used for external evaluation. It was concluded that the combined use of the seed blower and the X-ray test was efficient for the evaluation and determination of the physical quality of the seeds of M. polymorphum. The seed blower at opening settings 5 resulted in the best lot quality. The external parameters were not able to qualitatively evaluate the seeds of M. polymorphum.