CIOP   05384
CENTRO DE INVESTIGACIONES OPTICAS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
ANALYSIS OF SEED GERMINATION PROCESS BY SPECKLE TECHNIQUES
Autor/es:
E GRUMEL; F OTALORA LUNA; M TRIVI; A MAVILIO, M FERNANDEZ,M TRIVI, H RABAL, R ARIZAGA; I INCIARTE; N CAP
Lugar:
Pucón
Reunión:
Congreso; . ?IX Reunión Iberoamericana de Óptica y XII Reunión Iberoamericana de Óptica, Láseres y Aplicaciones (RIAO/OPTILAS),; 2016
Institución organizadora:
RIAO
Resumen:
Speckle patterns are interference phenomena that occur when a laserbeam illuminates a rough surface. If the surface experiments any deformation ormovement, this pattern fluctuates in time and is called dynamic speckle. Thisspeckle fluctuation is related with the activity of the sample. Then, severalapplications were developed for the non intrusive and non destructive analysisof some biological and industrial processes and many other examples. Inparticular, several agricultural applications have been developed tocharacterize seeds, fungi, fruit damage, etc. Recently, we proposed using the dynamic laser speckle (DLS)technique to analyze several tropical seeds and preliminary results werepresented. In this paper, we focus our work on the germination processes of thePhysalis peruviana L. (capegooseberry or uchuva). Uchuva has excellent nutritional properties as a sourceof provitamin A and vitamin C and healing properties that are used in thechemical and pharmaceutical industries. We hydrated a set of seeds to facilitate germination, and followedsuch sprouting process by using DLS. Another set, where germination was notinduced, was followed as a control for comparison purposes. Results indicatedthat cell grow can be detected by DLS, as the growing tissue associated withthe seed embryo shows more speckle activity. This work continuing to refine theresearch methodology and comparative studies with other techniques arecurrently developed.