Vigor-S, a new system for evaluating the physiological potential of maize seeds

Author(s)

Carrara Castan, Danielle Otte ; Gomes-Junior, Francisco Guilhien ; Marcos-Filho, Julio

• Document type: Journal article
• Source: CIENTIA AGRICOL; v. 75, n. 2, p. 6-pg., 2018-03-01.

Abstract

The refinement of vigor tests and the possibility of utilizing computer resources for the effective evaluation of the seed physiological potential have attracted considerable interest from research and seed technologists. The aim of this study was to evaluate the physiological potential of maize seeds using the newly-created Automated Analysis of Seed Vigor System (Vigor-S) compared with other recommended seed vigor tests; two maize hybrids were used, each represented by seven seed lots. Germination and vigor (cold test, saturated salt accelerated aging, and field seedling emergence) evaluations were conducted. For the evaluation of seed vigor with the use of seedling image analysis resources, two systems were compared: the Seed Vigor Imaging System (SVIS (R)), developed by Ohio State University, USA and the Vigor-S, resulting from collaboration between USP/ESALQ and EMBRAPA (Embrapa Instrumentation). Using these two systems, three day old seedlings were scanned and the images were analyzed. Similar results for the vigor index, uniformity of development, and seedling length were obtained. The computerized image analysis of seedlings using Vigor-S has advantages with respect to accuracy, speed, and the possibility of automatic application to a worksheet. It is a consistent alternative for the evaluation of maize seed vigor, and produces information compatible with that obtained by the accelerated aging test and SVIS (R). (AU)

• FAPESP's process: 13/11132-5 - Procedures for automated seedling image analysis for vigor evaluation of maize seeds in comparison with other traditional tests
• Grantee: Danielle Otte Carrara Castan
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 06/57900-0 - Seed imaging analysis in seed technology research
• Grantee: Julio Marcos Filho
• Support Opportunities: Research Projects - Thematic Grants