Correlations Between Physical and Physiological Quality Traits in Mutant and Non-Mutant UNPAD Sweet Corn Seeds After 4 Months Storage

摘要

Seed longevity could be described as a measure of seed viability after being stored for a certain period under particular conditions. Viability may vary due to genetic factors. The variations can be evaluated using physical and physiological quality traits such as seed weight, viability, and vigour. The results of such an evaluation are useful for future breeding efforts to enhance existing cultivars and develop new ones. We evaluated the physical and physiological traits of sixteen genetic lines randomly selected according to seed weight variations between mutated and non-mutated populations in UNPAD maize collections. The experimental design in this study was conducted using randomized completely design, with two replications. The data were analysed using analysis of variance and if data was significant then the post-hoc tested used Scott-Knott and Duncan at 5% level. Besides, we calculated the correlation between physical and physiological quality traits of seed. The results showed that the variation was exist in UNPAD maize collections. Furthermore, correlation analysis revealed that the positive and significant correlation between seed weight and synchrony of seed germination after 4 month storage. We suggested that seed weight was important traits for breeding program in maize to select good quality in associated to seed longevity.