Degradation of reserves of crambe seed (Crambe abyssinica) during germination

Abstract

The aim of this study was to determine how lipids, total soluble sugars and starch are degraded during the germination process of crambe seeds (FMS Brilhante Cultivar). The experiment consisted of collecting seeds during every day of the germination test (0, 1, 2, 3, 4, 5, 6 e 7 days) during which were also held the germination counts. After collection, the proportion of seeds and / or seedlings was designed for the determination of water content, and the other part was separated to perform biochemical analysis. The study adopted a completely randomized design with four replications and the means were compared by regression analysis. Crambe seed reserves showed degradation since the metabolic activation with increased germination in that lipid, soluble sugars, and starch are degraded.

Physical and physiological changes of Crambe abyssinica Hochst seed during maturation

“…Seed development occurs through distinct phases, beginning with cellular division and accelerated mass gain, consisting mostly of water, and over time, the water content decreases with the synthesis and accumulation of reserve substances (Bewley & Black, 1994;Marcos Filho, 2015). The reserve substances alocated in the crambe seed endosperm are lipids, proteins and soluble sugars (Oliveira et al, 2016). Concomitant with the reduction in seed water content, a reduction in total mass was also observed, just as the largest seed-water content was previously accompanied by greater seed total mass ( Figures 2C and 2D).…”