Paper Details

Post-germination  changes  in  hormones,  enzymatic  activities and  biochemical compounds  of different domesticated  almond varieties in response to stratification

Hossein Mohammadi, Ali Imani, Ali Ebadi

DOI: https://dx.doi.org/10.12692/ijb/4.10.298-308

Int. J. Biosci. 4(10), 298-308. May, 2014. (PDF)

Abstract:

Little biochemical information is available regarding the responses of domesticated almond varieties to stratification during the stages of seed germination. Therefore, this study carried out between seeds of Marcona, Rabie, Supernova, Perlis, D99, K-66 domesticated almond varieties to evaluate their hormonal [abscisic acid (ABA) and gibberellic acid (GA3)], enzymatic activities (amylase and peroxidase) and biochemical compounds (glucose, fructose, protein and proline) changes following stratification at 7 ◦C for 8 weeks. The results showed that after stratification and following germination ABA concentration significantly decreased, whereas GA3 concentration increased. Stratification significantly affected amylase and peroxidase activities, sugars content (glucose and fructose) and proline content as the highest amounts were obtained after germination. Moreover, change in protein content depends on varieties as protein content significantly increased in Rabie, Supernova, D-99 and K-66 varieties, while Marcona and Perlis showed significantly decreasing in protein content. Overall, Rabie, Supernova and K-66 varieties showed the highest hormones, enzymatic activities biochemical compounds content after stratification and following germination.