Abstract
Aiming to evaluate the effect of degumming methods and natural drying, as well as, the influence of different periods of seeds in quicklime solution on Punica granatum L. germination, were conducted two experiments. At first, the seeds from ripe fruits were subjected to the following sarcotesta extraction: natural fermentation at room temperature, during 72 hours; immersion in quicklime (CaO), during 24 hours; and non-degumming, taken as control. For the second experiment, the extraction method was carried out by the following mixture: seeds, quicklime, and distilled water; differing the immersion period (5, 10, 15, 20, and 25 hours). In both, the experimental design was completely randomized, performing the water content and germination test. The quicklime method is efficient to degrade and to eliminate the sarcotesta on P. granatum seeds, and the drying process provides a better germination. In addition, there is a linear increase on seed physiological quality when upgrades the immersion period in quicklime solution.
Highlights
The pomegranate (Punica granatum L.) is a woody shrubby plant, native from Iran and Himalaya region
The interaction between extraction methods and drying was not significant for the characteristics analyzed at the Table 1, indicating that the factors act independently
The quicklime method highlighted compared to the others, providing better results with 70% of germinated seeds, 4.44 of germination speed index (GSI), and 53% of normal seedlings, representing 75% from the total of germination percentage at 35 days
Summary
The pomegranate (Punica granatum L.) is a woody shrubby plant, native from Iran and Himalaya region. Others treatments as quicklime (CaO), can be used to eliminate the mucilage from fleshy fruits (Silva, 2012) This technique has been investigated by several authors in different species (Martins et al, 2006; Freitas et al, 2011; Osipi et al, 2011; Aguiar et al, 2014; Santos-Moura et al, 2014; Araújo et al, 2015); but, at the same time, its effect on pomegranate seeds still unknown. Vol 9, No 10; 2017 during the storage (Carvalho & Nakagawa, 2012) Under these circumstances, it is required to conduct investigations to clarify the effect of drying process for pomegranate seeds compared to the different methods of sarcotesta extraction, emphasizing to the dormancy caused by the seed coat (Silva, 2013). Aiming to evaluate the effect of three degumming methods, associated or not to the natural drying; as well as the influence of different periods of seeds in quicklime solution on germination of P. granatum, there were conducted two experiments
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