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EN
This study examined the effects of storage temperature and pre-chilling on the germination of the seeds of Solanum macrocarpon – which according to literature has a seed viability of 63.33%. In our study, the seeds were sown in dry Petri dishes and placed in the refrigerator set at 4 °C for 1, 3, 5, 7 and 10 days. Another set of seeds was placed in incubators set at 25, 35 and 45 °C for 40 days before the germination experiment was carried out on a laboratory workbench. Results from the study revealed that while storage temperature had a significant effect on that the germination of seeds of this plant, pre-chilling of seeds and incubator treatments generally reduced seed germination. Thus seed germination in this plant is temperature dependent.
EN
The effect of cryopreservation on seed germination and seed vigour, and seeds with different moisture regimes have been studied to find out if they are a good candidate for LN by storing seeds in liquid nitrogen (196 °C) for 24 and 72 hours from three rice seed cultivars, namely Lisem, Manen, and Mapok. For all the three cultivars studied, cryopreservation did not decrease germination percentages or seed vigour and it also appears that seed moisture content ranging from 10% to 18% is not a determining factor for the survival of seeds up to 72 hour storage of the seed in LN.
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