Induction to the latency rupture in seeds of Trema micranthum, (Roem. & Schult.) Blume, an emerging species for the production of amate paper
DOI:
https://doi.org/10.5377/ribcc.v4i7.6314Keywords:
Viability, Germination, Imbibition, Jonote, LatencyAbstract
he percentage of viability in Trema micranthum seeds was evaluated.They were divided into: imbibition tests and tetrazolium test for the identification of viable germinable and viable non-germinable seeds, as well as the evaluation of two germination promoters to inhibit the dormancy present in the seeds. The permeability of the seeds was evaluated in batches of 100 with three replications, the viability was determined by staining tests with tetrazolium at 0.5 and 1% at different times where the percentage of viable and non-viable seeds was obtained. On the other hand, two germination promoters were evaluated (Potassium nitrate (KNO3) and Gibberellic acid (GA3) at three different concentrations (500, 1000 and 2000 mg L-1)) with three repetitions each followed by sowing in the middle. MS. Finally, with the tests carried out, the percentage of viable germinable and viable non-germinable seeds was determined. The seeds used in the permeability evaluation showed that after 10 hours they reached a maximum water absorption, the determination of seed staining had a better result with 1.0% tetrazolium. The evaluation of the two promoters resulted in approximately 33% germination with GA3 [500 mgL-1] and 18% with KNO3 [500 mgL-1]. Finally, of the two tests that were carried out, 50% viable seeds resulted, 28% viable non-germinable seeds, 22% germinable and these results were obtained through staining tests and in the evaluation of the two germination promoters. .
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