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Seed germination and initial growth of Campomanesia adamantium Camb seedlings: effects of washing, temperature and biostimulant

The objective of this study was to evaluate thegermination potential of Campomanesia adamantium seeds and initial seedling growth. To evaluate the germination, two tests of seed processing were carried out. In the first test the following treatments were accomplished: 1)seeds extraction, washing in running water and drying at ambient temperature for 3 days; 2) washing in running water and sowing soon after and 3) seed extraction two days after the harvest, washing and immersion in water for 24 hours. In the second tests, the treatments were: 1) washing and drying at ambient temperature for nine days; 2) seed extraction from the fruits stored at ambient temperature for nine days, washing in running water and sowing soon after and 3) seed extraction from the fruits stored for eight days, washing and immersion in water for 24 hours. The seedlings received 2 applications of bio stimulant (0.2ml/ plant) 80 and 90 days after sowing; gibberellic acid 50, 100 and 150 mg L-1 and the plants without any treatment served as the control. The seed germination in three days after fruit extraction was high and did not have significant interaction in function of processing and incubation temperature. When kept in the fruit, the seeds lose their physiological quality. Considering the slow growth of guavira plants, hormonal treatment is suggested with application of bioestimulants as an efficient practice in the seedling production of this species.

guavira; cerrado; native fruit


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