Improvement tests on the germination in Lippia multiflora : influence of some factors related to soil on germination and seedling development

Studies on the germination and growth of seedlings of Lippia multiflora were conducted on several types of substrates. They consisted of germination tests and monitoring of seedling growth. The results showed that the best germination rates were recorded with the batch of seeds germinated on substrates made of a mixture of soil and manure (S2 = 82.67% and S3 = 65.33%). After 60 days of culture, the most significant heights of the plants of Lippia multiflora were recorded in culture media S2 (7.48 cm) and S3 (5.46 cm), with an average number of leaves 7; 12 and 6, respectively for the circles S1, S2 and S3. The root elongation is more important in substrates S2 (6.3 cm) and S3 (4.74 cm). The Pearson correlation tests carried out indicate that the contribution of organic matter in the substrates improves seedling development in Lippia multiflora. -- Lippia multiflora ; germination ; substrates