Substratos E Temperaturas Para Teste De Germinação Em Sementes De Myrtaceae

Abstract

RESUMOAs espécies brasileiras de Myrtaceae compreendem diversas plantas arbóreas e arbustivas que podem ser utilizadas na produção de frutos para consumo in natura ou para industrialização. Informações sobre avaliação da qualidade de sementes dessas espécies não estão bem definidas, principalmente as relacionadas à adequação do teste de germinação. Objetivou-se testar substratos e temperaturas para realização do teste de germinação em sementes ABSTRACTThe Brazilian species of the Myrtaceae comprises several arborescent and shrubby plants that are used to produce fruit for fresh consumption or industrialization. Information about the seed quality evaluations for these species are scarce in the literature, mainly related to the adequacy of the germination tests. This study tests different substrates and temperatures to test the germination of Acca sellowiana (O. Berg) Burret. (goiaba-serrana), Campomanesia xanthocarpa O. Berg (guabiroba), Eugenia involucrata DC. (cereja-domato) and Eugenia pyriformis Camb. (uvaia) seeds. Two seed lots were collected at different locations, one for each species, according to the requirements of the selection matrices. Sand and germitest paper towel rolls substrates were used, moistened with distilled water, and submitted to temperatures of 15 °C, 25 °C, 30 °C, 35 °C and 20-30 °C under constant light, on P.D.A. germinators. The experimental delineation was entirely randomized with four repetitions of 25 seeds/treatment/lot/specie, and treatment means were

Germination temperatures and treatments to overcome dormancy in Belamcanda chinensis seeds1

“…Values followed by letters between parentheses show the originals means. Dousseau et al 2011, Baskin & Baskin 2014, Zucareli et al 2015, Gomes et al 2016. The presence of light (8 h) in the alternating temperature condition was likely not responsible for the onset of the germination process, since the substrate used (paper roll) is not recommended for light-sensitive seeds (Brasil 2009).…”

Temperatures and substrates for germination and vigor of <i>Erythroxylum pauferrense</i> Plowman seeds

“…Table 1 shows the occurrence of significant interactions between temperature and substrate (p < 0.05), indicating that there is at least one combination of these two factors that optimizes germination percentage. Bassaco et al (2014), Gomes, Oliveira, Ferreira, and Batista (2016) and Silva et al (2017) also reported a significant interaction between temperature and substrate for seed germination of other forest species of the Atlantic Forest.…”

Sanitary and physiological quality of seeds of Acca sellowiana (O. Berg) Burret

“…The Myrtaceae family has several native fruit species widely distributed in Brazil (GOMES et al, 2016). An example is the species Acca sellowiana (O. Berg) Burret, popularly known as "goiaba-serrana" native to southern Brazil.…”