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<p>Studies on the germination of native species are crucial for understanding the physiological requirements of seeds. Thus, the aim was to evaluate the germination of <i>Chloroleucon dumosum</i> seeds under different light conditions (absence and presence) and different temperatures (20 ºC, 20–30 ºC, and 30 ºC), with 4 replicates of 25 seeds each. Tests were conducted in germination chambers with a 12-hour photoperiod. After 12 days, the following variables were analyzed: height, root length, hypocotyl diameter, fresh and dry weight of the root and shoot. Finally, biomass allocations and the root/shoot ratio were calculated. Based on these data, biomass allocations and the root/shoot ratio were calculated, and the data were subjected to analysis of variance, and means were compared by Tukey’s test. It was identified that the seeds are classified as neutral photoblastic, as they germinated in both the presence and absence of light, expressing their maximum physiological potential at an alternating temperature of 20–30 ºC.</p>

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Germination of Chloroleucon dumosum (Benth) seeds under different light and temperature regimes

  • 期刊论文

  • 发表日期：

    2025年7月23日

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  • Carlos Luiz da Silva,
  • Natasha Pereira de Oliveira,
  • Letícia de Lima Barbosa de França Romeiro,
  • Marcus Gabriel de Carvalho Ramos,
  • Luan Danilo Ferreira de Andrade Melo,
  • Gabriel Alves de Lima,
  • Paulo César da Silva Santos,
  • Moema Barbosa de Sousa,
  • Erika Rayra Lima Nonato,
  • Hugo Henrique Costa do Nascimento

摘要

Studies on the germination of native species are crucial for understanding the physiological requirements of seeds. Thus, the aim was to evaluate the germination of Chloroleucon dumosum seeds under different light conditions (absence and presence) and different temperatures (20 ºC, 20–30 ºC, and 30 ºC), with 4 replicates of 25 seeds each. Tests were conducted in germination chambers with a 12-hour photoperiod. After 12 days, the following variables were analyzed: height, root length, hypocotyl diameter, fresh and dry weight of the root and shoot. Finally, biomass allocations and the root/shoot ratio were calculated. Based on these data, biomass allocations and the root/shoot ratio were calculated, and the data were subjected to analysis of variance, and means were compared by Tukey’s test. It was identified that the seeds are classified as neutral photoblastic, as they germinated in both the presence and absence of light, expressing their maximum physiological potential at an alternating temperature of 20–30 ºC.