Scholarlink

<p>The present study aimed to evaluate the germination and germination speed index of <i>Schinus terebinthifolius</i> seeds obtained from fruits with different colors, considering the influence of different progenies. The study was conducted at the Federal Rural University of Pernambuco, in a completely randomized design arranged as a factorial scheme between progenies and fruit color, with four replicates of 25 seeds per treatment. Seeds extracted from green, red, reddish-brown, and brown fruits collected from 5 progenies were used. The germination test was carried out in gerbox boxes on autoclaved and moistened germitest paper, under a constant temperature of 25&#xa0;°C and a 12&#xa0;h photoperiod, and germination percentage and GSI were evaluated. Data were subjected to analysis of variance, and means were compared by Tukey’s test at 5% probability. The first germination count did not show significant effects of progeny, fruit color, or their interaction, indicating a relatively uniform initial germination response. However, the final germination and GSI responses revealed a consistent physiological pattern: green and brown fruits generally showed similar and lower performance, whereas red and reddish-brown fruits concentrated the most favorable results. Red fruits showed the best germination performance in several progenies, especially in progenies 1, 3, 4, and 5, while reddish-brown fruits also showed high performance, particularly in progeny 5. For GSI, red and reddish-brown fruits again stoodout, with progeny 5 showing the clearest superiority for these color classes. The relative water content decreased as fruit coloration advanced, with green fruits showing the highest moisture values and reddish-brown and brown fruits the lowest values. This dehydration gradient supports the interpretation that green fruits are associated with physiological seed immaturity, whereas brown fruits, despite their lower water content, may represent a more advanced stage of post-maturation deterioration. It is concluded that fruit color is a practical and reliable indicator of the probability of maximum physiological quality in <i>S. terebinthifolius</i> seeds, with red fruits being the most promising for collection, followed by reddish-brown ones.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Seed germination of Schinus terebinthifolius as a function of fruit coloration

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年8月2日

查看全文
  • Carlos Luiz da Silva,
  • Moema Barbosa de Sousa,
  • Erika Rayra Lima Nonato,
  • Gabriel Alves de Lima,
  • Paulo César da Silva Santos,
  • Sara Sebastiana Nogueira,
  • Ricardo Gallo

摘要

The present study aimed to evaluate the germination and germination speed index of Schinus terebinthifolius seeds obtained from fruits with different colors, considering the influence of different progenies. The study was conducted at the Federal Rural University of Pernambuco, in a completely randomized design arranged as a factorial scheme between progenies and fruit color, with four replicates of 25 seeds per treatment. Seeds extracted from green, red, reddish-brown, and brown fruits collected from 5 progenies were used. The germination test was carried out in gerbox boxes on autoclaved and moistened germitest paper, under a constant temperature of 25 °C and a 12 h photoperiod, and germination percentage and GSI were evaluated. Data were subjected to analysis of variance, and means were compared by Tukey’s test at 5% probability. The first germination count did not show significant effects of progeny, fruit color, or their interaction, indicating a relatively uniform initial germination response. However, the final germination and GSI responses revealed a consistent physiological pattern: green and brown fruits generally showed similar and lower performance, whereas red and reddish-brown fruits concentrated the most favorable results. Red fruits showed the best germination performance in several progenies, especially in progenies 1, 3, 4, and 5, while reddish-brown fruits also showed high performance, particularly in progeny 5. For GSI, red and reddish-brown fruits again stoodout, with progeny 5 showing the clearest superiority for these color classes. The relative water content decreased as fruit coloration advanced, with green fruits showing the highest moisture values and reddish-brown and brown fruits the lowest values. This dehydration gradient supports the interpretation that green fruits are associated with physiological seed immaturity, whereas brown fruits, despite their lower water content, may represent a more advanced stage of post-maturation deterioration. It is concluded that fruit color is a practical and reliable indicator of the probability of maximum physiological quality in S. terebinthifolius seeds, with red fruits being the most promising for collection, followed by reddish-brown ones.