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<p>Utilizing local seed sources is often recommended in restoration due to their adaptability to environmental conditions. However, at spatial scales, the degree of interpopulation variability in terms of germination and seedling performance is usually not included in comparisons, especially in the Arabian desert. Therefore, in this study, we examined the effect of seed source on germination and seedling growth of <i>Panicum turgidum</i> and <i>Pennisetum divisum</i> (<i>Poaceae</i>) to identify the best seed sources that are superior in terms of important characteristics (i.e., germination, seedling survival, and growth performance). These characteristics have advantage for restoration/rehabilitation as well as for mass production of the species. This study found that both species require after-ripening to overcome seed dormancy. However, <i>P. turgidum</i> exhibited deeper dormancy, with lower germination rates and delayed germination. A maternal effect influenced germination behavior in both species, as the seed source affected germination and emergence performance. In contrast, seed source had minimal impact on seedling growth and water content.</p>

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Maternal effects upon early stages of Panicum turgidum and Pennisetum divisum (Arabian Desert Grasses): implications for improving desert restoration efficiency

  • 期刊论文

  • 发表日期：

    2025年9月2日

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  • Arvind Bhatt,
  • Paulo Roberto de Moura Souza Filho,
  • Harsh Kumar Chauhan

摘要

Utilizing local seed sources is often recommended in restoration due to their adaptability to environmental conditions. However, at spatial scales, the degree of interpopulation variability in terms of germination and seedling performance is usually not included in comparisons, especially in the Arabian desert. Therefore, in this study, we examined the effect of seed source on germination and seedling growth of Panicum turgidum and Pennisetum divisum (Poaceae) to identify the best seed sources that are superior in terms of important characteristics (i.e., germination, seedling survival, and growth performance). These characteristics have advantage for restoration/rehabilitation as well as for mass production of the species. This study found that both species require after-ripening to overcome seed dormancy. However, P. turgidum exhibited deeper dormancy, with lower germination rates and delayed germination. A maternal effect influenced germination behavior in both species, as the seed source affected germination and emergence performance. In contrast, seed source had minimal impact on seedling growth and water content.