Seed Germination within Genus <i>Rosa</i>: The Complexity of the Process and Influencing Factors
2023
Roxana L. Stoian-Dod | Catalina Dan | Irina M. Morar | Adriana F. Sestras | Alina M. Truta | Gabriela Roman | Radu E. Sestras
Seed germination is a crucial stage in the life cycle of plants, and understanding the factors influencing germination is essential for successful cultivation, plant breeding, and conservation efforts. The genus <i>Rosa</i>, commonly known as roses, encompasses a diverse group of flowering plants renowned for their beauty and fragrance. <i>Rosa</i> germination is influenced by a variety of factors, including seed dormancy, environmental conditions, and seed treatments. Many <i>Rosa</i> species exhibit different types of seed dormancy, such as physical dormancy caused by hard seed coats and physiological dormancy due to internal mechanisms. Overcoming seed dormancy often requires specific treatments, including cold stratification, scarification, or chemical treatments, to promote germination. Environmental factors, including temperature, moisture, light, and substrate, play vital roles in <i>Rosa</i> germination. Temperatures ranging from 15 to 25 °C, moisture, and exposure to light or darkness, depending on the species, constitute suitable conditions for seed germination. Many studies have been conducted to investigate the germination requirements of different <i>Rosa</i> species, thereby expanding our understanding of their propagation and conservation. Additionally, advancements in techniques such as in vitro germination and molecular approaches have further enhanced our understanding of <i>Rosa</i> germination biology.
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