An examination of seed germination and seedling growth of Zostera marina for planting-time selection in Rongcheng Bay, Shandong Peninsula, China

Deng, Xiaofang; Zhang, Yanhao; Liu, Jie; Yu, Bing; Li, Hongchen; Zhang, Peidong

doi:10.1016/j.marpolbul.2022.113740

Cited by 2 publications

(1 citation statement)

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“…Seedling‐based approaches for seagrass restoration can help preserve the genetic diversity in restored populations (Orth et al 1994; Balestri et al 2021). Some seagrass species exhibit high seed‐production rates, indicating their potential for donor plant cultivation (Zarranz et al 2010; Yang et al 2016; Deng et al 2022). However, most seagrass species exhibit a distinct seed dormancy period, ranging from several weeks to several years (Mcmillan 1981; Kuo et al 1990), resulting in an extended duration of seed germination and seedling establishment, which incurs significant time and economic costs (Orth & Moore 1983; Busch et al 2010; Yang et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Propagating eelgrass (Zostera marina) from cuttings in land–sea combination systems: a novel method to improve the sustainability of seagrass restoration

Zhang,

Zhao,

et al. 2024

Restoration Ecology

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The combination of a land‐based system and natural habitat can propagate donor plants from cuttings for use in seagrass restoration projects; however, the appropriate period for land‐based cultivation is unclear. Eelgrass (Zostera marina) cuttings were cultivated under different combinations of land‐based (0, 3, 6, 9, and 12 weeks) and natural habitat cultivation for 12 weeks. We measured survivorship, growth, productivity, leaf pigmentation, and carbohydrate concentration in eelgrass. Return on investment (defined as the number of ramets of Z. marina returned through input cultivation costs in the seagrass cultivation process) analysis suggested that the optimal period of land‐based cultivation for the propagation of Z. marina is 3.1–3.8 weeks. The ramet frequency of Z. marina exposed to a combination of land‐based cultivation (3 weeks) and natural habitat cultivation (9 weeks) was 1.4 times higher than that of plants cultivated in natural habitats for 12 weeks. The promotional effect of the combination of land‐based and natural habitat cultivation on Z. marina mainly depended on the increase in chlorophyll content and the accumulation and synthesis of nonstructural carbohydrates. The soluble sugar content of Z. marina leaves exposed to a combination of land‐based cultivation (3 weeks) and natural habitat cultivation (9 weeks) was 1.5 times higher than that of plants cultivated in natural habitats for 12 weeks. These results indicated that implementation of a controlled plant cultivation system and process to acquire abundant donor plants. This can help provide valuable data for the development of efficient artificial propagation technologies for Z. marina.

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