用小种子本地物种包覆水稻以重新引入农业生态系统:Lindernia procumbens 案例研究

IF 2.8 3区 环境科学与生态学 Q2 ECOLOGY Restoration Ecology Pub Date : 2024-08-14 DOI:10.1111/rec.14257
Anna Corli, Andrea Mondoni, Francesco Porro, Graziano Rossi, Valentina Vaglia, Micol Orengo, Simone Pedrini, Simone Orsenigo
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引用次数: 0

摘要

种子包衣通常应用于农业种子行业,以减轻生物和环境障碍,提高种子萌发、出苗和成活率。最近,这种种子增殖技术已被测试并应用于本土物种种子的生态恢复和保护。这项工作展示了种子包衣的一种新应用,用于重新引入具有粉尘状种子的物种,这种种子使得直接播种和栽培变得不可行。在这里,我们将种子包衣用于水稻田中受威胁的一年生物种 Lindernia procumbens (Krocker) Philcox(林下植物科)。在水稻种子的表面包覆仙客来种子,作为载体在水稻播种时传播该物种。我们首先测试了两种选定浓度的粘合剂对白千层发芽的影响,然后研究了播种深度(即表层-光照和埋藏-黑暗)对白千层发芽的影响。水稻包衣是一种可行且有价值的工具,可用于保存种子细小的濒危物种,因为粘合剂不会限制原百日草的萌发。与埋藏条件相比,光照增加了草履虫的出苗率。虽然在水田试验中,L. procumbens 的萌发受到了限制,但我们促进了该物种土壤种子库的形成。因此,这并不妨碍在农业生态系统中重新引入带有微小种子的稀有物种。这项开创性的技术可以推广到生态恢复中,因为生态恢复急需新的种子方法和种子包衣技术,以提高幼苗的成活率和恢复效果。
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Rice encrusting with small‐seeded native species for reintroduction in agroecosystems: a case study in Lindernia procumbens
Seed coating is commonly applied in agricultural seed industry to alleviate biotic and edaphic barriers and improve seed germination, seedling emergence and establishment. Recently, this seed enhancement technology has been tested and applied to seeds of native species for ecological restoration and conservation. This work presents a novel application of seed coating for the reintroduction of species with dust‐like seeds that render direct seeding and cultivation unfeasible. Here we have used seed coating on Lindernia procumbens (Krocker) Philcox (Linderniaceae), a threatened annual species of paddy fields. Lindernia procumbens seeds were encrusted to the surface of rice seeds that acted as carrier to spread the species along rice sowing. We first tested how two selected concentrations of binder affected L. procumbens germination, then we investigated sowing depth (i.e. surface level—light, and buried—darkness) effect. Rice encrusting is a feasible and valuable tool for preserving threatened species with tiny seeds, since binder did not limit L. procumbens germination. Light increased L. procumbens seedlings emergence compared to buried conditions. Although L. procumbens emergence was limited in a paddy field trial, we promoted the formation of a soil seed bank for the species. As such, this should not discourage the possibility to reintroduce rare species with tiny seeds in agroecosystems. This pioneering technique can be extended to ecological restoration, where there is an urgent need for new seed‐based approaches and seed‐coating technologies to improve seedling establishment and restoration efficacy.
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来源期刊
Restoration Ecology
Restoration Ecology 环境科学-生态学
CiteScore
6.50
自引率
15.60%
发文量
226
审稿时长
12-24 weeks
期刊介绍: Restoration Ecology fosters the exchange of ideas among the many disciplines involved with ecological restoration. Addressing global concerns and communicating them to the international research community and restoration practitioners, the journal is at the forefront of a vital new direction in science, ecology, and policy. Original papers describe experimental, observational, and theoretical studies on terrestrial, marine, and freshwater systems, and are considered without taxonomic bias. Contributions span the natural sciences, including ecological and biological aspects, as well as the restoration of soil, air and water when set in an ecological context; and the social sciences, including cultural, philosophical, political, educational, economic and historical aspects. Edited by a distinguished panel, the journal continues to be a major conduit for researchers to publish their findings in the fight to not only halt ecological damage, but also to ultimately reverse it.
期刊最新文献
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