用于保护和恢复的巨型甘蔗(Arundinaria gigantea)的繁殖、生理和生物量

Q4 Agricultural and Biological Sciences Journal of Bamboo and Rattan Pub Date : 2024-01-23 DOI:10.55899/09734449/jbr022103
Sharma S, Wait A. D.
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引用次数: 0

摘要

Arundinaria gigantea 是美国 22 个州的原生物种。该物种及其生态系统被认为处于极度濒危状态,其分布范围已缩小至原来的 2%。我们的研究目标是:1)研究用于恢复的温室繁殖方法;2)研究密苏里州西南部公共土地上仅有的一处斑竹、温室繁殖的斑竹和田间种植的斑竹的生理学;3)开发一个异速方程来估算斑竹的生物量。我们使用产生的新芽数量作为繁殖成功与否的衡量标准。新芽的数量取决于根茎的长度、浇水方式以及是单独使用根茎还是使用现有的茎秆进行繁殖。我们记录到,在 8 x 15.6 英寸的花盆中,用混合土壤/珍珠岩培养基在第二节间切取茎秆,并定期浇水,每个根茎的繁殖成功率都是 100%。2022 年 10 月,叶片叶绿素值从阳面叶片的 329 微摩尔/平方米到阴面叶片的 354 微摩尔/平方米不等。在 2022 年夏季轻度干旱期间,叶片的水势保持在-1.8 兆帕,光合速率高达 12 微摩尔 CO2/平方米/秒。根据树杆直径和高度建立了生物量模型。我们估算了 12,359.508 千克生物量,相当于密苏里州西南部明西保护区 0.17 公顷斑竹储存的 5.8 公吨碳。我们的研究为了解甘蔗和斑竹在现有斑竹生态系统功能中的作用以及可恢复甘蔗的栖息地提供了基准数据。
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Propagation, physiology, and biomass of Giant Cane (Arundinaria gigantea) for conservation and restoration
Arundinaria gigantea is a native species to 22 states in the U.S. The species and its ecosystem are considered critically endangered, and the species has been reduced to 2% of its original extent. Our research goals were to; 1) examine methods for greenhouse propagation for restoration; 2) examine the physiology of cane at one of the only canebrakes on public land in SW MO, greenhouse propagated cane, and field planted cane; and 3) develop an allometric equation to estimate biomass of the canebrake. We used the number of shoots produced as a metric for propagation success. The number of new shoots depended on rhizome length, watering regime, and whether propagation was attempted with the rhizome alone or with an existing culm. We recorded 100% propagation success from every rhizome with culm cut at 2nd internode with regular watering on 8 x 15.6-inch pots having soil-mix/perlite media. Leaf chlorophyll values ranged from 329 umol/m2 in sun leaves to 354 umol/m2 in shade leaves in October 2022. During a mild drought summer 2022, leaves-maintained water potential of -1.8 MPa with photosynthetic rates as high as 12 umol CO2/m2/s. Biomass models based on pole diameter and height were established. We estimated 12,359.508 kg of biomass which is equivalent to 5.8 metric tons of carbon stored by a 0.17 ha canebrake at Mincy Conservation Area in SW MO. Our research provides baseline data for understanding the role of cane and canebrakes in ecosystem functioning in existing canebrakes, and habitats where cane could be restored.
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来源期刊
Journal of Bamboo and Rattan
Journal of Bamboo and Rattan Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
0.40
自引率
0.00%
发文量
7
期刊介绍: The Journal of Bamboo and Rattan is a peer-reviewed scientific journal and provides a forum for scientific articles and reviews on all aspects of fast growing, multi-purpose pliable species. The scope of the journal encompasses income security, craft industry, small to medium size enterprises, industrial fibre and fuel. Articles related to natural distribution and conservation of species, genetics and biotechnology, harvesting and production systems, and environmental applications are also included, as well as papers on marketing and policy restraints in relation to bamboo, rattan and related species.
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