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首页> 外文期刊>Acta Horticulturae >Effect of substrate type and irrigation frequency on growth of Pallenis maritima on an urban extensive green roof at the semi-arid Mediterranean region
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Effect of substrate type and irrigation frequency on growth of Pallenis maritima on an urban extensive green roof at the semi-arid Mediterranean region

机译：基质型和灌溉频率对半干旱地中海市城市广泛绿色屋顶Pallenis Maritima生长的影响

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摘要

The possibility of using Pallenis maritima, a native drought tolerant plant, on an urban extensive green roof at the semi-arid Mediterranean region was investigated under sparse irrigation and light substrate. Rooted stem cuttings were planted in November 2012 in experimental modules with a green roof infrastructure on a fully exposed flat roof at the Agricultural University of Athens, Greece. Two substrate types with 10 cm depth were used, one with soil, i.e., grape marc compost:perlite:soil: pumice(3:3:2:2, v/v) and a lighter one without soil, i.e., grape marc compost:perlite: pumice (3:3:4, v/v). The experiment lasted 16 months, including one hot and dry (summer) and two cold and wet (winter) periods. Two irrigation frequencies were applied during the dry period (May-Sept. 2013), i.e., every 3 days (normal) and 5 days (sparse) when substrate moisture was 17-20% and 5-9%, respectively. Plant growth was evaluated by plant horizontal expansion recorded monthly during the whole experimental period(Nov. 2012 - Mar. 2014) and the shoot number recorded after the dry period (Sept. 2013). The combination of soil substrate with normal irrigation gave slightly bigger horizontal expansion compared to the other treatments and the soil substrate promoted slightly the production of shoots. However, in general plant growth was quite similar in all treatments. Stomatal resistance (Rieaf) measured in July 2013, one day before irrigation was increased in plants under sparse irrigation indicating water limitation and the maximum quantum yield of PSII (4>psn) was smaller in those plants, but no evidence of damage to the photosynthetic apparatus was recorded in any of the treatments. Taking into account that plants had similar growth in all treatments, Pallenismaritima is recommended for use on extensive green roofs of the arid/semi-arid regions under sparse irrigation and soilless substrate with the desirable benefit of reducing water consumption and construction weight.
机译：在稀疏的灌溉和光基板下，研究了使用Pallenis Maritima的可能性，在半干旱地中海区域的城市广泛的绿色屋顶上进行了城市广泛的绿色屋顶。生根的茎切屑于2012年11月种植在希腊农业大学的完全暴露的平坦屋顶上具有绿色屋顶基础设施的实验模块。使用了两个底物类型，使用10厘米深度，一个有土壤，即葡萄Marc堆肥：珍珠岩：土壤：浮石（3：3：2：2，v / v）和一个没有土壤的打火机，即葡萄Marc堆肥：珍珠岩：浮石（3：3：4，v / v）。实验持续了16个月，包括一个炎热和干燥（夏天）和两个冷和潮湿（冬季）的时期。在干燥期间（5月9月至2013），即每3天（正常）和5天（稀疏）分别为17-20％和5-9％时，施加两种灌溉频率。植物生长是通过整个实验期间每月记录的植物水平扩展评估（2012年11月 - 2014年3月）和干燥期后录制的拍摄号码（2013年9月）。与正常灌溉的土壤基质的组合与其他处理相比，略大的水平膨胀，并且土壤基质促进了枝条的产生。然而，在一般植物生长中，所有治疗中都非常相似。 2013年7月测量的气孔抗性（RIEAF），在灌溉灌溉灌溉灌溉前的一天，表明水限制，并且在这些植物中较小的PSII（4> PSN）的最大量子产率较小，但没有对光合损坏的证据将设备记录在任何处理中。考虑到植物在所有治疗中具有相似的增长，建议使用稀疏灌溉和无土底物的干旱/半干旱区的广泛绿色屋顶，以降低耗水和施工重量的理想益处，适用于干旱/半干旱区的广泛绿色屋顶。

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  • 来源
    《Acta Horticulturae》 |2017年第1189期|共4页
  • 作者

    M. Papafotiou; L. Tassoula; R. Kefalopoulou;

  • 作者单位

    Laboratory of Floriculture and Landscape Architecture Department of Crop Science School of Agricultural Production Infrastructure and Environment Agricultural University of Athens Iera Odos 75 118 55 Athens Greece;

    Laboratory of Floriculture and Landscape Architecture Department of Crop Science School of Agricultural Production Infrastructure and Environment Agricultural University of Athens Iera Odos 75 118 55 Athens Greece;

    Laboratory of Floriculture and Landscape Architecture Department of Crop Science School of Agricultural Production Infrastructure and Environment Agricultural University of Athens Iera Odos 75 118 55 Athens Greece;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 园艺;
  • 关键词

    Asteriscus maritimus; soilless; water stress; urban horticulture; native plant;

    机译：Asteriscus Maritimus;无土;水分压力;城市园艺;原生植物;

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