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首页> 外文期刊>Journal of arid environments >Influence of salinity and storage on germination of Tamarix taxa with contrasted ecological requirements
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Influence of salinity and storage on germination of Tamarix taxa with contrasted ecological requirements

机译：盐分和贮藏对红豆杉分类萌发的生态需​​求影响

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摘要

Tamarix typically appears in arid and semiarid habitats that are characterised by a broad spectrum of soil salinity. Scarce data are available about the influence of salt on seed germination. The aim of this paper is to analyse the influence of salinity and the loss of viability over time on seed germination of three western Mediterranean autochthonous Tamarix species (Tamarix africana, Tamarix boveana and Tamarix gallica) plus the eastern Mediterranean allochthonous Tamarix parviflora. These species appear in non saline to hypersaline ecosystems. Germination percentage and mean-time germination were calculated. In general, germination was higher at no salinity, whereas higher salinities delayed germination. Seed germination of T. africana dramatically dropped at 1% salinity (from 23.7% to 4.1%), whereas for T boveana and T. parviflora, germination decreased at 6% salinity (from 95% to 42% and from 89% to 14%, respectively), though T. boveana still retained a high germination percentage. Seeds of T. gallica showed intermediate behaviour and no germination was recorded for 6% salinity. Seed germination is also influenced by the storage time. After 3 months, germination values notably decreased to almost zero (from 70.6% to 0% for T gallica and from 89% to 8% for T. parviflora), except for T. africana. In the latter case, 1 month was enough to reduce germination values (from 233% to 2%). The observed germination differences match with their presence or absence in different semiarid damp environments and point at a dramatic loss of viability over time. (C) 2016 Elsevier Ltd. All rights reserved.
机译：mari柳通常出现在干旱和半干旱的生境中，这些生境具有广泛的土壤盐分。关于盐对种子发芽的影响的可用数据很少。本文的目的是分析盐度和生存力随时间的推移对三种西地中海自生Ta柳（Tamarix africana，Tamarix boveana和Tamarix gallica）以及地中海东部异源Tamarix parviflora种子萌发的影响。这些物种出现在非盐至高盐生态系统中。计算发芽率和平均发芽率。通常，无盐度下发芽率较高，而较高盐度则延迟发芽。非洲锥虫的种子发芽率在盐度为1％时显着下降（从23.7％降至4.1％），而非洲象鼻虫和细叶锥虫的发芽率在盐度为6％时下降（从95％降至42％，从89％降至14％）。分别），尽管波黑虫（T. boveana）仍然保留了较高的发芽率。 T. gallica的种子表现出中等的行为，没有记录到6％的盐度发芽。种子发芽还受保存时间的影响。 3个月后，发芽率显着下降至几乎为零（T gall藜从70.6％降至0％，T。parviflora从89％降至8％），非洲african藜除外。在后一种情况下，1个月足以降低发芽值（从233％降至2％）。观察到的发芽差异与它们在不同的半干旱潮湿环境中的存在与否相匹配，并随着时间的流逝而显着丧失了生存能力。 （C）2016 Elsevier Ltd.保留所有权利。

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  • 来源
    《Journal of arid environments》 |2016年第12期|17-21|共5页
  • 作者

    Terrones Alejandro; Moreno Joaquin; Agullo Jonas C.; Villar Jose L.; Vicente Alicia; Angeles Alonso M.; Juan Ana;

  • 作者单位

    Univ Alicante, Dept Ciencias Ambientales & Recursos Nat, Inst Biodiversidad CIBIO, Carretera San Vicente S-N, Alicante 03690, Spain;

    Univ Alicante, Dept Ciencias Ambientales & Recursos Nat, Inst Biodiversidad CIBIO, Carretera San Vicente S-N, Alicante 03690, Spain;

    Univ Alicante, Dept Ciencias Ambientales & Recursos Nat, Inst Biodiversidad CIBIO, Carretera San Vicente S-N, Alicante 03690, Spain;

    Univ Alicante, Dept Ciencias Ambientales & Recursos Nat, Inst Biodiversidad CIBIO, Carretera San Vicente S-N, Alicante 03690, Spain;

    Univ Alicante, Dept Ciencias Ambientales & Recursos Nat, Inst Biodiversidad CIBIO, Carretera San Vicente S-N, Alicante 03690, Spain;

    Univ Alicante, Dept Ciencias Ambientales & Recursos Nat, Inst Biodiversidad CIBIO, Carretera San Vicente S-N, Alicante 03690, Spain;

    Univ Alicante, Dept Ciencias Ambientales & Recursos Nat, Inst Biodiversidad CIBIO, Carretera San Vicente S-N, Alicante 03690, Spain;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ecological distribution; Mean-time germination; Salinity; Seed germination; Storage time; Tamarix;

    机译：生态分布;平均时间发芽;盐度;种子发芽;贮藏时间;Ta柳;

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