Počet záznamů: 1  

Arbuscular mycorrhiza, but not hydrogel, alleviates drought stress ofornamental plants in peat-based substrate

  1. 1.
    0532550 - BÚ 2021 RIV NL eng J - Článek v odborném periodiku
    Rydlová, Jana - Püschel, David
    Arbuscular mycorrhiza, but not hydrogel, alleviates drought stress ofornamental plants in peat-based substrate.
    Applied Soil Ecology. Roč. 146, FEB 2020 (2020), s. 1-8, č. článku 103394. ISSN 0929-1393. E-ISSN 1873-0272
    Grant CEP: GA ČR(CZ) GA17-12166S; GA MŠMT 1M0571
    Institucionální podpora: RVO:67985939
    Klíčová slova: arbuscular mycorrhizal fungi * peat-based substrate * ornamental plants
    Obor OECD: Plant sciences, botany
    Impakt faktor: 4.046, rok: 2020
    Způsob publikování: Open access
    DOI: https://doi.org/10.1016/j.apsoil.2019.103394

    In a greenhouse study, we examined the application potential of symbiotic arbuscular mycorrhizal fungi (AMF) and water absorbing gel (hydrogel) in planting pot-grown ornamental plants that periodically experience drought stress. We tested the hypotheses that either of these treatments can improve plant growth and flowering under conditions of water deficiency. Three species of ornamental plants – Gazania rigens, Pelargonium peltatum and P. zonale – were grown in pots with peat-based substrate either inoculated or non-inoculated with commercial inoculum of AMF, and either with or without added hydrogel. Generous watering during the first 14 weeks ensured well-grown plants. In the next 15 weeks, plants either were well watered or were periodically exposed to moderate or strong drought stress to an initial wilting point or sufficient to cause strong wilting, respectively, before the substrate was again re-saturated with water. The three tested species differed in their resistance to drought stress, P. peltatum being the most resistant and G. rigens the most sensitive. Strong drought decreased shoot biomass of G. rigens and P. zonale, but it had no effect on shoot biomass of P. peltatum, that even increased flowering. As a response to drought, mycorrhizal colonization of plant roots intensified and AMF significantly increased shoot biomass (and several biometric parameters) of all plant species and promoted flowering of G. rigens and P. zonale under all watering regimes. AMF thus confirmed the hypothesized potential for promoting plant growth under drought. On the other hand, the addition of hydrogel brought no positive growth effect on any plant species. On the contrary, it decreased flowering of all plants and interacted negatively with AMF.

    Trvalý link: http://hdl.handle.net/11104/0311024

     
    Název souboruStaženoVelikostKomentářVerzePřístup
    Arbuscular mycorrhiza Rydlová Püschel 2020.pdf0605.7 KBJinápovolen
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.