Kentucky bluegrass (<em>Poa pratensis</em> L.) silicon-treated turfgrass tolerance to short- and long-term salinity condition
The effects of short- and long-term salinity condition were investigated on silicon-treated and control plants of Kentucky bluegrass (KBG) (Poa pratensis L.) in a greenhouse study. Salt stress solely affected visual quality at ≥15 dS m-1 concentrations while Si application increased salt tolerance o...
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Firenze University Press
2016-12-01
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doaj-0a89d9796a0a46d3bf982746e3593d952020-11-25T01:30:02ZengFirenze University PressAdvances in Horticultural Science0394-61691592-15732016-12-0130210.13128/ahs-19134Kentucky bluegrass (<em>Poa pratensis</em> L.) silicon-treated turfgrass tolerance to short- and long-term salinity conditionS. EsmaeiliH. SalehiThe effects of short- and long-term salinity condition were investigated on silicon-treated and control plants of Kentucky bluegrass (KBG) (Poa pratensis L.) in a greenhouse study. Salt stress solely affected visual quality at ≥15 dS m-1 concentrations while Si application increased salt tolerance of KBG after 45 days. In long-term salinity stress, Si had no effect on salt tolerance of KBG at ≥15 dS m-1 concentration. Si increased morphological parameters including height and number of shoots, and physiological parameters including relative water content (RWC) and chlorophyll content of leaves. In addition, fresh and dry weights of roots and shoots in response to high salt concentrations declined, but showed an increase with Si treatment. Proline content and electrolyte leakage (EL) increased under high salinity levels. In response to the Si treatment, Na concentration in the shoots significantly decreased at the 5 dS m-1 salinity level. With increasing salinity levels, the concentration of K in roots and shoots decreased while the amount of K in both Si-treated roots and shoots reduced. Overall, Si alleviative effects were more pronounced in 45 days after turfgrasses being salinity treated.https://oaj.fupress.net/index.php/ahs/article/view/3055chlorophyll contentproline contentsalt stressSi |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
S. Esmaeili H. Salehi |
spellingShingle |
S. Esmaeili H. Salehi Kentucky bluegrass (<em>Poa pratensis</em> L.) silicon-treated turfgrass tolerance to short- and long-term salinity condition Advances in Horticultural Science chlorophyll content proline content salt stress Si |
author_facet |
S. Esmaeili H. Salehi |
author_sort |
S. Esmaeili |
title |
Kentucky bluegrass (<em>Poa pratensis</em> L.) silicon-treated turfgrass tolerance to short- and long-term salinity condition |
title_short |
Kentucky bluegrass (<em>Poa pratensis</em> L.) silicon-treated turfgrass tolerance to short- and long-term salinity condition |
title_full |
Kentucky bluegrass (<em>Poa pratensis</em> L.) silicon-treated turfgrass tolerance to short- and long-term salinity condition |
title_fullStr |
Kentucky bluegrass (<em>Poa pratensis</em> L.) silicon-treated turfgrass tolerance to short- and long-term salinity condition |
title_full_unstemmed |
Kentucky bluegrass (<em>Poa pratensis</em> L.) silicon-treated turfgrass tolerance to short- and long-term salinity condition |
title_sort |
kentucky bluegrass (<em>poa pratensis</em> l.) silicon-treated turfgrass tolerance to short- and long-term salinity condition |
publisher |
Firenze University Press |
series |
Advances in Horticultural Science |
issn |
0394-6169 1592-1573 |
publishDate |
2016-12-01 |
description |
The effects of short- and long-term salinity condition were investigated on silicon-treated and control plants of Kentucky bluegrass (KBG) (Poa pratensis L.) in a greenhouse study. Salt stress solely affected visual quality at ≥15 dS m-1 concentrations while Si application increased salt tolerance of KBG after 45 days. In long-term salinity stress, Si had no effect on salt tolerance of KBG at ≥15 dS m-1 concentration. Si increased morphological parameters including height and number of shoots, and physiological parameters including relative water content (RWC) and chlorophyll content of leaves. In addition, fresh and dry weights of roots and shoots in response to high salt concentrations declined, but showed an increase with Si treatment. Proline content and electrolyte leakage (EL) increased under high salinity levels. In response to the Si treatment, Na concentration in the shoots significantly decreased at the 5 dS m-1 salinity level. With increasing salinity levels, the concentration of K in roots and shoots decreased while the amount of K in both Si-treated roots and shoots reduced. Overall, Si alleviative effects were more pronounced in 45 days after turfgrasses being salinity treated. |
topic |
chlorophyll content proline content salt stress Si |
url |
https://oaj.fupress.net/index.php/ahs/article/view/3055 |
work_keys_str_mv |
AT sesmaeili kentuckybluegrassempoapratensisemlsilicontreatedturfgrasstolerancetoshortandlongtermsalinitycondition AT hsalehi kentuckybluegrassempoapratensisemlsilicontreatedturfgrasstolerancetoshortandlongtermsalinitycondition |
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