HARDENING PRETREATMENT BY DROUGHT AND LOW TEMPERATURE ENHANCED CHILLING STRESS TOLERANCE OF CUCUMBER SEEDLINGS

Chilling stress is of major limiting factors influencing the growth and development of warm-season crops like cucumber. In this research, the possibility of chilling tolerance of cucumber seedlings was investigated through employing the drought and low-temperature pretreatments. The factorial experi...

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Main Authors: Fardin Ghanbari, Sajad Kordi
Format: Article
Language:English
Published: University of Life Sciences in Lublin - Publishing House 2019-04-01
Series:Acta Scientiarum Polonorum: Hortorum Cultus
Subjects:
Online Access:https://czasopisma.up.lublin.pl/index.php/asphc/article/view/433
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author Fardin Ghanbari
Sajad Kordi
author_facet Fardin Ghanbari
Sajad Kordi
author_sort Fardin Ghanbari
collection DOAJ
description Chilling stress is of major limiting factors influencing the growth and development of warm-season crops like cucumber. In this research, the possibility of chilling tolerance of cucumber seedlings was investigated through employing the drought and low-temperature pretreatments. The factorial experiment consisted of two factors including cucumber cultivars (i.e. ‘Super Dominos’ and ‘Super Star’) and hardening treatments (control, low temperatures at 10°C, and 15°C and drought simulated by 10% and 20% PEG) based on completely randomized design (CRD) in 3 replications. After applying treatments and providing them 48 h opportunity to be recovered, the seedlings were subjected to 3°C for a six-day period and 6 h for each day. All hardening treatments improved seedlings’ growth, chlorophyll content, total phenol (TP) and antioxidant enzyme activities, while reducing chilling injury index and malondialdehyde (MDA) content. Comparing to temperature hardening, the drought pretreatment showed to have a better effect on inducing the chilling tolerance into cultivars. Overall, the results of this experiment showed that employing drought and low-temperature pretreatments enabled cucumber seedlings to mitigate the harmful effects of chilling.
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spelling doaj.art-aedc1eead7de49978d553c081207d45b2023-12-12T07:55:47ZengUniversity of Life Sciences in Lublin - Publishing HouseActa Scientiarum Polonorum: Hortorum Cultus1644-06922545-14052019-04-0118210.24326/asphc.2019.2.4HARDENING PRETREATMENT BY DROUGHT AND LOW TEMPERATURE ENHANCED CHILLING STRESS TOLERANCE OF CUCUMBER SEEDLINGSFardin Ghanbari0Sajad Kordi1Young Researchers and Elite Club, Khorram-Abad Branch, Islamic Azad University, Khorram-Abad, IranYoung Researchers and Elite Club, Khorram-Abad Branch, Islamic Azad University, Khorram-Abad, IranChilling stress is of major limiting factors influencing the growth and development of warm-season crops like cucumber. In this research, the possibility of chilling tolerance of cucumber seedlings was investigated through employing the drought and low-temperature pretreatments. The factorial experiment consisted of two factors including cucumber cultivars (i.e. ‘Super Dominos’ and ‘Super Star’) and hardening treatments (control, low temperatures at 10°C, and 15°C and drought simulated by 10% and 20% PEG) based on completely randomized design (CRD) in 3 replications. After applying treatments and providing them 48 h opportunity to be recovered, the seedlings were subjected to 3°C for a six-day period and 6 h for each day. All hardening treatments improved seedlings’ growth, chlorophyll content, total phenol (TP) and antioxidant enzyme activities, while reducing chilling injury index and malondialdehyde (MDA) content. Comparing to temperature hardening, the drought pretreatment showed to have a better effect on inducing the chilling tolerance into cultivars. Overall, the results of this experiment showed that employing drought and low-temperature pretreatments enabled cucumber seedlings to mitigate the harmful effects of chilling. https://czasopisma.up.lublin.pl/index.php/asphc/article/view/433antioxidantcatalasechilling injurychlorophyllhardening
spellingShingle Fardin Ghanbari
Sajad Kordi
HARDENING PRETREATMENT BY DROUGHT AND LOW TEMPERATURE ENHANCED CHILLING STRESS TOLERANCE OF CUCUMBER SEEDLINGS
Acta Scientiarum Polonorum: Hortorum Cultus
antioxidant
catalase
chilling injury
chlorophyll
hardening
title HARDENING PRETREATMENT BY DROUGHT AND LOW TEMPERATURE ENHANCED CHILLING STRESS TOLERANCE OF CUCUMBER SEEDLINGS
title_full HARDENING PRETREATMENT BY DROUGHT AND LOW TEMPERATURE ENHANCED CHILLING STRESS TOLERANCE OF CUCUMBER SEEDLINGS
title_fullStr HARDENING PRETREATMENT BY DROUGHT AND LOW TEMPERATURE ENHANCED CHILLING STRESS TOLERANCE OF CUCUMBER SEEDLINGS
title_full_unstemmed HARDENING PRETREATMENT BY DROUGHT AND LOW TEMPERATURE ENHANCED CHILLING STRESS TOLERANCE OF CUCUMBER SEEDLINGS
title_short HARDENING PRETREATMENT BY DROUGHT AND LOW TEMPERATURE ENHANCED CHILLING STRESS TOLERANCE OF CUCUMBER SEEDLINGS
title_sort hardening pretreatment by drought and low temperature enhanced chilling stress tolerance of cucumber seedlings
topic antioxidant
catalase
chilling injury
chlorophyll
hardening
url https://czasopisma.up.lublin.pl/index.php/asphc/article/view/433
work_keys_str_mv AT fardinghanbari hardeningpretreatmentbydroughtandlowtemperatureenhancedchillingstresstoleranceofcucumberseedlings
AT sajadkordi hardeningpretreatmentbydroughtandlowtemperatureenhancedchillingstresstoleranceofcucumberseedlings