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Seed priming with growth regulators modulates production, physiology and antioxidant defense of Indian squash (Praecitrullus fistulosus) under semi-arid conditions

Indian squash (Praecitrullus fistulosus) crop faces heat and drought during its growth that is considered the most important abiotic stress in semi-arid areas. Seed priming with growth regulators enhances stress tolerance; hence, mitigates the adverse effects of unpredictable stresses due to adverse...

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Autores principales: Qamar, Rafi, Khan, Sanaullah, Safdar, Muhammad Ehsan, Atique-ur-Rehman, Rehman, Abdul, Javeed, Hafiz Muhammad Rashad, Nadeem, Muhammad Ather, Al-Yahyai, Rashid, Alkahtani, Jawaher
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9009649/
https://www.ncbi.nlm.nih.gov/pubmed/35421113
http://dx.doi.org/10.1371/journal.pone.0265694
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author Qamar, Rafi
Khan, Sanaullah
Safdar, Muhammad Ehsan
Atique-ur-Rehman,
Rehman, Abdul
Javeed, Hafiz Muhammad Rashad
Nadeem, Muhammad Ather
Al-Yahyai, Rashid
Alkahtani, Jawaher
author_facet Qamar, Rafi
Khan, Sanaullah
Safdar, Muhammad Ehsan
Atique-ur-Rehman,
Rehman, Abdul
Javeed, Hafiz Muhammad Rashad
Nadeem, Muhammad Ather
Al-Yahyai, Rashid
Alkahtani, Jawaher
author_sort Qamar, Rafi
collection PubMed
description Indian squash (Praecitrullus fistulosus) crop faces heat and drought during its growth that is considered the most important abiotic stress in semi-arid areas. Seed priming with growth regulators enhances stress tolerance; hence, mitigates the adverse effects of unpredictable stresses due to adverse weather conditions. This two-year (2019 and 2020) study was conducted to infer the role of seed priming in improving heat tolerance of Indian squash (cultivar Sahavi) through improvement in physiological and antioxidant defense systems. Six treatments that included no priming (control), hydropriming, priming with indole acetic acid (IAA) at 100 mg L(-1), salicylic acid (SA) at 50 mg L(-1), ascorbic acid (AA) at 100 mg L(-1) and thiourea at 500 mg L(-1) each for 06 hours) were included in the study. Results revealed that priming with AA and SA significantly (P ≤ 0.05) enhanced germination (39 and 47%), germination index (57 and 58%), plant height (23 and 22%), vine length (15 and 14%), number of fruits per plant (62%), fruit weight per plant (66 and 67%), economic yield (32%), photosynthesis rate (18 and 17%), protein content (10%), proline (23%), glycine betaine (3%), malondialdehyde content (11 and 10%) and catalase activity (24%) compared to control treatment. Furthermore, seed priming with AA and SA significantly (P ≤ 0.05) shortened the mean germination time (25 and 28%) compared to the control. The results indicated that AA and SA had significant potential to mitigate adverse effects of heat stress in Indian squash. Findings from this study showed that seed priming with AA and SA promoted heat-stress tolerance and enhanced growth and productivity of Indian squash.
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spelling pubmed-90096492022-04-15 Seed priming with growth regulators modulates production, physiology and antioxidant defense of Indian squash (Praecitrullus fistulosus) under semi-arid conditions Qamar, Rafi Khan, Sanaullah Safdar, Muhammad Ehsan Atique-ur-Rehman, Rehman, Abdul Javeed, Hafiz Muhammad Rashad Nadeem, Muhammad Ather Al-Yahyai, Rashid Alkahtani, Jawaher PLoS One Research Article Indian squash (Praecitrullus fistulosus) crop faces heat and drought during its growth that is considered the most important abiotic stress in semi-arid areas. Seed priming with growth regulators enhances stress tolerance; hence, mitigates the adverse effects of unpredictable stresses due to adverse weather conditions. This two-year (2019 and 2020) study was conducted to infer the role of seed priming in improving heat tolerance of Indian squash (cultivar Sahavi) through improvement in physiological and antioxidant defense systems. Six treatments that included no priming (control), hydropriming, priming with indole acetic acid (IAA) at 100 mg L(-1), salicylic acid (SA) at 50 mg L(-1), ascorbic acid (AA) at 100 mg L(-1) and thiourea at 500 mg L(-1) each for 06 hours) were included in the study. Results revealed that priming with AA and SA significantly (P ≤ 0.05) enhanced germination (39 and 47%), germination index (57 and 58%), plant height (23 and 22%), vine length (15 and 14%), number of fruits per plant (62%), fruit weight per plant (66 and 67%), economic yield (32%), photosynthesis rate (18 and 17%), protein content (10%), proline (23%), glycine betaine (3%), malondialdehyde content (11 and 10%) and catalase activity (24%) compared to control treatment. Furthermore, seed priming with AA and SA significantly (P ≤ 0.05) shortened the mean germination time (25 and 28%) compared to the control. The results indicated that AA and SA had significant potential to mitigate adverse effects of heat stress in Indian squash. Findings from this study showed that seed priming with AA and SA promoted heat-stress tolerance and enhanced growth and productivity of Indian squash. Public Library of Science 2022-04-14 /pmc/articles/PMC9009649/ /pubmed/35421113 http://dx.doi.org/10.1371/journal.pone.0265694 Text en © 2022 Qamar et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Qamar, Rafi
Khan, Sanaullah
Safdar, Muhammad Ehsan
Atique-ur-Rehman,
Rehman, Abdul
Javeed, Hafiz Muhammad Rashad
Nadeem, Muhammad Ather
Al-Yahyai, Rashid
Alkahtani, Jawaher
Seed priming with growth regulators modulates production, physiology and antioxidant defense of Indian squash (Praecitrullus fistulosus) under semi-arid conditions
title Seed priming with growth regulators modulates production, physiology and antioxidant defense of Indian squash (Praecitrullus fistulosus) under semi-arid conditions
title_full Seed priming with growth regulators modulates production, physiology and antioxidant defense of Indian squash (Praecitrullus fistulosus) under semi-arid conditions
title_fullStr Seed priming with growth regulators modulates production, physiology and antioxidant defense of Indian squash (Praecitrullus fistulosus) under semi-arid conditions
title_full_unstemmed Seed priming with growth regulators modulates production, physiology and antioxidant defense of Indian squash (Praecitrullus fistulosus) under semi-arid conditions
title_short Seed priming with growth regulators modulates production, physiology and antioxidant defense of Indian squash (Praecitrullus fistulosus) under semi-arid conditions
title_sort seed priming with growth regulators modulates production, physiology and antioxidant defense of indian squash (praecitrullus fistulosus) under semi-arid conditions
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9009649/
https://www.ncbi.nlm.nih.gov/pubmed/35421113
http://dx.doi.org/10.1371/journal.pone.0265694
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