Efficacy of KNO3, SiO2 and SA priming for improving emergence, seedling growth and antioxidant enzymes of rice (Oryza sativa), under drought

Abstract Rice is an important staple crop produced and consumed worldwide. However, poor seed emergence is one of the main impediments to obtaining higher yield of rice especially in hot and dry ecosystems of the world that are ravaged by drought. Therefore, this study was carried out to evaluate th...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Lawan Gana Ali, Rosimah Nulit, Mohd Hafiz Ibrahim, Christina Yong Seok Yien
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ed4f3cb0157d43268cb9137d5385cf1c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:ed4f3cb0157d43268cb9137d5385cf1c
record_format	dspace
spelling	oai:doaj.org-article:ed4f3cb0157d43268cb9137d5385cf1c2021-12-02T14:21:56ZEfficacy of KNO3, SiO2 and SA priming for improving emergence, seedling growth and antioxidant enzymes of rice (Oryza sativa), under drought10.1038/s41598-021-83434-32045-2322https://doaj.org/article/ed4f3cb0157d43268cb9137d5385cf1c2021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83434-3https://doaj.org/toc/2045-2322Abstract Rice is an important staple crop produced and consumed worldwide. However, poor seed emergence is one of the main impediments to obtaining higher yield of rice especially in hot and dry ecosystems of the world that are ravaged by drought. Therefore, this study was carried out to evaluate the effects of potassium nitrate (KNO3), salicylic acid (SA) and silicon dioxide (SiO2) priming in improving emergence, seedling growth, biochemical attributes and antioxidant activities of FARO44 rice under drought conditions. Rice seedlings primed with 2.5% and 5% KNO3, 3% and 3.5% SiO2, and 1 mM and 2.5 mM SA were subjected to three drought levels of low, moderate and severe under the greenhouse. Seed emergence, seedling growth, biochemical attributes and antioxidant activities were thereafter evaluated. Seed priming experiments were laid in a completely randomized design with five replicates per treatment. The results found that rice seedlings responded differently to different priming treatments. However, all primed rice seedlings had significantly (P ≤ 0.05) improved emergence percentage (72–92%), seedling growth, seedling vigor, seedling fresh and dry biomass and shorter emergence time compared with controls. Likewise, total soluble protein content, activities of catalase, ascorbate peroxidase and superoxide dismutase, carbohydrate, soluble sugar and total chlorophyll contents of rice seedlings were increased by more than two-folds by seed priming compared with control. Salicylic acid showed less effect in increasing emergence, seedling growth, antioxidant activities and biochemical attributes of rice. Thus, this study established that seed priming with KNO3 (2.5% and 5%) and SiO2 (3% and 3.5%) were more effective in improving emergence, seedling growth, biochemical attributes and antioxidant activities of FARO44. Thus, priming of FARO44 rice with this chemical is recommended for fast emergence, seedling growth and drought resistance in dry ecosystems.Lawan Gana AliRosimah NulitMohd Hafiz IbrahimChristina Yong Seok YienNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lawan Gana Ali Rosimah Nulit Mohd Hafiz Ibrahim Christina Yong Seok Yien Efficacy of KNO3, SiO2 and SA priming for improving emergence, seedling growth and antioxidant enzymes of rice (Oryza sativa), under drought
description	Abstract Rice is an important staple crop produced and consumed worldwide. However, poor seed emergence is one of the main impediments to obtaining higher yield of rice especially in hot and dry ecosystems of the world that are ravaged by drought. Therefore, this study was carried out to evaluate the effects of potassium nitrate (KNO3), salicylic acid (SA) and silicon dioxide (SiO2) priming in improving emergence, seedling growth, biochemical attributes and antioxidant activities of FARO44 rice under drought conditions. Rice seedlings primed with 2.5% and 5% KNO3, 3% and 3.5% SiO2, and 1 mM and 2.5 mM SA were subjected to three drought levels of low, moderate and severe under the greenhouse. Seed emergence, seedling growth, biochemical attributes and antioxidant activities were thereafter evaluated. Seed priming experiments were laid in a completely randomized design with five replicates per treatment. The results found that rice seedlings responded differently to different priming treatments. However, all primed rice seedlings had significantly (P ≤ 0.05) improved emergence percentage (72–92%), seedling growth, seedling vigor, seedling fresh and dry biomass and shorter emergence time compared with controls. Likewise, total soluble protein content, activities of catalase, ascorbate peroxidase and superoxide dismutase, carbohydrate, soluble sugar and total chlorophyll contents of rice seedlings were increased by more than two-folds by seed priming compared with control. Salicylic acid showed less effect in increasing emergence, seedling growth, antioxidant activities and biochemical attributes of rice. Thus, this study established that seed priming with KNO3 (2.5% and 5%) and SiO2 (3% and 3.5%) were more effective in improving emergence, seedling growth, biochemical attributes and antioxidant activities of FARO44. Thus, priming of FARO44 rice with this chemical is recommended for fast emergence, seedling growth and drought resistance in dry ecosystems.
format	article
author	Lawan Gana Ali Rosimah Nulit Mohd Hafiz Ibrahim Christina Yong Seok Yien
author_facet	Lawan Gana Ali Rosimah Nulit Mohd Hafiz Ibrahim Christina Yong Seok Yien
author_sort	Lawan Gana Ali
title	Efficacy of KNO3, SiO2 and SA priming for improving emergence, seedling growth and antioxidant enzymes of rice (Oryza sativa), under drought
title_short	Efficacy of KNO3, SiO2 and SA priming for improving emergence, seedling growth and antioxidant enzymes of rice (Oryza sativa), under drought
title_full	Efficacy of KNO3, SiO2 and SA priming for improving emergence, seedling growth and antioxidant enzymes of rice (Oryza sativa), under drought
title_fullStr	Efficacy of KNO3, SiO2 and SA priming for improving emergence, seedling growth and antioxidant enzymes of rice (Oryza sativa), under drought
title_full_unstemmed	Efficacy of KNO3, SiO2 and SA priming for improving emergence, seedling growth and antioxidant enzymes of rice (Oryza sativa), under drought
title_sort	efficacy of kno3, sio2 and sa priming for improving emergence, seedling growth and antioxidant enzymes of rice (oryza sativa), under drought
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ed4f3cb0157d43268cb9137d5385cf1c
work_keys_str_mv	AT lawanganaali efficacyofkno3sio2andsaprimingforimprovingemergenceseedlinggrowthandantioxidantenzymesofriceoryzasativaunderdrought AT rosimahnulit efficacyofkno3sio2andsaprimingforimprovingemergenceseedlinggrowthandantioxidantenzymesofriceoryzasativaunderdrought AT mohdhafizibrahim efficacyofkno3sio2andsaprimingforimprovingemergenceseedlinggrowthandantioxidantenzymesofriceoryzasativaunderdrought AT christinayongseokyien efficacyofkno3sio2andsaprimingforimprovingemergenceseedlinggrowthandantioxidantenzymesofriceoryzasativaunderdrought
_version_	1718391523048947712

Efficacy of KNO3, SiO2 and SA priming for improving emergence, seedling growth and antioxidant enzymes of rice (Oryza sativa), under drought

Ejemplares similares