Seed priming with different agents mitigate alkalinity induced oxidative damage and improves maize growth
Soil alkalinity is a severe threat to crop production globally as it markedly retards plant growth. Different techniques are used to mitigate alkaline stress, but priming techniques are considered the most appropriate. The current study was carried out in complete randomized design (CRD) to evaluat...
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| Format: | Article |
| Language: | English |
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AcademicPres
2022-03-01
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| Series: | Notulae Botanicae Horti Agrobotanici Cluj-Napoca |
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| Online Access: | https://www.notulaebotanicae.ro/index.php/nbha/article/view/12615 |
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| author | Imran KHAN Hina ZAFAR Muhammad U. CHATTHA Athar MAHMOOD Rizwan MAQBOOL Fareeha ATHAR Maryam A. ALAHDAL Farhana BIBI Faisal MAHMOOD Muhammad U. HASSAN Sameer H. QARI |
| author_facet | Imran KHAN Hina ZAFAR Muhammad U. CHATTHA Athar MAHMOOD Rizwan MAQBOOL Fareeha ATHAR Maryam A. ALAHDAL Farhana BIBI Faisal MAHMOOD Muhammad U. HASSAN Sameer H. QARI |
| author_sort | Imran KHAN |
| collection | DOAJ |
| description |
Soil alkalinity is a severe threat to crop production globally as it markedly retards plant growth. Different techniques are used to mitigate alkaline stress, but priming techniques are considered the most appropriate. The current study was carried out in complete randomized design (CRD) to evaluate the effect of different priming techniques on maize crop grown under different levels of alkalinity stress. The experiment was comprised of different treatments of alkalinity stress (AS) including, control, 6 dS m-1 and 12 dS m-1 and different priming techniques including control, hydro-priming (HP), osmo-priming (OP) with potassium nitrate: KNO3) and redox-priming (RP) with hydrogen peroxide (H2O2). Results indicated that alkalinity stress significantly reduced plant growth and biomass production and induced severe alterations in physiological attributes and antioxidant activities. Soil alkalinity significantly reduced the root and shoot growth and subsequent biomass production by increasing electrolyte leakage (70.60%), hydrogen peroxide (H2O2: 31.65%), malondialdehyde (MDA: 46.23%) and sodium (Na+) accumulation (22.76%) and reduction in photosynthetic pigments, relative water contents (RWC), total soluble proteins (TSP) and free amino acids, potassium (K+) accumulation. However, priming treatments significantly alleviated the alkalinity-induced toxic effects and improved plant growth. OP (KNO3) remained the top performing. It appreciably improved plant growth owing to the improved synthesis of photosynthetic pigments, better RWC (16.42%), TSP (138.28%), FAA (178.37%), and K+ accumulation (31.385) and improved antioxidant activities (APX and CAT) by favoring the Na+ exclusion and maintenance of optimum Na+/K+. In conclusion, KNO3 priming is an imperative seed priming practice to improve maize growth and biomass production under alkalinity stress.
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| first_indexed | 2024-12-13T19:36:26Z |
| format | Article |
| id | doaj.art-9d6dfb0bf82f4b3798ad3a5639de0b10 |
| institution | Directory Open Access Journal |
| issn | 0255-965X 1842-4309 |
| language | English |
| last_indexed | 2024-12-13T19:36:26Z |
| publishDate | 2022-03-01 |
| publisher | AcademicPres |
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| series | Notulae Botanicae Horti Agrobotanici Cluj-Napoca |
| spelling | doaj.art-9d6dfb0bf82f4b3798ad3a5639de0b102022-12-21T23:33:47ZengAcademicPresNotulae Botanicae Horti Agrobotanici Cluj-Napoca0255-965X1842-43092022-03-0150110.15835/nbha50112615Seed priming with different agents mitigate alkalinity induced oxidative damage and improves maize growthImran KHAN0Hina ZAFAR1Muhammad U. CHATTHA2Athar MAHMOOD3Rizwan MAQBOOL4Fareeha ATHAR5Maryam A. ALAHDAL6 Farhana BIBI7Faisal MAHMOOD8Muhammad U. HASSAN9Sameer H. QARI10University of Agriculture, Department of Agronomy, Faisalabad, 38040University of Agriculture, Department of Seed Science and Technology, Faisalabad, 38040University of Agriculture, Department of Agronomy, Faisalabad, 38040University of Agriculture, Department of Agronomy, Faisalabad, 38040University of Agriculture, Department of Agronomy, Faisalabad, 38040University of Agriculture, Department of Agronomy, Faisalabad, 38040Umm Al-Qura University, Biology Department, Faculty of Applied Sciences, MakkahUniversity of Agriculture, Department of Agronomy, Faisalabad, 38040Government College University, Department of Environmental Sciences & Engineering, FaisalabadJiangxi Agricultural University, Research Center on Ecological Sciences, Nanchang, 330045Umm Al-Qura University, Al-Jumum University College, Department of Biology, Makkah 21955 Soil alkalinity is a severe threat to crop production globally as it markedly retards plant growth. Different techniques are used to mitigate alkaline stress, but priming techniques are considered the most appropriate. The current study was carried out in complete randomized design (CRD) to evaluate the effect of different priming techniques on maize crop grown under different levels of alkalinity stress. The experiment was comprised of different treatments of alkalinity stress (AS) including, control, 6 dS m-1 and 12 dS m-1 and different priming techniques including control, hydro-priming (HP), osmo-priming (OP) with potassium nitrate: KNO3) and redox-priming (RP) with hydrogen peroxide (H2O2). Results indicated that alkalinity stress significantly reduced plant growth and biomass production and induced severe alterations in physiological attributes and antioxidant activities. Soil alkalinity significantly reduced the root and shoot growth and subsequent biomass production by increasing electrolyte leakage (70.60%), hydrogen peroxide (H2O2: 31.65%), malondialdehyde (MDA: 46.23%) and sodium (Na+) accumulation (22.76%) and reduction in photosynthetic pigments, relative water contents (RWC), total soluble proteins (TSP) and free amino acids, potassium (K+) accumulation. However, priming treatments significantly alleviated the alkalinity-induced toxic effects and improved plant growth. OP (KNO3) remained the top performing. It appreciably improved plant growth owing to the improved synthesis of photosynthetic pigments, better RWC (16.42%), TSP (138.28%), FAA (178.37%), and K+ accumulation (31.385) and improved antioxidant activities (APX and CAT) by favoring the Na+ exclusion and maintenance of optimum Na+/K+. In conclusion, KNO3 priming is an imperative seed priming practice to improve maize growth and biomass production under alkalinity stress. https://www.notulaebotanicae.ro/index.php/nbha/article/view/12615alkalinity stressantioxidant activitiesgrowthionic homeostasisphotosynthetic pigments |
| spellingShingle | Imran KHAN Hina ZAFAR Muhammad U. CHATTHA Athar MAHMOOD Rizwan MAQBOOL Fareeha ATHAR Maryam A. ALAHDAL Farhana BIBI Faisal MAHMOOD Muhammad U. HASSAN Sameer H. QARI Seed priming with different agents mitigate alkalinity induced oxidative damage and improves maize growth Notulae Botanicae Horti Agrobotanici Cluj-Napoca alkalinity stress antioxidant activities growth ionic homeostasis photosynthetic pigments |
| title | Seed priming with different agents mitigate alkalinity induced oxidative damage and improves maize growth |
| title_full | Seed priming with different agents mitigate alkalinity induced oxidative damage and improves maize growth |
| title_fullStr | Seed priming with different agents mitigate alkalinity induced oxidative damage and improves maize growth |
| title_full_unstemmed | Seed priming with different agents mitigate alkalinity induced oxidative damage and improves maize growth |
| title_short | Seed priming with different agents mitigate alkalinity induced oxidative damage and improves maize growth |
| title_sort | seed priming with different agents mitigate alkalinity induced oxidative damage and improves maize growth |
| topic | alkalinity stress antioxidant activities growth ionic homeostasis photosynthetic pigments |
| url | https://www.notulaebotanicae.ro/index.php/nbha/article/view/12615 |
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