Effects of Exogenous Chitosan on Physiological Characteristics in Waxy Maize Seedlings under Salt Stress

2021 ◽  
Keyword(s):  
Salt Stress ◽  
Physiological Characteristics ◽  
Maize Seedlings ◽  
Waxy Maize

scholarly journals Use of a Biostimulant to Mitigate Salt Stress in Maize Plants

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1755
Author(s):  
Roberto D’Amato ◽  
Daniele Del Buono
Keyword(s):  
Salt Stress ◽  
Crop Yields ◽  
Total Phenolic ◽  
Maize Seedlings ◽  
Fresh Weight ◽  
Antioxidant Power ◽  
Crop Development ◽  
Ferric Reducing Antioxidant Power ◽  
Maize Plants ◽  
The Impact

Salinity is considered among the abiotic stresses most impacting agriculture for its ability to interfere with crop development and quality. For this reason, practices and innovations that could contain the deleterious effects of such stress are of pivotal importance for maintaining acceptable crop yields. In this context, this work has concerned the study of severe salt stress (100 mM NaCl) on maize seedlings and the effects of a plant biostimulant (Megafol–Meg) in helping plants to cope with this adversity. Biomass production, pigments, the content Na+ and K+, the accumulation of hydrogen peroxide (H2O2) and lipid peroxidation products (MDA), total phenolic compounds (TPC), 2,2-diphenyl-1-picrylhydrazyl (DPPH), ferric reducing antioxidant power (FRAP), and 2,2-azinobis (3-ethyl-benzothiazoline-6-sulfonic acid) (ABTS) were investigated in control samples, in samples treated with NaCl alone, and in samples treated with NaCl in combination with the biostimulant. The results showed that the biostimulant significantly mitigated the impact of the salt stress on shoot length and fresh weight, on chlorophyll and carotenoid contents, and reduced the amount of Na+ taken up by the species. Regarding the oxidative status, the biostimulated samples revealed lower amounts of H2O2 and MDA, while maize seedlings grown with NaCl alone exhibited the highest increases in the TPC, ABTS, and FRAP. The explanation for these effects is provided by highlighting the effectiveness of the biostimulant in avoiding Na+ accumulation, which resulted in a lower content of H2O2, MDA, TPC, and antioxidant activity.

scholarly journals Root morphological and physiological characteristics in maize seedlings adapted to low iron stress

PLoS ONE ◽  
2020 ◽  
Vol 15 (9) ◽  
pp. e0239075
Author(s):  
Wengjing Long ◽  
Qiang Li ◽  
Nianxin Wan ◽  
Dongju Feng ◽  
Fanlei Kong ◽  
...  
Keyword(s):  
Physiological Characteristics ◽  
Iron Stress ◽  
Maize Seedlings

The response of maize seedlings to salt stress under increasing levels of phosphorus

2015 ◽  
Author(s):  
Elżbieta Sacała ◽  
Elżbieta Sacała ◽  
Anna Demczuk ◽  
Edward Grzyś
Keyword(s):  
Salt Stress ◽  
Maize Seedlings
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