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Research Article Open access CC BY 4.0

Biochemical Characterization and Responses of Two Contrasting Genotypes of Chenopodium quinoa Willd. to Salinity in a Hydroponic System

Sirpaul Jaikishun, Shikui Song, Zhenbiao Yang

Asian Research Journal of Agriculture · pp. 41–54 · Published 25 Apr 2023

10.9734/arja/2023/v16i1381

Abstract

Chenopodium quinoa is a promising species for future food security and combating climate change due to its nutritional content and halophytic nature. This study focuses on the temporal differential responses of the salt-tolerant (Chadmo) and the salt-sensitive (Kankolla) under control (CK) and 400 mM NaCl arranged under the randomised block designed (RBD). Biochemical features assessed and results indicate a significant difference (p<0.05) being identified by ANOVA and Tukey analyses in total chlorophyll (CHL), carotenoids (CAR), proline, glycine betaine (GB),  soluble sugars,  K+, Na+, K+/Na+ ratio, Mg2+ and Ca2+ in both genotypes between the CK and 400 mM NaCl. Na+ increased while K+ and the bivalent ions Mg2+ and Ca2+ decreased progressively with time points (CK and 24 h) in both genotypes but more pronounced in Kankolla. Proline increased by 24.45 and 18.63% between the CK and 24 h after exposure to 400 mM NaCl in Chadmo and Kankolla, respectively. Similarly, significant increases were observed in ABA, glycine betaine and soluble sugars from the CK to 24 h after exposure to 400 mM NaCl in both genotypes. Using these biochemical responses to salinity, Chadmo proved to be the better-performing genotype when exposed to 400 mM NaCl and hence identified as the salt-tolerant genotype.

Climate change biochemical halophytes nutrients proline quinoa salinity salt-tolerant

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Cited by 6

The Establishment of Two Efficient Transformation Systems to Manipulate and Analyze Gene Functions in Quinoa (Chenopodium quinoa Willd.)

Yanfang Wang, Yanzi Zhang, Chongjing Dai, Jun Ma, Sirpaul Jaikishun, Wenqiang Li, Zhenbiao Yang, Tongda Xu, Shikui Song · Journal of Advances in Biology & Biotechnology · 2023

Morphophysiological Responses of Two Chenopodium quinoa Genotypes to Salinity in a Hydroponic System

Sirpaul Jaikishun, Shikui Song, Zhenbiao Yang · Asian Research Journal of Agriculture · 2023

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