Effects of saline stress on growth and crop yield of different maize (Zea mays) genotypes

Gurbanov, Elshad; Molazem, Davar

doi:10.15421/010938

Cited by 1 publication

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“…Salt-stress stimulates an increase in growth inhibitors and a decrease in growth promoters, hence water disturbance in salt-stressed plants limits the uptake of water or absorption of the required nutrients (Khatoon et al 2010;Hala et al 2020). The reduction in fresh weight due to salt stress has been studied by numerous researchers and appeared as a common phenomenon in most trees and crop plants (Gurbanov and Molazem 2009;Alam et al 2016). In this study, a drastic reduction in shoot fresh weight (Figure 3b) was observed, which may be due to the disturbances in physiological activities under salt stress.…”

Section: Discussionmentioning

confidence: 99%

Elucidation of the morpho-physiological traits of maize (Zea mays L.) under salt stress

2022

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Agriculture is an essential sector for the increasing world population, hence the need for more food production. However, the aim of increasing food crop production is mostly suppressed by abiotic stresses such as drought and salinity. Salinity is a major limiting factor that inhibits the potential of plant growth and productivity worldwide. Hence, understanding the mechanisms behind plant stress response is important for developing new biomarker approaches that will increase salt tolerance in crops. To survive, plants exhibit various morphological, physiological, and biochemical processes when faced with saline conditions. This study was carried out to explore and evaluate the morphological and physiological effects of salinity on maize grown in the absence/presence of NaCl, followed by measurement of the various growth parameters at the end of a treatment cycle. Results of the study revealed that salt stress significantly decreased growth parameters such as plant height, leaf number, leaf width, leaf area, leaf length, and shoot (weight and length). On the other hand, salinity decreased physiological traits such as stomatal count, stomatal density, transpiration, and respiration rates. This study has shown the negative effects of salt stress on the morphology and physiology of maize. These findings can be used as a reference tool in stress response studies focusing on salt stress pathways in maize and other related crops.

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Section: Discussionmentioning

confidence: 99%