Effect of salinity on the germination of wheat and barley in South Africa

Bagwasi, Gaesejwe; Agenbag, G. A.; Swanepoel, Pieter A.

doi:10.1002/cft2.20069

Cited by 10 publications

(7 citation statements)

References 24 publications

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“…Other factors, i.e., water shortage, rainfall limitations, and high evapotranspiration, induced soil salinity in various regions of the globe [27,28]. A high concentration of salts in the soil solution can negatively affect the uptake of water and essential nutrients, reduce plant growth and development, and alter the physiochemical processes (Figure 2) [6,28,29].…”

Section: Figurementioning

confidence: 99%

“…Reducing the α-amylase activity can reduce the sugars translocation into the developing embryo [38]. For example, when wheat and barley seeds were exposed to salt stress, between 40 and 120 nM, germination was reduced by 20% to 40%, while seeds were not germinated with salinity levels of 160-200 nM (Table 1) [27].…”

Section: Seed Germination and Plant Growth Under Salt Conditionsmentioning

confidence: 99%

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Field Crop Responses and Management Strategies to Mitigate Soil Salinity in Modern Agriculture: A Review

et al. 2021

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The productivity of cereal crops under salt stress limits sustainable food production and food security. Barley followed by sorghum better adapts to salinity stress, while wheat and maize are moderately adapted. However, rice is a salt-sensitive crop, and its growth and grain yield are significantly impacted by salinity stress. High soil salinity can reduce water uptake, create osmotic stress in plants and, consequently, oxidative stress. Crops have evolved different tolerance mechanisms, particularly cereals, to mitigate the stressful conditions, i.e., effluxing excessive sodium (Na+) or compartmentalizing Na+ to vacuoles. Likewise, plants activate an antioxidant defense system to detoxify apoplastic cell wall acidification and reactive oxygen species (ROS). Understanding the response of field crops to salinity stress, including their resistance mechanisms, can help breed adapted varieties with high productivity under unfavourable environmental factors. In contrast, the primary stages of seed germination are more critical to osmotic stress than the vegetative stages. However, salinity stress at the reproductive stage can also decrease crop productivity. Biotechnology approaches are being used to accelerate the development of salt-adapted crops. In addition, hormones and osmolytes application can mitigate the toxicity impact of salts in cereal crops. Therefore, we review the salinity on cereal crops physiology and production, the management strategies to cope with the harmful negative effect on cereal crops physiology and production of salt stress.

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Section: Figurementioning

confidence: 99%

Section: Seed Germination and Plant Growth Under Salt Conditionsmentioning

confidence: 99%

Field Crop Responses and Management Strategies to Mitigate Soil Salinity in Modern Agriculture: A Review

et al. 2021

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“…While a plant endures abiotic stress, a variety of genes are switched on or off, leading to changes in many metabolites and proteins, responsible for triggering salinity stress defense [65].…”

Section: Primary Metabolismmentioning

confidence: 99%

Current Advances in Plant Growth Promoting Bacteria Alleviating Salt Stress for Sustainable Agriculture

2020

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Humanity in the modern world is confronted with diverse problems at several levels. The environmental concern is probably the most important as it threatens different ecosystems, food, and farming as well as humans, animals, and plants. More specifically, salinization of agricultural soils is a global concern because of on one side, the permanent increase of the areas affected, and on the other side, the disastrous damage caused to various plants affecting hugely crop productivity and yields. Currently, great attention is directed towards the use of Plant Growth Promoting Bacteria (PGPB). This alternative method, which is healthy, safe, and ecological, seems to be very promising in terms of simultaneous salinity alleviation and improving crop productivity. This review attempts to deal with different aspects of the current advances concerning the use of PGPBs for saline stress alleviation. The objective is to explain, discuss, and present the current progress in this area of research. We firstly discuss the implication of PGPB on soil desalinization. We present the impacts of salinity on crops. We look for the different salinity origin and its impacts on plants. We discuss the impacts of salinity on soil. Then, we review various recent progress of hemophilic PGPB for sustainable agriculture. We categorize the mechanisms of PGPB toward salinity tolerance. We discuss the use of PGPB inoculants under salinity that can reduce chemical fertilization. Finally, we present some possible directions for future investigation. It seems that PGPBs use for saline stress alleviation gain more importance, investigations, and applications. Regarding the complexity of the mechanisms implicated in this domain, various aspects remain to be elucidated.

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“…Podder et al (2020) have reported a similarly reduced mungbean germination under salinity. Decreased seed germination with increased salt concentration was also reported in wheat (Bagwasi et al, 2020) and rice (Öner et al, 2020). Therefore, germination attributes are the most critical and valuable attributes that reflect time, rapidity, uniformity, and synchronization in seed germination under salt stress.…”

Section: Effect Of Salt Stress On Seed Germinationmentioning

confidence: 64%

Morphological, physiological, and biochemical responses to NaCl-induced salt stress in mungbean (Vigna radiata L.) varieties

Mankar¹,

Wayase²,

Shelke³

et al. 2021

Not Sci Biol

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Seventeen mungbean varieties [Vigna radiata (L.) R. Wilczek] were subjected to 100-400 mM salinity stress at the germination stage, and the indices of seed germination and early seedling growth were analysed. With the increasing salinity, seed germination and seedling growth attributes were affected in all varieties. Principal component analysis and hierarchical cluster analysis of varietal responses on the germination and seeding growth attributes at 400 mM NaCl separated seventeen varieties into four distinct clusters. Principal component analysis at lower salt stress levels indicated that the attributes of germination and early seedling growth are reliable to identify salt-tolerant mungbean varieties. In contrast, only germination attributes are reliable at higher salinity levels. Two salt-susceptible and salt-tolerant varieties were further assessed for NaCl-induced physiological and biochemical changes. Levels of proteins, secondary metabolites, osmolyte, and antioxidants were increased at lower salt concentrations but reduced at higher salt concentrations. Photosynthetic pigments decreased and membrane damage increased under salinity. Varieties that showed tolerance to salt stress can be used in salinity-affected agriculture fields after validating their salt tolerance in field experiments.

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Effect of salinity on the germination of wheat and barley in South Africa

Cited by 10 publications

References 24 publications

Field Crop Responses and Management Strategies to Mitigate Soil Salinity in Modern Agriculture: A Review

Field Crop Responses and Management Strategies to Mitigate Soil Salinity in Modern Agriculture: A Review

Current Advances in Plant Growth Promoting Bacteria Alleviating Salt Stress for Sustainable Agriculture

Morphological, physiological, and biochemical responses to NaCl-induced salt stress in mungbean (Vigna radiata L.) varieties

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