The Effect of Different Irrigation Water Salinity Levels on Nutrients Uptake, Biochemical Content and Growth Response of Blue Panicum, Quinoa and Silage Maize

Oumasst, Assma; Azougay, Sara; Mimouni, Abdelaziz; Hallam, Jamal

doi:10.3390/environsciproc2022016060

Cited by 2 publications

(3 citation statements)

References 9 publications

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“…In our experiment, the determination of mineral content indicates a high accumulation of sodium on quinoa leaves under high salinity conditions, resulting in an increase of the K/Na ratio. However, Oumasst et al (2022) observed a similar trend for sodium accumulation in the ICBA-Q5 variety under arid conditions in the south of Morocco. They found that the sodium content increased tenfold under 10 dS/m of irrigation water salinity compared to 0.9 dS/m salinity level.…”

Section: Discussionsupporting

confidence: 57%

Agro-morphological and biochemical responses of quinoa (Chenopodium quinoa Willd. var: ICBA-Q5) to organic amendments under various salinity conditions

El Mouttaqi,

Sabraoui,

Belcaid

et al. 2023

Front. Plant Sci.

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In the Sahara Desert, due to drought and salinity and poor soil fertility, very limited crop choice is available for the farmers to grow crops. Quinoa (Chenopodium quinoa Willd.) has shown promising under such conditions in the South of Morocco, a true representative site of Sahara Desert. Soil organic amendments have the potential to minimize negative effects of soil salinity and improve crop production. Thus, this study aimed to elucidate the impact of nine organic amendments on quinoa (var. ICBA-Q5) growth, productivity, and biochemical parameters under saline irrigation water application (4, 12, and 20 dS·m-1). Results of the experiment indicate a significant effect of organic amendments on major agro-morphological and productivity parameters. Biomass and seed yield tends to decrease with the rise of salinity level, and organic amendments have improved productivity compared to the non-treated control. However, salinity stress alleviation was assessed by determining pigments concentration, proline content, phenolic compounds, and antioxidant activity. Therefore, the action of organic amendments varies from one level of salinity to another. Furthermore, a remarkably significant decrease in total saponin content was reached due to the application of amendments even at high saline conditions (20 dS·m-1). The results demonstrate the possibility of enhancing the productivity of quinoa as an alternative food crop under salinity conditions by using organic amendments and improving the quality of grains (saponin reduction) during the pre-industrialization process.

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Section: Discussionsupporting

confidence: 57%

Agro-morphological and biochemical responses of quinoa (Chenopodium quinoa Willd. var: ICBA-Q5) to organic amendments under various salinity conditions

El Mouttaqi,

Sabraoui,

Belcaid

et al. 2023

Front. Plant Sci.

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“…(2021) showed that blue panicgrass yield was only reduced by 40% under high salinity with a salt concentration equal to 15000 mg.l -1 compared to control irrigated with freshwater. Adjacent to the experimental site of the present work in the Souss Massa region (central Morocco), Oumasst et al. (2021) irrigated blue panicgrass in a pot experiment with four salinity levels (1, 3, 6, and 10 dS.m -1 ).…”

Section: Introductionmentioning

confidence: 99%

“…Another study by Farrag et al (2021) showed that blue panicgrass yield was only reduced by 40% under high salinity with a salt concentration equal to 15000 mg.l -1 compared to control irrigated with freshwater. Adjacent to the experimental site of the present work in the Souss Massa region (central Morocco), Oumasst et al (2021) irrigated blue panicgrass in a pot experiment with four salinity levels (1, 3, 6, and 10 dS.m -1 ). Their obtained results revealed no significant difference between the tested salinity levels in terms of biomass yield which indicate that the salinity tolerance threshold of blue panicgrass is probably beyond 10 dS.m -1 .…”

Section: Introductionmentioning

confidence: 99%

Influence of cutting time interval and season on productivity, nutrient partitioning, and forage quality of blue panicgrass (Panicum antidotale Retz.) under saline irrigation in Southern region of Morocco

Mouttaqi¹,

Mnaouer²,

Nilahyane³

et al. 2023

Front. Plant Sci.

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Salinity has become a major issue in various parts of the world negatively impacting agricultural activities and leading to diminished crop potential and lower yields. Such situation calls for urgent interventions such as adopting salt-tolerant crops to fill the gap in food and feed availability. Blue panicgrass (Panicum antidotale Retz.) is a promising salt-tolerant forage crop that has shown an appropriate adaptation and performance in the saline, arid, and desertic environments of southern Morocco. However, for obtaining a highest forage productivity with nutritional quality, optimization of the cutting interval is required. Thus, the objective of this study was to determine the optimal cutting time interval allowing high forage production and quality under high salinity conditions. This experiment was conducted over one entire year covering the summer and winter seasons. The effect of five cutting time intervals on selected agro-morphological traits, crop productivity, mineral nutrient accumulation, and forage quality of blue panicgrass in the region of Laayoune, southern Morocco. The finding of this study recommend that cutting blue panicgrass every 40 days maximized the annual fresh and dry forage yield as well as the protein yield, which reached 74, 22, and 2.9 t/ha, respectively. This study also revealed a significant effect of the season on both productivity and quality. However, forage yield declined during the winter and increased during the summer, while protein content increased during winter compared to summer. The mineral nutrient partitioning between shoots and roots, especially the K+/Na+ ratio, indicated that blue panicgrass has salt tolerance mechanism as it excluded sodium from the roots and compartmentalized it in the leaves. In conclusion, there is a potential of blue panicgrass on sustaining forage production under salt-affected drylands, as demonstrated by the response to two key questions: (a) a technical question to farmers for its adoption such as at which interval should blue panicgrass be harvested maximizing both forage yield and quality? And (b) a scientific question on how does blue panicgrass maintain high K+/Na+ ratio to cope with salinity stress?

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The Effect of Different Irrigation Water Salinity Levels on Nutrients Uptake, Biochemical Content and Growth Response of Blue Panicum, Quinoa and Silage Maize

Abstract: This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).

Cited by 2 publications

References 9 publications

Agro-morphological and biochemical responses of quinoa (Chenopodium quinoa Willd. var: ICBA-Q5) to organic amendments under various salinity conditions

Agro-morphological and biochemical responses of quinoa (Chenopodium quinoa Willd. var: ICBA-Q5) to organic amendments under various salinity conditions

Influence of cutting time interval and season on productivity, nutrient partitioning, and forage quality of blue panicgrass (Panicum antidotale Retz.) under saline irrigation in Southern region of Morocco

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