Nitrogen management enhanced plant growth, antioxidant ability, and grain yield of rice under salinity stress

Zhu, Guanglong; Lu, Haitong; Shi, Xiaoxu; Wang, Yue; Zhi, Wenfang; Chen, Xubing; Liu, Jiawei; Ren, Zhijun; Shi, Yu; Ji, Zhongya; Jiao, Xiurong; Ibrahim, Muhi Eldeen Hussien; Nimir, Nimir Eltyb Ahmed; Zhou, Guisheng

doi:10.1002/agj2.20013

Cited by 17 publications

(27 citation statements)

References 51 publications

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“…It is also attributed that increase in grain yield from N application to an increase in the number of kernels per unit area. These findings are also suggested by Latiri-Souki et al (1998), Zayed et al (2013) and Guanglong et al (2020) in rice.…”

Section: Resultssupporting

confidence: 82%

Ameliorative Effects of Nitrogen Application on Vegetative Growth and Productivity in Genotypes of Ragi (Eleusine coracana Gaertn.) under Saline Conditions

Agarwal¹,

Kumar²

2021

IJARe

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Background: Salinity and low soil nitrogen availability are important growth limiting factors for most crops. The proper use of N fertilizer is not only important for growth but it may also alter the salinity tolerance of plants depending on the level of salinity. Methods: The present study was undertaken to determine the interactive effects of N nutrition and saline irrigations (3, 6, 7.2, 10, 12 and 14 dSm-1) on growth and grain productivity in two varieties of finger millet viz. VL-315 and Local Hills. Different growth and productivity parameters (like plant height, dry weight of shoot, root and leaves, dry weight of panicle/plant, no. of grains, grain yield/plant etc.) adversely affected by saline irrigations, however, nitrogen nutrition minimized at different levels of salinity. Result: The positive response of nitrogen was comparatively higher at lower salinity levels (3-7.2 dSm-1) as well as at control than higher salinity (10-14 dSm-1). The effect of salinity was lower in cv. VL- 315 than Local Hills, but the interactive effects of N nutrition and salinity also enhanced the dry weight of shoot, root, leaves, dry weight of panicles and grains/plant. It is probable that N nutrition had enhanced assimilation of NO3-1-N, through the activity of NRA which further increased total nitrogen and protein content in leaves, hence, enhanced growth, biological and grain yield in both cultivars.

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Section: Resultssupporting

confidence: 82%

Ameliorative Effects of Nitrogen Application on Vegetative Growth and Productivity in Genotypes of Ragi (Eleusine coracana Gaertn.) under Saline Conditions

Agarwal¹,

Kumar²

2021

IJARe

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“…Likewise, the individual effects of nitrogen fertilizers on the growth and production of quinoa seeds have been studied, and the optimal levels of nitrogen nutrition for the quinoa crop have been estimated to be ranged between 75 to 160 kg N ha -1 (Jacobsen et al 1994, Erley et al 2005, Basra et al 2014, Geren 2015. The proper use of nitrogen nutrition to mitigate the harmful effects of salt stress has been discussed on several glycophyte crops (Chen et al 2010, Zhang et al 2012, Ashraf et al 2018, Ibrahim et al 2018, Hessini et al 2019, Song et al 2019, Qin et al 2020, Zhu et al 2020. But so far, not much attention has been paid to cash halophyte crop (Pessarakli et al 2012).…”

Section: Nitrogen Use Efficiencymentioning

confidence: 99%

Nitrogen Nutrition and Adaptation of Halophyte Chenopodium quinoa to Salt Stress

Tarek

Alshamy

Hussin

et al. 2021

Arab Universities Journal of Agricultural Sciences

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There is little evidence that the nitrogen nutrition supply at rates above or less than what is considered optimal in non-saline conditions improves growth and yield of halophyte crop cultivated under salt stress. Therefore, hypothesize of the present work was to find out the magnitude to which N could restore the harmful effects of salt stress on quinoa plants. A pot experiment was performed in greenhouse conditions to evaluate quinoa's response grown under water salinity treatments (0.0 & 200 mM NaCl) when nitrogen nutrition rates were limiting (50ppm), adequate (250 ppm), and excess (450 ppm) to guide proper application rate of nitrogen fertilizer under salinity stress. The results indicated that, salinity caused a significant decrease in the vegetative growth of the plant. Consequently, all vegetative measurements were negatively affected. As a result, the seed yield decreased to more than 50%. The application of a moderate level of nitrogen (250 ppm) caused a significant ameliorative effect on seed yield by 126% under non saline conditions and 34.5 % under saline conditions compared to the low nitrogen level. The results did not improve any further with the application of a higher level of nitrogen. These results indicate that applying (N) in adequate may improve most traits and prove to be a physiological treatment to increase resistance against the negative effects of salt stress in quinoa.

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“…At present, more than 20% of the arable land in the world has been affected by salt to various extents, which poses a severe threat to global sustainable development of agriculture [3]. In China, over 33.3 million ha of lands are salinized, nearly 13.3 million ha of which can be potentially improved for crop production, including 0.67 million ha saline lands that are located in the coastal area of Jiangsu Province [4]. The development and utilization of saline lands for agricultural production has become a national strategy to ensure food security in China [5].…”

Section: Introductionmentioning

confidence: 99%

“…Of all the salt-tolerant cultivation techniques, fertilizer management is one of the most important strategies [15]. Salt tolerance of rice (Oryza sativa L.) was significantly improved by appropriate fertilizer application under salt stress [4]. It was reported that nitrogen fertilizer increased oat grain yield by improving photosynthesis and nitrogen accumulation under salt stress [16].…”

Section: Introductionmentioning

confidence: 99%

“…under salt stress [18]. The possible mechanisms for how fertilizers could promote growth in salt conditions can be summarized as both antioxidant capacity and osmotic adjustment ability were enhanced by fertilizer application, which maintained higher water content and chlorophyll content of leaves and resulted in photosynthetic rate promoted [4,16]. Although different types of fertilizers have been proved to be able to enhance crop growth and relieve salt stress, associated physiological mechanism is still not fully understood.…”

Section: Introductionmentioning

confidence: 99%

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Different Types of Fertilizers Enhanced Salt Resistance of Oat and Associated Physiological Mechanisms in Saline Soils

Zhu

et al. 2022

Agronomy

Self Cite

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Soil salinization is more aggravating than ever before; suitable fertilizer application is essential for promoting crop growth and productivity in saline soils. A field experiment was conducted to study the effects of different types of fertilizers on oat (Avena sativa L.) growth and associated physiological mechanism in saline soils. Two oat varieties (V1 = Baiyan 2 and V2 = Baiyan 7) were used and four fertilizer treatments (T1 = control, T2 = nitrogen fertilizer, T3 = Giza Fertile fertilizer, T4 = Powder fertilizer) were evaluated in this study. The results showed that fertilizer treatments significantly improved plant growth and associated physiological traits, grain yield, forage yield, and forage quality of both oat varieties. Plant height, leaf area, superoxide dismutase, peroxidase, proline, forage yield, panicles, spikelets per panicle, grain weight, and grain yield were significantly increased by fertilizer application, and the maximum values were all produced under T2 (nitrogen fertilizer). But the highest values of catalase, soluble sugar, and crude fat were observed under T4 (powder fertilizer). On the contrary, malondialdehyde and crude fiber were significantly decreased by fertilizer application, and the highest value was recorded under T2 and T4, respectively. V2 was superior in plant growth, grain yield, forage yield, and forage quality than V1. This study suggested that nitrogen fertilizer was superior in promoting growth, biomass yield and grain yield production, and Powder fertilizer was better in enhancing forage quality of oat in saline soils.

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Nitrogen management enhanced plant growth, antioxidant ability, and grain yield of rice under salinity stress

Cited by 17 publications

References 51 publications

Ameliorative Effects of Nitrogen Application on Vegetative Growth and Productivity in Genotypes of Ragi (Eleusine coracana Gaertn.) under Saline Conditions

Ameliorative Effects of Nitrogen Application on Vegetative Growth and Productivity in Genotypes of Ragi (Eleusine coracana Gaertn.) under Saline Conditions

Nitrogen Nutrition and Adaptation of Halophyte Chenopodium quinoa to Salt Stress

Different Types of Fertilizers Enhanced Salt Resistance of Oat and Associated Physiological Mechanisms in Saline Soils

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