Nitrogen Modulates Grain Yield, Nitrogen Metabolism, and Antioxidant Response in Different Rice Genotypes

Liao, Gaoxin; Yang, Yubing; Xiao, Wuming; Mo, Zhaowen

doi:10.1007/s00344-022-10684-4

Cited by 14 publications

(7 citation statements)

References 52 publications

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“…POD is an antioxidant enzyme that scavenges excess ROS in plants, reducing injury caused by adversity. In a previous study, the increased application of nitrogen fertilizer was seen to regulate the activity of POD, and reduce the MDA content of rice under high nitrogen conditions [11], which is consistent with the results of this paper. Gelaw discovered that nitrogen can enhance plant tolerance to water scarcity by increasing the activity of photosynthetic mechanisms and antioxidant enzymes [13].…”

Section: Effect Of Nitrogen On Ss Sps Inv Pod Activity and Mda Under ...supporting

confidence: 92%

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Nitrogen Addition Mitigates Drought by Promoting Soybean (Glycine Max (Linn.) Merr) Flowering and Podding and Affecting Related Enzyme Activities

Li,

Zhang,

Liu

et al. 2024

Agriculture

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Drought at the flower and pod stage, which is the most moisture-sensitive stage of soybean development, is the main cause of yield loss in soybean. Nitrogen is a vital nutrient for soybeans. The objective of this study was to assess the potential of post-drought nitrogen fertilization at the soybean (Heihe 45) pod stage to (1) reduce pod shedding and increase yield, and (2) elucidate the mechanisms by which nitrogen fertilization regulates soybean growth under drought stress. The pot experiment was designed with two moisture levels and three nitrogen levels, resulting in a total of six treatments. The results show that nitrogen reduces cellular oxidation by regulating key enzymes of sucrose metabolism, such as sucrose synthase and sucrose phosphate synthase; and regulates cellulase to reduce shedding and mitigate drought. Comparison of low and high nitrogen conditions under drought conditions showed that the number of flowers and pods in soybean increased by 30% and 32.94%, respectively, malondialdehyde content decreased by 24%, cellulase activity in flowers and pods decreased by 15.07% and 12.31%, respectively, and yields increased by 29.98% under high nitrogen conditions. The high nitrogen treatment performed optimally and the differences between treatments reached the significant level.

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Section: Effect Of Nitrogen On Ss Sps Inv Pod Activity and Mda Under ...supporting

confidence: 92%

“…Additionally, it can act as a stress ameliorator for plants [9]. Nitrogen application can improve sugar metabolism [10] and antioxidant capacity [11], while reducing cellulase activity and MDA content [12]. This can lead to a reduction in the abscission of reproductive organs and an improvement in the drought tolerance of plants.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen Addition Mitigates Drought by Promoting Soybean (Glycine Max (Linn.) Merr) Flowering and Podding and Affecting Related Enzyme Activities

Li,

Zhang,

Liu

et al. 2024

Agriculture

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“…The application of nitrogen fertilizer significantly increased the contents of carbohydrate, oil, ash, and amylose in milled grains. Liao et al [36] concluded that nitrogen application regulated the grain yield, nitrogen metabolism, and antioxidant responses of different rice genotypes. Nitrogen, phosphorus, and potassium concentrations in milled rice grains of the studied varieties under different levels of nitrogen fertilizer varied significantly in both seasons.…”

Section: Resultsmentioning

confidence: 99%

“…Also, increasing the level of nitrogen fertilizer increased the available ammonium concentration in rice soil, which might enhance the uptake of nitrogen by rice plants, as well as increase the protein content. Moreover, Liao et al [36] found that N fertilizer application regulates rice yield by affecting yield formation and biomass accumulation and modulating the activities of enzymes involved in N metabolism, the antioxidant enzyme activity, and the content of malondialdehyde.…”

Section: Resultsmentioning

confidence: 99%

Nutritional Value and Grain Quality Characteristics of Different Improved Egyptian Rice Genotypes Under Nitrogen Fertilizer Levels

Alaskar,

Metwally,

Gharib

et al. 2024

Pol. J. Environ. Stud.

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A two-year field experiment was conducted to study the behavior of three improved Egyptian rice varieties under different rates of nitrogen fertilizer. The selected tested varieties were Sakha109 (Japonica type), Giza179 (Indica/Japonica Type), and Giza182 (Indica type). Giza179 was treated with the highest nitrogen rate and recorded the highest grain yield values. The studied varieties showed different behavior under the various nitrogen levels. Giza182 recorded a high grain yield with better nutritional value. Higher grain quality characteristics were obtained from Sakha109. Generally, increasing the nitrogen level up to 200 kg N/ha increased rice grain yield, hulling (%), milling (%), and head rice (%) as well as carbohydrate %, oil %, ash amylose %, nitrogen %, phosphorus %, potassium %, and protein % in milled rice grains.

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“…Functional leaf GS activity can be used as an indicator to determine the amount of nitrogen accumulation in rice accurately at each reproductive stage, whereas the NR, GS, and GOGAT activity at the heading stage can be used as an indicator to comprehensively evaluate the simultaneous improvement of rice yield and NUE. 46 Sun et al, 47 and Liao et al 48 reported that the activity of NR and GS affected rice yield. In 2019 and 2020, liquid fertilizers improved NR and GS activity in comparison with solid fertilizers (Fig.…”

Section: Discussionmentioning

confidence: 99%

Optimization of liquid fertilizer management improves grain yield, biomass accumulation, and nutrient uptake of late‐season indica fragrant rice

et al. 2023

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BackgroundThe use of liquid fertilizer is an effective measure to increase rice yield and nitrogen use efficiency. There has been a lack of information regarding the effects on the grain yield, biomass accumulation, and nutrient uptake in late‐season indica fragrant rice of split fertilizer application and of nitrogen management in liquid fertilizer application.ResultsA 2‐year field experiment was carried out during 2019 and 2020 with two fragrant rice cultivars grown under differing fertilizer management treatments. Results showed that the fertilization treatments affected the grain yield, yield components, biomass accumulation, and nutrient accumulation significantly. The mean nitrogen recovery efficiency with liquid fertilizer management was greater than in a control treatment corresponding to a practice commonly used by farmers (H2). The effects of nitrogen metabolism enzymes in the leaves of both rice cultivars were stronger with liquid fertilizer treatments than with H2. Grain yield was positively associated with the effective panicle number, spikelets per panicle, dry matter accumulation, N and K accumulation, and the nitrogen metabolism enzymes.ConclusionsOptimized liquid fertilizer management increases biomass accumulation, nitrogen utilization efficiency, and nitrogen metabolism. It stabilizes yields and increases the economic benefits of late‐season indica fragrant rice. © 2023 Society of Chemical Industry.

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Nitrogen Modulates Grain Yield, Nitrogen Metabolism, and Antioxidant Response in Different Rice Genotypes

Cited by 14 publications

References 52 publications

Nitrogen Addition Mitigates Drought by Promoting Soybean (Glycine Max (Linn.) Merr) Flowering and Podding and Affecting Related Enzyme Activities

Nitrogen Addition Mitigates Drought by Promoting Soybean (Glycine Max (Linn.) Merr) Flowering and Podding and Affecting Related Enzyme Activities

Nutritional Value and Grain Quality Characteristics of Different Improved Egyptian Rice Genotypes Under Nitrogen Fertilizer Levels

Optimization of liquid fertilizer management improves grain yield, biomass accumulation, and nutrient uptake of late‐season indica fragrant rice

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