Nitrogen Acquisition and Allocation Traits in Peanuts with Different Nodulation Efficiency Revealed by the 15N Tracer Analysis

Guo, Pei; Shi, Xiaolong; Ren, Jingyao; Chen, Chong; Zhang, Ping; Zhao, Xinhua; Jiang, Chunji; Yu, Haiqiu

doi:10.1007/s42729-024-01823-9

J Soil Sci Plant Nutr

2024

DOI: 10.1007/s42729-024-01823-9

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Nitrogen Acquisition and Allocation Traits in Peanuts with Different Nodulation Efficiency Revealed by the 15N Tracer Analysis

Pei Guo,

Xiaolong Shi,

Jingyao Ren

et al.

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2024

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Optimized nitrogen application ameliorates the photosynthetic performance and yield potential in peanuts as revealed by OJIP chlorophyll fluorescence kinetics

Guo,

Ren,

Shi

et al. 2024

BMC Plant Biol

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Background Nitrogen (N) is a crucial element for increasing photosynthesis and crop yields. The study aims to evaluate the photosynthetic regulation and yield formation mechanisms of different nodulating peanut varieties with N fertilizer application. Method The present work explored the effect of N fertilizer application rates (N0, N45, N105, and N165) on the photosynthetic characteristics, chlorophyll fluorescence characteristics, dry matter, N accumulation, and yield of four peanut varieties. Results The results showed that N application increased the photosynthetic capacity, dry matter, N accumulation, and yield of peanuts. The measurement of chlorophyll a fluorescence revealed that the K-phase, J-phase, and I-phase from the OJIP curve decreased under N105 treatment compared with N0, and W OI , ET 0 /CS M , RE 0 /CS M , ET 0 /RC, RE 0 /RC, φPo, φEo, φRo, and Ψ0 increased, whereas V J , V I , W K , ABS/RC, TR 0 /RC, DI 0 /RC, and φDo decreased. Meanwhile, the photosystem activity and electron transfer efficiency of nodulating peanut varieties decreased with an increase in N (N165). However, the photosynthetic capacity and yield of the non-nodulating peanut variety, which highly depended on N fertilizer, increased with an increase in N. Conclusion Optimized N application (N105) increased the activity of the photosystem II (PSII) reaction center, improved the electron and energy transfer performance in the photosynthetic electron transport chain, and reduced the energy dissipation of leaves in nodulating peanut varieties, which is conducive to improving the yield. Nevertheless, high N (N165) had a positive effect on the photosystem and yield of non-nodulating peanut. The results provide highly valuable guidance for optimizing peanut N management and cultivation measures.

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Optimized nitrogen application ameliorates the photosynthetic performance and yield potential in peanuts as revealed by OJIP chlorophyll fluorescence kinetics

Guo,

Ren,

Shi

et al. 2024

BMC Plant Biol

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Nitrogen Acquisition and Allocation Traits in Peanuts with Different Nodulation Efficiency Revealed by the 15N Tracer Analysis

Cited by 1 publication

References 60 publications

Optimized nitrogen application ameliorates the photosynthetic performance and yield potential in peanuts as revealed by OJIP chlorophyll fluorescence kinetics

Optimized nitrogen application ameliorates the photosynthetic performance and yield potential in peanuts as revealed by OJIP chlorophyll fluorescence kinetics

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