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学者姓名：王文斐
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Abstract ：
The ratoon rice cultivation system exhibits high-yield and low-emission characteristics, with carbon (C) sequestration and emissions in paddy fields being influenced by rhizosphere microorganisms. However, the relationship between these effects and microbial nutritional strategies remains unclear. This study utilized four rice varieties with distinct growth durations as materials to analyze the effects and mechanisms of yield formation, rhizosphere microbial dynamics, and net ecosystem carbon budget (NECB) in the main crop (MC), ratoon season rice (RSR), and single mid-late rice (LR) during 2023-2024. Results showed that the daily average yield of ratoon rice (MC+RSR) increased by 77.65 %-86.82 % compared to LR. Analysis of photosynthate allocation revealed that RSR exhibited 72.09 % and 77.35 % reductions in rhizodeposition compared to MC and LR, respectively. Analysis of microbial trophic strategies revealed a 55.54 % and 32.36 % increase in autotroph abundance in RSR relative to MC and LR. Investigation of greenhouse gas intensity (GHGI) and NECB confirmed that the ratoon rice system (MC+RSR) reduced its daily carbon emission index by 52.74 %-56.08 % compared to LR. The MC+RSR system acted as a carbon sink, sequestering 3.12-10.47 t CO2-eq ha-1 , whereas LR functioned as a carbon source, emitting 3.08-4.48 t CO2-eq ha-1 . Therefore, ratoon rice system extends the utilization period of light and thermal resources, enhances yield, and achieves carbon budget surplus. The increase in autotrophic bacteria and corresponding decrease in heterotrophic bacteria represent a critical rhizosphere microecological resilience response to soil carbon sequestration and emission reduction.
Keyword ：
Carbon balance surplus Carbon balance surplus Emission reduction Emission reduction Rhizosphere microecology Rhizosphere microecology Rice ratooning Rice ratooning
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| GB/T 7714 | Li, Jinying , Xu, Hailong , Qin, Bin et al. Mechanisms of high yield formation and carbon budget surplus in ratoon rice and its rhizosphere microecological responses [J]. | FIELD CROPS RESEARCH , 2025 , 333 . |
| MLA | Li, Jinying et al. "Mechanisms of high yield formation and carbon budget surplus in ratoon rice and its rhizosphere microecological responses" . | FIELD CROPS RESEARCH 333 (2025) . |
| APA | Li, Jinying , Xu, Hailong , Qin, Bin , Zhang, Bianhong , Chen, Mengying , Weng, Peiying et al. Mechanisms of high yield formation and carbon budget surplus in ratoon rice and its rhizosphere microecological responses . | FIELD CROPS RESEARCH , 2025 , 333 . |
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The perennial rice (PR) cultivation system is an ecologically sustainable and environmentally-friendly approach that offers enhanced resource efficiency, thereby presenting the potential to supplant traditional double-cropping rice (DR) and ratoon rice (RR) systems in China's southeastern region. However, there is still a dearth of comprehensive studies examining the yield, carbon and nitrogen footprints, economic benefits, and carbon budget balance associated with PR. This study systematically compares the performance of PR, DR, and RR cultivation systems in terms of yield, direct greenhouse gas (GHG) emissions, carbon and nitrogen footprint, net ecological-economic benefits (NEEB), and net ecosystem carbon balance (NECB), based on field trials conducted from 2022 to 2024. The results from three years of research indicated that the annual yield of PR was comparable to that of DR and RR. However, PR exhibited a significant reduction in direct GHG emissions, which were 21.7 %-25.91 % lower than those of DR. Similarly, the carbon and nitrogen footprint of PR were reduced by 19.34 %-25.87 % and 7.12 %-9.17 %, respectively, while the carbon and nitrogen footprint per unit yield decreased by 16.76 %-28.02 % and 7.29 %-9.17 %. Additionally, the annual energy input of PR was reduced by 26.74 % and 2.10 % compared to DR and RR. In terms of economic benefits, the NEEB of PR was 83.24 % higher than that of DR and 10.85 % greater than that of RR. Furthermore, NECB of PR was significantly higher than that of DR and RR, with increases ranging from 15.77 % to 37.87 % and from 15.30 % to 43.45 %, respectively. These advantages were primarily attributed to reductions in methane emissions (CH4), ammonia volatilization (NH3), and lower indirect agricultural inputs. The findings suggest that despite the comparable yield of PR to that of DR and RR over the three-year trial, its significant advantages in terms of carbon and nitrogen footprints, energy input, and economic benefits indicate that PR represents a highly promising sustainable agricultural model for the southeastern region of China. It has the potential to maintain high productivity while reducing resource inputs and environmental pressures. In the future, further optimization of PR breeding and cultivation management may result in higher and more stable yields while maintaining low energy inputs and environmental costs.
Keyword ：
Carbon and nitrogen footprint Carbon and nitrogen footprint Net ecological-economic benefits Net ecological-economic benefits Perennial rice Perennial rice Rice cultivation systems Rice cultivation systems
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| GB/T 7714 | Xu, Hailong , Zhang, Bianhong , Qin, Bin et al. Evaluating the sustainability potential of perennial rice in southeastern China by comparing yield, environmental impacts and economic benefits [J]. | AGRICULTURE ECOSYSTEMS & ENVIRONMENT , 2025 , 390 . |
| MLA | Xu, Hailong et al. "Evaluating the sustainability potential of perennial rice in southeastern China by comparing yield, environmental impacts and economic benefits" . | AGRICULTURE ECOSYSTEMS & ENVIRONMENT 390 (2025) . |
| APA | Xu, Hailong , Zhang, Bianhong , Qin, Bin , Li, Jinying , Lan, Chaojie , Zou, Jingnan et al. Evaluating the sustainability potential of perennial rice in southeastern China by comparing yield, environmental impacts and economic benefits . | AGRICULTURE ECOSYSTEMS & ENVIRONMENT , 2025 , 390 . |
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Pseudostellaria heterophylla (P. heterophylla) is a perennial herb that has been used as a medicinal food for hundreds of years in China. Viral infections during the production of P. heterophylla severely reduce the yield and quality. Turnip mosaic virus (TuMV) is a common and highly variable viral pathogen in P. heterophylla plants. A high-efficiency diagnostic system is urgently needed to control and alleviate TuMV infection. However, the current detection methods still have various deficiencies that limit their field application. Here, a cell-free expression system relying on nucleic acid sequence-based amplification (NASBA) with toehold switch sensors and a visual reporter for color change was developed and introduced for TuMV detection in P. heterophylla. After designing and screening the approach, the selected sensitive sensor was able to detect 1 pM TuMV RNA fragments within 40 min, and the detection limit was less than 10 fM if the time was extended to 90 min. The sensor exhibited high specificity, with no cross-reactivity detected when tested against cucumber mosaic virus, another prevalent viral pathogen in P. heterophylla. In addition, in in-field samples, TuMV was successfully detected directly from both purified and crude RNA extracts in approximately 3 h. This cell-free synthetic biology tool is rapid, sensitive, specific and field-applicable and provides high-capacity and low-cost diagnostics for TuMV in P. heterophylla, as well as various viruses in herbs and other host plants.
Keyword ：
Cell-free expression system Cell-free expression system NASBA NASBA Pseudostellaria heterophylla Pseudostellaria heterophylla Toehold switch sensor Toehold switch sensor Turnip mosaic virus Turnip mosaic virus
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| GB/T 7714 | Qiu, Yun , Zhang, Shuxin , Tan, Aidi et al. Detection of TuMV by a toehold switch sensor coupled with NASBA amplification in Pseudostellaria heterophylla [J]. | PLANT METHODS , 2025 , 21 (1) . |
| MLA | Qiu, Yun et al. "Detection of TuMV by a toehold switch sensor coupled with NASBA amplification in Pseudostellaria heterophylla" . | PLANT METHODS 21 . 1 (2025) . |
| APA | Qiu, Yun , Zhang, Shuxin , Tan, Aidi , Cai, Qiang , Chen, Kezhi , Yang, Kaiwen et al. Detection of TuMV by a toehold switch sensor coupled with NASBA amplification in Pseudostellaria heterophylla . | PLANT METHODS , 2025 , 21 (1) . |
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Rice ratooning cultivation refers to secondary production from the stubble left after the harvest of the main crop (MC). Besides providing additional yield, ratooning is known to affect grain quality. Here, we conducted a meta-analysis of grain quality traits between ratoon season crop (RC) and MC. The results showed that the overall grain quality of RC was higher than that of MC. Ratooning improved milling traits by increasing the milled rice rate (MRR) and head rice rate (HRR) and enhanced grain appearance by reducing chalkiness. Furthermore, ratooning had a positive impact on alkali spreading value (ASV) and amylose content (AC) but a negative influence on gel consistency (GC), which markedly affects cooking and sensory quality. Subgroup analysis showed that stubble height influenced the AC of RC, while planting region was a major factor regulating most grain properties. Meta-regression analysis suggested that latitude, precipitation, and temperature played important roles in rice quality, particularly in relation to milling parameters. In addition, we compared the grain quality of RC and the late-season crop (LC) with synchronized heading time. Negative trends were observed in brown rice rate (BRR) and protein content (PC), while planting region and rice variety were revealed as factors influencing chalkiness and HRR. Overall, our findings indicate that ratooning has positive impacts on grain quality and uncover the relationships between environmental and agronomic factors and their effects on quality traits, which will lay the foundation for future breeding strategies and optimize cultivation management across growth regions.
Keyword ：
chalkiness chalkiness main crop (MC) main crop (MC) meta-analysis meta-analysis milling traits milling traits ratoon season crop (RC) ratoon season crop (RC) rice quality rice quality
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| GB/T 7714 | Yang, Xuelian , Ruan, Zhijie , Chen, Kezhi et al. Meta-analysis reveals that grain quality is improved in ratoon season crop compared with main crop [J]. | FRONTIERS IN PLANT SCIENCE , 2025 , 16 . |
| MLA | Yang, Xuelian et al. "Meta-analysis reveals that grain quality is improved in ratoon season crop compared with main crop" . | FRONTIERS IN PLANT SCIENCE 16 (2025) . |
| APA | Yang, Xuelian , Ruan, Zhijie , Chen, Kezhi , Gu, Shiting , Wang, Yuchao , Cai, Qiang et al. Meta-analysis reveals that grain quality is improved in ratoon season crop compared with main crop . | FRONTIERS IN PLANT SCIENCE , 2025 , 16 . |
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Convergent and divergent evolution lead to plants with stronger adaptability to higher temperatures, thus averting crop biomass yield reductions. NADP-dependent malate dehydrogenase (NADP-MDH) is a redox-regulated enzyme that catalyzes the reversible reduction of oxaloacetate to malate. The sole NADP-MDH gene in rice, Os-MDH8.2, is expressed in mesophyll cells of photosynthetic organs and various sink tissues. However, it is unknown whether NADP-MDH functions in heat stress in rice. We characterized a transgenic OsMDH8.2 overexpression line under thermal stress treatment (40 degrees C). The transgenic line exhibited better adaptability to heat stress than the wild type; it better maintained biomass and a lower surface temperature through stomatal closure, and photosynthetic activity was less affected. OsMDH8.2 was found to affect peroxidase activity by reducing the hydrogen peroxide content in flag leaves after 3 and 5 days of thermal stress. Analysis results of OsMDH8.2 knockout lines confirmed that OsMDH8.2 contributes to heat tolerance. Transcriptome and metabolome analyses demonstrated that OsMDH8.2 plays a key role in energy homeostasis by reducing tricarboxylic acid cycle activity while inducing the glyoxylate cycle to produce more energy, and by regulating amino acid metabolism to rescue heat-stress damage. Collectively, these results suggest that OsMDH8.2 enhances glyoxylate cycle efficiency, resulting in lower carbon dioxide release into the environment through stomatal closure, providing an excellent strategy for improving plant heat tolerance through genetic engineering.
Keyword ：
Adaptability Adaptability Key Heat temperature Key Heat temperature OsMDH8.2 OsMDH8.2 Rice Rice Stoma Stoma
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| GB/T 7714 | Jiang, Min , Chen, Zhang , Ansah, Ebenezer Ottopah et al. Rice NADP-dependent malate dehydrogenase gene OsMDH8.2 is involved in heat tolerance [J]. | FUNDAMENTAL RESEARCH , 2025 , 5 (5) : 2037-2044 . |
| MLA | Jiang, Min et al. "Rice NADP-dependent malate dehydrogenase gene OsMDH8.2 is involved in heat tolerance" . | FUNDAMENTAL RESEARCH 5 . 5 (2025) : 2037-2044 . |
| APA | Jiang, Min , Chen, Zhang , Ansah, Ebenezer Ottopah , Peng, Wangmenghan , Huang, Lifeng , Xiong, Fei et al. Rice NADP-dependent malate dehydrogenase gene OsMDH8.2 is involved in heat tolerance . | FUNDAMENTAL RESEARCH , 2025 , 5 (5) , 2037-2044 . |
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Rice paddies are a major, persistent source of atmospheric methane (CH4), emission rates depend on the partitioning of photosynthate carbon between the rice plant and the rhizosphere microbiome. Although ratoon season rice (RR) is shown to emit far less CH4 than main-crop rice (MC), the mechanisms have remained unresolved. This work conducts a 2-year field experiment in which RR is compared with MC and with late rice (LR) synchronized to the RR heading stage. Relative to MC and LR, RR lowers daily CH4 flux by 91%, raises daily grain yield by 34%-57%, and increases net economic return by 90%-136%. Mechanistically, 13C-labelling reveals that RR diverted more newly fixed carbon to the grain and less to the rhizosphere, thereby restricting acetate availability for methanogens. Rhizosphere metagenomics show reduced abundance of Methanobacteriaceae and down-regulation of methanogenic genes in RR. This carbon-reallocation pattern is underpinned by an abscisic acid (ABA)-mediated interaction between OsCIPK2 and OsSWEET1A, which simultaneously curtailed carbon efflux from roots and enhanced grain filling. This study is the first to establish a comprehensive framework of "ABA regulation-carbon allocation-microbial function-emission reduction and efficiency enhancement." It provides targetable strategies for carbon allocation and microbial management within climate-smart rice farming systems.
Keyword ：
distribution of photosynthate distribution of photosynthate methane emissions methane emissions methanogenic bacteria methanogenic bacteria ratoon season rice ratoon season rice yield yield
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| GB/T 7714 | Zou, Jingnan , Xu, Hailong , Qin, Bin et al. Ratoon Season Rice Reduces Methane Emissions by Limiting Acetic Acid Transport to the Rhizosphere and Inhibiting Methanogens [J]. | ADVANCED SCIENCE , 2025 . |
| MLA | Zou, Jingnan et al. "Ratoon Season Rice Reduces Methane Emissions by Limiting Acetic Acid Transport to the Rhizosphere and Inhibiting Methanogens" . | ADVANCED SCIENCE (2025) . |
| APA | Zou, Jingnan , Xu, Hailong , Qin, Bin , Lan, Chaojie , Li, Jinying , Zhang, Bianhong et al. Ratoon Season Rice Reduces Methane Emissions by Limiting Acetic Acid Transport to the Rhizosphere and Inhibiting Methanogens . | ADVANCED SCIENCE , 2025 . |
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Jacalin-related lectins (JALs) are a unique group of plant lectins derived from the jacalin protein family, which play important roles in plant defense responses. JAL30/PBP1 (PYK10 binding protein 1) interacts with inactive PYK10, exerting negative regulatory control over the size of the PYK10 complex, which is formed and activated upon insect or pathogen invasion. However, the precise interplay between JAL30 and other components remains elusive. In this study, we found JAL30 as a nucleocytoplasmic protein, but no obvious phenotype was observed in jal30-1 single mutant. Through immunoprecipitation (IP) enrichment combined with liquid chromatographytandem mass spectrometry (LC-MS/MS), dozens of new JAL30 interacting proteins were found in addition to several reported ones. Gene Ontology (GO) analysis revealed that these interacting proteins were highly related to the wounding and bacterial stimuli, suggesting their potential involvement in the jasmonate (JA) response. Importantly, the expression of JAL30 was induced by MeJA treatment, further highlighting its relevance in plant defense mechanisms. A novel JAL30 interacting protein, ESM1, was identified and its interaction with JAL30 was confirmed by Co-immunoprecipitation. Moreover, ESM1 was found as an O-GlcNAcylated protein, suggesting that JAL30 may possess glycosylated protein binding ability, particularly in O-GlcNAcylated protein and peptide recognition. Overall, our study provides valuable insights into the interacting protein network and biological function of JAL30, demonstrates the interaction between JAL30 and ESM1, and uncovers the potential significance of JAL30 in plant defense system, potentially through its association with PYK10 complex or JA response. Significance: The biological functions of lectin proteins, including defense responses, immunity responses, signal transduction, have been well studied. Lectin proteins were also utilized to enrich glycosylated proteins for their specific carbohydrates binding capability. Jacalin-related lectins (JALs) were found to involve in plant defense mechanism. However, it is not yet clear whether JALs could use for enrichment of glycosylated proteins. In this study, we used label-free quantification method to identify interacting proteins of JAL30. A novel interacting protein, ESM1, as an O-GlcNAcylated protein was found. ESM1 has been reported to take part in defense against insect herbivory. Therefore, our findings provided experimental evidence to confirm that JALs have potential to be developed as the bio-tools to enrich glycosylated proteins. Finally, our data not only illustrated the vital biological role of JALs in plants, but also verified unique function of JAL30 in recognizing O-GlcNAcylated proteins.
Keyword ：
Arabidopsis Arabidopsis ESM1 ESM1 Jacalin related lectin Jacalin related lectin JAL30 JAL30 O-GlcNAcylation O-GlcNAcylation
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| GB/T 7714 | Bian, Jianghu , Chen, Rongqing , Gu, Shiting et al. Quantitative proteomics analysis identified new interacting proteins of JAL30 in Arabidopsis [J]. | JOURNAL OF PROTEOMICS , 2024 , 297 . |
| MLA | Bian, Jianghu et al. "Quantitative proteomics analysis identified new interacting proteins of JAL30 in Arabidopsis" . | JOURNAL OF PROTEOMICS 297 (2024) . |
| APA | Bian, Jianghu , Chen, Rongqing , Gu, Shiting , Wang, Wenfei , Yang, Xuelian . Quantitative proteomics analysis identified new interacting proteins of JAL30 in Arabidopsis . | JOURNAL OF PROTEOMICS , 2024 , 297 . |
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Ratoon rice utilizes the axillary buds sprouting from the remaining stubble of the main crop after harvest to form panicles, enabling a second harvest. However, mechanized harvesting often resulted in damage to the rice stubbles in the rolling zone, potentially leading to reduced yield. Enhancing the number of tillers in the rolling zone through optimized agronomic measures was crucial for achieving higher yield. However, research on water and fertilizer management corresponding to low stubble ratoon rice under mechanized harvesting was limited. A two-factor experiment was conducted to assess the impacts of water regimes (flooded, FL; alternate wetting and drying, AWD) and nitrogen fertilizer management (0 kg N ha-1, CK; Tiller promotion fertilizer 90 kg N ha-1, N; Delayed nitrogen application: Tiller promotion fertilizer 60 kg N ha-1 + Booting stage fertilizer 30 kg N ha-1, SN) on the yield formation, greenhouse gas emissions, and carbon footprint of low stubble ratoon rice. The results indicated significant effects of water regimes and nitrogen fertilizer on yield. Compared to N-FL, SN-AWD significantly increased average annual yield by 25.39%. The increment in tillers in the rolling zone ranged from 36.58% to 72.72% under AWD compared to flooding, and SN-AWD significantly increased the ratoon ability of the basal first and second nodes compared to N-FL. Soil quality index and ecosystem multifunctionality under SN-AWD increased by 32.37% and 9.05 times, respectively, compared to N-FL, resulting in significant increases in root length, root surface area, and root volume, consequently enhancing pre-anthesis and post-anthesis dry matter accumulation and ultimately improving yield. Although N2O emissions increased under SN-AWD compared to N-FL, CH4 cumulative emissions decreased significantly by 37.86% on average over two years, leading to a 23.02% reduction in total greenhouse gas emissions and a 38.62% reduction in carbon footprint. SN-AWD attained maximum net ecosystem economic benefit (NEEB), increasing by 35.42% compared to N-FL. Overall, the comprehensive analysis suggested that SN-AWD was a sustainable water and fertilizer management approach beneficial for balancing ratoon season yields, environmental footprint, and economic benefits. © 2024, The Authors. All rights reserved.
Keyword ：
Carbon footprint Carbon footprint Ecosystems Ecosystems Emission control Emission control Floods Floods Gas emissions Gas emissions Greenhouse gases Greenhouse gases Harvesting Harvesting Nitrogen fertilizers Nitrogen fertilizers Sustainable development Sustainable development Water conservation Water conservation
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| GB/T 7714 | Lan, Chaojie , Zou, Jingnan , Xu, Hailong et al. Enhanced Strategies for Water and Fertilizer Management to Optimize Yields and Promote Environmental Sustainability in the Mechanized Harvesting of Ratoon Rice in Southeast China [J]. | SSRN , 2024 . |
| MLA | Lan, Chaojie et al. "Enhanced Strategies for Water and Fertilizer Management to Optimize Yields and Promote Environmental Sustainability in the Mechanized Harvesting of Ratoon Rice in Southeast China" . | SSRN (2024) . |
| APA | Lan, Chaojie , Zou, Jingnan , Xu, Hailong , Qin, Bin , Li, Jinying , Chen, Ting et al. Enhanced Strategies for Water and Fertilizer Management to Optimize Yields and Promote Environmental Sustainability in the Mechanized Harvesting of Ratoon Rice in Southeast China . | SSRN , 2024 . |
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Ratoon rice utilizes the axillary buds sprouting from the remaining stubble of the main crop after harvest to form panicles, enabling a second harvest. However, mechanized harvesting often resulted in damage to the rice stubbles in the rolling zone, potentially leading to reduced yield. Enhancing the number of tillers in the rolling zone through optimized agronomic measures was crucial for achieving higher yield. However, research on water and fertilizer management corresponding to low stubble ratoon rice under mechanized harvesting was limited. A two-factor experiment was conducted to assess the impacts of water regimes (flooded; alternate wetting and drying) and nitrogen fertilizer management (0 kg N ha(-1); Tiller promotion fertilizer 90 kg N ha(-1); Split nitrogen application: Tiller promotion fertilizer 60 kg N ha(-1) + Booting stage fertilizer 30 kg N ha(-1)) on the yield formation, greenhouse gas emissions, and carbon footprint of low stubble ratoon rice. The results indicated significant effects of water regimes and nitrogen fertilizer on yield. Compared to single application of tillerpromoting fertilizer coupled with continuous flooding (N-FL), Split application of tiller-promoting fertilizer coupled with alternate wetting and drying (SN-AWD) significantly increased average annual yield by 25.4%. SNAWD significantly increased the ratoon ability of the basal first and second nodes compared to N-FL. The soil quality index and ecosystem multifunctionality under SN-AWD increased by an average of 32.37% and 10.16 times, respectively, compared to N-FL. This increase resulted in significant enhancements in root length and root surface area, consequently improving pre-anthesis and post-anthesis dry matter accumulation and ultimately enhancing yield. Although N2O emissions increased under SN-AWD compared to N-FL, CH4 cumulative emissions decreased significantly by 37.86% on average over two years, leading to a 23.02% reduction in total greenhouse gas emissions and a 38.62% reduction in carbon footprint per unit grain. SN-AWD attained maximum net ecosystem economic benefit (NEEB), increasing by 35.42% compared to N-FL. Overall, the comprehensive analysis suggested that SN-AWD was a sustainable water and fertilizer management approach beneficial for balancing ratoon season yields, environmental footprint, and economic benefits.
Keyword ：
Axillary bud Axillary bud Carbon footprint Carbon footprint Greenhouse gas emissions Greenhouse gas emissions Ratoon rice Ratoon rice Yield Yield
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| GB/T 7714 | Lan, Chaojie , Zou, Jingnan , Xu, Hailong et al. Enhanced strategies for water and fertilizer management to optimize yields and promote environmental sustainability in the mechanized harvesting of ratoon rice in Southeast China [J]. | AGRICULTURAL WATER MANAGEMENT , 2024 , 302 . |
| MLA | Lan, Chaojie et al. "Enhanced strategies for water and fertilizer management to optimize yields and promote environmental sustainability in the mechanized harvesting of ratoon rice in Southeast China" . | AGRICULTURAL WATER MANAGEMENT 302 (2024) . |
| APA | Lan, Chaojie , Zou, Jingnan , Xu, Hailong , Qin, Bin , Li, Jinying , Chen, Ting et al. Enhanced strategies for water and fertilizer management to optimize yields and promote environmental sustainability in the mechanized harvesting of ratoon rice in Southeast China . | AGRICULTURAL WATER MANAGEMENT , 2024 , 302 . |
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Crop perennialization has garnered global attention recently due to its role in sustainable agriculture. However, there is still a lack of detailed information regarding perennial rice's regenerative characteristics and physiological mechanisms in crop ratooning systems with different rice stubble heights. In addition, the response of phytohormones to varying stubble heights and how this response influences the regenerative characteristics of ratoon rice remains poorly documented. Here, we explored the regenerative characteristics and physiological mechanisms of an annual hybrid rice, AR2640, and a perennial rice, PR25, subjected to different stubble heights (5, 10, and 15 cm). The response of phytohormones to varying stubble heights and how this response influences the regenerative characteristics of ratoon rice were also investigated. The results show that PR25 overwintered successfully and produced the highest yield, especially in the second ratoon season, mainly due to its extended growth duration, higher number of mother stems, tillers at the basal nodes, higher number of effective panicles, and heavier grain weight when subjected to lower stubble heights. Further analysis revealed that PR25 exhibited a higher regeneration rate from the lower-position nodes in the stem with lower stubble heights. this was primarily due to the higher contents of phytohormones, especially auxin (IAA) and gibberellin (GA3) at an early stage and abscisic acid (ABA) at a later stage after harvesting of the main crop. Our findings reveal how ratoon rice enhances performance based on different stubble heights, which provides valuable insights and serves as crucial references for delving deeper into cultivating high-yielding perennial rice.
Keyword ：
basal tillering nodes basal tillering nodes endogenous hormones endogenous hormones perennial rice perennial rice ratoon crop ratoon crop regeneration characteristics regeneration characteristics
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| GB/T 7714 | Guo, Chunlin , Lin, Weiwei , Gao, Wujie et al. Physiological Properties of Perennial Rice Regenerating Cultivation in Two Years with Four Harvests [J]. | PLANTS-BASEL , 2023 , 12 (22) . |
| MLA | Guo, Chunlin et al. "Physiological Properties of Perennial Rice Regenerating Cultivation in Two Years with Four Harvests" . | PLANTS-BASEL 12 . 22 (2023) . |
| APA | Guo, Chunlin , Lin, Weiwei , Gao, Wujie , Lan, Chaojie , Xu, Hailong , Zou, Jingnan et al. Physiological Properties of Perennial Rice Regenerating Cultivation in Two Years with Four Harvests . | PLANTS-BASEL , 2023 , 12 (22) . |
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