Pub Date : 2023-12-02DOI: 10.1080/03650340.2023.2287751
Ruben Purroy Vasquez, Alberto A. Aguilar Lasserre, Ramiro Meza Palacios, Gregorio Fernández Lambert
In Mexico, corn is cultivated in small agroecosystems by rural farmers on communal lands. These farmers are economically vulnerable, and low yields from their plots affect both their economic and f...
{"title":"Artificial neural network (ANN) in forecasting of poverty line and economic-energetic efficiencies into the maize-based agroecosystems","authors":"Ruben Purroy Vasquez, Alberto A. Aguilar Lasserre, Ramiro Meza Palacios, Gregorio Fernández Lambert","doi":"10.1080/03650340.2023.2287751","DOIUrl":"https://doi.org/10.1080/03650340.2023.2287751","url":null,"abstract":"In Mexico, corn is cultivated in small agroecosystems by rural farmers on communal lands. These farmers are economically vulnerable, and low yields from their plots affect both their economic and f...","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138543271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-25DOI: 10.1080/03650340.2023.2283191
Mohammad Mofizur Rahman Jahangir, Md. Kamruzzaman, Jannatul Ferdous, Md. Safinur Rahman, Khandakar Rafiq Islam
Sustainable nitrogen (N) management represents the nitrogen-use efficiency (NUE) of crops associated with agricultural productivity. The NUE and sustainable N management index (SNMI) of different c...
{"title":"Integrating nitrogen fertilization with crop residues to improve nitrogen management in intensively managed cropping systems","authors":"Mohammad Mofizur Rahman Jahangir, Md. Kamruzzaman, Jannatul Ferdous, Md. Safinur Rahman, Khandakar Rafiq Islam","doi":"10.1080/03650340.2023.2283191","DOIUrl":"https://doi.org/10.1080/03650340.2023.2283191","url":null,"abstract":"Sustainable nitrogen (N) management represents the nitrogen-use efficiency (NUE) of crops associated with agricultural productivity. The NUE and sustainable N management index (SNMI) of different c...","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138543750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Organic waste generation in aquaculture worldwide requires circular economy approaches. The revalorization of wastes in the Chilean salmon industry could be a potential soil amendment. We investiga...
{"title":"Drying treatment for sludges of the Chilean salmon farming industry and its potential as an agricultural soil amendment","authors":"Andrés Pérez-San Martín, Germán Tortosa, Aixa González, Susana Cayunao, Gustavo Curaqueo","doi":"10.1080/03650340.2023.2282590","DOIUrl":"https://doi.org/10.1080/03650340.2023.2282590","url":null,"abstract":"Organic waste generation in aquaculture worldwide requires circular economy approaches. The revalorization of wastes in the Chilean salmon industry could be a potential soil amendment. We investiga...","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138532671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-21DOI: 10.1080/03650340.2023.2278320
Erdal Gönülal, Onur Hocaoğlu
Bioethanol is a climate-friendly alternative to conventional energy sources. This study was conducted to determine bioenergy potential of switchgrass cultivation in Central Anatolia where water sca...
{"title":"Bioethanol potential of switchgrass cultivars for rainfed and irrigated conditions in marginal lands","authors":"Erdal Gönülal, Onur Hocaoğlu","doi":"10.1080/03650340.2023.2278320","DOIUrl":"https://doi.org/10.1080/03650340.2023.2278320","url":null,"abstract":"Bioethanol is a climate-friendly alternative to conventional energy sources. This study was conducted to determine bioenergy potential of switchgrass cultivation in Central Anatolia where water sca...","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138507422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-21DOI: 10.1080/03650340.2023.2280548
Alemayehu Dabessa, Adane Arega, Feyera Takele
Soil acidity and poor soil fertility are major constraints that limit soybean productivity in Western Ethiopia. Thus, this study was conducted to identify the effect of starter nitrogen on soybean ...
{"title":"Response of soybean [Glycine max L. (Merrill)] to starter nitrogen in Western Ethiopia","authors":"Alemayehu Dabessa, Adane Arega, Feyera Takele","doi":"10.1080/03650340.2023.2280548","DOIUrl":"https://doi.org/10.1080/03650340.2023.2280548","url":null,"abstract":"Soil acidity and poor soil fertility are major constraints that limit soybean productivity in Western Ethiopia. Thus, this study was conducted to identify the effect of starter nitrogen on soybean ...","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138507420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-13DOI: 10.1080/03650340.2023.2278901
Marina Scalioni Vilela, Dalyse Toledo Castanheira, Rubens José Guimarães, Milene Alves de Figueiredo Carvalho, Tiago Teruel Rezende, Giovani Belutti Voltolini, Mauro Magalhães Leite Faria, Alisson André Vicente Campos
ABSTRACTSustainable cropping systems can enhance the development of young coffee plants under drought conditions. The objective of this study was to evaluate the behavior of coffee plants grown under different cover crops, soil conditioners, and fertilizers to reduce the effects of water scarcity. The treatments were the association of soil cover management (Urochloa decumbens, polyethylene film, and bare soil), fertilizers (conventional and controlled release), and soil conditioners (coffee husk, agricultural gypsum, water-retaining polymer, organic compost, and control). The assessments carried out were the growth, physiology, and anatomy of coffee plants and soil moisture and resistance to penetration. A multivariate analysis of the results was performed. The coffee plants grown with soil cover (Urochloa decumbens) and organic conditioners (coffee husk and organic compost) had better agronomic performance and higher soil moisture.KEYWORDS: Coffea arabica Lsoil coversoil conditionerdrought stresssustainable agriculture AcknowledgmentsThe authors would like to thank the Consórcio Pesquisa Café, the INCTCafé, the FAPEMIG, CAPES, CNPq, the Coffee Sector/UFLA, ICL América do Sul and Terra de Cultivo and Hydroplan for their support in this project.Disclosure statementNo potential conflict of interest was reported by the author(s).Supplementary materialSupplemental data for this article can be accessed online at https://doi.org/10.1080/03650340.2023.2278901.Additional informationFundingThis project was carried out with the support of the Consórcio Pesquisa Café, the INCTCafé, the FAPEMIG, CAPES, CNPq, the Coffee Sector/UFLA, ICL América do Sul and Terra de Cultivo and Hydroplan.
摘要可持续种植制度可以促进干旱条件下咖啡苗的生长发育。本研究的目的是评估不同覆盖作物、土壤调节剂和肥料对咖啡树的影响，以减少缺水的影响。这些处理是结合土壤覆盖管理(鹿粪草、聚乙烯膜和裸土)、肥料(常规和控释)和土壤调理剂(咖啡壳、农业石膏、保水性聚合物、有机堆肥和对照)。所进行的评估包括咖啡树的生长、生理和解剖、土壤湿度和对渗透的抵抗力。对结果进行多变量分析。土壤覆盖物(黑尾藻)和有机调整剂(咖啡壳和有机堆肥)施用的咖啡植株农艺性能较好，土壤湿度较高。作者要感谢Consórcio Pesquisa caf、inctcaf、FAPEMIG、CAPES、CNPq、咖啡部门/UFLA、ICL南巴西和Terra de cullo和Hydroplan对本项目的支持。披露声明作者未报告潜在的利益冲突。本项目是在Consórcio Pesquisa caf、inctcaf、FAPEMIG、CAPES、CNPq、咖啡部门/UFLA、ICL南巴西和Terra de culvo和Hydroplan的支持下进行的。
{"title":"Behavior of coffee plants under different cropping systems with a focus on mitigating water scarcity","authors":"Marina Scalioni Vilela, Dalyse Toledo Castanheira, Rubens José Guimarães, Milene Alves de Figueiredo Carvalho, Tiago Teruel Rezende, Giovani Belutti Voltolini, Mauro Magalhães Leite Faria, Alisson André Vicente Campos","doi":"10.1080/03650340.2023.2278901","DOIUrl":"https://doi.org/10.1080/03650340.2023.2278901","url":null,"abstract":"ABSTRACTSustainable cropping systems can enhance the development of young coffee plants under drought conditions. The objective of this study was to evaluate the behavior of coffee plants grown under different cover crops, soil conditioners, and fertilizers to reduce the effects of water scarcity. The treatments were the association of soil cover management (Urochloa decumbens, polyethylene film, and bare soil), fertilizers (conventional and controlled release), and soil conditioners (coffee husk, agricultural gypsum, water-retaining polymer, organic compost, and control). The assessments carried out were the growth, physiology, and anatomy of coffee plants and soil moisture and resistance to penetration. A multivariate analysis of the results was performed. The coffee plants grown with soil cover (Urochloa decumbens) and organic conditioners (coffee husk and organic compost) had better agronomic performance and higher soil moisture.KEYWORDS: Coffea arabica Lsoil coversoil conditionerdrought stresssustainable agriculture AcknowledgmentsThe authors would like to thank the Consórcio Pesquisa Café, the INCTCafé, the FAPEMIG, CAPES, CNPq, the Coffee Sector/UFLA, ICL América do Sul and Terra de Cultivo and Hydroplan for their support in this project.Disclosure statementNo potential conflict of interest was reported by the author(s).Supplementary materialSupplemental data for this article can be accessed online at https://doi.org/10.1080/03650340.2023.2278901.Additional informationFundingThis project was carried out with the support of the Consórcio Pesquisa Café, the INCTCafé, the FAPEMIG, CAPES, CNPq, the Coffee Sector/UFLA, ICL América do Sul and Terra de Cultivo and Hydroplan.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136283589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-05DOI: 10.1080/03650340.2023.2273899
Anand B. Mastiholi, B. Sowmya, H. P. Maheswarappa, Shruti P. Gondi, T. Shantappa, D. L. Rudresh, J. B. Gopali
ABSTRACTOrganic (OF) and natural farming (NF) may help to overcome drawbacks of chemical farming. A field experiment was conducted to investigate the microbial diversity and dehydrogenase activity in clusterbean-tomato cropping sequence with different farming systems over 3 years. An increase in bacterial population in OF (73.6%) and NF (55.4%) over conventional farming practice (PoP) and 90.8% (OF) and 62.1% (NF) over farmers’ practice (FP) was recorded. Fungal population in OF and NF increased by 32.8% and 12%, respectively over PoP and 76.8% (OF) and 47% (NF) over FP. Increase in actinomycetes population of 34% (OF) and 18.1% (NF) over PoP and 60.9% (OF) and 41.8% (NF) over FP was observed. Phosphate solubilizing microorganisms (PSM) population increased to 62.8% (OF) and 33.4% (NF) over PoP and 103.1% (OF) and 66.4% (NF) over FP. Population of N-Fixers also found enhanced in OF (31.4%) and NF (9.7%) compared to PoP and FP (OF: 97.4% and NF: 58%). The higher dehydrogenase activity of 41.4% (OF) and 25.5% (NF) was recorded over PoP and OF (62%) and NF (43.8%) over FP. It can be concluded that OF and NF enhanced microbial diversities and dehydrogenase activity.KEYWORDS: Actinomycetesnitrogen fixersPSMchemical farmingrhizosphere AcknowledgmentsAuthors acknowledge the Natural Farming Project funded by Department of Agriculture, Government of Karnataka, India.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe work was supported by the Natural Farming Project funded by Department of Agriculture, Government of Karnataka, India. Natural Farming Project funded by Department of Agriculture, Government of Karnataka, India .
{"title":"Organic and natural farming improve microbial diversity and dehydrogenase activity in clusterbean-tomato cropping sequence","authors":"Anand B. Mastiholi, B. Sowmya, H. P. Maheswarappa, Shruti P. Gondi, T. Shantappa, D. L. Rudresh, J. B. Gopali","doi":"10.1080/03650340.2023.2273899","DOIUrl":"https://doi.org/10.1080/03650340.2023.2273899","url":null,"abstract":"ABSTRACTOrganic (OF) and natural farming (NF) may help to overcome drawbacks of chemical farming. A field experiment was conducted to investigate the microbial diversity and dehydrogenase activity in clusterbean-tomato cropping sequence with different farming systems over 3 years. An increase in bacterial population in OF (73.6%) and NF (55.4%) over conventional farming practice (PoP) and 90.8% (OF) and 62.1% (NF) over farmers’ practice (FP) was recorded. Fungal population in OF and NF increased by 32.8% and 12%, respectively over PoP and 76.8% (OF) and 47% (NF) over FP. Increase in actinomycetes population of 34% (OF) and 18.1% (NF) over PoP and 60.9% (OF) and 41.8% (NF) over FP was observed. Phosphate solubilizing microorganisms (PSM) population increased to 62.8% (OF) and 33.4% (NF) over PoP and 103.1% (OF) and 66.4% (NF) over FP. Population of N-Fixers also found enhanced in OF (31.4%) and NF (9.7%) compared to PoP and FP (OF: 97.4% and NF: 58%). The higher dehydrogenase activity of 41.4% (OF) and 25.5% (NF) was recorded over PoP and OF (62%) and NF (43.8%) over FP. It can be concluded that OF and NF enhanced microbial diversities and dehydrogenase activity.KEYWORDS: Actinomycetesnitrogen fixersPSMchemical farmingrhizosphere AcknowledgmentsAuthors acknowledge the Natural Farming Project funded by Department of Agriculture, Government of Karnataka, India.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe work was supported by the Natural Farming Project funded by Department of Agriculture, Government of Karnataka, India. Natural Farming Project funded by Department of Agriculture, Government of Karnataka, India .","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135726598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACTThe effect of nitrogen (N) and potassium (K) fertilization on yield and oil content in flaxseed, chemical properties and the composition of the fatty acids in the seed oil of flax, is important considering the growing global demand of the oil. The experiment was conducted at Barrackpore, West Bengal, India, with a combination of four N (0, 40, 80 and 120 kg ha−1) and three K (0, 30 and 60 kg ha−1) doses replicated thrice in a randomised complete block design. The quality of flax seed oil was significantly influenced by N and K fertilization. Higher N doses decreased the seed oil content but increased the oil yield. Increased N doses reduced the iodine value (IV), peroxide value (PV), and unsaturated fatty acid (UFA) content, particularly the α-linolenic acid (ALA) content in flax seed oil while the acid value (AV), free fatty acid (FFA), saturated fatty acid (SFA) and oleic acid contents were increased with N application. Potassium fertilization decreased the values of FFA, PV, ALA in flax seed oil and enhanced the oleic acid and poly-unsaturated fatty acid (PUFA) content. The UFA/SFA and oleic acid/ALA ratio decreased at higher N and K doses.KEYWORDS: Flaxnitrogenoil per centpotassiumseed yield AcknowledgmentsThe authors thank the Indian Council of Agricultural Research (ICAR) and the ICAR-Central Research Institute for Jute and Allied Fibres (ICAR-CRIJAF) for providing all the necessary infrastructure and financial support to successfully conduct this experiment at ICAR-CRIJAF.Disclosure statementThe authors report that there are no financial or non-financial conflict of interests to declare.
摘要随着全球对亚麻籽油需求的不断增长，研究氮肥和钾肥对亚麻籽产量和含油量、亚麻籽油化学性质和脂肪酸组成的影响具有重要意义。该试验在印度西孟加拉邦的Barrackpore进行，采用随机完全区组设计，将4个氮(0、40、80和120 kg ha - 1)剂量和3个钾(0、30和60 kg ha - 1)剂量组合重复3次。施氮、钾肥对亚麻籽油品质有显著影响。高施氮量降低了种子含油量，但提高了产量。施氮量的增加降低了亚麻籽油中的碘值(IV)、过氧化物值(PV)和不饱和脂肪酸(UFA)含量，尤其是α-亚麻酸(ALA)含量，而酸值(AV)、游离脂肪酸(FFA)、饱和脂肪酸(SFA)和油酸含量随施氮量的增加而增加。施钾降低了亚麻籽油中FFA、PV、ALA的含量，提高了油酸和多不饱和脂肪酸(PUFA)的含量。在较高的氮、钾剂量下，UFA/SFA和油酸/ALA比值降低。作者感谢印度农业研究委员会(ICAR)和ICAR-中央黄麻及相关纤维研究所(ICAR- crijaf)为在ICAR- crijaf成功开展该实验提供了所有必要的基础设施和财政支持。披露声明作者报告无财务或非财务利益冲突需要申报。
{"title":"Changes in seed yield and oil quality of flax ( <i>Linum usitatissimum</i> L.) for industrial use in response to nitrogen and potassium fertilization","authors":"Sabyasachi Mitra, Biswanath Adhikary, Sariful Islam, Subir Kumar Nag, Nurnabi Meherul Alam, Sonali Paul Mazumdar, Mukesh Kumar, Arvind Kumar Singh, Debarati Datta, Chandan Sourav Kar, Surendra Kumar Pandey, Satabdi Ganguly, Akshaya Mondal, Gouranga Kar","doi":"10.1080/03650340.2023.2271402","DOIUrl":"https://doi.org/10.1080/03650340.2023.2271402","url":null,"abstract":"ABSTRACTThe effect of nitrogen (N) and potassium (K) fertilization on yield and oil content in flaxseed, chemical properties and the composition of the fatty acids in the seed oil of flax, is important considering the growing global demand of the oil. The experiment was conducted at Barrackpore, West Bengal, India, with a combination of four N (0, 40, 80 and 120 kg ha−1) and three K (0, 30 and 60 kg ha−1) doses replicated thrice in a randomised complete block design. The quality of flax seed oil was significantly influenced by N and K fertilization. Higher N doses decreased the seed oil content but increased the oil yield. Increased N doses reduced the iodine value (IV), peroxide value (PV), and unsaturated fatty acid (UFA) content, particularly the α-linolenic acid (ALA) content in flax seed oil while the acid value (AV), free fatty acid (FFA), saturated fatty acid (SFA) and oleic acid contents were increased with N application. Potassium fertilization decreased the values of FFA, PV, ALA in flax seed oil and enhanced the oleic acid and poly-unsaturated fatty acid (PUFA) content. The UFA/SFA and oleic acid/ALA ratio decreased at higher N and K doses.KEYWORDS: Flaxnitrogenoil per centpotassiumseed yield AcknowledgmentsThe authors thank the Indian Council of Agricultural Research (ICAR) and the ICAR-Central Research Institute for Jute and Allied Fibres (ICAR-CRIJAF) for providing all the necessary infrastructure and financial support to successfully conduct this experiment at ICAR-CRIJAF.Disclosure statementThe authors report that there are no financial or non-financial conflict of interests to declare.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135271436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-26DOI: 10.1080/03650340.2023.2269851
Ming Liu, Yongchao Yu, Rong Jin, Peng Zhao, Qiangqiang Zhang, Xiaoya Zhu, Jing Wang, Zhonghou Tang
Plant roots are sensitive to potassium (K+) deficiency signals. Therefore, regulating root growth by exogenous methods is a vital strategy to improve low K+ tolerance of sweetpotato. We studied the effects of exogenous indole-3-acetic acid (IAA) on growth, K+ absorption, and root characteristics in sweetpotato exposed to low K+ treatment (LK). LK significantly inhibited dry mass, K+ concentration and accumulation, as well as the root elongation (length) and branching (forks and crossings) in sweetpotato seedlings. However, exogenous IAA increased the length, ratio, and density of lateral roots and promoted absorption and accumulation of K+, which effectively alleviated the inhibitory effect of low K+. Exogenous IAA also increased the expression levels of auxin synthesis (IbYUC6 and IbTAR2) and transport (IbPIN1, IbPIN3, and IbPIN8) genes in leaves and roots, which promoted the increase of endogenous IAA content. Furthermore, exogenous IAA was more effective on low-K-tolerant variety (XS32) than low-K-sensitive variety (NZ1) under LK stress, depending on their different IAA synthesis and transport strategies. These results indicated that exogenous IAA enhanced root responsiveness of sweetpotato to low K+ stress by modulating auxin biosynthesis and transport, thereby improving the tolerance of sweetpotato to low K+ stress.
{"title":"Exogenous IAA enhances low potassium tolerance of sweetpotato by regulating root response strategy","authors":"Ming Liu, Yongchao Yu, Rong Jin, Peng Zhao, Qiangqiang Zhang, Xiaoya Zhu, Jing Wang, Zhonghou Tang","doi":"10.1080/03650340.2023.2269851","DOIUrl":"https://doi.org/10.1080/03650340.2023.2269851","url":null,"abstract":"Plant roots are sensitive to potassium (K+) deficiency signals. Therefore, regulating root growth by exogenous methods is a vital strategy to improve low K+ tolerance of sweetpotato. We studied the effects of exogenous indole-3-acetic acid (IAA) on growth, K+ absorption, and root characteristics in sweetpotato exposed to low K+ treatment (LK). LK significantly inhibited dry mass, K+ concentration and accumulation, as well as the root elongation (length) and branching (forks and crossings) in sweetpotato seedlings. However, exogenous IAA increased the length, ratio, and density of lateral roots and promoted absorption and accumulation of K+, which effectively alleviated the inhibitory effect of low K+. Exogenous IAA also increased the expression levels of auxin synthesis (IbYUC6 and IbTAR2) and transport (IbPIN1, IbPIN3, and IbPIN8) genes in leaves and roots, which promoted the increase of endogenous IAA content. Furthermore, exogenous IAA was more effective on low-K-tolerant variety (XS32) than low-K-sensitive variety (NZ1) under LK stress, depending on their different IAA synthesis and transport strategies. These results indicated that exogenous IAA enhanced root responsiveness of sweetpotato to low K+ stress by modulating auxin biosynthesis and transport, thereby improving the tolerance of sweetpotato to low K+ stress.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136376817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT Different C influences the kinetic and thermodynamic behavior of catalase (CAT) remains unknown. The study aimed to assess the impact of three different C [straw, biochar, nanocarbon] on kinetic and thermodynamic characteristic of CAT in 5 °C ~ 45 °C. These three C-sources increased Vmax, Vmax/Km, and decreased Km, ΔG, ΔH, ΔS at different temperatures. The addition of nanocarbon induced significant changes in the soil enzymatic characteristics, resulting in the highest soil CAT-activity. After continuous-heating, the addition of three C-sources to the soil increased and then decreased the CAT-activity and its kinetic parameters and their values peaked at 15 °C or 25 °C. On the other hand, the ΔG showed decreasing and then increasing trend and ΔS gradually increased. Q 10 decreased and correlations between CAT and kinetic thermodynamic parameters were observed with increasing-temperature in three C-treatments. There was a significant correlation between soil’s physicochemical properties and soil CAT-activity and their enzymatic reaction characteristics after straw and biochar-treatments. However, an insignificant correlation was observed between the soil indexes after the nanocarbon-treatment. Thus, different C-sources could increase the soil CAT-activity by promoting the enzymatic reaction process under continuous-warming. The continues-warming without any change in the temperature-adaptation of CAT, but its temperature-sensitivity decreased after C-source addition.
{"title":"Straw, biochar, and nanocarbon altered the enzymatic reaction kinetics and thermodynamic process of catalase in the black soil under continuous warming","authors":"Yuxin Guo, Jingyi Zhao, Jinwei Li, Yanlong Dong, Zhonghui Yue, Yuan Yin, Wei Li, Qina Ren, Xiangyu Wu","doi":"10.1080/03650340.2023.2272653","DOIUrl":"https://doi.org/10.1080/03650340.2023.2272653","url":null,"abstract":"ABSTRACT Different C influences the kinetic and thermodynamic behavior of catalase (CAT) remains unknown. The study aimed to assess the impact of three different C [straw, biochar, nanocarbon] on kinetic and thermodynamic characteristic of CAT in 5 °C ~ 45 °C. These three C-sources increased Vmax, Vmax/Km, and decreased Km, ΔG, ΔH, ΔS at different temperatures. The addition of nanocarbon induced significant changes in the soil enzymatic characteristics, resulting in the highest soil CAT-activity. After continuous-heating, the addition of three C-sources to the soil increased and then decreased the CAT-activity and its kinetic parameters and their values peaked at 15 °C or 25 °C. On the other hand, the ΔG showed decreasing and then increasing trend and ΔS gradually increased. Q 10 decreased and correlations between CAT and kinetic thermodynamic parameters were observed with increasing-temperature in three C-treatments. There was a significant correlation between soil’s physicochemical properties and soil CAT-activity and their enzymatic reaction characteristics after straw and biochar-treatments. However, an insignificant correlation was observed between the soil indexes after the nanocarbon-treatment. Thus, different C-sources could increase the soil CAT-activity by promoting the enzymatic reaction process under continuous-warming. The continues-warming without any change in the temperature-adaptation of CAT, but its temperature-sensitivity decreased after C-source addition.","PeriodicalId":8154,"journal":{"name":"Archives of Agronomy and Soil Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135217932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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