Article
Agronomy
Solomon Endris, Masresha Fetene, Tilahun Amede
Summary: Sorghum production in semi-arid areas of northeastern Ethiopia is limited by terminal drought stress. Experiments conducted over two consecutive years showed that potassium and blended fertilizer inputs can significantly impact sorghum's response to drought, affecting gas exchange, dry matter accumulation, and growth parameters. Increasing NPSBZn-blended fertilizer supply was associated with reduced leaf potassium content, increased intercellular CO2 concentration, and improved water use efficiency during anthesis. Increasing net assimilation rate was observed with potassium and blended fertilizer inputs at physiological maturity, indicating the potential benefits of early supply of these nutrients for grain sorghum in drought-prone areas.
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2021)
Article
Agronomy
Lidong Wang, Li Shang, Xiaoyuan Wu, Huaiqing Hao, Hai-Chun Jing
Summary: This study found that sorghum leaf senescence is primarily controlled by the progression, rather than the onset of senescence. The senescence-delaying haplotypes of 45 key genes increased from landraces to improved lines. Leaf senescence is a genetically programmed developmental process that plays a central role in plant survival and crop production.
THEORETICAL AND APPLIED GENETICS
(2023)
Article
Biotechnology & Applied Microbiology
Miaoyi Zhou, Bingbing Zhao, Hanshuai Li, Wen Ren, Qian Zhang, Ya Liu, Jiuran Zhao
Summary: This study identified and characterized MAPKK, MAPKKK, and MAPK genes in sorghum and revealed their roles in drought response. Overexpression experiments showed that SbMPK14 functions as a negative regulator of the drought response. Further analysis demonstrated that SbMPK14 increases plant drought sensitivity by suppressing the activity of specific transcription factors.
Article
Agronomy
Elvira Sari Dewi, Issaka Abdulai, Gennady Bracho-Mujica, Mercy Appiah, Reimund P. Roetter
Summary: This study investigated the effects of drought and salinity on the growth and productivity of tropical sorghum varieties. The results showed that drought and salinity significantly reduced transpiration and canopy conductance in all cultivars, with Samurai2 being the most affected. Biomass, grain yield, and grain weight also declined under both salinity and drought*salinity treatments. Water use efficiency increased under drought*salinity, but reduced in Samurai2 for grain production. These findings highlight the complex interactions between water stress and salinity in tropical sorghum.
Article
Plant Sciences
Xiaobo Hou, Qingwu Xue, Kirk E. Jessup, Yinghua Zhang, Brock Blaser, B. A. Stewart, David D. Baltensperger
Summary: Stay-green (SG) genotype of grain sorghum performs better at medium and high N levels under post-flowering drought, showing greater green leaf area, slower senescence rate, more biomass, and higher water and nitrogen use efficiency compared to non-stay-green (NSG) genotype. However, at low N levels, the advantages of SG genotype are not significant. Adequate nitrogen supply is important for SG genotype under drought conditions, and greater root biomass may contribute to higher nitrogen use efficiency in SG genotype.
Article
Plant Sciences
Ryoichi Araki, Yuka Takano, Hidetoshi Miyazaki, Hiroyuki Ii, Ping An
Summary: Drought stress increases iron accumulation in sorghum seeds while decreasing it in leaves. It impairs the expression of genes involved in photosynthesis, leading to reduced plant biomass. Under drought stress, genes encoding vacuole iron transporters and ferritin are upregulated.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Agronomy
B. Techale, H. Dong, G. Mihrete, G. Aregash, A. H. Paterson, B. Kassahun
Summary: This study successfully mapped the QTLs for agronomic and yield-related traits in elite Ethiopian sorghum germplasm using three connected mapping populations of different genetic backgrounds. A total of 105 QTLs were identified, and 25 meta QTLs were found on a combined consensus map, providing important references for genetic studies and marker-assisted breeding programs in sorghum. The research also revealed substantial standing variation among the lines, especially in the trait of reduced leaf senescence, which could be utilized in improving drought tolerance of sorghum.
Article
Plant Sciences
Nikhil S. Jaikumar, Samantha S. Stutz, Samuel B. Fernandes, Andrew D. B. Leakey, Carl J. Bernacchi, Patrick J. Brown, Stephen P. Long
Summary: In a study of 35 accessions, it was found that the maximum quantum yield of CO2 assimilation declined in lower canopy leaves, with planophile forms experiencing a greater decline than erectophile forms. This decline was associated with a decoupling between electron transport and assimilation, and not with increased bundle sheath leakage. Shaded leaves in both planophiles and erectophiles had higher leaf absorptivity and lower activities of key C-4 enzymes compared to sun leaves.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Ana J. P. Carcedo, Laura Mayor, Paula Demarco, Geoffrey P. Morris, Jane Lingenfelser, Carlos D. Messina, Ignacio A. Ciampitti
Summary: This study characterized the spatial and temporal variation of the target population of environments (TPE) for sorghum in the United States using the APSIM-sorghum model. The results showed that as the intensity of environmental stress increased, there was a clear reduction in grain yield. The study also identified different water and heat stress patterns and their impact on sorghum yield, which can be used in breeding programs to improve genetic gains and facilitate collaboration between breeders, agronomists, and farmers.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Multidisciplinary Sciences
Luciana Minervina de Freitas Moura, Alan Carlos da Costa, Roberto Gomes Vital, Adinan Alves da Silva, Arthur de Almeida Rodrigues, Silvio Alencar Candido-Sobrinho, Caroline Mueller
Summary: This study characterized morphological changes in the root system of C. abyssinica and R. sativus subjected to water deficit, and found that R. sativus has a longer tolerance and recovery capacity.
Article
Agronomy
Ki Eun Song, He Rin Hwang, e Sun Hee Hong, Petr Konvalina, Woo Jin Jun, Jin Woong Jung, Sangin Shim
Summary: Protein analysis was used to investigate the beneficial effects of hydrogen peroxide on seed germination. The results showed that hydrogen peroxide treatment alleviated the reduction in germination percentage and seedling growth under drought stress. The increased energy production and defense activity suggest a practical application of hydrogen peroxide for reducing drought stress in sorghum.
Article
Plant Sciences
M. N. Sohail, A. A. Quinn, C. K. Blomstedt, R. M. Gleadow
Summary: Droughted sorghum, both wildtype and dhurrin-lacking mutants, had higher concentrations of reactive oxygen species (ROS). Dhurrin increased in wildtype genotypes with drought. Sorghum bicolor is tolerant of high temperatures and prolonged droughts. During droughts, concentrations of dhurrin increase posing a risk to livestock of hydrogen cyanide poisoning.
Article
Horticulture
Will Wheeler, Brent Black, Bruce Bugbee
Summary: The study found that Krymsk(R) 6 rootstock exhibited higher photosynthesis rate, more vigorous vegetative growth, and less conservative stomatal regulation during incipient drought compared to Krymsk(R) 5. On the other hand, Krymsk(R) 5 showed a more conservative water use efficiency, likely due to greater stomatal control or reduced carbon partitioning to roots. Further research is needed to confirm the applicability of these results to grafted scion trees grown under field conditions.
Article
Plant Sciences
Thayssa Rabelo Schley, Danilo Miralha Franco, Joao Pessoa Araujo Junior, Ivan de Godoy Maia, Gustavo Habermann, Luiz Fernando Rolim de Almeida
Summary: Stomatal conductance (g(s)) takes longer to recover after drought compared to leaf water potential or leaf water content (RWC). Aquaporins, specifically SbTIP1;1, could modulate the recovery of g(s) by alleviating its downregulation during rehydration.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Biochemistry & Molecular Biology
Kexing Guan, Zhenming Yang, Meiqi Zhan, Meihui Zheng, Jiangfeng You, Xiangxiang Meng, He Li, Jie Gao
Summary: Aluminum (Al) toxicity is a major limiting factor for crop production in acidic soils. Two WRKY transcription factors, SbWRKY22 and SbWRKY65, were identified and characterized in sweet sorghum. Al induced the transcription of SbWRKY22 and SbWRKY65 in sweet sorghum root apices. SbWRKY22 showed significant regulation of major known Al tolerance genes, while SbWRKY65 indirectly regulated Al-tolerance genes through regulating SbWRKY22.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Energy & Fuels
Stefano Amaducci, Xinyou Yin, Michele Colauzzi
Article
Soil Science
Ferrarini Andrea, Claudio Bini, Stefano Amaducci
APPLIED SOIL ECOLOGY
(2018)
Article
Agricultural Engineering
Ephrem Habyarimana, Carlo Lorenzoni, Rita Redaelli, Michela Alfieri, Stefano Amaducci, Stan Cox
BIOMASS & BIOENERGY
(2018)
Article
Agricultural Engineering
Joerg Muessig, Stefano Amaducci
INDUSTRIAL CROPS AND PRODUCTS
(2018)
Article
Plant Sciences
Kailei Tang, Alessandra Fracasso, Paul C. Struik, Xinyou Yin, Stefano Amaducci
FRONTIERS IN PLANT SCIENCE
(2018)
Article
Agronomy
Andrea Fiorini, Roberta Boselli, Stefano Amaducci, Vincenzo Tabaglio
EUROPEAN JOURNAL OF AGRONOMY
(2018)
Article
Plant Sciences
Salvatore Musio, Joerg Muessig, Stefano Amaducci
FRONTIERS IN PLANT SCIENCE
(2018)
Review
Engineering, Environmental
Alessandro Agostini, Jacopo Giuntoli, Luisa Marelli, Stefano Amaducci
INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT
(2020)
Article
Agricultural Engineering
Joerg Muessig, Katharina Haag, Salvatore Musio, Marie Bjelkova, Katharina Albrecht, Birgit Uhrlaub, Shaoliang Wang, Hansjoerg Wieland, Stefano Amaducci
INDUSTRIAL CROPS AND PRODUCTS
(2020)
Article
Plant Sciences
Fidelia Cascini, Alessio Farcomeni, Daniele Migliorini, Laura Baldassarri, Ilaria Boschi, Simona Martello, Stefano Amaducci, Luigi Lucini, Jamila Bernardi
Article
Soil Science
Andrea Fiorini, Stefania Codruta Maris, Diego Abalos, Stefano Amaducci, Vincenzo Tabaglio
SOIL & TILLAGE RESEARCH
(2020)
Article
Plant Sciences
Jordi Petit, Elma M. J. Salentijn, Maria-Joao Paulo, Claire Thouminot, Bert Jan van Dinter, Gianmaria Magagnini, Hans-Joerg Gusovius, Kailei Tang, Stefano Amaducci, Shaoliang Wang, Birgit Uhrlaub, Joerg Muessig, Luisa M. Trindade
FRONTIERS IN PLANT SCIENCE
(2020)
Article
Agronomy
Alessandra Fracasso, Luca Telo, Luisa Lanfranco, Paola Bonfante, Stefano Amaducci
Article
Agricultural Engineering
S. Amaducci, A. Assirelli, M. Trevisan, A. Fracasso, E. Santangelo, A. Suardi, A. Del Giudice, A. Scarfone, L. Pari
APPLIED ENGINEERING IN AGRICULTURE
(2018)