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making wheat salt tolerant:What is missing?

The Crop Journal 2024年第5期12卷 1299-1308页

作者： Lukasz Kotula Noreen Zahra muhammad Farooq Sergey Shabala kadambot h.m.siddique The UWA Institute of Agriculture The University of Western AustraliaPerthWA 6009Australia UWA School of Agriculture and Environment The University of Western AustraliaPerthWA 6009Australia Department of Primary Industries and Regional Development PerthWA 6151Australia Department of Botany Government College Women University FaisalabadFaisalabad 75760PunjabPakistan Department of Plant Sciences College of Agricultural and Marine SciencesSultan Qaboos UniversityAl-Khoud 123Oman School of Biological Sciences The University of Western AustraliaPerthWA 6009Australia International Research Centre for Environmental membrane Biology Foshan UniversityFoshan 528225GuangdongChina

The growing global population presents a significant challenge to ensuring food security,further compounded by the increasing threat of salinity to agricultural ***,a major staple food providing 20%of the total caloric intake for humans,is susceptible to salinity *** new salttolerant wheat cultivars using wheat breeding techniques and genetic modifications is crucial to addressing this issue while ensuring the sustainability and efficiency of wheat production systems within the prevailing climate *** review overviews the current landscape in this field and explores key mechanisms and associated genetic traits that warrant attention within breeding *** contend that traditional approaches to breeding wheat for Na^(+)exclusion have limited applicability across varying soil salinity levels,rendering them ***,we question current phenotyping approaches,advocating for a shift from whole-plant assessments to cell-based phenotyping ***,we propose a broader use of wild wheat relatives and various breeding strategies to tap into their germplasm pool for inclusion in wheat breeding programs.

关键词： Phenotyping Breeding Reactive oxygen species Tissue tolerance Sodium exclusion Potassium retention

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Better tillage selection before ridge–furrow film mulch can facilitate root proliferation, and increase nitrogen accumulation,translocation and grain yield of maize in a semiarid area

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Journal of Integrative Agriculture 2023年第6期22卷 1658-1670页

作者： ZhANG miao-miao DANG Peng-fei LIYu-ze QIN Xiao-liang kadambot h.m.siddique College of Agronomy/Key Laboratory of Crop Physio-ecology and Tillage Science in Northwestern Loess Plateau Northwest A&F UniversityYangling 712100P.R.China The UWA Institute of Agriculture and School of Agriculture&Environment The University of Western AustraliaPerth WA 6001Australia

Plastic film mulch systems are used widely in arid areas, and the associated tillage measures affect soil properties, root and crop growth, and nutrient uptake. however, much debate surrounds the most suitable tillage method for plastic film mulch systems. We conducted a two-year field experiment to explore the impact of three tillage treatments-rotary tillage before ridge–furrow plastic film mulch(mR), no-tillage before ridge–furrow plastic film mulch(mZ), and plow tillage before ridge–furrow plastic film mulch(mP)-on soil total nitrogen, available nitrogen, root stratification structure,nitrogen transfer and utilization, and maize yield. The results showed that mP had better soil quality than either mR or mZ over 2019 and 2020, with higher nitrate-nitrogen and total nitrogen in the 0–40 cm soil layer. mP improved the soil physicochemical properties more than the other treatments, producing significantly higher root numbers and root biomass for the aerial and underground nodal roots than mR and mZ. At harvest, mP had the highest root biomass density,root length density, and root surface area density in the different soil layers(0–20, 20–40, and 0–40 cm). Significant correlations occurred between root biomass and aboveground nitrogen accumulation during maize growth. During grain filling, mP had the greatest nitrogen transfer amount, significantly increasing root and aboveground nitrogen transfer by 19.63–45.82% and 11.15–24.56%, respectively, relative to the other treatments. mP significantly produced 1.36–26.73%higher grain yields and a higher grain crude protein content at harvest than mR and mZ. mP also had higher values for the nitrogen harvest index, nitrogen uptake efficiency, and partial factor productivity of nitrogen fertilizer than mR and *** conclusion, plow tillage combined with a ridge–furrow plastic film mulch system facilitated maize root development and improved nitrogen utilization, thereby increasing maize yield more than the other treatments.

关键词： maize tillage plastic film mulch root nitrogen transfer

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Ephemeral gully recognition and accuracy evaluation using deep learning in the hilly and gully region of the Loess Plateau in China

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International Soil and Water Conservation Research 2022年第3期10卷 371-381页

作者： Boyang Liu Biao Zhang hao Feng Shufang Wu Jiangtao Yang Yufeng Zou kadambot h.m.siddique Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas Ministry of EducationNorthwest A&F UniversityYangling712100China Institute of Water Saving Agriculture in Arid Areas of China Northwest A&F UniversityYangling712100China College of Water Resources and Architectural Engineering Northwest A&F UniversityYangling712100China Department of Foreign Languages Northwest A&F UniversityYangling712100China The UWA Institute of Agriculture and School of Agriculture&Environment The University of Western AustraliaPerthWA6001Australia

Ephemeral gullies are widely distributed in the hilly and gully region of the Loess Plateau and play a unique role in the slope gully erosion *** and accurate identification of ephemeral gullies impacts the distribution law and development trend of soil erosion on the Loess *** learning algorithms can quickly and accurately process large data samples that recognize ephemeral gullies from remote sensing ***,we investigated ephemeral gullies in the Zhoutungou watershed in the hilly and gully region of the Loess Plateau in China using satellite and unmanned aerial vehicle images and combined a deep learning image semantic segmentation model to realize automatic recognition and feature *** Accuracy,Precision,Recall,F1value,and AUC,we compared the ephemeral gully recognition results and accuracy evaluation of U-Net,R2U-Net,and SegNet image semantic segmentation *** SegNet model was ranked first,followed by the R2U-Net and U-Net models,for ephemeral gully recognition in the hilly and gully region of the Loess *** ephemeral gully length and width between predicted and measured values had RmSE values of 6.78 m and 0.50 m,respectively,indicating that the model has an excellent recognition *** study identified a fast and accurate method for ephemeral gully recognition in the hilly and gully region of the Loess Plateau based on remote sensing images to provide an academic reference and practical guidance for soil erosion monitoring and slope and gully management in the Loess Plateau region.

关键词： Deep learning Remote sensing image Ephemeral gully recognition Loess plateau Image semantic segmentation Accuracy evaluation

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Effects of different continuous fertilizer managements on soil total nitrogen stocks in China: A meta-analysis

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Pedosphere 2022年第1期32卷 39-48页

作者： Pengfei DANG Congfeng LI Tiantian hUANG Chen LU Yajun LI Xiaoliang QIN kadambot h.m.siddique College of Agronomy Northwest A&F UniversityYangling 712100China Institute of Crop Science Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and EcologyMinistry of AgricultureBeijing 100081China Institute of Agriculture and School of Agriculture&Environment The University of Western AustraliaPerth WA 6001Australia

Soil total nitrogen is critical for crop productivity and related to agricultural managements. however, the effects of different fertilizer applications on soil total nitrogen storage are not well understood. To quantify soil total nitrogen storage under different fertilizer management practices and explore the effects of climate, soil texture, experimental duration, and cropping system on soil total nitrogen storage in China, we conducted a meta-analysis of 67 fertilizer management strategies from experiments conducted over a period of at least three years. This meta-analysis included 854 observations of changes in soil total nitrogen stock(TNS) under no fertilizer application(control, CK), chemical fertilization with nitrogen, phosphorus, and potassium(CF), CF plus straw retention(CFS), and CF plus manure addition(CFm) relative to initial soil TNS. The CFm and CFS treatments increased soil TNS, and the CFm treatments increased soil C/N ratio the most. The longer the experimental duration, the greater the increase in soil TNS in the CF, CFS, and CFm *** texture and crop type significantly affected the changes in soil TNS. The experimental duration, initial soil TNS, soil C/N ratio, and cropping system had significant linear correlations with the change in soil TNS. Temperature and precipitation were not correlated with soil TNS. Results of random forest modeling indicated that the most important factor affecting changes in soil TNS was experimental duration(positive correlation), followed by initial soil TNS(negative correlation). The CFm treatments had the largest increase in soil TNS under various conditions. We recommend promoting CFm to improve soil fertility in farmlands globally.

关键词： chemical fertilizer climate change cropping systems manure soil fertility straw retention

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STRATEGIES FOR ImPROVING WATER USE EFFICIENCY IN DRYLAND AGROECOSYSTEmS

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Frontiers of Agricultural Science and Engineering 2021年第4期8卷 599-602页

作者： Noreen ZAhRA muhammad FAROOQ kadambot h.m.siddique Department of Botany University of AgricultureFaisalabad 38040Pakistan Department of Plant Sciences College of Agricultural and Marine SciencesSultan Qaboos UniversityAl-Khoud 123Oman The UWA Institute of Agriculture The University of Western Australia(UWA)PerthWA 6001Australia

1 INTRODUCTION Rainfed cultivation is under pressure in dryland agroecosystems in developing countries and is a major concern for subsistence farmers. Alternate crop management and efficient water use practices may he... 详细信息

关键词： ROV systems. farming

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Ameliorative effects of potassium on drought-induced decreases in fiber length of cotton(Gossypium hirsutum L.) are associated with osmolyte dynamics during fiber development

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The Crop Journal 2019年第5期7卷 619-634页

作者： Wenqing Zhao haoran Dong Rizwan Zahoor Zhiguo Zhou John L.Snider Yinglong Chen kadambot h.m.siddique Youhua Wang Key Laboratory of Crop Ecophysiology and management of ministry of Agriculture Nanjing Agricultural UniversityNanjing 210095JiangsuChina Jiangsu Collaborative Innovation Center for modern Crop Production(JCIC-mCP) Nanjing Agricultural UniversityNanjing 210095JiangsuChina The UWA Institute of Agriculture The University of Western AustraliaPerthWA 6001Australia The Department of Crop and Soil Sciences University of GeorgiaTiftonGA 31794USA State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Northwest A&F UniversityYangling 712100ShannxiChina University of the Agriculture Faisalabad Sub-campus DepalpurOkaraPakistan

Fiber length of cotton(Gossypium hirsutum L.)decreases under drought stress,potassium(K)could diminish the decreased caused by drought,but the mechanism associated with this alleviation effect is not *** evaluated the effect of K on fiber elongation using two cotton cultivars,Simian 3 and Siza 3,grown in well-watered and drought-stressed *** fertilizer(K2O)was applied 0,150,or 300 kg ha?1 in each growing *** stress reduced the final fiber length due to a decline in the maximum rate of rapid elongation(Vmax,mmday?1).The application of K alleviated the droughtinduced fiber length reduction by increasing *** 10 and 15 days post-anthesis(DPA),drought significantly reduced osmotic potential(OP)and increased K+and malate contents at all K rates,relative to well-watered conditions,which was associated with increased activities of phosphoenolpyruvate carboxylase(PEPC),V-ATPase,PPase,and Pm h+-ATPase in cotton ***,the relative contribution of K+and malate to OP declined under drought in comparison with well-watered *** with control without K,K application decreased OP and increased the accumulation of osmolytes(K+,malate and soluble sugar)as well as the activities of related enzymes in fiber irrespective of water ***,K application increased osmotic adjustment during drought,and improved the contribution of K+and malate to OP,especially under drought *** study showed that drought decreased fiber length by reducing Vmax,and K application ameliorates the decline in fiber elongation due to drought by enhancing osmolytes accumulation and their contribution to OP in fiber cells.

关键词： Cotton(Gossypium hirsutum) Fiber length Drought stress Potassium application Osmolyte

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Carbon Isotope Discrimination is not Correlated with Transpiration Efficiency in Three Cool-Season Grain Legumes(Pulses)

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Journal of Integrative Plant Biology 2007年第10期49卷 1478-1483页

作者： Neil C.Turner Jairo A.Palta Renuka Shrestha Christiane Ludwig kadambot h.m.siddique David W.Turner Centre for Legumes in mediterranean Agriculture M080The University of Western Australia35 Stirling HighwayCrawleyWA 6009Australia Centre for Legumes in mediterranean Agriculture M080The University of Western Australia35 Stirling HighwayCrawleyWA 6009Australia CSIRO Plant IndustryPrivate Mail Bag No.5WembleyWA 6913Australia School of Plant Biology M084Institute of AgricultureThe University of Western Australia35 Stirling HighwayCrawleyWA 6009Australia CSIRO Plant Industry Private Mail Bag No.5WembleyWA 6913Australia Centre for Legumes in mediterranean Agriculture M080The University of Western Australia35 Stirling HighwayCrawleyWA 6009Australia School of Plant BiologyM084Institute of AgricultureThe University of Western Australia35 Stirling HighwayCrawleyWA 6009Australia

The carbon isotope discrimination （δ^13C） of leaves has been shown to be correlated with the transpiration efficiency of leaves in a wide range of species. This has led to δ^13C being used in breeding programs to select for improved transpiration efficiency. The correlation between δ^13C and transpiration efficiency was determined under well-watered conditions during the vegetative phase in six genotypes of lentil （Lens culinaris medikus）, six genotypes of chickpea （Cicerarietinum L.） and 10 cultivars of narrow-leafed lupin （Lupinus angustifolius L.）. Biomass （dry matter） accumulation and water use （transpiration） varied among the genotypes in all three species and transpiration efficiency was 40% to 75% higher in the most efficient compared with the least efficient genotypes. however, δ^13C and transpiration efficiency were not significantly correlated in any of the species. This suggests that the δ^13C technique cannot be used in selection for transpiration efficiency in the three grain legumes （pulses） studied.

关键词： biomass accumulation breeding chickpea lupin Cicer anetinum Lens culinans lentil Lupinus angustifofius water use.

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Trehalose:A sugar molecule involved in temperature stress management in plants

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The Crop Journal 2024年第1期12卷 1-16页

作者： Ali Raza Savita Bhardwaj md Atikur Rahman Pedro García-Caparrós madiha habib Faisal Saeed Sidra Charagh Christine h.Foyer kadambot h.m.siddique Rajeev K.Varshney College of Agriculture Fujian Agriculture and Forestry University(FAFU)Fuzhou 350002FujianChina Department of Botany School of Bioengineering and BiosciencesLovely Professional UniversityPhagwara 144411India Department of Botany MCM DAV CollegeKangraHimachal Pradesh 176001India Grassland and Forage Division National Institute of Animal ScienceRural Development AdministrationCheonan 31000Republic of Korea Agronomy Department of Superior School Engineering University of AlmeríaAlmeríaSpain National Institute for Genomics and Advanced Biotechnology National Agricultural Research CentrePark Rd.Islamabad 45500Pakistan Agriculture Health and Environment DepartmentNatural Resources InstituteFaculty of Engineering&ScienceUniversity of GreenwichKent ME44TBUK State Key Laboratory of Rice Biology China National Rice Research InstituteChinese Academy of Agricultural SciencesHangzhouZhejiangChina School of Biosciences College of Life and Environmental SciencesUniversity of BirminghamEdgbaston B152TTUK The UWA Institute of Agriculture The University of Western AustraliaCrawleyPerth 6009Australia WA State Agricultural Biotechnology Centre Centre for Crop and Food InnovationFood Futures InstituteMurdoch UniversityMurdochWA 6150Australia

Trehalose(Tre)is a non-reducing disaccharide found in many species,including bacteria,fungi,invertebrates,yeast,and even plants,where it acts as an osmoprotectant,energy source,or protein/membrane *** relatively small amounts in plants,Tre concentrations increase following exposure to abiotic ***-6-phosphate,a precursor of Tre,has regulatory functions in sugar metabolism,crop production,and stress *** the various abiotic stresses,temperature extremes(heat or cold stress)are anticipated to impact crop production worldwide due to ongoing climate *** small amounts of Tre can mitigate negative physiological,metabolic,and molecular responses triggered by temperature *** also interacts with other sugars,osmoprotectants,amino acids,and phytohormones to regulate metabolic reprogramming that underpins temperature stress *** plants expressing Tre-synthesis genes accumulate Tre and show improved stress ***-wide studies of Tre-encoding genes suggest roles in plant growth,development,and stress *** review discusses the functions of Tre in mitigating temperature stress—highlighting genetic engineering approaches to modify Tre metabolism,crosstalk,and interactions with other molecules—and in-silico approaches for identifying novel Tre-encoding genes in diverse plant *** consider how this knowledge can be used to develop temperature-resilient crops essential for sustainable agriculture.

关键词： Abiotic stress Gene expression Genetic engineering Osmolyte Trehalose-6-phosphate

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Sequencing of Cultivated Peanut, Arachis hypogaea, Yields Insights into Genome Evolution and Oil Improvement

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molecular Plant 2019年第7期12卷 920-934页

作者： Xiaoping Chen Qing Lu hao Liu Jianan Zhang Yanbin hong haofa Lan haifen Li Jinpeng Wang haiyan Liu Shaoxiong Li manish K.Pandey Zhikang Zhang Guiyuan Zhou Jigao Yu Guoqiang Zhang Jiaqing Yuan Xingyu Li Shijie Wen Fanbo meng Shanlin Yu Xiyin Wang kadambot h.m.siddique Zhong-Jian Liu Andrew h.Paterson Rajeev K.Varshney Xuanqiang Liang South China Peanut Sub-center of National Center of Oilseed Crops Improvement Guangdong Key Laboratory for Crops Genetic Improvement Crops Research Institute Guangdong Academy of Agricultural Sciences (GAAS) Guangzhou China Fujian Colleges and Universities Engineering Research Institute of Conservation and Utilization of Natural Bioresources College of Forestry Fujian Agriculture and Forestry University Fuzhou 350002 China Plant Genome mapping Laboratory University of Georgia Athens USA National Foxtail millet Improvement Center Minor Cereal Crops Laboratory of Hebei Province Institute of Millet Crops Hebei Academy of Agriculture and Forestry Sciences Shijiazhuang China molBreeding Biotechnology Co. Ltd. Shijiazhuang China School of Life Sciences and Center for Genomics and Computational Biology North China University of Science and Technology Tangshan China Center of Excellence in Genomics & Systems Biology International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) Hyderabad India Shenzhen Key Laboratory for Orchid Conservation and Utilization National Orchid Conservation Center of China and Orchid Conservation and Research Center of Shenzhen Shenzhen China Shandong Peanut Research Institute Shandong Academy of Agricultural Sciences Qingdao China UWA Institute of Agriculture The University of Western Australia Crawley Australia Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture Fujian Agriculture and Forestry University Fuzhou 350002 China

Cultivated peanut (Arachis hypogaea) is an allotetraploid crop planted in Asia, Africa, and America for edible oil and protein. To explore the origins and consequences of tetraploidy, we sequenced the allotetraploid A. hypogaea genome and compared it with the related diploid Arachis duranensis and Arachis ipaensis genomes. We annotated 39 888 A-subgenome genes and 41 526 B-subgenome genes in allotetraploid peanut. The A. hypogaea subgenomes have evolved asymmetrically, with the B subgenome resembling the ancestral state and the A subgenome undergoing more gene disruption, loss, conversion, and transposable element proliferation, and having reduced gene expression during seed development despite lacking genome-wide expression dominance. Genomic and transcriptomic analyses identified more than 2 500 oil metabolism-related genes and revealed that most of them show altered expression early in seed development while their expression ceases during desiccation, presenting a comprehensive map of peanut lipid biosynthesis. The availability of these genomic resources will facilitate a better understanding of the complex genome architecture, agronomically and economically important genes, and genetic improvement of peanut.

关键词： cultivated peanut denovo sequencing comparative genomics genome evolution oil metabolism

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资源可持续利用促进中国农业发展

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Engineering 2018年第5期 21-24页

作者：申建波张福锁 kadambot h.m.siddique National Academy of Agriculture Green Development Center for ResourcesEnvironment and Food SecurityCollege of Resources and Environmental SciencesChina Agricultural University hackett of the UWA Institute of Agriculture The University of Western Australia

1.引言自从1978年改革开放以来,中国进入一个令人印象深刻的粮食生产时代。当前,中国用世界9%的耕地养活了世界22%的人口[1]。因此,中国已经成为全球反饥饿斗争的领导者[2]。1978—2016年间,中国粮食产量增加显著,以平均每年9%的增长速... 详细信息

1.引言自从1978年改革开放以来,中国进入一个令人印象深刻的粮食生产时代。当前,中国用世界9%的耕地养活了世界22%的人口[1]。因此,中国已经成为全球反饥饿斗争的领导者[2]。1978—2016年间,中国粮食产量增加显著,以平均每年9%的增长速率从3×108t增加到

关键词：农业可持续发展粮食产量持续利用

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