Cereal Research Communications最新文献_第5页

Non-enzymatic glycation: an essential modification of barley proteins affecting beer quality—brief review 非酶糖化：影响啤酒质量的大麦蛋白质的基本修饰--简要回顾

IF 1.6 4区农林科学

Cereal Research Communications Pub Date : 2024-05-28 DOI: 10.1007/s42976-024-00530-6

Janette Bobalova, Dana Strouhalova

引用次数: 0

Molecular assessment of genetic diversity of Tanzanian and aflatoxin-resistant maize (Zea mays. L) accessions 坦桑尼亚和抗黄曲霉毒素玉米（Zea mays.L）品种遗传多样性的分子评估

IF 1.6 4区农林科学

Cereal Research Communications Pub Date : 2024-05-28 DOI: 10.1007/s42976-024-00534-2

Gregory F. Bundala, Marco Mng’ong’o, Arnold A. Mushongi, Pavithravani B. Venkataramana

{"title":"Molecular assessment of genetic diversity of Tanzanian and aflatoxin-resistant maize (Zea mays. L) accessions","authors":"Gregory F. Bundala, Marco Mng’ong’o, Arnold A. Mushongi, Pavithravani B. Venkataramana","doi":"10.1007/s42976-024-00534-2","DOIUrl":"https://doi.org/10.1007/s42976-024-00534-2","url":null,"abstract":"Genetic distance information for various maize accessions is important for germplasm improvement and breeding program. However, this information is limited in most of the developing countries such as Tanzania. The present study was conducted to analyze the genetic diversity between Tanzanian maize accessions and the International Maize and Wheat Improvement Center (CIMMYT) lines as a strategy to create heterotic groups for maize breeding. Thirty Tanzanian maize accessions (14 inbred lines, 8 open-pollinated varieties, and 8 landraces) and 10 tester lines from CIMMYT were studied to estimate the molecular genetic variability using Euclidean distance determined by simple sequence repeat (SSR) markers. Fifteen SSR markers, resulting in general maize alleles, were used to determine genetic diversity, where 13 markers were amplified with an average PIC of 0.73. Where a moderate genetic distance between Tanzanian maize accessions and resistant lines, ranging from 0.13 to 0.57, was determined. The 40 maize genotypes (testers and accessions) were studied by using SSR markers classified into three major groups and further divided into 5 subgroups, which were later used to create the heterotic groups. The heterotic groups drawn and determined in phylogenetic tree showed distinct variations among studied genotypes. The study concludes that there is significant (P < 0.001) genetic diversity among the maize genotypes, which are essential breeding materials for producing superior maize hybrids with high combining ability and high heritability of traits of interest, such as high yielding and resistance to aflatoxin contamination. Thus, Tanzanian maize breeders can utilize the available maize genotypes to develop hybrids with high yield and resistance to aflatoxin contamination.","PeriodicalId":9841,"journal":{"name":"Cereal Research Communications","volume":"37 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141172219","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}

引用次数: 0

Development of sheath blight resistant genotype of rice by mutation breeding and gene expression profiling after inoculation of Rhizoctonia solani 通过突变育种和接种根瘤菌后的基因表达谱分析培育水稻抗鞘枯病基因型

IF 1.6 4区农林科学

Cereal Research Communications Pub Date : 2024-05-25 DOI: 10.1007/s42976-024-00533-3

Reeshu Singh, Devendra Kumar Dwivedi, Anurag Mishra, Ashutosh Singh

{"title":"Development of sheath blight resistant genotype of rice by mutation breeding and gene expression profiling after inoculation of Rhizoctonia solani","authors":"Reeshu Singh, Devendra Kumar Dwivedi, Anurag Mishra, Ashutosh Singh","doi":"10.1007/s42976-024-00533-3","DOIUrl":"https://doi.org/10.1007/s42976-024-00533-3","url":null,"abstract":"Sheath blight (ShB) is one of the most economically devastating disease affecting rice (Oryza sativa L.) crop globally. It is caused by Rhizoctonia solani Kühn. Still, there is no rice variety available that is highly resistant to ShB. Mutation breeding is one of the potential options and very less explored to develop ShB-resistant cultivars. It introduces genetic variability in desired traits. In the present investigation, mutagen sodium azide 0.03% was used for mutation of the Swarna variety for the creation of variability of ShB resistance. All total 1000 M1 plants with control were screened for ShB resistance by artificial inoculation and based on disease scores of ShB 46 contrasting M2 lines for ShB resistance were selected. The M2 lines were screened under field and humid chamber conditions. In both conditions, mutant lines were performed consistently and identified highly resistant and susceptible ShB lines. A total of 7 contrasting M2 lines with control were used for protein expression analysis and resistant lines gave an extra band between 33 and 44 kDa. Further, it was confirmed by gene expression study these proteins were pathogen-related (PR) proteins and caused the tolerant nature of ShB resistant lines. Hence, this study provides ShB tolerant line that could be advanced and used for ShB resistant variety development. Overexpression of PR genes, which may be useful as targets for crop improvement is linked to disease resistance.","PeriodicalId":9841,"journal":{"name":"Cereal Research Communications","volume":"9 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141146543","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}

引用次数: 0

The introduction of pre-culture, washing and pre-selection stages enhances rice transformation efficiency by reducing Agrobacterium overgrowth 引入预培养、洗涤和预选阶段，通过减少农杆菌过度生长提高水稻转化效率

IF 1.6 4区农林科学

Cereal Research Communications Pub Date : 2024-05-24 DOI: 10.1007/s42976-024-00529-z

Monoj Sutradhar, Brijesh Kumar Singh, Subhasis Samanta, Md. Nasim Ali, Nirmal Mandal

{"title":"The introduction of pre-culture, washing and pre-selection stages enhances rice transformation efficiency by reducing Agrobacterium overgrowth","authors":"Monoj Sutradhar, Brijesh Kumar Singh, Subhasis Samanta, Md. Nasim Ali, Nirmal Mandal","doi":"10.1007/s42976-024-00529-z","DOIUrl":"https://doi.org/10.1007/s42976-024-00529-z","url":null,"abstract":"Agrobacterium tumefaciens-mediated rice transformation efficiency depends on several factors such as genotype, type of explant, media composition and growth regulators, co-cultivation conditions, antibiotics, temperature, A. tumefaciens strain and their cell density, gene construct, explant competence after wounding, and control of A. tumefaciens overgrowth. Most of these issues have been addressed earlier, but only for a few elite indica rice cultivars like IR64, IR72, Pusa Basmati 1, Samba Mahsuri, etc. Besides these, there are some local cultivars having considerable consumers' preference and farmers' choice. Considering these aspects, the objective of the study was to standardize the callus transformation technique. In our earlier study, a popular rice variety, Khitish (IET 4094) from West Bengal, was found to be the most amenable genotype for indirect regeneration. Hence, this variety was selected for transformation experiments with A. tumefaciens strain LBA4404 harbouring the binary vector pCAMBIA2301. Here, the co-cultivation-based transformation protocol was optimized by introducing several steps such as pre-culture in co-cultivation media before callus infection, washing with antibiotics dissolved in MS instead of water after co-cultivation, and pre-selection with only Agrobacterium elimination antibiotics after washing–drying step. To control the Agrobacterium, a combination of cefotaxime and timentin was used during these steps. This resulted in lowest Agrobacterium overgrowth and highest transformation frequency (28.2% in Khitish). The transient expression and stable integration of foreign gene were confirmed by GUS assay and PCR amplification of nptII selection marker gene in T0 plant genomic DNA, respectively.","PeriodicalId":9841,"journal":{"name":"Cereal Research Communications","volume":"59 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141146585","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}

引用次数: 0

An overview on salt-induced physiological changes, molecular mechanism of salinity tolerance and application strategies for its management in rice 盐诱导的生理变化、耐盐碱性的分子机理及水稻管理应用策略综述

IF 1.6 4区农林科学

Cereal Research Communications Pub Date : 2024-05-18 DOI: 10.1007/s42976-023-00487-y

Shahid Hussain, Rui Zhang, Yi Chen, Jinlong Li, Quaid Hussain, Adil Altaf, Yinglong Chen, Qigen Dai

{"title":"An overview on salt-induced physiological changes, molecular mechanism of salinity tolerance and application strategies for its management in rice","authors":"Shahid Hussain, Rui Zhang, Yi Chen, Jinlong Li, Quaid Hussain, Adil Altaf, Yinglong Chen, Qigen Dai","doi":"10.1007/s42976-023-00487-y","DOIUrl":"https://doi.org/10.1007/s42976-023-00487-y","url":null,"abstract":"Low yields of crops, especially rice, are caused by climate change and environmental stress concerns such as drought, temperature fluctuations, and salinity in arid and semi-arid locations around the globe. Rice is one of the essential crops for human consumption and one of the most commonly farmed cereals on the planet earth, but its growth is severely retarded by excessive salt, which influences rice development and production, leading to economic loss. Salt stress induces osmotic stress and ionic toxicity in rice by altering the environment, leading to water deprivation and accumulation of toxic ions, thereby triggering specific physiological and molecular responses in the rice plants. Many factors may affect rice production and cereal quality via its interaction with salinity. This review focuses on some influential factors (photosynthesis, osmosis, micro and macronutrients, microbial flora, rice growth, development, and genes) that may reduce rice production in saline soils. The review also describes the responsive mechanism of rice to salinity and the genetic susceptibility of rice. In light of the challenges posed by the growing global population and limited agricultural land, it is imperative to consider the influential factors discussed in this review, along with genetic susceptibility to improve rice production in terms of quantity and quality under saline soil conditions.","PeriodicalId":9841,"journal":{"name":"Cereal Research Communications","volume":"253 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141061161","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}

引用次数: 0

Identification of low phosphorus tolerant parental lines of hybrid rice based on stress indices and haplotype analysis using Pup1 linked markers 基于胁迫指数和使用 Pup1 连接标记的单倍型分析鉴定杂交水稻耐低磷亲本品系

IF 1.6 4区农林科学

Cereal Research Communications Pub Date : 2024-05-02 DOI: 10.1007/s42976-024-00521-7

N. Madhusudan, R. M. Sundaram, P. Beulah, V. Jaldhani, M. R. Lakshmikanth, M. S. Anantha, P. Revathi, C. Gireesh, R. Gobinath, H. K. Mahadeva Swamy, A. S. HariPrasad, R. Mahender Kumar, K. V. Radhakrishna, P. Senguttuvel

{"title":"Identification of low phosphorus tolerant parental lines of hybrid rice based on stress indices and haplotype analysis using Pup1 linked markers","authors":"N. Madhusudan, R. M. Sundaram, P. Beulah, V. Jaldhani, M. R. Lakshmikanth, M. S. Anantha, P. Revathi, C. Gireesh, R. Gobinath, H. K. Mahadeva Swamy, A. S. HariPrasad, R. Mahender Kumar, K. V. Radhakrishna, P. Senguttuvel","doi":"10.1007/s42976-024-00521-7","DOIUrl":"https://doi.org/10.1007/s42976-024-00521-7","url":null,"abstract":"Phosphorus (P) stands as a crucial macronutrient, indispensable for a multitude of plant functions and a requisite for all crops, including rice. In Indian soil, the P content typically ranges from low to medium, dictating the application of P for targeted crop returns. The development of rice varieties resilient to low soil P has gained significance in ensuring future food security. To address this, 55 parental lines of rice hybrids were evaluated under both low and normal levels of soil P. The evaluation included identifying the presence or absence of the tolerant allele related to the major low soil P tolerance QTL, Pup1, using specific PCR-based markers-namely, K46-1, K46-2, K48 and K59. Stress indices were computed by comparing yields under low soil P (Ys) and normal soil P (Yp) conditions, revealing seven out of 55 parental lines to be categorized as low soil P tolerant. These lines demonstrated minimal yield reduction compared to the checks, with a majority carrying either the complete or partial Pup1 locus. Notably, the genotypes PSV-41 and Rasi, lacking the Pup1 locus, exhibited superior tolerance under low soil P conditions. Through biplot analysis utilizing Yp and Ys stress indices, promising genotypes such as AYT21, ATR-305, Rasi, RP bio 4919–50–13 and AR 19–42R were identified under low soil P conditions. These low soil P tolerant parental lines hold potential as donors and for generating low soil P tolerant rice hybrids in future breeding endeavors.","PeriodicalId":9841,"journal":{"name":"Cereal Research Communications","volume":"62 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140886191","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}

引用次数: 0

Performance of a durum wheat diversity panel under different management systems 不同管理系统下硬质小麦多样性面板的表现

IF 1.6 4区农林科学

Cereal Research Communications Pub Date : 2024-04-27 DOI: 10.1007/s42976-024-00517-3

Mónika Cséplő, Katalin Puskás, Gyula Vida, Klára Mészáros, Andrea Uhrin, Viola Tóth, Zsuzsanna Ambrózy, Heinrich Grausgruber, Luca Bonfiglioli, Mario Augusto Pagnotta, Ieva Urbanavičiūtė, Péter Mikó, Judit Bányai

{"title":"Performance of a durum wheat diversity panel under different management systems","authors":"Mónika Cséplő, Katalin Puskás, Gyula Vida, Klára Mészáros, Andrea Uhrin, Viola Tóth, Zsuzsanna Ambrózy, Heinrich Grausgruber, Luca Bonfiglioli, Mario Augusto Pagnotta, Ieva Urbanavičiūtė, Péter Mikó, Judit Bányai","doi":"10.1007/s42976-024-00517-3","DOIUrl":"https://doi.org/10.1007/s42976-024-00517-3","url":null,"abstract":"Thirty winter and spring durum wheat varieties and breeding lines were evaluated between 2020 and 2022 under low-input, conventional and organic management. Analysis of variance revealed statistically significant effects for the year, management, genotype and their interactions for heading, lodging, grain yield, grain width and length, test weight and thousand grain weight. In the case of ground cover, the genotype × management and the genotype × management × year interactions were not significant. In 2020 and 2022, the latest heading variety ‘Mv Makaróni’ headed on 20th and 21st of May, respectively, whilst in 2021, due to the rainy and cold spring weather, 73% of the varieties started to head only after this date. Lodging was observed only on the conventional sites in two years. The average yield of the experiment was 5.94 t ha−1. For grain yield ‘Mv Vékadur’ and ‘NS Dur’ in the low-input and conventional trials, and genotypes ‘Sambadur’, ‘NS Žad’ and line MVTD12-23 in the organic trials were found as highly stable and best performing genotypes. Significant positive correlations were found between grain width and grain weight. Early ground coverage was measured in all three managements across two years and resulted in significant positive correlation with grain yield.","PeriodicalId":9841,"journal":{"name":"Cereal Research Communications","volume":"80 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140811709","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}

引用次数: 0

Enhancing nitrogen use efficiency in cereal crops: from agronomy to genomic perspectives 提高谷类作物的氮利用效率：从农艺学到基因组学的视角

IF 1.6 4区农林科学

Cereal Research Communications Pub Date : 2024-04-17 DOI: 10.1007/s42976-024-00515-5

Riasat Azim Ibn, Uttam Kumar Ghosh, Md. Saddam Hossain, Apple Mahmud, Anik Kumar Saha, Md. Mizanur Rahman, M. A. Rahman, Md. Nurealam Siddiqui, Md. Arifur Rahman Khan

{"title":"Enhancing nitrogen use efficiency in cereal crops: from agronomy to genomic perspectives","authors":"Riasat Azim Ibn, Uttam Kumar Ghosh, Md. Saddam Hossain, Apple Mahmud, Anik Kumar Saha, Md. Mizanur Rahman, M. A. Rahman, Md. Nurealam Siddiqui, Md. Arifur Rahman Khan","doi":"10.1007/s42976-024-00515-5","DOIUrl":"https://doi.org/10.1007/s42976-024-00515-5","url":null,"abstract":"Cereal crops are the most important grain crops and are extensively cultivated around the world due to their nutritional value, fodder, and biofuel production. The significant increase in cereal grain yield is primarily attributed to the application of inorganic nitrogenous fertilizer. But the inefficient utilization of the fertilizer leads to leftover N, which has a negative impact on human health and the environment. Hence, a pressing priority is to enhance nitrogen use efficiency (NUE) in crop cultivation through improved management practices. Additionally, it is important to assess how NUE interacts with the plant characteristics. NUE depends on the absorption and distribution of nitrogen through enhanced root architecture and transporters, processing, and remobilization within storage organs. Moreover, NUE is determined by N distribution across roots, stems, leaves, grains, photosynthetic capacity, and leaf senescence. Information on the scope of exploitable genetic variability and their genetic control is needed to increase NUE through genetic modifications. In this review, we provide an integrated approach that combines agronomy, physiology, genetics, and genomics for a comprehensive understanding of the critical components involved in NUE. This understanding is crucial for developing crop management practices and identifying promising key genetic factors to improve NUE in cereals.","PeriodicalId":9841,"journal":{"name":"Cereal Research Communications","volume":"1 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140627935","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}

引用次数: 0

Spelt wheat resistance to rusts, powdery mildew, leaf blotch and common bunt 斯佩耳特小麦对锈病、白粉病、叶斑病和常见疫病的抗性

IF 1.6 4区农林科学

Cereal Research Communications Pub Date : 2024-04-17 DOI: 10.1007/s42976-024-00516-4

Veronika Dumalasová, Heinrich Grausgruber, Ondřej Zelba, Alena Hanzalová, Hermann Buerstmayr, Verena Weyermann, Franca dell’Avo, Catherine Cuendet, Reine Koppel, Pille Sooväli, Almuth Elise Muellner

{"title":"Spelt wheat resistance to rusts, powdery mildew, leaf blotch and common bunt","authors":"Veronika Dumalasová, Heinrich Grausgruber, Ondřej Zelba, Alena Hanzalová, Hermann Buerstmayr, Verena Weyermann, Franca dell’Avo, Catherine Cuendet, Reine Koppel, Pille Sooväli, Almuth Elise Muellner","doi":"10.1007/s42976-024-00516-4","DOIUrl":"https://doi.org/10.1007/s42976-024-00516-4","url":null,"abstract":"A spelt diversity panel including 80 genotypes of winter spelt was tested for resistance to common bunt, leaf blotch, powdery mildew, leaf rust, stem rust and yellow rust. The reaction to diseases was investigated in field trials carried out at multiple European locations between 2013 and 2019. Resistance was assessed after artificial inoculation or natural infestation by visual scoring of symptoms. The presence of rust resistance genes was postulated using molecular markers. It was found that the presence of hulls plays a role as a passive resistance factor against common bunt. The risk of fungal diseases in spelt is not negligible. Genotypes with low disease severity in all environments as well as combined resistance to multiple diseases were determined. Across all test environments, spelt genotypes ʻSofia 1ʼ and ʻAlbinʼ showed a very low disease infestation by common bunt, ʻSofia 1ʼ, ʻRiniken Weißkornʼ, ʻZürcher Oberländer Rotkornʼ and ʻToess 5Bʼ by leaf blotch, ʻSpeltvete från Gotlandʼ by yellow rust and ʻSofia 1ʼ by leaf rust and stem rust. The influence of the breeding period was examined, and differences between modern and old varieties/landraces have not been proven. The results obtained can be used for the selection of suitable parental material for breeding spelt with improved disease resistance.","PeriodicalId":9841,"journal":{"name":"Cereal Research Communications","volume":"50 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140615428","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}

引用次数: 0

Barley awn dimensions and barbs changes under terminal drought stress and its relation to grain yield and carbon isotope discrimination 终期干旱胁迫下大麦芒的尺寸和倒刺变化及其与籽粒产量和碳同位素鉴别的关系

IF 1.6 4区农林科学

Cereal Research Communications Pub Date : 2024-04-10 DOI: 10.1007/s42976-024-00511-9

Sanaz Afshari-Behbahanizadeh, Gholam-Ali Akbari, Maryam Shahbazi, Sepideh Sanjari, Fulvia Rizza, Franz-Werner Badeck, Leila Farahani, Iraj Alahdadi

{"title":"Barley awn dimensions and barbs changes under terminal drought stress and its relation to grain yield and carbon isotope discrimination","authors":"Sanaz Afshari-Behbahanizadeh, Gholam-Ali Akbari, Maryam Shahbazi, Sepideh Sanjari, Fulvia Rizza, Franz-Werner Badeck, Leila Farahani, Iraj Alahdadi","doi":"10.1007/s42976-024-00511-9","DOIUrl":"https://doi.org/10.1007/s42976-024-00511-9","url":null,"abstract":"Awns illustrate an important photosynthetic organ of the cereal spike, especially under water stress. Barley (Hordeum vulgare L.) spikes are distinguished by long awns; nevertheless, the actual changes in barley awn dimensions under drought stress have not been adequately studied. In the present work, six barley genotypes with varying degrees of drought tolerance were investigated in a 2-year field experiment under well-watered (WW) and terminal drought stress (TDS) conditions based on randomized complete block design with three replications. The results showed that although TDS caused a notable reduction in awn dimensions compared to WW, the density of barbs on the awn surface significantly increased in all barley genotypes. In addition, the barb contact angle decreased significantly under TDS conditions compared to WW. Awn area had a significantly positive correlation with thousand grain weight and grain yield in both treatments and growing seasons. Also, highly significant correlations were observed between leaf stomatal conductance, awn area, and barb density under both conditions. In TDS, two genotypes demonstrated lower carbon isotope discrimination: Morocco, with higher awn dimensions, and PBYT 46, with a higher increase in barbs density on the awn surface and a lower canopy temperature. This research underlines barbs density on the awn surface by reflecting the light and a lower increase in the canopy temperature plays a more pivotal role than awn dimensions on water use efficiency in barley under terminal drought.","PeriodicalId":9841,"journal":{"name":"Cereal Research Communications","volume":"89 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140574026","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}

引用次数: 0