Journal of Agronomy and Crop Science最新文献

{"title":"Effective Rhizobia Relieve Negative Effects of Drought Stress During the Vegetative Stage in Soybean Under Field Conditions","authors":"Malinda S. Thilakarathna,&nbsp;Sophie Watts,&nbsp;Michelle E. H. Thompson,&nbsp;Travis Goron,&nbsp;Chathuranga De Silva,&nbsp;Godfrey Chu,&nbsp;Krzysztof Szczyglowski,&nbsp;Malcolm J. Morrison,&nbsp;Manish N. Raizada","doi":"10.1111/jac.70073","DOIUrl":"https://doi.org/10.1111/jac.70073","url":null,"abstract":"<p>Soybean (<i>Glycine max</i> L.) forms a symbiotic relationship with compatible soil rhizobia, enabling biological nitrogen fixation. Among numerous factors, moisture deficit is a major challenge to soybean production due to its direct impact on the ability to fix nitrogen. The aim of this study was to assess whether effective rhizobia strains could alleviate the impact of early-onset drought stress during the vegetative growth of soybeans under field conditions. A 2-year field study was conducted in Wellington County, Ontario, Canada, examining three different rhizobia treatments, including low-nitrogen-fixing <i>Bradyrhizobium elkanii</i> USDA 76, high-nitrogen-fixing <i>Bradyrhizobium japonicum</i> USDA 110, and a commercial inoculant, compared to the uninoculated-0 N control and uninoculated-urea 150 kg N ha⁻¹ treatments, under irrigated and nonirrigated conditions. Data were collected at V2, R1, R3, R5 and R7 growth stages and at seed maturity. Results indicated that the number of nodules and nodule dry weight was reduced under drought stress. However, plants demonstrated recovery from these negative effects in the later part of the growing season with USDA 110 and commercial inoculant application, particularly following rainfall events. Therefore, soybeans exposed to drought during the early planting period up to ~R5 growth stage could still recover nitrogen fixation traits, as evidenced by increased nodule number and nodule dry weight. Higher levels of grain δ¹⁵N in rhizobia-inoculated plants under drought conditions in 2016, compared to the irrigated plants, confirmed the drought-impaired biological nitrogen fixation. However, effective rhizobia inoculants, such as commercial inoculants and USDA 110, demonstrated similar or even higher yields compared to urea-supplemented plants under drought conditions, underscoring their beneficial role in soybean production under challenging environments.</p>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 4","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jac.70073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144220343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of High Temperatures on Pollen Germination and Physio-Morphological Traits in Upland Cotton (Gossypium hirsutum L.)","authors":"Washu Dev,&nbsp;Fahmida Sultana,&nbsp;Shoupu He,&nbsp;Daowu Hu,&nbsp;Xiaoli Geng,&nbsp;Xiongming Du,&nbsp;Babar Iqbal","doi":"10.1111/jac.70080","DOIUrl":"https://doi.org/10.1111/jac.70080","url":null,"abstract":"<div>\u0000 \u0000 <p>Cotton, an essential part of the worldwide textile sector, is very vulnerable to heat stress (HS), which endangers its development and output. This research assessed 18 upland cotton varieties to pinpoint resilient genotypes under heat stress by examining their physiological and morphological reactions. In the years 2019–2020, characteristics like pollen viability, cell membrane thermostability, boll weight, lint percentage and fibre quality were evaluated. Statistical analyses indicated considerable variation among cultivars under HS, showing positive correlations between pollen viability, fibre length and lint percentage, as well as a strong relationship between lint percentage and boll weight. Principal component analysis revealed clear groups of physiological, agronomic and fibre quality characteristics. Genotypes were classified into four categories: CS-85, X-62 and X-84 exhibited outstanding combined physiological and agronomic resilience, whereas MCU-5, D-55, HG-BR-8 and ZC excelled in morphological characteristics; R-89 and S-5 displayed improved lint percentage and fibre length. These results highlight the promise of particular cultivars to guide breeding initiatives aimed at developing heat-resistant cotton varieties, tackling the difficulties created by increasing global temperatures.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 4","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evapotranspiration and Crop Coefficients Across Different Land-Use Types in a Desert Oasis Agroforestry Ecosystem of Northwestern China","authors":"Yuanyuan Chai,&nbsp;Hu Liu,&nbsp;Qiyue Yang,&nbsp;Wenzhi Zhao,&nbsp;Li Guo,&nbsp;Jintao Liu,&nbsp;Xiaoyou Zhang,&nbsp;Omer Yetemen","doi":"10.1111/jac.70079","DOIUrl":"https://doi.org/10.1111/jac.70079","url":null,"abstract":"<div>\u0000 \u0000 <p>Estimating site-specific actual evapotranspiration (ET_<i>a</i>) and crop coefficients (K_<i>c</i> ) could better assist in precise irrigation management and in balancing the limited water resources in semiarid and arid regions. However, most of the traditional methods have limitations for small agricultural plots and shelterbelts, which are the major land-use types in these regions. A soil moisture data-driven method based on an inverse solution of the Richards' equation was used in this study to estimate ET_<i>a</i> and K_<i>c</i> across different land-use types in the middle Heihe River Basin (HRB, typical of desert oasis agroforestry ecosystems) in arid northwestern China. Thirteen sites with different vegetation covers (eight crop sites and five shelterbelt sites, with soil moisture data measured at 20-cm intervals within depths of 100 or 200 cm in 2018) were selected for the calculation. The results showed that the crop sites overall had larger seasonal ET_<i>a</i> values than the shelterbelt sites because they were subjected to less water stress. At the crop sites, ET_<i>a</i> processes showed common seasonal trends, with intercropped field maize having the largest water consumption (494–511 mm), and seed maize having the least (387–404 mm). However, ET_<i>a</i> rates at the shelterbelt sites (except for the site with jujube) sharply decreased in summer possibly because of reduced photosynthetic activity under water stress. The tree species with the largest water consumption (393 mm) was jujube, followed by Gansu poplar (379 mm), and the species with the least (177 mm) was Mongolian pine. The results also showed that the K_<i>c</i> curves at the crop sites followed patterns similar to the generalised FAO-style curve. However, the K_<i>c</i> curves at the shelterbelt sites were distinctly different from those at the crop sites, possibly because of tree species-specific adjustments to reduce water loss in summer. This study demonstrates the potential of the soil moisture data-driven method to estimate site-specific ET_<i>a</i> and K_<i>c</i> and provides an alternative method for water managers and policy makers to estimate actual water consumption, using a straightforward and easy approach, focusing on the diverse land-use types in this water-limited region.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 4","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144179380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mungbean Response to Regulated Deficit Irrigation: A Trade-Off Between Productivity and Adaptability?","authors":"Lisa Pataczek,&nbsp;Tim Hakenberg,&nbsp;Thomas Hilger,&nbsp;Ramakrishnan M. Nair,&nbsp;Roland Schafleitner,&nbsp;Folkard Asch,&nbsp;Georg Cadisch","doi":"10.1111/jac.70070","DOIUrl":"https://doi.org/10.1111/jac.70070","url":null,"abstract":"<p>Water scarcity, elevated temperatures, as well as pests and diseases have been demonstrated to have a detrimental effect on the yield potential of mungbean (<i>Vigna radiata</i>). The cultivation of improved mungbean genotypes with regulated deficit irrigation (RDI), a water-saving irrigation strategy, has been identified as a promising approach to enhance yield stability of the crop and ensure food security. Thus, the purpose of this study was to identify adaptation strategies and possible trade-offs to drought of mungbean genotypes under deficit irrigation and the effect on yield by investigating in particular assimilate re-allocation. Four genotypes (NM11, AVMU 1604, AVMU 1635, KPS2) were cultivated in a greenhouse under three treatments of RDI with depletion fractions as a percentage of total available soil water (TAW) of 0.45, 0.65, and 0.8, corresponding to a recommended irrigation schedule, moderate and severe water deficit, respectively. Samples were collected at the flowering and maturity stages, and the dry matter, dry matter partitioning, yield, harvest index, pod harvest index, water use efficiency, and carbon-13 isotope discrimination to estimate transpiration efficiency were determined. The study found that productivity (i.e., grain yield) was not lowered as a trade-off of adaptability to water deficit irrigation. The genotypes either did not respond to deficit irrigation (KPS2 and AVMU 1635) in terms of grain yield or exhibited increased remobilisation of assimilates, either from pod walls to seeds (NM11) or from vegetative plant parts to pods/seeds (AVMU 1604), thereby increasing yields by 38% and 52%, respectively, under water deficit. However, the genotype KPS2 demonstrated stable yields and the greatest harvest index/pod harvest index (36%/69%) across all RDI treatments, suggesting superior adaptability to fluctuating water availability and efficient resource allocation, providing a suitable choice for a range of environmental conditions.</p>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 4","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jac.70070","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Irrigation at an Early Growth Stage in Water-Limited Conditions Improves Wheat Nitrogen Use","authors":"Daniel Wasonga,&nbsp;Jenna Unnaslahti,&nbsp;Ahmadreza Dehghanitafti,&nbsp;Pirjo Mäkelä","doi":"10.1111/jac.70078","DOIUrl":"https://doi.org/10.1111/jac.70078","url":null,"abstract":"<p>Water and nitrogen (N) limitations are major abiotic stress factors constraining cereal productivity, particularly when they coincide with critical growth stages. In boreal-nemoral environments, limited spring precipitation and high evaporative demand often lead to water scarcity, which in turn limits N uptake and assimilation. This study investigated the effects of early growth stage irrigation on wheat (<i>Triticum aestivum</i> L. emend. Thell) performance under conditions of insufficient available N. Experiments were conducted in controlled conditions in a greenhouse with either irrigated or nonirrigated spring wheat that were either N fertilised (150 kg N ha⁻¹) or unfertilised (0 kg N ha⁻¹). Wheat grown under combined irrigation and N supply exhibited significantly greater water and N uptake, photosynthetic rate and stomatal conductance, compared to treatments with limited water and/or N. Irrigation improved agronomic N use efficiency by 75%, fertiliser N recovery by 44%, and both N translocation and remobilisation efficiency by 16% compared with nonirrigated wheat. Nitrogen deficiency stress reduced fertile florets per spike, grain number, grain weight and final grain yield, but early-stage irrigation mitigated these effects. Key parameters for optimising N use efficiency included N uptake efficiency (<i>R</i>² = 0.78), utilisation efficiency (<i>R</i>² = 0.84) and grain N yield (<i>R</i>² = 0.79). In conclusion, early growth stage irrigation markedly improved N utilisation in conditions where limited water availability restricts spring wheat growth and yield formation.</p>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jac.70078","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genomic Identification, Evolution, Taxonomy and Expression Analysis of Cell Wall Lignifying DIRIGENT (DIR) PROTEIN Genes Under Drought Stress in Jatropha curcas L.","authors":"Abdul Jalal,&nbsp;Zhenghao Zhang,&nbsp;Yongli Wang,&nbsp;Lina Zhang,&nbsp;Daochen Zhu","doi":"10.1111/jac.70075","DOIUrl":"https://doi.org/10.1111/jac.70075","url":null,"abstract":"<div>\u0000 \u0000 <p>Dirigent (DIR) proteins, localised at cell wall, are involved in phenoxy radical coupling reactions during lignin biosynthesis in plant species and provide resistivity against adverse environmental conditions. The sub family distribution of <i>DIR</i> genes are different among plant species. In present study, we genome wide identified 28 <i>DIR</i> domain containing genes in <i>Jatropha curcas</i>. The phylogenetic analysis classified <i>DIR</i> genes into three distinct subfamilies distributed among clades. The taxonomy of <i>DIR</i> genes into three subfamilies were further confirmed via pairwise sequence similarity as ‘lignan-forming subfamily’ (<i>DIR</i>-a), ‘lignin-forming subfamily’ (<i>DIR</i>-e) and ‘cell wall signaling subfamily’ (<i>DIR</i>-g). The evolutionary aspects of <i>DIR</i> genes evaluated by divergence analysis further recognised the synonymous and non-synonymous changes. We have also studied the molecular characterisation of <i>DIR</i> genes within Jatropha genome for its gene structure organisation, the presence of Light responsive, phytohormone responsive, plant growth responsive and stress responsive cis-regulatory elements in the promotor region, co-expression network with lignin biosynthesis genes, and predicted <i>miRNA</i> target sites, regulated by <i>miRNA</i> mediated post transcriptional regulatory network. Moreover, the biological process enrichment based on gene ontology further revealed the involvement of <i>DIR</i> genes in biosynthetic process of phenylpropanoid and organic substance as well as cellular metabolic process. Subsequently, the co-occurrence of <i>DIR</i> genes with streptophyta taxa's was confirmed mostly in eukaryota. Furthermore, the expression profiles of <i>DIR</i> genes in different tissues of Jatropha under drought stress exhibited significant differential expression. This study provide basis for functional divergence of <i>DIR</i> genes in lignifying plant cell wall and providing protection against environmental stresses in plants.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High Daytime and High Nighttime Temperatures Affect the Leaf Photosynthetic Characteristics of Waxy Maize (Zea mays L. var. ceratina Kulesh) During Grain Formation","authors":"Jian Guo,&nbsp;Zihan Wang,&nbsp;Xiaotian Gu,&nbsp;Guanghao Li,&nbsp;Huan Yang,&nbsp;Dalei Lu","doi":"10.1111/jac.70076","DOIUrl":"https://doi.org/10.1111/jac.70076","url":null,"abstract":"<div>\u0000 \u0000 <p>Day and night high temperatures (HT) has become an inevitable environmental factor in maize production. However, few studies have compared the differences in photosynthetic characteristics of leaves and yield formation during grain filling under daytime HT (DH) and nighttime HT (NH). This study utilised waxy maize and a temperature-controlled pot experiment to assess the impacts of DH, NH and the combination of DH and NH (DNH) treatments at the early filling stage. Compared to the control, three HT treatments resulted in the decrease of grain weight and volume at the middle and late filling stage, and the degree of influence was DNH &gt; DH &gt; NH. During the grain-filling process, DNH and DH treatments reduced the leaf water content, disturbed protein biosynthesis and antioxidant system, accelerated chlorophyll hydrolysis, inhibited phosphoenolpyruvate carboxylase and Ribulose-1,5-bisphosphate carboxylase activities, and reduced post-silking dry matter accumulation and translocation. DNH and DH treatments affected leaf photosynthetic efficiency by changing the gas exchange parameters and PSII reaction, which in turn influenced the maximum photochemical efficiency, electron transport rate, and energy conversion. However, NH treatment only affected some stages of grain filling and had less effect on protein synthesis and antioxidant enzyme activity than DH and DNH. These new findings complement the comparison between DNH in photosynthetic characteristics and yield of waxy maize.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphological and Physiological Changes Caused by Weak Light in Early Stage Bringing About Photosynthetic Performance Decreasing and Yield Loss in Sweet Potato (Ipomoea batatas L.)","authors":"Changwen Lyu,&nbsp;Ya Jiang,&nbsp;Chao Wu,&nbsp;Hong Huang,&nbsp;Huanhuan Qiao,&nbsp;Cheng Jiang,&nbsp;Jichun Wang,&nbsp;Daobin Tang,&nbsp;Kang Du,&nbsp;Kai Zhang","doi":"10.1111/jac.70065","DOIUrl":"https://doi.org/10.1111/jac.70065","url":null,"abstract":"<div>\u0000 \u0000 <p>In the relay intercropping of maize and sweet potato, maize brought 40–70 days of shading stress on sweet potato; thus, sweet potato yield was reduced. Morphological and physiological impacts of weak light or shading stress on sweet potato in the early stage are not known. We hypothesised that shading stress would change morphogenesis and physiology of sweet potato in the early stage that leads to low yield. To test this hypothesis, we simulated the shading stress using weak light and applied the shade stress onto two sweet potato cultivars, Yushu-17 and Qianshu-8. Results showed that 45-day weak light caused abnormal growth of sweet potato seedlings. The weak light triggered a smaller diameter, longer internodes and extended length of the main vines on both cultivars. The fresh weight of stems and leaves was less than that under normal light. It was also found that weak light promoted the accumulation of proline (Pro) and malondialdehyde (MDA) that influence osmotic status of the vines. Weak light elevated the activities of both superoxide dismutase (SOD) and catalase (CAT). Although weak light enhanced the content of chlorophyll, it inhibited the net photosynthetic rate (Pn) and sucrose phosphate synthase (SPS), and delayed root development. The yield loss was not reversed by resuming normal light after 60 days of weak light. We conclude that weak light in the early stage impedes normal morphogenesis by disturbing osmotic status and adversely impacting antioxidant and photosynthetic enzymes that led to abnormal growth of the main vines and roots, thus causing yield reduction. These findings may explain the negative impact of the shading stress by maize on the yield of sweet potato in the field.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insights Into the Salt Tolerance of Lentil (Lens culinaris Medik): Characterisation of Germplasm Resource to Accelerate Crop Improvement","authors":"Pooja Kanwar Shekhawat,&nbsp;Jakhar Mohan Lal,&nbsp;Punia Sumer Singh,&nbsp;Jogendra Singh,&nbsp;K T Ravikiran,&nbsp;Vijayata Singh","doi":"10.1111/jac.70056","DOIUrl":"10.1111/jac.70056","url":null,"abstract":"<div>\u0000 \u0000 <p>Evaluating diversity panels for their ability to endure salt stress conditions is essential for the development of breeding lines. A set of 100 lentil genotypes was characterised for their salt tolerance during 2021–22 and 2022–23. Salt stress lead to an average reduction of 43.96% in plant height, 19.46% in primary branches per plant, 44.45% in pods per plant, 47.26% in seed weight, 36.39% in photosynthetic rate (Pn), 34.03% in transpiration rate, 33.95% in stomatal conductance (gsw), 27.75% in chlorophyll content, 30.04% in relative water content and 18.99% in membrane stability index (MSI). The K⁺ content decreased while the Na⁺ content increased in plant tissues of all genotypes with higher salt levels. Notably, genotypes IC241532, IC241529, LL1813, EC223237B, KM4, IC78387, LL1804, KM1, LL1823, LL1641, IC78387 and EC223212A demonstrated superior performance due to an enhanced antioxidant system. It was evidenced by increased proline content, alongside increased activity of superoxide dismutase, catalase, glutathione reductase, aspartate peroxidase activity and higher total soluble sugar content. Interestingly, a positive correlation was observed between yield per plant (YPP) and seed K⁺, shoot K⁺, Pn, gsw, shoot fresh weight (SFW) and root fresh weight (RFW) highlighting the importance of these key traits in enhancing plant tolerance to salt stress. Principal component analysis of 26 indices indicated a considerable level of genotypic variability among genotypes as well as a significant correlation between YPP and SFW, RFW under control and Pn, MSI, gsw, SFW, root dry weight (RDW) and 100-seed weight under salt stress. This study provides valuable insights into diverse lentil genotypes' agro-physiological and antioxidant responses to salt stress.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143933109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of High Potential-Yielding of Naked Barley Genotypes Under Saline-Alkaline Soil Condition","authors":"Jakkrit Sreesaeng,&nbsp;Cheng-Wei Qiu,&nbsp;Shuo Zhang,&nbsp;Shou-Heng Shi,&nbsp;Qing-Qing Wang,&nbsp;Feibo Wu","doi":"10.1111/jac.70066","DOIUrl":"https://doi.org/10.1111/jac.70066","url":null,"abstract":"<div>\u0000 \u0000 <p>Salinity stress is becoming an increasingly severe global challenge, necessitating the identification of crop germplasm capable of thriving in saline-alkaline soil conditions to ensure high yields. Naked barley (<i>Hordeum vulgare</i> var. <i>nudum</i>) emerges as a promising candidate due to its resilience to abiotic stresses, high nutritional value, and potential for sustainable production. In this study, a preliminary screening of 440 naked barley genotypes was conducted under saline soil conditions. Key indices, including yield and eleven yield-related components, were evaluated using multivariate analysis techniques such as principal component analysis (PCA), correlation coefficient analysis, and hierarchical cluster analysis. The results demonstrated that spike weight, seed number per row, fully developed seeds per spike, seed weight per spike, thousand-seed weight, and seed width significantly influenced grain yield under saline-alkaline conditions, as indicated by correlation coefficients and PCA. Yield performance classification revealed that 11% of the genotypes were high-yielding, 29% were moderate-yielding, and 60% were low-yielding. Hierarchical cluster analysis further identified that the first cluster (C1), which includes a total of 150 genotypes, exhibited the highest mean values for most of the traits examined. Within this cluster, notable genotypes (X511, X185, X421, X188, X322, X184, X350, X323, X349, and X338) demonstrated yields ranging from 4.32 to 6.68 t/ha. These genotypes, grouped in sub-cluster C1.1.1, represent promising candidates for breeding programmes aimed at enhancing yield and salinity tolerance. This study provides an initial screening of yield potential and lays the foundation for future research into the physiological, biochemical, and molecular mechanisms underlying salinity tolerance and breeding.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 3","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}