Journal of Agronomy and Crop Science最新文献

{"title":"Evaluating Wheat Pre-Harvest Sprouting Risk Using Indicator Based on Meteorological Data From 1981 to 2020 in China","authors":"Yu Hu,&nbsp;Yinan Sang,&nbsp;Meiling Li,&nbsp;Weiguo Hu,&nbsp;Bingxue Liu,&nbsp;Pengyu Huang,&nbsp;Di Kang,&nbsp;Yanghua Liu,&nbsp;Donghong Min,&nbsp;Yulong Song","doi":"10.1111/jac.70041","DOIUrl":"https://doi.org/10.1111/jac.70041","url":null,"abstract":"<div>\u0000 \u0000 <p>The occurrence of wheat pre-harvest sprouting (PHS) has been intensified with global climatic change and increasing rainfall from 1981 to 2020, which has led to a drastic reduction in wheat quality and yield. Therefore, scientific assessments of the potential climatic risk of wheat PHS in different areas based on historical meteorological data help identify the high-risk areas, select suitable wheat cultivars and optimise cultivation measures for wheat production. However, to date, risk assessment criteria have not been established for evaluating the potential climatic risks associated with wheat PHS in different areas. This study analysed temperature and relative humidity change trends and identified the boundary line between the Yellow and Huai River Valley Facultative Wheat Zone and the Middle and Lower Yangtze River Valley Winter Wheat Zone using climatically similar points. The experimental material comprised the wheat PHS-sensitive variety Xiaoyan 22. Wheat PHS risk assessment criteria were proposed based on the whole ear germination test and daily temperature and relative humidity data collected during the wheat harvest period from 1981 to 2020 in the two wheat regions. The climatic risk associated with wheat PHS was graded for these two areas. Our results showed that from 1981 to 2020, the temperature increased by 0.38°C/10 years and 0.26°C/10 years, while the relative humidity decreased by 1.8%/10 years and 0.39%/10 years during the wheat harvest period in the two wheat regions. Further analysis of the factors influencing the climate boundary between the Yellow and Huai River Valley Facultative Wheat Zone and the Middle and Lower Yangtze River Valley Winter Wheat Zone revealed that, from 1986 to 2020, the eastern section of the climate boundary exhibited significant southward or northward migration trends in Anhui and Jiangsu Provinces. The central section of the similar climate boundary in Henan and Hubei Provinces also showed a southward trend but a relatively small range, whereas the western section fluctuated up and down the original dividing line, with a northward migration trend in Gansu Province. A new risk assessment indicator, P, was proposed in this study based on meteorological data from 1981 to 2020 in China. During this period, the wheat PHS risk increased from north to south and west to east in the Yellow and Huai River Valley Facultative Wheat Zone and from north to south in the Middle and Lower Yangtze River Valley Winter Wheat Zone. Furthermore, the overall wheat PHS climate risk in the Yellow and Huai River Valley Facultative Wheat Zone was lower than that in the Middle and Lower Yangtze River Valley Winter Wheat Zone. Risk assessments of wheat PHS distribution and damage will provide a scientific basis for the accurate distribution of pre-harvest sprouting-resistant wheat varieties and improve the resistance to natural disasters and the safety of wheat production.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 2","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533453","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":"Lower Demand for Boll Dry Matter Accumulation and Higher Harvestable Bolls Ensure the Yield and Quality Advantages of Small Boll Cotton Under Water-Deficit Conditions","authors":"Yongchao Han,&nbsp;Honghai Luo,&nbsp;Qian-Hao Zhu,&nbsp;Chong Yang,&nbsp;Ruiting Zheng,&nbsp;Fei Xue,&nbsp;Jie Sun,&nbsp;Xinyu Zhang,&nbsp;Feng Liu","doi":"10.1111/jac.70035","DOIUrl":"https://doi.org/10.1111/jac.70035","url":null,"abstract":"<div>\u0000 \u0000 <p>Water deficiency has a serious effect on cotton productivity. Development of cotton bolls determines cotton fibre yield and quality and is affected by many environmental variables, including water availability. However, we know little about the effect of water stress on boll development and the final fibre yield and quality of the varieties with different boll sizes. In this study, cotton varieties with different boll sizes were used to compare the effect of water availability on boll development, characteristics of fibre yield and quality, seed components and seed vigour. The results showed that under the well-watered (WW) and water-deficit (WD) irrigation conditions, large boll (LB) and small boll (SB) varieties had a similar overall trend of boll volume change and accumulation of boll dry matter during boll development, but differed in the rate of dry matter accumulation and boll volume growth. Under WW treatment, the dry matter accumulation per boll of LB was significantly higher than that of SB at 42 days postanthesis (DPA), with a difference of 29.17%. WD led to a reduction in dry matter accumulation of bolls, and the dry matter accumulation in seed cotton and boll shell for LB varieties decreased by 20.45% and 3.24%, respectively, at 42 DPA. The corresponding decrease in SB varieties was, respectively, 16.76% and 2.81%, but the harvestable boll numbers per plant of SB varieties were 36.28% higher than that of LB varieties under WD irrigation. The lint yield of the SB varieties was 1042.45 kg·ha⁻¹ and the seed cotton yield was 2459.67 kg·ha⁻¹, which were also comparable to those of the LB varieties. WD treatment also reduced fibre length and strength, with a more significant impact on LB varieties. In addition, WD significantly increased the relative protein content of cottonseed but decreased the relative oil content, leading to a decrease in seed vitality. Under WD irrigation, compared to seeds of LB varieties, the seeds of SB varieties have higher germination potential. Compared with LB varieties, SB varieties required less dry matter accumulation for boll maturation and produced more harvestable boll numbers, resulting in a smaller impact on yield and quality under WD irrigation. In general, SB varieties are more tolerant to WD stress and are expected to have a better performance in severe arid areas.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 2","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481639","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":"Genome-Wide Identification and Expression Analysis of the Trihelix Gene Family in Common Bean (Phaseolus vulgaris L.) Under Salt and Drought Stress","authors":"Wenjing Zhang,&nbsp;Yan Cheng,&nbsp;Lingmin Jian,&nbsp;Hongda Wang,&nbsp;Haoxin Li,&nbsp;Zihao Shen,&nbsp;Wenyu Ying,&nbsp;Zhengong Yin,&nbsp;Qi Zhang,&nbsp;Jidao Du","doi":"10.1111/jac.70038","DOIUrl":"https://doi.org/10.1111/jac.70038","url":null,"abstract":"<div>\u0000 \u0000 <p>Triple-helix transcription factors (GT factors) play a pivotal role in plant abiotic stress responses and growth and development. Named for their specific binding affinity to GT factors, they are clustered into five subgroups: GT-1, GT-2, GT-γ, SIP1 and SH4. In <i>Phaseolus vulgaris</i>, 43 GT family members have been identified through reference genome analysis. PvGT members exhibit uneven genomic distribution, and members within the same subgroup share similar gene structures and motifs. <i>Cis</i>-acting element analysis indicates the involvement of <i>PvGTs</i> in hormonal signalling and abiotic stress regulation. Collinearity analysis revealed four pairs of homologous <i>PvGT</i>s. To investigate their expression patterns, nine <i>PvGTs</i> with high expression levels were selected for quantitative real-time PCR (qRT-PCR) analysis. Among these, <i>PvGT02</i>, <i>PvGT28</i>, <i>PvGT30</i> and <i>PvGT34</i> were significantly upregulated under salt and drought stress. Functional characterisation demonstrated that <i>PvGT02</i> significantly enhanced yeast tolerance to salt and drought stresses. These findings collectively contribute to our understanding of the PvGT family evolution in common bean, providing a foundation for further exploration. Additionally, <i>PvGT02</i> emerges as a potential candidate gene for breeding salt and drought tolerance.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 2","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481638","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":"Root Morpho-Physiological Characteristics and Yield Formation of Rice Under Combined Salinity-Drought Stress","authors":"Tianyao Meng,&nbsp;Lulu Wang,&nbsp;Wang Zhu,&nbsp;Guanglong Zhu,&nbsp;Huanhe Wei,&nbsp;Ke Xu,&nbsp;Qigen Dai,&nbsp;Guisheng Zhou","doi":"10.1111/jac.70026","DOIUrl":"https://doi.org/10.1111/jac.70026","url":null,"abstract":"<div>\u0000 \u0000 <p>Because of inadequate freshwater resources and poor irrigation facilities, salinity and drought often co-occur for rice production in saline lands. The root is the primary and most vulnerable organ for detecting and perceiving salinity and drought stresses in soil. Still, little information is available on the root morpho-physiological characteristics and grain yield of rice when subjected to the combined salinity-drought stress. The present study was conducted under two salinity levels (NS, non-salinity treatment; S, salinity treatment) and three drought levels imposed from jointing to heading (ND, non-drought treatment; MD, moderate drought treatment; SD, severe drought treatment). Salinity and drought treatments shortened the duration from heading to maturity by 5–9 days and total growth duration by 3–6 days. Grain yield was reduced (<i>p</i> &lt; 0.01 or <i>p</i> &lt; 0.05) under salinity and drought, and the reduction was more significant under their combined stress. The aggravated yield loss under the combined salinity-drought was attributed to lower yield components relative to salinity and drought alone. The combined stress caused greater decreases in root and shoot biomass and root/shoot ratio at heading and maturity, although there was an increase in harvest index. Individual salinity and drought, and especially their combined stress, reduced root length and root volume at heading and maturity and increased reduction rates of root length and root volume after heading. Root-bleeding rate and root oxidative activity after heading were decreased under salinity and drought, and the decreases were greater under the combined salinity-drought stress; similar trends were detected for flag leaf photosynthetic rate and zeatin (Z) and zeatin riboside (ZR) contents in the root-bleeding sap and flag leaf. Our results suggested a greater yield penalty of rice when subjected to the combined stress of salinity and drought. Individual salinity, drought, and especially their combined stresses deteriorated root morphology and physiology, which shortened growth duration, accelerated plant senescence, weakened leaf photosynthesis and biomass accumulation, and led to poor grain yield.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 2","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143455774","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":"Optimising Potassium Levels Improved the Lodging Resistance Index and Soybean Yield in Maize-Soybean Intercropping by Enhanced Stem Diameter and Lignin Synthesis Enzyme Activity","authors":"Yan Gu,&nbsp;Danyang Guo,&nbsp;Chenyang Li,&nbsp;Cong Zheng,&nbsp;Xiang Li,&nbsp;Fangming He,&nbsp;Qingquan Tang,&nbsp;Jia Yu,&nbsp;Hong Ren","doi":"10.1111/jac.70036","DOIUrl":"https://doi.org/10.1111/jac.70036","url":null,"abstract":"<div>\u0000 \u0000 <p>Lodging is a major factor limiting soybean yield in maize–soybean intercropping system (IS). Potassium fertilisation significantly enhances the lodging resistance index by promoting dry matter accumulation in soybean. However, the physiological mechanisms through which potassium affects the lodging resistance index remain unclear, particularly under different planting systems. In this study, we analysed the relationships between photosynthetic characteristics, root system, stem physiology, stem morphological characteristics, dry matter and lodging resistance index of soybean based on field experiments. The soybean cultivar Jinong 40 was used in both maize–soybean intercropping (maize: soybean as 6:6) and monoculture soybean systems (MS) in a two-year field experiment (2022–2023), with five potassium fertilisation levels (0 kg ha⁻¹, 30 kg ha⁻¹, 60 kg ha⁻¹, 90 kg ha⁻¹ and 120 kg ha⁻¹). Potassium application significantly improved chlorophyll fluorescence parameters, dry matter accumulation, stem lignin synthesis enzyme activity (phenylalanine ammonia-lyase, tyrosine ammonia-lyase and cinnamyl alcohol dehydrogenase), lodging resistance index and grain yield, regardless of the planting system. However, no significant differences in lodging resistance index or grain yield were observed between the potassium rates of 90 kg ha⁻¹ and 120 kg ha⁻¹. Compared to 0 kg ha⁻¹, increased potassium rates increased stem diameter by 17.8% and 15.5%, while the ratio of stem length to stem diameter ratio (L/D) decreased by 27.2% and 26.8% in maize–soybean intercropping and monoculture soybean systems, respectively. Across the high potassium inputs (90 kg ha⁻¹ and 120 kg ha⁻¹), phenylalanine ammonia-lyase (2.6%) and cinnamyl alcohol dehydrogenase (3.9%) were higher in the maize–soybean intercropping system compared to the monoculture soybean system. For the two planting patterns, the lodging resistance index was found to be more dependent on stem enzyme activity (93.5% for IS and 75.3% for MS) and L/D ratio (−81.0% for IS and −83.8% for MS), rather than stem length or root characteristics. We conclude that potassium application optimises stem diameter, enhances stem lignin synthesis and reduces the L/D ratio, therefore improving the soybean lodging resistance index and yield, especially in the maize–soybean intercropping system.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 2","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143447016","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":"Waterlogging Does Not Have a Lasting Impact on Yield Performance and Micronutrient Status of Oat (Avena sativa)","authors":"Britta Pitann,&nbsp;Timo Hoppenheit,&nbsp;Karl H. Mühling","doi":"10.1111/jac.70031","DOIUrl":"https://doi.org/10.1111/jac.70031","url":null,"abstract":"<p>Waterlogging increasingly threatens global crop production, particularly affecting major crops like wheat, barley, and maize at all growth stages. Although research on oat tolerance to waterlogging is limited, there is evidence that oat may be a suitable alternative crop due to its resilience and ability to maintain yields despite nutrient imbalances caused by waterlogging. However, it remains uncertain how oat responds to changes in soil micronutrient availability during periods of waterlogging. Therefore, this study aims to investigate whether (1) micronutrient toxicities or deficiencies are induced during waterlogging, (2) the timing of the flooding event is relevant for the expression of a possible nutrient imbalance, and (3) micronutrient toxicities/deficiencies affect yield performance. In order not to exclude possible varietal differences, three oat varieties were grown in large-scale containers and exposed to 14 days of waterlogging at either BBCH 31 or BBCH 51. Although early but not late waterlogging was effective in reducing dry weights, especially in white oat, yield performance, as reflected by the harvest index, was not affected at all. While early waterlogging increased Mn and Fe concentrations in all oat varieties, they were well below toxic level. In contrast, Cu concentrations in white oat dropped below the deficiency threshold levels. Zinc status, however, remained completely unaffected in all oat varieties. After late waterlogging, only Mn accumulated to concentration in the toxicity range, but only in white and yellow oat; all other micronutrients remained in a sufficient range From these results we conclude, that although micronutrient imbalances occurred under waterlogging regardless from its timing, which may explain the transient reduction in dry weight of white oat, the yield of all tested oat varieties was ultimately unaffected. It can therefore be assumed that at least the oat varieties tested have a high regeneration potential and also show a high tolerance to transient micronutrient imbalances.</p>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 2","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jac.70031","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143389157","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":"Experimental Design and Performance of a Free Air Carbon Dioxide Enrichment Facility in Northern Germany","authors":"Lorenz Kottmann,&nbsp;Lars Kretschmer,&nbsp;Federico Carotenuto,&nbsp;Alessandro Zaldei,&nbsp;Lorenzo Brilli","doi":"10.1111/jac.70034","DOIUrl":"https://doi.org/10.1111/jac.70034","url":null,"abstract":"<p>Free air carbon dioxide enrichment (FACE) offers a unique approach to study the response of crops to rising carbon dioxide (CO₂) concentrations under field conditions. We have established a Miglietta-type FACE facility in Northern Germany (JKI-FACE) consisting of four rings with CO₂ fumigation and four rings without fumigation with diameters of 15.5 m. Here, we present the technical details and the performance of the JKI-FACE facility based on thee-year data (2022–2024) regarding temporal and spatial carbon dioxide distribution. Our results indicated that high-frequency (1-min) data of CO₂ concentration was within 10% and 20% of the target concentration (600 ppm) for 84.2% and 95.8% of the time, respectively. Although the rings are relatively close together in our experimental setup, CO₂ drift measurements suggest no significant interference between the rings. These results suggest that JKI-FACE is a suitable field infrastructure for studying the effects of increasing CO₂ concentrations in cereals. With this FACE facility, we focus on the intraspecific variation of the response of crop yield and quality to elevated CO₂ to make an important contribution to the adaptation of crops and cropping systems to changing climate conditions.</p>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 2","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jac.70034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143389158","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":"Interactive Effects of CO2 Enrichment and Nitrogen Levels on Leaf Gas Exchange Capacities of Sweet Potato","authors":"J. Suresh Kumar,&nbsp;R. Saravanan,&nbsp;V. Ravi,&nbsp;J. Sreekumar,&nbsp;S. Sunitha,&nbsp;Sanket J. More","doi":"10.1111/jac.70029","DOIUrl":"https://doi.org/10.1111/jac.70029","url":null,"abstract":"<div>\u0000 \u0000 <p>Different nitrogen (<i>N</i>) doses may stimulate the photosynthetic responses of sweet potato under CO₂-enriched environment (ECO₂). The photosynthetic responses of two varieties, Sree Arun and Sree Kanaka, were adjudicated under varying nitrogen levels (0%, 25%, 50%, 100%, and 125% of the recommended <i>N</i> dose), exposed to ambient CO₂ (400 ppm) and elevated CO₂ (600 and 800 ppm). The results indicated that, compared to ambient CO₂, the net photosynthetic rate (<i>P</i>_n) and intercellular CO₂ (<i>C</i>_i) were significantly increased at ECO₂, while stomatal conductance (<i>g</i>_s) and transpiration (<i>E</i>) were significantly exacerbated. This resulted in an improved intrinsic (<i>P</i>_n/<i>g</i>_s) and instantaneous water use efficiency (<i>P</i>_n/<i>E</i>). Relative humidity and vapour pressure deficit during the time of measurements remained at 73%–85% and ~0.95–1.42 kPa, respectively, at 28°C ± 2°C leaf temperature. Furthermore, the results demonstrated that higher <i>N</i> doses increased photosynthesis and improved plant water relations by modulating stomatal conductance and transpiration rate. Overall, the responses of sweet potato plants to ECO₂ and <i>N</i> supply were genotypic-dependent, and nitrogen application could play an important role in modulating these responses under ECO₂. The findings from this study provide valuable insights for tailoring nitrogen-based management practices for sweet potato in a carbon-enriched environment.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 2","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380376","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":"Correction to ‘Association of Yield and Yield Components Among Selected Bread Wheat Genotypes Under Silicon Fertilisation and Drought Conditions’","authors":"","doi":"10.1111/jac.70028","DOIUrl":"https://doi.org/10.1111/jac.70028","url":null,"abstract":"<p>Christian, M. M., Shimelis, H., Laing, M. D. and Tsilo, T. J. (2025), Association of Yield and Yield Components Among Selected Bread Wheat Genotypes Under Silicon Fertilisation and Drought Conditions. <i>Journal of Agronomy and Crop Science</i>, 211: e70020. https://doi.org/10.1111/jac.70020.</p><p>In Table 4, the treatment headings (Liquid Si and Granular Si) were missed. The corrected Table 4 is shown below:</p><p>We apologise for this error.</p>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 2","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jac.70028","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380169","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":"Drought Stress at Different Growth Stages Affects the Capacities of Sinks and Two Carbon Sources of Spring Wheat (Triticum aestivum L.)","authors":"Jingya Yang,&nbsp;Xi Liang","doi":"10.1111/jac.70030","DOIUrl":"10.1111/jac.70030","url":null,"abstract":"<div>\u0000 \u0000 <p>Drought stress reduces cereal crop growth and yield due to modifications to interactions between sink and source. However, little research has investigated multiple carbon sources and their relationships with sink capacities, especially in response to drought stress at different growth stages. The objective of this study was thus to examine two major carbon sources (i.e., photosynthetic assimilation in the flag leaf and remobilisation of pre-anthesis reserves in stems) and their interactions with sink strength in response to drought stress at different phenological stages. A greenhouse experiment was conducted at five water regimes: well-watered (WW), progressive drought (PD), and drought stress (DS) during vegetative growth (DS-V), early reproductive growth (DS-ER), and post-anthesis (DS-PA). Compared with the WW regime, the DS-V treatment reduced shoot biomass, grain yield, number of grains per pot, grain weight, harvest index, and water-soluble carbohydrates in stems despite the recovered photosynthesis after rehydration. Wheat plants subject to DS-PA exhibited reduced shoot biomass, grain yield, grain weight, and post-anthesis photosynthetic rate but greater depletion of water-soluble carbohydrates in stems during grain filling relative to the WW regime. Grain yield positively correlated with residual water-soluble carbohydrates in stems and late-season photosynthetic rates. This study demonstrated yield losses associated with changes in sink and source capacities in response to drought stress at different phenological stages and showcased the predominant role of the two carbon sources in grain filling.</p>\u0000 </div>","PeriodicalId":14864,"journal":{"name":"Journal of Agronomy and Crop Science","volume":"211 2","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143191800","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}