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Preparation of Phosphogypsum–Bentonite-Based Slow-Release Potassium Magnesium Sulfate Fertilizer 磷石膏-膨润土基缓释硫酸钾镁肥的制备
2区 农林科学 Q1 AGRONOMY Pub Date : 2025-03-25 DOI: 10.3390/agriculture15070692
Zhizhi Zhang, Chunxiao Han, Changyuan Tao, Xing Fan, Renlong Liu
The application of slow-release fertilizers is essential for improving fertilizer utilization efficiency and promoting sustainable agricultural development. Unlike traditional single organic polymer-coated or inorganic-coated fertilizers, this study utilized biodegradable modified polyvinyl alcohol (PVA) as a binder and cheap, readily available phosphogypsum–bentonite as an inorganic coating material to develop a novel slow-release potassium magnesium sulfate fertilizer (SRPMSF). This study initially examined the influence of SA dosage on PVA properties. XRD, FTIR, TGA, and water resistance analyses revealed that sodium alginate exhibits good compatibility with polyvinyl alcohol, enhancing its heat and water resistance. Ultimately, PVA–SA-2 (1.2% sodium alginate) was chosen as the optimal binder for SRPMSF production. Furthermore, this study investigated the impact of bentonite on the physical and slow-release properties of the SRPMSF by varying the phosphogypsum-to-bentonite ratio. This experiment included five treatment methods: the treatments consist of SRPMSF-1 (0 g bentonite), SRPMSF-2 (phosphogypsum/bentonite ratio of 4:1), SRPMSF-3 (3:2), SRPMSF-4 (2:3), and SRPMSF-5 (1:4). A control group (PMSF) was also included. The results indicated that, as the bentonite content increased, both the particle size and compressive strength of the coated slow-release fertilizer increased, with the SRPMSF particle sizes ranging from 3.00 to 4.50 mm. The compressive strength of the SRPMSF ranged from 20.85 to 43.78 N, meeting the requirements for industrial production. The soil column leaching method was employed to assess the nutrient release rate of the fertilizers. The experimental results indicated that, compared to the PMSF, the SRPMSF effectively regulated nutrient release. Pot experiments demonstrated that the SRPMSF significantly enhanced garlic seedling growth compared to the PMSF. In conclusion, a new type of slow-release fertilizer with good slow-release performance is prepared in this paper, which can improve the utilization rate of fertilizer and reduce the economic loss and is conducive to the sustainable development of agriculture.
缓释肥料的施用是提高肥料利用效率,促进农业可持续发展的必要条件。与传统的单一有机聚合物包膜或无机包膜肥料不同,本研究以可生物降解的改性聚乙烯醇(PVA)为粘结剂,以廉价易得的磷石膏膨润土为无机包膜材料,开发了一种新型缓释硫酸钾镁肥料(SRPMSF)。本研究初步考察了SA用量对PVA性能的影响。XRD、FTIR、TGA和耐水性分析表明,海藻酸钠与聚乙烯醇具有良好的相容性,增强了聚乙烯醇的耐热性和耐水性。最终选择PVA-SA-2(1.2%海藻酸钠)作为SRPMSF生产的最佳粘合剂。此外,本研究通过改变磷石膏与膨润土的比例,考察了膨润土对SRPMSF物理性能和缓释性能的影响。实验采用5种处理方法,分别为SRPMSF-1 (0 g膨润土)、SRPMSF-2(磷石膏/膨润土比例为4:1)、SRPMSF-3(3:2)、SRPMSF-4(2:3)和SRPMSF-5(1:4)。另设对照组(PMSF)。结果表明:随着膨润土含量的增加,包膜缓释肥料的粒径和抗压强度均增大,SRPMSF粒径范围为3.00 ~ 4.50 mm;SRPMSF的抗压强度为20.85 ~ 43.78 N,满足工业生产的要求。采用土壤柱淋法评价肥料的养分释放速率。实验结果表明,与PMSF相比,SRPMSF能有效调节养分释放。盆栽试验表明,与PMSF相比,SRPMSF显著促进了大蒜幼苗的生长。综上所述,本文制备的新型缓释肥料具有良好的缓释性能,可以提高肥料利用率,减少经济损失,有利于农业的可持续发展。
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引用次数: 5
Effect of Low Nighttime Temperature on Oil Accumulation of Rapeseed Seeds (Brassica napus L.) Based on RNA-Seq of Silique Wall Tissue 夜间低温对甘蓝型油菜种子油脂积累的影响基于硅胶壁组织RNA-Seq的研究
2区 农林科学 Q1 AGRONOMY Pub Date : 2025-03-09 DOI: 10.3390/agriculture15060576
Chao Mi, Yanning Zhao, Xuetao Yang, Liangbin Lin, Jinxiong Wang
This study investigated the impact of nighttime temperature and elevation on the oil and erucic acid content of rapeseed (Brassica napus L.) seeds, focusing on the role of sugar synthesis in the silique wall as a substrate for oil synthesis. Field experiments across different altitudes and controlled low nighttime temperature (LNT) treatments (20/18 °C and 20/13 °C) were conducted. Transcriptome analysis of the silique walls was performed to explore gene expression changes. The results showed that higher altitudes and lower nighttime temperatures significantly increased seed oil and erucic acid content, particularly in strong temperature-sensitive line (STSL) seeds. LNT conditions promoted sucrose synthesis and transport in the silique wall by upregulating genes involved in sugar transport (SUT, SWEET, SUC1) and transcription factors (WRKY51, NAC104). This, in turn, enhanced the substrate availability for oil synthesis in the seeds. Furthermore, genes associated with oil biosynthesis (SAD, FAD2, KAS) were significantly upregulated under LNT, promoting oil accumulation. In conclusion, nighttime temperature is a critical factor influencing oil content in rapeseed seeds. Low nighttime temperatures enhance sucrose transport and gene expression in the silique wall, leading to increased oil synthesis. These findings provide insights for breeding strategies aimed at improving seed oil content under varying climatic conditions.
本研究研究了夜间温度和海拔对油菜种子油和芥酸含量的影响,重点研究了作为油合成底物的硅壁中糖合成的作用。田间试验在不同海拔和夜间低温控制处理(20/18°C和20/13°C)下进行。通过对硅胶壁的转录组分析来探索基因表达的变化。结果表明,较高的海拔和较低的夜间温度显著提高了种子油和芥酸含量,特别是在强温度敏感系(STSL)种子中。LNT条件通过上调糖转运相关基因(SUT、SWEET、SUC1)和转录因子(WRKY51、NAC104),促进了蔗糖在细胞壁中的合成和转运。这反过来又提高了种子中油脂合成的底物利用率。此外,与油脂生物合成相关的基因(SAD、FAD2、KAS)在LNT下显著上调,促进油脂积累。综上所述,夜间温度是影响油菜籽含油量的关键因素。夜间较低的温度增强了蔗糖的运输和硅壁中的基因表达,导致油的合成增加。这些发现为在不同气候条件下提高种子含油量的育种策略提供了见解。
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引用次数: 0
Effects of Combined Pollution of High-Density Polyethylene and Cadmium on Carbon and Nitrogen Storage and Forms in Coastal Wetland Soil 高密度聚乙烯与镉复合污染对滨海湿地土壤碳氮储量及形态的影响
2区 农林科学 Q1 AGRONOMY Pub Date : 2025-03-06 DOI: 10.3390/agriculture15050565
Ziying Nie, S.D. Xu, Xuejing Zang, Huihua Lyu, Wang Zhi-quan, Shengbing He, Daolin Du, Jian Li
This study aimed to investigate the effects of HDPE and Cd on forms of carbon (C) and nitrogen (N) by measuring the changes in enzymatic activities and physicochemical properties of Spartina alterniflora soil samples from coastal regions of China. Over three incubation periods (14, 28, and 56 days), a soil incubation experiment was conducted to investigate the effects of HDPE (0, 0.5, 1, and 2 g per 100 g of soil) and Cd (0, 2, 4, and 8 mg kg−1) on soil physicochemical properties. The results demonstrated that the sole presence of HDPE had a notable impact on enhancing the C-related physicochemical properties of the soil, particularly by elevating the concentration of Total Organic Carbon (TOC). The sole addition of Cd significantly suppressed enzymic activities in the soil, leading to a considerable reduction in the concentration of NH4+-N and NO3−-N. Under identical Cd treatment conditions, the introduction of 1 g HDPE led to an increase in the concentration of TOC, and the inhibitory effect of Cd on enzymic activities was decreased; thus, an elevated consumption of soluble organic carbon (DOC) was identified. However, upon adding 2 g of HDPE, while the TOC concentration continued to rise, the stimulatory effect on enzymic activities diminished. In conclusion, the addition of HDPE inhibits, to a certain extent, the influence of Cd on the carbon and nitrogen cycling in soil.
本研究旨在通过测定中国沿海互花米草土壤样品酶活性和理化性质的变化,探讨HDPE和Cd对土壤碳(C)和氮(N)形态的影响。在三个孵育期(14、28和56天)中,进行了土壤孵育实验,以研究HDPE(每100 g土壤0、0.5、1和2 g)和Cd(0、2、4和8 mg kg - 1)对土壤理化性质的影响。结果表明,HDPE的单独存在对提高土壤碳相关的理化性质有显著影响,特别是通过提高总有机碳(TOC)浓度。单独添加Cd显著抑制了土壤酶活性,导致NH4+-N和NO3−-N浓度显著降低。在相同Cd处理条件下,引入1 g HDPE可使TOC浓度升高,Cd对酶活性的抑制作用减弱;因此,可溶性有机碳(DOC)的消耗量增加。然而,在添加2 g HDPE后,虽然TOC浓度继续升高,但对酶活性的刺激作用减弱。由此可见,HDPE的添加在一定程度上抑制了Cd对土壤碳氮循环的影响。
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引用次数: 3
The Impacts of Ethylicin on Absorption, Transport, and Growth in Tomato Plants 乙烯素对番茄植株吸收、转运及生长的影响
2区 农林科学 Q1 AGRONOMY Pub Date : 2025-02-28 DOI: 10.3390/agriculture15050533
Yiwen Zheng, Shenyan Liu, Lirui Ren, Tao Zeng, X. Y. Wen, Shaolong Wang, Xi Jin, Hao Zheng, Shun Gao, Jie Gao, Aocheng Cao
This study investigates the uptake, translocation, and pathogen control efficacy of ethylicin in tomato plants using a combination of indoor root irrigation, spraying, and field root irrigation experiments. The results indicate that ethylicin shows dual-directional translocation in tomato plants. On the third day after foliar spraying, ethylicin was detected in the roots at a concentration of 2.93 mg/kg, indicating downward movement. On the third day after root irrigation, ethylicin was detected in the leaves at a concentration of 3.44 mg/kg, confirming upward movement. In the field experiments, ethylicin was absorbed and transported to the upper leaves within six hours of root irrigation at a concentration of 3.85 mg/kg for a single-agent ethylicin and 5.87 mg/kg for an ethylicin–oligosaccharin compound. These results indicate that oligosaccharins enhance the absorption of ethylicin. Ethylicin residue dissipated by the fifth day. No ethylicin was detected in the untreated controls. Root irrigation during the growing period showed an effective reduction of Fusarium spp. and Phytophthora spp. populations in the soil and control of soil-borne diseases. These findings provide theoretical support for the efficient application of ethylicin in the field.
本研究采用室内根灌、喷灌和田间根灌相结合的方法,研究了乙基苷在番茄植株中的吸收、转运和病原菌防治效果。结果表明,乙基苷在番茄植株中存在双向易位。叶面喷施后第3天,根中检测到乙基苷浓度为2.93 mg/kg,呈下降趋势。灌根后第3天,叶片中检测到乙基苷浓度为3.44 mg/kg,呈上升趋势。在田间试验中,灌根后6小时内,单剂乙基苷浓度为3.85 mg/kg,低聚糖乙基苷浓度为5.87 mg/kg,乙基苷被吸收并转运至上部叶片。这些结果表明,低聚糖促进了乙基苷的吸收。到第5天,乙基苷的残留量逐渐消失。未处理的对照组未检测到乙基素。生长期根灌能有效减少土壤中镰刀菌和疫霉的数量,防治土传病害。这些发现为乙基苷在该领域的高效应用提供了理论支持。
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引用次数: 1
Participation of Emerging Commercial Farmers in the Strategic Private-Sector Investment Interventions. 新兴商业农民参与战略性私营部门投资干预。
IF 3.3 2区 农林科学 Q1 AGRONOMY Pub Date : 2025-02-20 DOI: 10.3390/agriculture15050450
Sandile Jason Mnikathi, Simphiwe Innocentia Hlatshwayo, Ojo Temitope, Mjabuliseni Simon Cloapas Ngidi

Private sector investment interventions serve as essential mechanisms for creating efficient, cost-effective financial solutions and technological support for emerging farmers in developing economies, yet their successful implementation is influenced by various contextual and socioeconomic factors. Using a quantitative research approach, this study examined the factors influencing participation in private sector investment interventions among 121 emerging commercial farmers in KwaZulu-Natal, South Africa, utilizing a Poisson regression model to analyze four key intervention areas: credit access, market access, technical support, and spot supply. The first-hurdle model revealed that age and training skills negatively influenced market access while the training period showed positive influence, and similarly, the second-hurdle equation demonstrated that employment status and training period positively influenced participation intensity levels, though age maintained its negative impact. The findings of the first-hurdle model reveal that age and training skills negatively influenced market participation. The study concludes that employment status and training period positively impacted technical support adoption, with household size and training period emerging as significant determinants of intervention success. The private sector needs to develop strategic partnership models that encourage emerging farmers to participate intensively in interventions that are designed to improve their production and productivity. There is a need for targeted capacity-building programmes and enhanced extension services to improve emerging commercial farmers' participation in private-sector initiatives.

私营部门投资干预措施是为发展中经济体的新兴农民创造高效、具有成本效益的金融解决方案和技术支持的重要机制,但其成功实施受到各种背景和社会经济因素的影响。本研究采用定量研究方法,考察了南非夸祖鲁-纳塔尔省121个新兴商业农民参与私营部门投资干预的影响因素,利用泊松回归模型分析了四个关键干预领域:信贷准入、市场准入、技术支持和现货供应。第一障碍模型显示,年龄和培训技能对市场准入有负向影响,培训时间对市场准入有正向影响;第二障碍方程显示,就业状况和培训时间对参与强度水平有正向影响,但年龄对参与强度水平仍有负向影响。第一障碍模型的研究结果显示,年龄和培训技能对市场参与有负向影响。研究得出结论,就业状况和培训时间正影响技术支持的采用,家庭规模和培训时间成为干预成功的重要决定因素。私营部门需要制定战略伙伴关系模式,鼓励新兴农民密集参与旨在提高其产量和生产力的干预措施。需要有针对性的能力建设方案和加强推广服务,以改善新兴商业农民对私营部门倡议的参与。
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引用次数: 0
Compared to MgSO4, the Use of Magnesium Nanofertilizer Alleviates Potassium-Magnesium Antagonism in Tomato Roots 与MgSO4相比,施用镁纳米肥减轻了番茄根系钾镁拮抗作用
2区 农林科学 Q1 AGRONOMY Pub Date : 2025-02-09 DOI: 10.3390/agriculture15040368
Wenhui Chen, Ziyi Hu, Dunyi Liu
Magnesium (Mg) deficiency is increasingly recognized as a critical factor limiting crop production, especially in soils with high potassium (K) application. This study investigated the effects of different Mg fertilizers (MgSO4 and Mg(OH)2-based nanofertilizer) on K–Mg interactions in hydroponically grown tomato seedlings, with varying K (0.7, 7, and 21 mM) and Mg (0.1 and 1 mM) supply concentrations. The results observed with MgSO4 application showed that high K levels (21 mM) significantly antagonized Mg uptake, reducing total Mg content and negatively affecting plant growth and root-to-shoot ratios at both Mg supply levels. Specifically, the K3 (21 mM) treatment reduced total biomass by 45.35% compared to the K2 (7 mM) treatment. Moreover, a high K supply combined with low Mg intake exacerbated Mg deficiency. The optimal K:Mg ratio for growth was found to be 7:1. K–Mg antagonism occurred primarily during root uptake, with excessive K leading to increased Mg2+ efflux in the root elongation zone. Notably, the application of Mg(OH)2 nanoparticles alleviated K-induced Mg deficiency, as indicated by the lack of a significant correlation between K supply and relative Mg concentrations in plants treated with nano-Mg across K:Mg ratios ranging from 7:0.1 to 21:0.1. However, Mg concentration decreased by 17.54% and 35.63% in shoots and by 27.72% and 37.08% in roots for K2 and K3, respectively, in plants treated with MgSO4. It is concluded that optimizing K:Mg ratios and using Mg-based nanofertilizers can improve K and Mg utilization in high-K soils.
镁(Mg)缺乏日益被认为是限制作物生产的关键因素,特别是在高钾土壤中。本研究研究了不同Mg肥料(MgSO4和Mg(OH)2基纳米肥料)在不同K(0.7、7和21 mM)和Mg(0.1和1 mM)供应浓度下对水培番茄幼苗K - Mg相互作用的影响。结果表明,高钾水平(21 mM)显著抑制Mg的吸收,降低总Mg含量,并对两种Mg供应水平下的植株生长和根冠比产生负面影响。其中,K3 (21 mM)处理比K2 (7 mM)处理减少了45.35%的总生物量。此外,高钾和低镁的摄入加剧了镁的缺乏。适宜生长的K:Mg比为7:1。K - mg拮抗作用主要发生在根吸收过程中,过量的K导致根伸长区Mg2+外排增加。值得注意的是,Mg(OH)2纳米颗粒的施用减轻了钾诱导的Mg缺乏症,这表明在K:Mg比为7:0.1至21:0.1的纳米Mg处理下,植株的K供应与相对Mg浓度之间没有显著的相关性。而在MgSO4处理下,Mg浓度在K2和K3处理下分别下降了17.54%和35.63%,在根系中分别下降了27.72%和37.08%。综上所述,优化钾镁比和施用镁基纳米肥料可以提高高钾土壤对钾和镁的利用。
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引用次数: 3
The Association of Socio-Economic Factors and Indigenous Crops on the Food Security Status of Farming Households in KwaZulu-Natal Province. 夸祖鲁-纳塔尔省农户的社会经济因素和本地作物对粮食安全状况的影响。
IF 3.6 2区 农林科学 Q1 AGRONOMY Pub Date : 2024-03-04 DOI: 10.3390/agriculture14030415
Nomfundo Shelembe, Simphiwe Innocentia Hlatshwayo, Albert Modi, Tafadzwanashe Mabhaudhi, Mjabuliseni Simon Cloapas Ngidi

Indigenous crops have been proposed as part of a solution for household food security and sustainable farming systems. However, they have been overlooked and underutilised by households and farmers despite their potential contribution to household food security. The objective of this paper was to determine the association of socio-economic factors and indigenous crops with the household food security of farming households. About 260 farming households were selected using a simple random sampling procedure. The food security status was measured through the use of the Household Food Insecurity Access Scale (HFIAS). The Chi-square test and extended ordered probit regression model assessed the relationship of socio-economic factors and indigenous crops with household food security status. The results from the HFIAS showed that farming households were largely in the mildly and moderately food-insecure categories, with 34.2% and 36.2% of the sampled farmers found in these categories, respectively. The Chi-square test showed a statistically significant relationship between food security status and socio-economic factors. Young men and everyone were perceived to be the ones likely to consume indigenous crops. Consumption of indigenous crops was perceived to be associated with food security. The results also showed that farming experience is likely to positively contribute to the food security status of the farming households. Selling indigenous crops in a formal market is perceived to be associated with food security compared to selling in an informal market. This study concludes that consuming indigenous crops is likely associated with improved food security. Identifying an appropriate market for sales of indigenous crops is imperative. Government, extension officers, and nutritionists must conduct training workshops to encourage households to grow, market and buy indigenous crops. Government and policymakers need to include indigenous crops in the national food and nutrition security policy and create formal markets for indigenous crops.

本土作物已被提议作为家庭粮食安全和可持续耕作体系解决方案的一部分。然而,尽管本土作物对家庭粮食安全有潜在贡献,但却一直被家庭和农民忽视和利用不足。本文旨在确定社会经济因素和本土作物与农户家庭粮食安全的关系。本文采用简单随机抽样程序选取了约 260 户农户。粮食安全状况通过家庭粮食不安全状况量表(HFIAS)进行测量。卡方检验和扩展的有序概率回归模型评估了社会经济因素和本地作物与家庭粮食安全状况之间的关系。HFIAS 的结果显示,大部分农户属于轻度和中度粮食不安全类别,分别占抽样农户的 34.2% 和 36.2%。卡方检验表明,粮食安全状况与社会经济因素之间存在显著的统计学关系。年轻男性和每个人都被认为有可能食用本地作物。人们认为食用本地作物与粮食安全有关。研究结果还表明,耕作经验可能会对农户的粮食安全状况产生积极影响。与在非正规市场销售相比,在正规市场销售本地作物被认为与粮食安全有关。本研究的结论是,消费本地作物可能与改善粮食安全有关。为本地作物的销售确定一个合适的市场势在必行。政府、推广人员和营养学家必须举办培训讲习班,鼓励家庭种植、销售和购买本地作物。政府和决策者需要将本地作物纳入国家粮食和营养安全政策,并为本地作物创建正规市场。
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引用次数: 0
Effects of Dietary Galla Chinensis Tannin Supplementation on Antioxidant Capacity and Intestinal Microbiota Composition in Broilers 饲粮中添加五倍子单宁对肉仔鸡抗氧化能力和肠道菌群组成的影响
IF 3.6 2区 农林科学 Q1 AGRONOMY Pub Date : 2023-09-08 DOI: 10.3390/agriculture13091780
Peng Yuan, Xiaojie Ren, Jiaxing Niu, Yang Liu, Libo Huang, S. Jiang, Ning Jiao, X. Yuan, Weiren Yang, Yang Li
The current study aimed to investigate the effects of dietary Galla Chinensis tannin (GCT) supplementation on antioxidant capacity and gut microbiota composition in broilers. Two hundred eighty-eight Arbor Acres broiler chicks were divided into the CON group and the GCT group; each treatment group contained 6 replicates with 24 broiler chicks per replicate for a period of 42 days, and were fed either a basal diet or the basal diet supplemented with 300 mg/kg GCT. Results revealed that GCT supplementation significantly increased glutathione peroxidase (GSH-Px) activity (p < 0.05) and significantly decreased malondialdehyde (MAD) concentrations in serum (p < 0.05) and significantly increased GSH-Px and catalase (CAT) (p < 0.05) and significantly decreased MDA concentrations in the small intestine. In addition, GCT significantly up-regulated (p < 0.05) the gene expressions of nuclear factor erythroid 2-related factor 2 (Nrf2), heme-oxygenase 1 (HO-1), catalase (CAT), glutathione peroxidase-1 (GPX1), and NAD(P)H quinone oxidoreductase 1(NQO1). High-throughput sequencing results showed that GCT supplementation significantly increased abundances of Faecalibacterium and Megamonas (p < 0.05). These findings will contribute to our understanding of the effects of dietary Galla Chinensis tannin supplementation on antioxidant capacity and intestinal microbiota composition in broilers.
本试验旨在研究饲粮中添加五倍子单宁(GCT)对肉鸡抗氧化能力和肠道菌群组成的影响。将288只爱拔益加肉鸡分为CON组和GCT组;每个处理组设6个重复,每个重复24只肉鸡,试验期42 d,分别饲喂基础饲粮或在基础饲粮中添加300 mg/kg GCT的试验饲粮。结果显示,添加GCT显著提高了血清谷胱甘肽过氧化物酶(GSH-Px)活性(p < 0.05),显著降低了血清丙二醛(MAD)浓度(p < 0.05),显著提高了血清谷胱甘肽过氧化物酶(GSH-Px)和过氧化氢酶(CAT) (p < 0.05),显著降低了小肠MDA浓度。此外,GCT显著上调核因子红系2相关因子2 (Nrf2)、血红素加氧酶1(HO-1)、过氧化氢酶(CAT)、谷胱甘肽过氧化物酶1(GPX1)、NAD(p)H醌氧化还原酶1(NQO1)基因表达量(p < 0.05)。高通量测序结果显示,添加GCT显著提高了Faecalibacterium和Megamonas的丰度(p < 0.05)。本研究结果有助于进一步了解饲粮中添加五倍子单宁对肉鸡抗氧化能力和肠道菌群组成的影响。
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引用次数: 0
Fields of the Future: Pivotal Role of Biosaline Agriculture in Farming 未来的领域:生物盐农业在农业中的关键作用
IF 3.6 2区 农林科学 Q1 AGRONOMY Pub Date : 2023-09-07 DOI: 10.3390/agriculture13091774
H. Gheyi, D. Sandhu, C. F. de Lacerda
Worldwide, groundwater quality is in decline, growing progressively saltier [...]
在世界范围内,地下水质量正在下降,越来越咸[…]
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引用次数: 0
Genetic Variability of Oil Palm in Mexico: An Assessment Based on Microsatellite Markers 墨西哥油棕的遗传变异:基于微卫星标记的评估
IF 3.6 2区 农林科学 Q1 AGRONOMY Pub Date : 2023-09-07 DOI: 10.3390/agriculture13091772
A. Magaña-Álvarez, D. Pérez-Brito, A. Cortés-Velázquez, Á. Nexticapan-Garcéz, M. E. ORTEGA-RAMIREZ, I. García-Cámara, Yasmín Sánchez-Rodríguez, R. Martín-Mex
Oil palm (Elaeis guineensis Jacq.) has become the largest source of vegetable oil in the world. It is known that all existing genotypes of this species are related, so their genetic variability is considered to be low. In Mexico, all oil palm plantations are located in the southeast of the country, and they are established with different origins seeds, which has caused poor yields and resulted in the need to establish a genetic improvement program. Therefore, in this study, the extent of genetic diversity among 151 oil palm accessions from all producing regions of Mexico was assessed with twenty simple sequence repeats (SSRs) and seven random amplified microsatellite (RAM) markers. The markers utilized proved to be useful in revealing high existing genetic variability, with a total of 1218 and 708 alleles detected and polymorphic information content (PIC) of 0.96 and 0.91 for RAM and SSR, respectively. The genetic distance among all accessions of oil palm collected ranged between 31% and 82% for similarity. Accessions from Tabasco and Veracruz presented the greatest and smallest genetic diversity, respectively. These results can allow breeding strategies to be established for the genetic improvement of this crop in Mexico.
油棕(Elaeis guineensis Jacq.)已成为世界上最大的植物油来源。已知该物种的所有现有基因型都是相关的,因此它们的遗传变异性被认为是低的。在墨西哥,所有的油棕种植园都位于该国的东南部,它们是用不同来源的种子建立的,这导致了产量低,并导致需要建立一个遗传改进计划。因此,本研究利用20个简单序列重复(SSRs)和7个随机扩增微卫星(RAM)标记对墨西哥所有产区的151份油棕材料的遗传多样性程度进行了评估。所利用的标记显示了较高的遗传变异,共检测到1218个和708个等位基因,RAM和SSR的多态性信息含量(PIC)分别为0.96和0.91。所收集的所有油棕种质间的遗传距离在31% ~ 82%之间。来自塔巴斯科和韦拉克鲁斯的材料分别表现出最大和最小的遗传多样性。这些结果可以为墨西哥这种作物的遗传改良建立育种策略。
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Agriculture-Basel
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