Crop Protection最新文献_第3页

Sustainable management of fusarium rots in melons: A dual strategy combining thermotherapy and 1-MCP 瓜类枯萎病的可持续治理：热疗与1-MCP相结合的双重策略

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection

Pub Date : 2025-12-15 DOI: 10.1016/j.cropro.2025.107522

Breno de H. Almeida , Maria H.D. Costa , Luiz F.B. Evangelista , Rebeca M.S. Frutuoso , Atarissis M. Dias , Jarlan L.S. Silva , Daniel J. Silva , Jackson T. Lobo , Washington da Silva , Márcia M.Q. Ambrósio

Brazil is a leading producer and exporter of Galia melon (Cucumis melo L.), a variety renowned for its exceptional sensory qualities. However, postharvest diseases caused by Fusarium spp. Lead to significant economic losses, estimated at up to US$22 million annually. The current reliance on fungicides, such as Imazalil, is unsustainable due to regulatory restrictions and the increasing fungal resistance to current chemistry, which calls for the development of alternative control strategies. In this study, we investigated the effectiveness of thermotherapy combined with ripening phytoregulators for managing rots caused by F. falciforme and F. sulawesiense in Galia melons. Inoculated fruits underwent eight different treatments [Mock (control), HWT (hot water treatment), 1-MCP (1-methylcyclopropene), HWT + 1-MCP, GA (gibberellin), HWT + GA, GRAD (Graduate A+®), and HWT + GRAD] and were stored for 20 days at 10 ± 2 °C. We evaluated disease severity, melon fruit physicochemical parameters, and the activity of plant defense enzymes. Most treatments significantly reduced rot severity compared to the control. Notably, Graduate A+® achieved up to a 72.9 % reduction, and its efficacy was enhanced when combined with thermotherapy. Furthermore, 1- methylcyclopropene (1-MCP) treatment, alone and with thermotherapy, preserved postharvest quality and enhanced defense-related enzyme activity. These findings suggest that the combination of thermotherapy and 1-MCP represents a promising and sustainable approach to reducing Fusarium rot in Galia melons destined for export, with no associated regulatory risks.

巴西是加利亚甜瓜（Cucumis melo L.）的主要生产国和出口国，该品种以其独特的感官品质而闻名。然而，镰刀菌引起的采后疾病造成重大的经济损失，估计每年高达2200万美元。由于监管限制和真菌对现有化学物质的抗性日益增强，目前对杀菌剂（如Imazalil）的依赖是不可持续的，这要求开发替代控制策略。在本研究中，我们研究了热疗联合成熟植物调节剂对甜瓜镰状镰刀菌和苏拉韦西镰刀菌腐烂的治理效果。接种后的果实经过8种不同处理[Mock（对照）、HWT（热水处理）、1-MCP（1-甲基环丙烯）、HWT + 1-MCP、GA（赤霉素）、HWT + GA、GRAD （Graduate A+®）和HWT + GRAD]，在10±2°C下保存20天。我们评估了病害的严重程度、甜瓜果实的理化参数和植物防御酶的活性。与对照相比，大多数处理显著降低了腐烂严重程度。值得注意的是，Graduate A+®实现了高达72.9%的减少，并且当与热疗法结合时，其疗效得到增强。此外，1-甲基环丙烯（1- mcp）处理，单独或结合热疗，可以保持采后品质，增强防御相关酶的活性。这些研究结果表明，结合热疗法和1-MCP是一种有前途的、可持续的方法，可以减少出口甜瓜的镰刀菌腐烂，而且没有相关的监管风险。

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引用次数: 0

Odors from nymphal exuviae attract nymphs and gravid females of the cotton seed bug, Oxycarenus hyalinipennis (Hemiptera: Oxycarenidae) 棉籽虫（半翅目：棉籽虫科）的若虫和受精卵散发出气味。

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection

Pub Date : 2025-12-12 DOI: 10.1016/j.cropro.2025.107521

Ahmed M. Saveer, Gundersen-Rindal Dawn, Aijun Zhang

The cotton seed bug (CSB), Oxycarenus hyalinipennis (Hemiptera: Oxycarenidae), globally emerging pest native to Africa, is a serious insect pest of cotton, posing a significant threat to crop yield and quality. Both nymphs and adults feed on developing cotton seeds. Volatile organic compounds (VOCs) are key mediators of behavioral responses in heteropteran insects, including CSB, influencing aggregation, mating, and oviposition. In this study, we evaluated the behavioral role of volatiles emitted from nymph exuviae of CSB. Using a combination of Y-tube olfactometer, dual-choice refuge, and dual-choice oviposition bioassays, we assessed the responses of different developmental stages and reproductive statuses to exuviae-associated VOCs. Our results showed that nymphs and mated females were significantly attracted to nymph exuviae VOCs, with nymphs showing >78% and mated females >73% preference in both the Y-tube and refuge assays, whereas unmated females and males (mated and unmated) exhibited no attraction or a slight aversion. Furthermore, gravid females preferentially oviposited on cotton seeds exposed to nymph exuviae VOCs, suggesting that these chemical cues signal suitable oviposition sites, optimizing the chances for the offspring survivorship. This study provides the first evidence that exuviae-associated VOCs in O. hyalinipennis serve as multifunctional semiochemicals, guiding both aggregation and reproductive behavior. These findings offer new insights into the chemical ecology of CSB and highlight potential avenues for semiochemical-based pest management strategies to control CSB population, including the development of attract-and-kill systems for use in integrated pest management (IPM) programs.

棉花籽虫（Oxycarenus hyalinipennis，半翅目：Oxycarenus hyalinipennis）是一种全球新兴害虫，原产于非洲，是棉花的严重害虫，对作物产量和品质构成严重威胁。若虫和成虫都以发育中的棉籽为食。挥发性有机化合物（VOCs）是异翅目昆虫（包括CSB）行为反应的关键介质，影响聚集、交配和产卵。在本研究中，我们评估了CSB若虫蜕皮挥发物的行为作用。采用y管嗅觉测定法、双选择避难法和双选择产卵法，研究了不同发育阶段和生殖状态对挥发性有机化合物的反应。结果表明，若虫和交配雌虫对若虫分泌物的挥发性有机化合物有明显的吸引力，在y管和避难所试验中，若虫和交配雌虫的偏好分别为78%和73%，而未交配雌虫和雄虫（交配和未交配）则没有吸引力或有轻微的厌恶。此外，受精后的雌棉铃虫更倾向于在暴露于若虫挥发性有机化合物的棉籽上产卵，这表明这些化学信号表明了合适的产卵地点，从而优化了后代的存活率。该研究首次证明了透明鳍蛙的挥发性有机化合物是一种多功能的半化学物质，可以指导它们的聚集和繁殖行为。这些发现为CSB的化学生态学提供了新的见解，并强调了基于半化学的害虫管理策略来控制CSB种群的潜在途径，包括开发用于害虫综合管理（IPM）计划的吸引和杀死系统。

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引用次数: 0

First report of Diaporthe drenthii causing leaf spot disease of Hedera canariensis in Guizhou, China 引起贵州金丝雀叶斑病的散斑蝇首次报道

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection

Pub Date : 2025-12-11 DOI: 10.1016/j.cropro.2025.107520

Yu-Jia Sun , Chada Norphanphoun , Shan Wei , Fatimah Al-Otibi , Kevin D. Hyde , Yong Wang

Hedera canariensis is commonly utilized in urban landscaping and greening initiatives due to its robust climbing ability, strong adhesion, and its role in enhancing air quality. This research identified a leaf spot disease affecting H. canariensis in Guizhou Province, China. The pathogen was isolated using the single-spore isolation method and identified based on morphological characteristics, with phylogenetic analysis of combined gene sequence data (ITS, ef1-α, and β-tubulin). The causal agent was identified as Diaporthe drenthii. Pathogenicity was confirmed under greenhouse conditions, satisfying Koch's postulates. This study documents the first instance of D. drenthii as a pathogenic fungus causing leaf spot disease in H. canariensis. The findings underscore a significant threat to the viability of H. canariensis posed by D. drenthii, providing a vital foundation for future research on the epidemiology and development of control strategies.

由于其强大的攀爬能力、强附着力和改善空气质量的作用，加那利Hedera canariensis通常用于城市景观美化和绿化计划。本研究鉴定了一种影响中国贵州省金丝雀叶斑病。采用单孢子分离法分离病原菌，根据形态特征进行鉴定，结合ITS、ef1-α和β-微管蛋白的组合基因序列数据进行系统发育分析。病因被确定为散斑虫。在温室条件下证实了致病性，符合科赫的假设。本研究首次记录了作为一种致病真菌引起canariensis叶斑病的drenthii。研究结果表明，达伦蒂伊蚊对加那利红僵虫的生存能力构成了严重威胁，为进一步开展流行病学研究和制定防治策略提供了重要依据。

引用次数: 0

Development and application of a loop-mediated isothermal amplification assay for early detection of Golovinomyces tabaci in tobacco 环介导等温扩增法在烟草中早期检测烟草绿弧菌的建立与应用

IF 2.8 2区农林科学 Q1 AGRONOMY

Crop Protection

Pub Date : 2025-12-10 DOI: 10.1016/j.cropro.2025.107518

Shuhe Wang, Mengyu Zhang, Jia Li, Yebin Kang

引用次数: 0

First report of Fusarium solani causing bulb rot of British bluebells (Hyacinthoides non-scripta) 引起英国风信子球茎腐病的枯萎病菌首次报告

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection

Pub Date : 2025-12-09 DOI: 10.1016/j.cropro.2025.107519

Shu Miura , Tianlan Liao , Xing Du , Jinyan Luo , Ying Shen , Lei Chen , Bin Li , Qianli An

British bluebell [Hyacinthoides non-scripta (L.) Chouard ex Rothm.] is native to British Isles and North-Central Europe and has been introduced to America, Oceania, and Asia due to its aesthetic and horticultural appeal. In November 2022, rotten bulbs of British bluebell were found in Songjiang District, Shanghai, China. Fungal isolates from the rotten bulbs were identified as Fusarium based on ITS sequences. Further analyses of tef1, rpb1, and rpb2 barcoding sequences and conidial micromorphology identified the Fusarium isolates as F. solani. The pathogenicity of the F. solani isolates was verified and fulfilled Koch's postulates. This is the first report that F. solani causes bulb rot of British bluebell.

英国风信子[风信子属]Chouard ex Rothm。原产于不列颠群岛和中欧北部，由于其美学和园艺的吸引力，已被引入美洲、大洋洲和亚洲。2022年11月，在中国上海松江区发现了英国风信子腐烂的球茎。从腐烂球茎中分离的真菌经ITS序列鉴定为镰刀菌。进一步分析菌株的tef1、rpb1和rpb2条形码序列和分生孢子微观形态，确定菌株为枯萎镰刀菌。梭兰氏菌分离株的致病性得到证实，并符合科赫的假设。这是首次报道由茄蚜引起的英国风信子球茎腐病。

引用次数: 0

Susceptibility to eight common chemical insecticides in Helicoverpa zea populations from the southern United States 美国南部玉米Helicoverpa zea种群对8种常用化学杀虫剂的敏感性

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection

Pub Date : 2025-12-09 DOI: 10.1016/j.cropro.2025.107517

Bhavana Patla , Tiago Silva , Shucong Lin , Graham P. Head , Francis P.F. Reay-Jones , Xinzhi Ni , Lina Bernaola , Sebe Brown , Don Cook , James Villegas , Jeffrey A. Davis , Fangneng Huang

Larvae of Helicoverpa zea are highly destructive lepidopteran pests that damage a wide range of field crops and vegetables across North America. Transgenic Bacillus thuringiensis (Bt) cotton and maize have been employed extensively since 1996 to manage H. zea infestations in the U.S. However, the insect has recently developed widespread resistance to Cry1 and Cry2 Bt proteins, leading to increased H. zea infestations and more frequent insecticide applications in cotton to control the pest. This study investigated the susceptibility of 17 populations of H. zea collected from six southern U.S. states in 2023 and 2024 to eight common insecticides: acephate, diflubenzuron, λ-cyhalothrin, spinosad, indoxacarb, methoxyfenozide, novaluron, and chlorantraniliprole. Relative to a laboratory reference strain, the field-collected populations were still susceptible to acephate, spinosad, and chlorantraniliprole. Most of the field populations exhibited low to moderate levels of resistance to diflubenzuron (1.9- to 7.8-fold), indoxacarb (1.6- to 12.9-fold), and methoxyfenozide (1.4- to 31.0-fold), while some populations had high levels of resistance to λ-cyhalothrin (up to >51.9-fold) and novaluron (up to 141.8-fold). There were no correlations in the LC₅₀ values among the insecticides to which H. zea has developed resistance. Given the uncertain future of acephate for agricultural use, the documented susceptibility of H. zea to chlorantraniliprole and spinosad offers options for managing H. zea and mitigating Bt/chemical resistance in the southern U.S.

玉米Helicoverpa zea的幼虫是一种极具破坏性的鳞翅目害虫，在北美范围内危害广泛的大田作物和蔬菜。自1996年以来，转基因苏云金芽孢杆菌（Bt）棉花和玉米在美国被广泛应用于控制玉米h.z a侵染。然而，这种昆虫最近对Cry1和Cry2 Bt蛋白产生了广泛的抗性，导致玉米h.z a侵染增加，并且更频繁地在棉花上使用杀虫剂来控制害虫。本研究调查了2023年和2024年在美国南部6个州采集的17个玉米螟种群对8种常用杀虫剂的敏感性：乙酰甲胺磷、双氟虫腈、氯氟氰菊酯、思乐美沙、茚虫威、甲氧虫酰肼、新伐虫隆和氯虫腈。与实验室对照菌株相比，野外采集的种群对乙酰甲胺磷、氨磷和氯虫腈仍敏感。大多数田间种群对二氟虫腈（1.9- 7.8倍）、茚虫威（1.6- 12.9倍）和甲氧虫腈（1.4- 31.0倍）表现出低至中等水平的抗性，而一些种群对氯氟氰菊酯（高达51.9倍）和异氰菊酯（高达141.8倍）表现出高水平的抗性。玉米蚜对不同杀虫剂产生抗性的LC50值无相关性。考虑到乙酰甲胺磷用于农业用途的不确定未来，记录在案的玉米h.a a对氯虫腈和spinosad的敏感性为管理玉米h.a a和减轻美国南部的Bt/化学抗性提供了选择

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引用次数: 0

First report of Stemphylium xanthosomatis causing leaf spot disease in Polygonatum cyrtonema Hua in China 黄体茎蚜引起黄精叶斑病在国内首次报道

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection

Pub Date : 2025-12-04 DOI: 10.1016/j.cropro.2025.107516

Wensong Zhang , Kaiyun Jiang , Shuang Liang , Xiangsheng Chen , Zhong Li , Fengquan Liu

Polygonatum cyrtonema Hua (“yellow essence”) belongs to the family Liliaceae and is a valuable component of Chinese medicine. In October 2024, a survey of a Chinese herbal medicine planting base in Kaili City, Guizhou Province, found that P. cyrtonema Hua was affected by a serious disease with an incidence of 35–60 % that substantially reduced its yield and quality and, commensurately, economic return. Koch's postulates, molecular phylogenetic analysis, and morphology confirmed Stemphylium xanthosomatis as the causative pathogen. This is the first report of S. xanthosomatis infecting P. cyrtonema Hua. This study enriches the pathogen diversity database of P. cyrtonema Hua and provides an essential theoretical foundation for disease diagnosis and targeted management strategies.

黄精（Polygonatum cyrtonema Hua）属于百合科植物，是中药的重要成分。2024年10月，对贵州省凯里市中药材种植基地的调查发现，花青藤患了一种严重的病害，发病率为35 - 60%，严重影响了其产量和质量，并相应地降低了经济效益。科赫的假设、分子系统发育分析和形态学证实了黄体茎孢是致病病原体。本文为首次报道黄体索菌感染华胞单胞菌的病例。本研究丰富了华胞单胞菌病原菌多样性数据库，为疾病诊断和有针对性的管理策略提供了必要的理论依据。

引用次数: 0

Misconceptions and advances in sustainable biocontrol of Botrytis cinerea in grapevines. A review 葡萄葡萄灰霉病可持续生物防治的误区与进展。回顾

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection

Pub Date : 2025-12-04 DOI: 10.1016/j.cropro.2025.107515

José Luis Padilla-Agudelo , Elena Palencia Mulero , Gianluigi Cardinali , Jesús Manuel Cantoral , Gustavo Cordero-Bueso , Ileana Vigentini

Gray mold, caused by the necrotrophic fungus Botrytis cinerea, is among the most destructive diseases of grapevine, with yield losses that can exceed 40–70 % depending on cultivar, climate and post-harvest handling. Growing fungicide resistance and policy-driven reductions in the use of synthetic pesticides further tighten control options, creating an urgent need for eco-friendly alternatives. Biological control agents (BCAs), including antagonistic yeasts, bacteria and filamentous fungi, address this need; however, their field performance is often inconsistent and misconceptions persist about pathogen ecology, optimal application timing and regulatory requirements.

This review consolidates recent progress in sustainable biocontrol of gray mold and analyses how four biocontrol-enhancing attributes: (i) antagonist diversity, (ii) solo versus consortium applications, (iii) protective formulations, and (iv) risk-aligned spray timing guided by disease-forecast models. The key findings are as follows: 1) new insights into multitrophic interactions now guide targeted strain selection; 2) precision-application technologies align BCA delivery with pathogen risk windows, reducing product losses; 3) innovative formulations and well-designed microbial consortia extend persistence under field stress; 4) epidemiological modelling reveals climate-driven shifts in gray-mold pressure and their implications for BCA success; and 5) adoption barriers can be lowered through harmonized regulation and grower education. Combining these attributes results in mean reductions in bunch-rot severity, outlining a credible pathway toward reliable, pesticide-sparing management of B. cinerea and supporting the transition to more sustainable viticulture.

灰霉病由坏死性真菌灰霉病（Botrytis cinerea）引起，是葡萄最具破坏性的病害之一，根据品种、气候和收获后处理的不同，产量损失可超过40 - 70%。杀菌剂耐药性的增长和政策驱动下合成农药使用的减少进一步收紧了控制选择，迫切需要生态友好的替代品。生物防治剂（bca），包括拮抗酵母菌、细菌和丝状真菌，满足了这一需求；然而，它们的现场表现往往不一致，并且对病原体生态学、最佳应用时间和监管要求仍然存在误解。本文综述了灰霉病可持续生物防治的最新进展，并分析了四种生物防治增强属性：(i)拮抗剂多样性，（ii）单独应用与联合应用，（iii）保护性配方，以及（iv）疾病预测模型指导下与风险一致的喷雾时机。主要发现如下：1)对多营养相互作用的新认识为有针对性的菌株选择提供了指导；2)精准应用技术使BCA递送与病原体风险窗口对齐，减少产品损失；3)创新配方和精心设计的微生物群落延长了田间胁迫下的持久性；4)流行病学模型揭示了气候驱动的灰霉菌压力变化及其对BCA成功的影响；5)通过协调监管和种植者教育可以降低采用障碍。结合这些特性，束腐病的严重程度平均降低，勾勒出一条可靠的、农药节约管理的可靠途径，并支持向更可持续的葡萄栽培过渡。

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引用次数: 0

Soil amendments and flooding practices for mitigating Fusarium wilt of lettuce on Florida histosols 土壤改良剂和水淹措施减轻佛罗里达组织上莴苣枯萎病

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection

Pub Date : 2025-12-02 DOI: 10.1016/j.cropro.2025.107511

Jesse J. Murray, Germán V. Sandoya

Fusarium wilt of lettuce (FWL) caused by Fusarium oxysporum f. sp. lactucae increasingly threatens major lettuce producing regions globally. As lettuce production practices may differ regionally, discovering how locally adapted practices such as soil amendments, crop rotation, and flooding impact FWL may help growers diversify their disease management options. Therefore, this research was conducted in the Everglades Agricultural Area (EAA) in south Florida, USA to determine how locally recommended applications of pH amendments, phosphorus fertilizer rates and soil flooding impact FWL in artificially infested histosol soils. Similar to previous research, applying sulfur increased FWL symptoms, whereas applying lime and phosphorus fertilizer tended to reduce root discoloration compared to the untreated control. As a result, EAA lettuce producers should consider foliar nutrient applications, as opposed to band-applying sulfur, in fields infested with Fusarium oxysporum f. sp. lactucae. Lime applications should only be considered when soil pH < 5.2, whereas recommendations are not warranted for adjusting phosphorus fertilizer rates. Soil amendments had the greatest impact on FWL symptoms for partially resistant cultivars, highlighting the need for optimal management in preserving their durability. Flooding soil reduced the pathogen inoculum by 64 % after 90 days, showing that flooding Fusarium oxysporum f. sp. lactucae-infested soil has potential to reduce inoculum faster than previous studies testing fallowing alone. Despite the reduction in CFUs, FWL symptoms persisted when planting a susceptible lettuce cultivar, indicating further testing is needed for implementing this practice.

由莴苣枯萎病（Fusarium oxysporum f. sp. lactucae）引起的莴苣枯萎病（Fusarium wilt of lettuce）日益威胁着全球主要莴苣产区。由于莴苣的生产方式可能因地区而异，因此发现当地适应的做法（如土壤改良剂、作物轮作和洪水影响FWL）可能有助于种植者多样化其疾病管理选择。因此，本研究在美国佛罗里达州南部的Everglades农业区（EAA）进行，以确定在人工侵染的组织土壤中，当地推荐的pH修正、磷肥施用量和土壤洪水对FWL的影响。与之前的研究类似，施用硫增加了FWL症状，而施用石灰和磷肥与未处理的对照相比，倾向于减少根变色。因此，EAA莴苣生产者应考虑叶面养分施用，而不是带施硫，在枯萎镰刀菌侵染的田地。只有当土壤pH值为5.2时，才应考虑石灰的施用，而调整磷肥用量的建议则没有根据。土壤改良剂对部分抗性品种的FWL症状影响最大，强调了保持其耐久性的最佳管理的必要性。土壤淹水90天后病原菌的接种量减少了64%，表明土壤淹水比单独试验更快地降低了乳酸镰刀菌的接种量。尽管CFUs减少了，但在种植易感生菜品种时，FWL症状仍然存在，这表明需要进一步的测试来实施这种做法。

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引用次数: 0

Climate change effects on the weed suppressive ability of several cover crop mixtures 气候变化对几种覆盖作物混交种抑杂草能力的影响

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection

Pub Date : 2025-12-01 DOI: 10.1016/j.cropro.2025.107514

Matthias Schumacher, Veronika Klimeck, Roland Gerhards

Climate change effects, such as rising temperature, carbon dioxide levels and extreme weather events, impact agriculture directly by reduction of crop yields and indirectly by increasing damage of crop pests. Therefore, preventive methods of plant protection, like cover cropping in integrated weed management, gain in importance. Their performance, however, depends on soil moisture and temperature in late summer. This study examined the effects of elevated temperature (+5 °C) and increasing drought levels (no, mild and severe drought) on four commercial and two self-composed cover crop mixtures and their weed suppression performance in a split-plot greenhouse experiment from 2020 to 2022. Cover crop (CC) and weed biomass were assessed, along with weed control efficacy (WCE) and soil coverage. A canonical correspondence analysis (CCA) was performed to identify drought and temperature tolerant species. Both, elevated temperature and increasing drought level, reduced CC biomass and soil cover by 50 %, severe drought even by more than 80 %. Weed biomass was affected similarly, only severe drought reduced it by more than 90 %. Nevertheless, CC mixtures, and the self-composed mixtures in particular, reduced weed biomass further and showed consistently WCE of more than 80 % and up to 98 %. The CCA revealed that Sorghum bicolor, Brassica carinata and Camelina sativa are promising species for future CC mixtures. Even though their biomass and soil coverage were reduced drastically by the examined climate change effects, CC mixtures still showed a high weed control ability. This resilience might be improved further by adjusted sowing dates and establishment methods and in turn improve CC performance under adverse climate change conditions.

气候变化的影响，如气温上升、二氧化碳水平升高和极端天气事件，通过减少作物产量直接影响农业，通过增加作物害虫的损害间接影响农业。因此，植物保护的预防性方法，如杂草综合管理中的覆盖种植，变得越来越重要。然而，它们的性能取决于夏末的土壤湿度和温度。在2020 - 2022年的分块温室试验中，研究了温度升高（+5°C）和干旱程度增加（无干旱、轻度干旱和重度干旱）对4种商品覆盖作物和2种自组成覆盖作物混合物及其杂草抑制性能的影响。评估覆盖作物（CC）和杂草生物量，以及杂草防治效果（WCE）和土壤覆盖度。采用典型对应分析（canonical correspondence analysis， CCA）对耐旱耐温树种进行了鉴定。温度升高和干旱程度加重，使CC生物量和土壤覆盖减少50%，严重干旱甚至减少80%以上。杂草生物量也受到类似的影响，只有严重干旱使其减少了90%以上。然而，CC混合物，特别是自组成混合物，进一步减少了杂草生物量，WCE一直在80%以上，最高可达98%。CCA结果表明，双色高粱、芸苔和亚麻荠是未来CC混合物中较有潜力的品种。尽管受气候变化的影响，它们的生物量和土壤覆盖度急剧下降，但CC混合料仍然显示出较高的杂草控制能力。通过调整播种日期和建立方法，这种恢复力可能会进一步提高，从而提高CC在不利气候变化条件下的性能。

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引用次数: 0