Scientia Horticulturae最新文献_第4页

Long-term effects of agrivoltaics on yield and fruit quality performance of bi-color (blush) pears 农电对双色梨产量和果实品质的长期影响

IF 4.2 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae

Pub Date : 2026-02-01 DOI: 10.1016/j.scienta.2026.114663

Alessio Scalisi , Lexie McClymont , Madeleine Peavey , Ian Goodwin

This four-year study investigated the long-term impacts of fixed (non-movable) agrivoltaic systems on the productivity and fruit quality of the Australian blush pear ‘ANP-0118′ in a high-solar radiation environment in Victoria, Australia. Here we show for the first time that fixed-orientation, agrivoltaics significantly alter yield and quality of blush pears over four years. Trees were grown under three treatments: an unshaded control, solar panels tilted at 45° to the west (45°W), and solar panels tilted 5° to the west (5°W). The 45°W and 5°W arrays intercepted 40 % and 46 % of incoming radiation, respectively. Across four seasons (2021–22 to 2024–25), cumulative yields reached 137 t ha⁻¹ in the control but declined to 89 and 77 t ha⁻¹ in 45°W and 5°W treatments, respectively. The four-year average yield in control trees was 34 t ha^-1, followed by 45°W (22 t ha^-1) and 5°W (19 t ha^-1). However, higher yields in control trees were also associated with an increased year-to-year coefficient of variation (32 %) compared to 45°W (19 %) and 5°W (12 %). Blush coverage decreased by 15.4 % (5°W) and 13.4 % (45°W) relative to the control, while green background increased by 21.6 % and 18.3 %, respectively. Soluble solids content also declined under shading, but flesh firmness remained unaffected. Notably, sunburn incidence in the hottest season was 7.0 % in the control but ≤ 1.2 % in shaded treatments. Hail damage in 2022–23 and 2023–24 was reduced by up to 18.2 % in the 5°W system. Physiological responses indicated higher trunk growth and improved photosystem II efficiency under shade, with no impacts on tree water status. Model projections suggest that agrivoltaic systems designed with 20–25 % shade factors could limit 10-year yield reductions to approximately 20 %. These findings highlight the trade-offs between energy generation, yield reduction, and quality loss, balanced by protection against sunburn and hail. Fixed agrivoltaics may benefit pear production in high-radiation regions if systems are tailored to cultivar sensitivity and local climate risk.

这项为期四年的研究调查了固定（不可移动）农业光伏系统在澳大利亚维多利亚州高太阳辐射环境下对澳大利亚红梨“ANP-0118”的生产力和果实质量的长期影响。在这里，我们首次表明，固定定向，农业发电显著改变产量和质量的红梨超过四年。树木在三种处理下生长：无阴影的对照，太阳能电池板向西倾斜45°（45°W），太阳能电池板向西倾斜5°（5°W）。45°W和5°W阵列分别拦截了40%和46%的入射辐射。在四个季节（2021-22至2024-25）中，对照组的累积产量达到137吨（⁻），而45°W和5°W处理的累积产量分别下降到89吨和77吨（⁻）。对照树4年平均产量为34 t ha-1，其次是45°W （22 t ha-1）和5°W （19 t ha-1）。然而，与45°W（19%）和5°W（12%）相比，对照树的较高产量也与年变异系数（32%）增加有关。与对照相比，腮红覆盖率分别下降了15.4%（5°W）和13.4%(45°W)，而绿色背景分别增加了21.6%和18.3%。可溶性固形物含量在遮荫下也有所下降，但果肉硬度未受影响。值得注意的是，在最热季节，对照的晒伤发生率为7.0%，而遮荫处理的晒伤发生率≤1.2%。在5°W系统下，2022-23年和2023-24年的冰雹损害减少了18.2%。生理反应表明，遮荫下树干生长加快，光系统II效率提高，但对树木水分状况没有影响。模型预测表明，采用20 - 25%遮荫因素设计的农业光伏系统可以将10年产量下降限制在约20%。这些发现强调了能源产生、产量减少和质量损失之间的权衡，以及防止晒伤和冰雹的平衡。如果系统适合栽培敏感性和当地气候风险，那么固定的农业发电可能有利于高辐射地区的梨生产。

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引用次数: 0

LiDAR-based assessment of canopy size variability and its impact on irrigation efficiency and yield in almond orchards 基于激光雷达的杏树林冠层大小变异及其对灌溉效率和产量的影响

IF 4.2 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae

Pub Date : 2026-02-01 DOI: 10.1016/j.scienta.2026.114652

Rafael Orozco-Moran , Jose A. Jimenez-Berni , Elias Fereres , Francisco Orgaz

Water use in almond orchards is strongly conditioned by tree canopy size. However, conventional irrigation management does not take into account the structural variability in tree size present within management units, which can lead to inefficient use of water. This study quantifies the impact of tree structural heterogeneity, estimated from Ground Cover (GC) measurements obtained through LiDAR technology, on water–yield relationships in a commercial almond orchard (cv. Lauranne). A theoretical and uniform model based on the weighted average GC calculated with LiDAR (Scenario A) was compared against a water–yield model that incorporates the ground cover variability of individual trees in the orchard response (Scenario B). Results show that the model accounting for canopy heterogeneity enables quantification of yield losses associated with treating all trees uniformly. At the maximum yield point estimated in Scenario A, Scenario B predicts a reduction in production due to the variations in size which is equivalent to the potential gain achievable through the implementation of precision irrigation. Moreover, the analysis of Marginal Water Productivity (MWP) revealed that approaches based on orchard average size (Scenario A) fail to capture the true marginal returns of water application. Under conditions of structural variability (Scenario B), MWP is greater than in Scenario A over a wider range of applied water. This implies that decisions based on Scenario A lead to selecting irrigation depths below the optimum, forgoing profitable production, or failing to recognize when differential water application would generate greater returns per unit of water. These findings demonstrate that ignoring intra-plot variability leads to inaccurate characterization of water-yield relationships and masks spatial inefficiencies. The integration of LiDAR-derived structural data increases the accuracy of water-yield models and identifies relevant opportunities to optimize irrigation scheduling at the sector scale, thereby improving water use efficiency even before the adoption of variable-rate irrigation technologies.

杏仁果园的水分利用受到树冠大小的强烈影响。然而，传统的灌溉管理没有考虑到管理单位内树木大小的结构变化，这可能导致用水效率低下。本研究量化了树木结构异质性对商业杏树果园产水量关系的影响，该影响是通过激光雷达技术获得的地表覆盖（GC）测量结果估计的。Lauranne)。将基于激光雷达计算的加权平均GC的理论统一模型（情景A）与包含果园响应中单株树木地面覆盖变率的产水量模型（情景B）进行比较。结果表明，考虑冠层异质性的模型可以量化均匀处理所有树木的产量损失。在情景A中估计的最大产量点，情景B预测由于大小变化而导致的产量减少，这相当于通过实施精确灌溉可以实现的潜在收益。此外，边际水分生产力（MWP）分析表明，基于果园平均规模（情景A）的方法无法捕捉到水分应用的真实边际收益。在结构变异性条件下（情景B），在更大的施水量范围内，MWP大于情景A。这意味着，基于情景A的决策导致选择低于最佳灌溉深度的灌溉，从而放弃有利可图的生产，或者未能认识到不同的用水方式何时能产生更大的单位水回报。这些研究结果表明，忽略地块内的变异会导致水量关系的不准确表征，并掩盖空间效率低下。激光雷达衍生结构数据的集成提高了水量模型的准确性，并确定了在部门规模上优化灌溉调度的相关机会，从而在采用可变速率灌溉技术之前提高了水的利用效率。

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引用次数: 0

Biochemical indicators to diagnose iron nutritional status of olive (Olea europaea L.) 橄榄铁营养状况的生化指标诊断

IF 4.2 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae

Pub Date : 2026-02-01 DOI: 10.1016/j.scienta.2026.114662

Amir Hossein Khoshgoftarmanesh

While iron (Fe) chlorosis undesirably affects the growth and yield of olive (Olea europaea L.) in calcareous soils, no proper indicator is available to diagnose Fe nutritional status of plant. This two-year study aimed to find out a valid biochemical indicator most related to the plant Fe status. Eight olive orchards with different soil characteristics were selected in various regions of Isfahan province, Iran. In each orchard, 6 uniform trees with similar size, age, and performance were selected, half of the trees received 0.150 kg Fe in the form of FeEDDHA (6%) and thereafter exhibited no or slight chlorosis symptoms while the other half did not receive Fe and showed severe chlorosis symptoms. The results did not confirm any relationship between Fe concentration in the leaves and severity of chlorosis symptoms. Neither phosphorus (P) concentration nor the activity of ascorbate peroxidase (APX) and peroxide (POX) in plant leaves were useful indicators to diagnose Fe deficiency in olive trees. Leaf concentration of carotenoids and chlorophyll b in the leaves was also poor indicators to separate chlorotic and green trees. In contrast, concentration of chlorophyll a and activity of catalase (CAT) in the leaves were strongly correlated with the severity of chlorosis. The chlorophyll a concentration in more than 85% of chlorotic leaves was less than 0.6 mg g^-1 FW. Additionally, in more than 96% of chlorotic leaves, the leaf activity of CAT was less than 1.5 Unit mg protein^-1. According to the results, activity of CAT and concentration of chlorophyll a can successfully be used as proper indicators to diagnose Fe status in olive trees.

钙质土壤中铁（Fe）的黄化对橄榄的生长和产量有不良影响，但目前还没有合适的指标来诊断植物的铁营养状况。这项为期两年的研究旨在寻找与植物铁状态最相关的有效生化指标。在伊朗伊斯法罕省的不同地区选择了8个具有不同土壤特征的橄榄园。在每个果园中，选择6棵大小、树龄、性能相近的均匀树木，其中一半以FeEDDHA的形式接受了0.150 kg的铁（6%），此后没有或轻微的黄化症状，而另一半没有接受铁并出现严重的黄化症状。结果没有证实叶片中铁浓度与黄化症状严重程度之间的任何关系。植物叶片中磷(P)浓度、抗坏血酸过氧化物酶（APX）和过氧化物酶（POX）活性均不能作为诊断橄榄树缺铁的有效指标。叶片中类胡萝卜素和叶绿素b的浓度也不是区分绿绿树和绿绿树的较差指标。叶绿素a浓度和过氧化氢酶（CAT）活性与黄化程度呈显著正相关。85%以上的叶片叶绿素a浓度低于0.6 mg g-1 FW。此外，在96%以上的褪绿叶片中，CAT的叶片活性低于1.5单位mg protein-1。结果表明，CAT活性和叶绿素a浓度可作为诊断橄榄树铁状态的指标。

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引用次数: 0

Foliar application of 2-amino-3-methylhexanoic acid enhances low temperature tolerance in five key horticultural crops 叶面施用2-氨基-3-甲基己酸可提高5种主要园艺作物的耐低温性

IF 4.2 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae

Pub Date : 2026-02-01 DOI: 10.1016/j.scienta.2026.114669

Yu Ji , Qing Shen , Yanjing Guo , Qizhen Chen , Keyi Li , He Wang , Lan Wang , Xuejin Chen , Wanping Fang , Shiguo Chen

Low temperature (LT) stress is a major factor limiting crop productivity in temperate and subtropical regions. 2-Amino-3-methylhexanoic acid (AMHA), a novel natural plant resistance inducer (PRI), demonstrates significant potential for mitigating LT-induced physiological damage. This study assessed the efficacy of AMHA in enhancing cold tolerance across five key horticultural crops―pepper, tomato, strawberry, cabbage, and tea―under field conditions. Comparative trials with conventional PRIs, brassinosteroid (BR) and alginate oligosaccharides (AOS) revealed that AMHA, even at low doses (8.7−65.3 mg ha⁻¹), significantly enhanced seedling vigor by stimulating root and shoot growth. This improvement not only increased LT tolerance but also promoted vegetative growth, reproductive potential, and ultimately overall yield and fruit quality. Notably, AMHA consistently exceeded BR and AOS in promoting cold tolerance, exhibiting high efficacy across these taxonomically diverse crops. Toxicological evaluations confirmed its excellent safety profile, with minimal non-target toxicity and no observable irritation or sensitization in animal models, and non-mutagenic properties. These findings highlight AMHA as a promising PRI with broad-spectrum efficacy, rapid action, high potency, and environmental compatibility.

低温胁迫是限制温带和亚热带地区作物生产力的主要因素。2-氨基-3-甲基己酸（AMHA）是一种新型的天然植物抗性诱导剂（PRI），具有显著的减轻lt诱导的生理损伤的潜力。本研究评估了AMHA在田间条件下提高辣椒、番茄、草莓、卷心菜和茶五种主要园艺作物耐寒性的效果。与常规PRIs、油菜素内酯（BR）和海藻酸寡糖（AOS）相比，AMHA即使在低剂量（8.7 ~ 65.3 mg ha−1）下也能通过刺激根和茎的生长而显著增强幼苗活力。这种改良不仅提高了耐低温性，而且促进了营养生长、生殖潜能，最终提高了总产量和果实品质。值得注意的是，AMHA在促进抗寒性方面始终优于BR和AOS，在这些分类多样化的作物中表现出较高的功效。毒理学评估证实了其良好的安全性，在动物模型中具有最小的非靶毒性，无可观察到的刺激或致敏性，并且具有非致突变性。这些发现突出了AMHA作为一种具有广谱、快速、高效和环境相容性的有前途的PRI。

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引用次数: 0

Grafting onto thermotolerant hybrid rootstocks enhances heat stress tolerance in sweet pepper 嫁接到耐热杂交砧木上提高甜椒耐热性

IF 4.2 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae

Pub Date : 2026-02-01 DOI: 10.1016/j.scienta.2026.114679

Ramón Gisbert-Mullor , Carmen Ibarra-Galbis , Salvador López-Galarza , Ángeles Calatayud , Yaiza Gara Padilla

High temperatures significantly limit sweet pepper (Capsicum annuum L.) production, particularly in mediterranean greenhouse systems. This study evaluated the physiological, productive, and fruit quality responses of a commercial sweet pepper variety grafted onto three hybrid rootstocks (H211, NIBER® and TERMABER®) under thermal stress (38/22 °C day/night) and control conditions (28/22 °C). The results showed that grafting onto thermotolerant rootstock, TERMABER®, enhanced plant performance under high temperatures by increasing marketable yield through reducing blossom-end rot (BER) incidence compared to non-grafted plants. Grafted plants exhibited higher phenolic compound accumulation, and lower electrolyte leakage, contributing to thermal stress tolerance. Respect to fruit quality parameters, °Brix and titratable acidity were not negatively affected by thermal stress, and nutraceutical antioxidant compounds (ascorbic acid and lycopene) were significantly enriched in the fruits of grafted plants. These findings support grafting onto thermotolerant rootstocks as a viable strategy to improve sweet pepper heat tolerance and maintain yield and fruit quality under rising temperatures.

高温显著限制甜椒（Capsicum annuum L.）的生产，特别是在地中海温室系统中。本研究评估了3个杂交砧木（H211、NIBER®和TERMABER®）嫁接商品甜椒品种在温度胁迫（38/22°C昼夜）和对照条件（28/22°C）下的生理、产量和果实品质响应。结果表明，与未嫁接植株相比，嫁接到耐热砧木TERMABER®上，通过降低花端腐病（BER）发生率，提高了可销售产量，从而提高了植株在高温下的性能。嫁接植株表现出较高的酚类化合物积累和较低的电解质泄漏，有利于耐热性。在果实品质参数方面，温度胁迫对白利度和可滴定酸度没有负面影响，抗坏血酸和番茄红素等营养抗氧化物质在嫁接植株果实中显著富集。这些发现支持了在高温条件下，嫁接到耐热砧木上是提高甜椒耐热性、保持产量和果实品质的可行策略。

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引用次数: 0

Mycelial physiological maturation of Lentinula edodes associated with a potential interaction network of reactive oxygen species, amino acids and carbon flux 香菇菌丝的生理成熟与活性氧、氨基酸和碳通量的潜在相互作用网络有关

IF 4.2 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae

Pub Date : 2026-02-01 DOI: 10.1016/j.scienta.2026.114682

Xiaoxia Song , Yujia Chen , Meiyan Zhang , Dan Zhang , Yu Li , Yansha Wu , Yang Xiao , Xiaodong Shang , Chunyan Song , Qi Tan

Mycelial physiological maturation during the browning stage is poorly understood process and is crucial for vegetative and reproductive transitions in Lentinula edodes cultivation. To elucidate the underlying molecular events, dynamic changes in browning and fruiting characteristics, along with comprehensive transcriptomic and metabolomic profiles, were investigated across eight culturing times of KS11. D95, characterized by a 100 % fruiting rate, high yield, and well-formed fruiting bodies, was identified as the optimal time for KS11 mycelial maturation. Multi-omics analyses revealed temporally coordinated dynamics among reactive oxygen species (ROS) metabolism, amino acid homeostasis, and carbon flux. Based on these correlations, we propose an integrative working model wherein ROS dynamics may act as a signaling hub, amino acid metabolism could serve as a signal-metabolic interface, and carbon supply is likely channeled into both energy production and dominant storage forms like mannitol. The model provides a testable framework for understanding the transition from mycelial growth to fruiting body development. Furthermore, it implies that targeting key nodes within this network, such as modulating ROS signaling through oxygen supply or influencing carbon/nitrogen flux via substrate formulation, could provide practical levers to optimize maturation timing and overall production efficiency.

褐变阶段的菌丝生理成熟是香菇栽培中营养和生殖过渡的关键。为了阐明潜在的分子事件，研究了KS11在8次培养期间褐变和结实特性的动态变化，以及综合的转录组学和代谢组学特征。结果表明，D95是KS11菌丝体成熟的最佳时机，具有100%结实率、产量高、子实体结构完善等特点。多组学分析揭示了活性氧（ROS）代谢、氨基酸稳态和碳通量之间的时间协调动力学。基于这些相关性，我们提出了一个综合的工作模型，其中ROS动力学可能作为信号中枢，氨基酸代谢可以作为信号代谢接口，碳供应可能被引导到能量生产和甘露醇等主要储存形式。该模型为理解从菌丝生长到子实体发育的过渡提供了一个可测试的框架。此外，这意味着针对该网络中的关键节点，如通过氧气供应调节ROS信号或通过底物配方影响碳/氮通量，可以为优化成熟时间和整体生产效率提供实用的杠杆。

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引用次数: 0

Morpho-physiological and phytochemical responses of three Thymus species with different drought resistance 三种不同抗旱性胸腺草的形态生理和植物化学响应

IF 4.2 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae

Pub Date : 2026-02-01 DOI: 10.1016/j.scienta.2026.114625

Maryam Alipour, Maryam Haghighi, Mehdi Rahimmalek

Drought stress is one of the major environmental constraints on the productivity and quality of aromatic and medicinal plants. The purpose of this study was to compare the morphological, physiological, biochemical, and phenolic responses of three Thymus species (T. serpyllum, T. vulgaris, and T. kotschyanus) to different irrigation regimes: 100%, 70%, and 40% of field capacity. The results revealed species-specific differences in drought tolerance. T. kotschyanus exhibited the highest drought resistance, maintaining greater relative water content and biomass under stress, while T. serpyllum showed the most significant decreases. Proline accumulation increased linearly with drought severity in all species, indicating osmotic adjustment under drought stress. T. vulgaris had lower chlorophyll and carotenoid contents, whereas T. kotschyanus had higher levels under severe drought. Total phenolic and flavonoid contents increased significantly in all species. T. kotschyanus had the highest essential oil percentage under severe drought, indicating the potential for drought-adapted essential oil production. HPLC profiling identified rosmarinic acid as the dominant phenolic compound, particularly in T. kotschyanus, where its content increased by 47% under stress. Overall, the findings show that Thymus species have distinct adaptive mechanisms, with T. kotschyanus exhibiting superior drought tolerance and phytochemical resilience, making it a promising candidate for cultivation in arid and semi-arid regions.

干旱胁迫是影响芳香和药用植物产量和品质的主要环境因素之一。本研究的目的是比较三种胸腺（T. serpyllum， T. vulgaris和T. kotschyanus）对100%、70%和40%农田灌溉能力的形态、生理、生化和酚类反应。结果显示，不同物种的耐旱性存在差异。干旱胁迫下，黄颡鱼（T. kotschyanus）表现出最高的抗旱性，相对含水量和生物量在逆境下保持较高的水平，而丝虫草（T. serpyllum）的抗旱性下降最为显著。脯氨酸积累量随干旱严重程度线性增加，表明干旱胁迫下渗透调节。在严重干旱条件下，柽柳叶绿素和类胡萝卜素含量较低，而柽柳叶绿素和类胡萝卜素含量较高。总酚和类黄酮含量均显著增加。在严重干旱条件下，黄颡鱼挥发油含量最高，表明黄颡鱼具有适应干旱的挥发油生产潜力。高效液相色谱法鉴定迷迭香酸是主要的酚类化合物，特别是在黄颡鱼中，其含量在胁迫下增加了47%。综上所述，研究结果表明，胸腺属植物具有不同的适应机制，其中胸腺属植物具有较强的抗旱性和植物化学恢复能力，是干旱和半干旱地区种植胸腺属植物的理想选择。

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引用次数: 0

Chitosan enhances saline-alkali tolerance in apple rootstock ‘Qingzhen 1’ through regulation of antioxidant defense and ion-hormone homeostasis 壳聚糖通过调节抗氧化防御和离子激素稳态，增强苹果砧木‘清镇1号’的耐盐碱能力

IF 4.2 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae

Pub Date : 2026-02-01 DOI: 10.1016/j.scienta.2026.114668

Wenbo Li , Xulin Xian , Zhongxing Zhang , Yanlong Gao , Yongxin Gao , Yanxiu Wang , Xueyi Luo

Soil salinization severely hinder efficient apple cultivation and the sustainable development of the fruit industry, by causing ion toxicity, osmotic imbalance, excessive accumulation of reactive oxygen species (ROS), and hormonal dysregulation. The saline-alkali (SA) tolerance of rootstocks plays a critical role in determining the overall stress resistance of grafted apple trees. In this study, the apple rootstock ‘Qingzhen 1’ was selected as the experimental material. A preliminary experiment determined that 200 mg·L⁻¹ chitosan (CTS) was optimal concentration, and four treatments were subsequently established under saline-alkali (SA) stress conditions (NaHCO₃ : NaCl = 1:1, 300 mmol·L⁻¹): CK, CTS, SA, and SA + CTS. The results showed that CTS markedly alleviated leaf chlorosis and wilting, preserved mesophyll and stomatal structure, and enhanced chlorophyll content and PSII activity, thereby improving photosynthetic efficiency. CTS also decreased ROS and malondialdehyde (MDA) accumulation, enhanced the activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), and strengthened the AsA-GSH cycle. Furthermore, CTS promoted Na⁺ efflux and K⁺ uptake to sustain Na⁺/K⁺ homeostasis, and regulated IAA, GA as well as ZE levels to optimize hormonal equilibrium. Notably, CTS markedly activated the melatonin (MT) biosynthetic pathway by upregulating key enzyme genes (MdTDC1, MdT5H4, MdAANAT2, and MdASMT1/HIOMT), thereby promoting MT accumulation and reinforcing ROS scavenging and hormone-melatonin crosstalk. In summary, exogenous CTS enhances the SA tolerance of ‘Qingzhen 1’ through a multi-target synergistic regulatory network centered on the MT pathway, integrating photosynthetic, antioxidant, ionic, and hormonal processes. This study provides a theoretical foundation for improving the stress resilience of apple rootstocks and facilitates sustainable apple cultivation in SA soils.

土壤盐渍化通过引起离子毒性、渗透失衡、活性氧（ROS）过度积累和激素失调等，严重阻碍苹果高效栽培和果业的可持续发展。砧木的耐盐碱性是决定嫁接苹果树整体抗逆性的关键因素。本研究以苹果砧木‘青镇1号’为试验材料。初步确定200 mg·L−1壳聚糖（CTS）为最佳浓度，并在NaCl = 1:1, 300 mmol·L−1的盐碱胁迫条件下建立了4种处理：CK、CTS、SA和SA + CTS。结果表明，CTS显著缓解了叶片的黄萎病，保存了叶肉和气孔结构，提高了叶绿素含量和PSII活性，从而提高了光合效率。CTS还能降低ROS和丙二醛（MDA）的积累，提高超氧化物歧化酶（SOD）、过氧化物酶（POD）和过氧化氢酶（CAT）的活性，增强AsA-GSH循环。CTS促进Na +外排和K +摄取，维持Na + /K +的体内平衡，调节IAA、GA和ZE水平，优化激素平衡。值得注意的是，CTS通过上调关键酶基因MdTDC1、MdT5H4、MdAANAT2和MdASMT1/HIOMT，显著激活褪黑素（MT）生物合成途径，从而促进MT积累，增强ROS清除和激素-褪黑素串扰。综上所述，外源CTS通过以MT途径为中心的多靶点协同调节网络，整合了光合、抗氧化、离子和激素过程，增强了‘清镇1号’的SA耐受性。本研究为提高苹果砧木的抗逆性提供了理论依据，促进了南缘土壤中苹果的可持续栽培。

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引用次数: 0

Corrigendum to “Aluminum stress alters leaf physiology and endophytic bacterial communities in ginseng (Panax ginseng Meyer)” [Scientia Horticulturae, Volume 350, August 2025, 114276] “铝胁迫改变人参（Panax ginseng Meyer）的叶片生理和内生细菌群落”的勘误[科学园艺，卷350，August 2025, 114276]

IF 4.3 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae

Pub Date : 2026-01-25 DOI: 10.1016/j.scienta.2026.114636

Chijia Liang, Fan Zhou, Guanzhong Ding, Peng Mu, Yue Zhang, Ning Liu

引用次数: 0

Gallic acid as a phytostimulant enhances the yield and fruit nutrient profile of greenhouse-grown cucumber under mulching, deficit- and well-watered conditions 没食子酸作为一种植物兴奋剂，在覆盖、亏缺和水分充足的条件下提高了温室黄瓜的产量和果实营养成分

IF 4.2 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae

Pub Date : 2026-01-24 DOI: 10.1016/j.scienta.2025.114479

Fahad Kimera , Muziri Mugwanya , Hani Sewilam

Water stress is a major factor hindering horticulture production in marginal areas. Applying phytostimulants combined with deficit drip irrigation and mulching could present benefits to improve the yield and quality of cultivated crops. This study investigated the impact of foliar application of different concentrations of gallic acid (T1: control [deionized water], T2: 100 µM, T3: 200 µM, T4: 300 µM, T5: 400 µM, and T6: 500 µM) to mulched and non-mulched cucumber crops under deficit (50 % field capacity [FC]) and well-watered (100 % FC) conditions. The study results indicated that severe water stress (50 % FC) negatively impacted the plant heights, leaf area, leaf area index, chlorophyll content (SPAD), and yield of cucumber, especially under the non-mulched treatments. However, mulching significantly improved the fruit yield by 74.59 %, 64.63 %, and 60.88 % in T6, T5, and T4, respectively, compared to T1 at 50 % FC. Nonetheless, deficit drip irrigation improved the water productivity by 54.66 % and 48.88 % in mulched and non-mulched treatments, respectively. For fruit nutrient composition, gallic acid treatments improved the nutrient composition of fruits in deficit and well-watered conditions, irrespective of mulching or non-mulching conditions. Based on these results, this study recommends foliar application of gallic acid at a concentration of 300 µM under mulched and deficit irrigation (50 % FC) conditions due to its superior effect on yield, water productivity, and fruit nutrient composition.

水分胁迫是阻碍边缘地区园艺生产的主要因素。施用植物兴奋剂与亏缺滴灌和覆盖相结合，有利于提高栽培作物的产量和品质。本研究研究了不同浓度的没食子酸（T1：对照[去离子水]、T2: 100µM、T3: 200µM、T4: 300µM、T5: 400µM和T6: 500µM）在亏缺（50%田容量[FC]）和水分充足（100% FC）条件下对覆盖和未覆盖黄瓜作物的影响。研究结果表明，重度水分胁迫（50% FC）对黄瓜株高、叶面积、叶面积指数、叶绿素含量（SPAD）和产量均有显著的负向影响，特别是在不覆盖处理下。但在50% FC条件下，与T1相比，覆盖在T6、T5和T4的产量分别显著提高了74.59%、64.63%和60.88%。亏缺滴灌在覆盖和不覆盖处理下，水分生产力分别提高了54.66%和48.88%。在果实营养成分方面，无论覆盖或不覆盖，没食子酸处理均改善了亏缺和丰水条件下果实的营养成分。基于这些结果，本研究建议在覆盖和亏缺灌溉（50% FC）条件下叶面施用浓度为300µM的没食子酸，因为它对产量、水分生产力和果实营养成分有更好的影响。

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