Cucumber Plants Research Articles

Effects of Magnesium Imbalance on Root Growth and Nutrient Absorption in Different Genotypes of Vegetable Crops.

Magnesium (Mg) plays a crucial role in crop growth, but how Mg supply level affects root growth and nutrient absorption in vegetable crops with different genotypes has not been sufficiently investigated. In this study, the responses of tomato (Solanum lycopersicum L.) and cucumber (Cucumis sativus L.) crops to different levels of Mg supply were explored. Four levels of Mg treatment (i.e., 0.2, 1.0, 2.0, 3.0 mmol/L) were applied under hydroponic conditions, denoted as Mg0.2, Mg1, Mg2, and Mg3, respectively. The results showed that with increasing Mg levels, the plant biomass, root growth, and nutrient accumulation in both vegetable crops all increased until reaching their maximum values under the Mg2 treatment and then decreased. The total biomass per tomato plant of Mg2 treatment was 30.9%, 14.0%, and 14.0% higher than that of Mg0.2, Mg1, and Mg3 treatments, respectively, and greater increases were observed in cucumber plant biomass (by 54.3%, 17.4%, and 19.9%, respectively). Compared with the Mg0.2 treatment, the potassium (K) and calcium (Ca) contents in various plant parts of both crops remarkably decreased under the Mg3 treatment. This change was accompanied by prominently increased Mg contents in various plant parts and para-hydroxybenzoic acid and oxalic acid contents in root exudates. Irrespective of Mg level, plant biomass, root growth, nutrient accumulation, and root exudation of organic acids were all higher in tomato plants than in cucumber plants. Our findings indicate that excessive Mg supply promotes the roots to exude phenolic acids and hinders the plants from absorbing K and Ca in different genotypes of vegetable crops despite no effect on Mg absorption. A nutritional deficiency of Mg stimulates root exudation of organic acids and increases the types of exuded organic acids, which could facilitate plant adaption to Mg stress. In terms of root growth and nutrient absorption, tomato plants outperform cucumber plants under low and medium Mg levels, but the latter crop is more tolerant to Mg excess.

Effect of raw material and application rate of biogas slurry on Cucumber growth, Fusarium wilt suppression, and soil properties

With the popularization and application of biogas engineering, byproduct biogas slurry has excellent application potential as organic liquid fertilizer, while its source and application rate significantly affect its effect. Irrational application of biogas slurry, can reduce crop yields and cause environmental problems such as soil salinization and diffuse source pollution. In this study, the impact of different types of biogas slurry from various materials (i.e., pig manure, chicken manure, vinasse, and kitchen waste) and their required application rates on the growth and incidence of cucumber were investigated by analyzing the dry weight of cucumber, soil chemical properties, soil extracellular enzyme activity, and the incidence of cucumber wilt disease. The results showed that the effects of the four selected types of biogas slurry on cucumber growth and disease were similar. It was shown that 3% was the most suitable application rate considering the dry weight of cucumber plants and the incidence of wilt disease. At this application rate, it was achievable to increase soil pH, soil AN, AK, Olsen P content, and enzyme activities without increasing the risk of salinization. In summary, despite different sources, biogas slurry showed the best growth promotion and disease suppression ability in 3% (v/w) application, without the risk of soil salinization.

The regulation of gross nitrogen transformation rates in greenhouse soil cultivated with cucumber plants under elevated atmospheric [CO2] and increased soil temperature

Climate change scenarios forecast both increase in atmospheric CO2 concentration ([CO2]) and temperature. Elevated [CO2] (e[CO2]) and soil temperature (eST) significantly increased plant growth and nitrogen (N) uptake. However, studies on the combined effect of these factors on soil N transformation and microbial community are scarce in agricultural intensification. In the present work, we cultivated cucumber plants under e[CO2] or/and eST, followed by a paired labeling 15N tracer experiment (15NH4NO3 and NH415NO3) to quantify soil gross N transformation rates. Results showed that e[CO2] decreased soil gross N nitrification rate, indicated by a decline in ammonia-oxidizing bacteria (amoA-AOB) and nitrite oxidoreductase alpha subunit (nxrA) gene copy numbers, and changed microbial taxonomic composition under ambient soil temperature (aST). Furthermore, eST increased chitinase gene (chiA) and amoA-AOB gene copy numbers and alpha diversity and changed the microbial taxonomic composition to improve soil gross N mineralization and nitrification rates. The combination of e[CO2] and eST promoted soil gross N mineralization, nitrification, and immobilization rates compared with ambient [CO2] and aST. The study showed that the combination of e[CO2] and eST increased the primary gross N transformation rates and accelerated soil N circulation, which could ensure plant N demand. Therefore, combining e[CO2] and eST provided a promising way to help cultivators promote vegetable growth in winter, mitigate soil N loss, and achieve sustainable development in greenhouse vegetable cultivation.

Biological control potentials of Chrysoperla zastrowi sillemi (Neuroptera: Chrysopidae) against Bemisia tabaci (Hemiptera: Aleyrodidae) on polyhouse grown parthenocarpic cucumber in North-Western India

The silver leaf whitefly, Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae), stands out as a highly destructive insect in temperate, tropical, and subtropical regions, inflicting extensive damage to agricultural crops worldwide. Its impact resonates in India, where it has emerged as a formidable pest. Moreover, the excessive use of chemically-derived pesticides has led to the emergence of insect-resistant strains, resulting in environmental pollution and endangering human health. The use of natural enemies is a sustainable and environmentally safe alternative management tactic. The predation potential of green lacewing, Chrysoperla zastrowi sillemi Esben-Peterson (Neuroptera: Chrysopidae) on eggs, nymphs and adults of B. tabaci infesting parthenocarpic cucumber grown under polyhouse has been examined here. On cucumber plants, three releases of 2nd instar C. zastrowi sillemi larvae (at one, two and three larvae/plant) were made at 7 days intervals. The release of three larvae/plant resulted in significantly higher predation rate on whitefly population (58.6% on egg, 61.0% on nymph and 32.3% on adult stage of the whitefly) than two or one green lacewing larvae/plant (56.3% on egg, 58.3% on nymph and 30.4% on adult stage of the whitefly & 49.9% on egg, 51.0% on nymph and 24.6% on adult stage of the whitefly, respectively). Significantly higher yields of cucumber were recorded from plots with the release rate of three larvae per plant (2047.9 g/plant). Augmentative biological control of B. tabaci under polyhouse conditions with three weekly releases of 2nd instar C. zastrowi sillemi larvae at three larvae per plant can effectively manage whitefly infestation on parthenocarpic cucumber under polyhouse condition.

Development of a Cucumber Transpiration Model Based on a Simplified Penman-Monteith Model in a Semi-closed Greenhouse

We aimed to develop a more accurate transpiration model for cucumber (Cucumis sativus L.) plants to optimize irrigation and nutrient usage in soilless greenhouse cultivation. Accurate modeling of transpiration in greenhouse-grown cucumbers is crucial for effective cultivation practices. Existing models have limitations that hinder their applicability. Therefore, this research focused on refining the modeling approach to address these limitations. To achieve this, a comprehensive methodology was employed. The actual transpiration rates of three cucumber plants were measured using a load cell, enabling crop fresh weight changes to be calculated. The transpiration model was developed by making specific corrections to the formula derived from the Penman-Monteith equation. In addition, the study investigated the relationship between transpiration rate and solar radiation (Rad) and vapor pressure deficit (VPD), identifying a nonlinear association between these variables. The transpiration model was adjusted to account for these nonlinear relationships and compensate for Rad and VPD. Comparative analysis between the actual and estimated transpiration rates demonstrated that the developed cucumber transpiration model reduced overestimation by 23.69%. Furthermore, the model exhibited higher coefficients of determination and root mean square error (RMSE) values than existing models, suggesting its superior accuracy in predicting transpiration rates. Implementing the transpiration model-based irrigation method demonstrated the potential for ∼21% nutrient savings compared with conventional irrigation practices. This finding highlights the practical applications of the developed model—accounting for a nonlinearity of Rad and VPD—in optimizing irrigation practices for greenhouse cucumber cultivation.

Field Evaluation of some Insect Growth Regulators and Plant Originated Insecticides Against Sucking-Piercing Insects on Cucumber Plant and Their Side Effects on The Associated Predators

Field Evaluation of some Insect Growth Regulators and Plant Originated Insecticides Against Sucking-Piercing Insects on Cucumber Plant and Their Side Effects on The Associated Predators

First Report of Soft Rot Caused by Pectobacterium brasiliense on Cucumber in Korea

Wilted and water-soaked lesion symptoms were observed on cucumbers in greenhouses located in Daejeon, Chungcheongnam-do, Korea, in June 2021. A bacterial strain, designated KNUB-04-21, was isolated from the cucumbers, which was subsequently identified as <i>Pectobacterium brasiliense</i> through a phylogenetic analysis based on sequences of the 16S rRNA region, <i>dnaX, leuS</i>, and <i>recA</i> genes. The biochemical characteristics of KNUB-04-21 were also similar to those of <i>P. brasiliense</i> through investigation using the API ID 32 GN system. The pathogenicity of KNUB-04-21 was confirmed by inoculating it into healthy cucumber plants. The reisolated strains were also found to be same to the original strain. To our knowledge, this is the first report of <i>P. brasiliense</i> being identified as the causative agent of cucumber soft rot in Korea.

Towards anaerobic digestate valorization to recover fertilizer nutrients: Elaboration of technology and profitability analysis

The study aimed to develop a technology for creating granular fertilizers, containing amino acids, based on food waste digestate. Pork hemoglobin (Ntot: 14.9 ± 1.5%, C: 47.2 ± 4.7%) served as an additional source of nitrogen and organic carbon. The proposed method comprises four unit processes: (1) chemical hydrolysis of raw materials with a mixture of sulfuric (VI) acid and phosphoric (V) acid, (2) neutralization with solid potassium hydroxide and correction of the composition with minerals (sulfate salts of copper, manganese, zinc and iron), (3) granulation with a mixture of biomass combustion, potato starch and peat, and (4) drying the granules. The prepared formulation meets the requirements of European Parliament Regulation 2019/1009 and is classified as PFC 1(B)(I): solid organo-mineral fertilizer (N: 4.49 ± 0.45%, C: 35.0 ± 3.50%, P2O5: 2.83 ± 0.57%, K2O: 4.78 ± 0.96%). The forms of nutrients were determined in accordance with current PN-EN standards. The effect of amino acid fertilizer on cucumber plants (Cucumis sativus, W. Legutko) was studied in 10-day germination tests under normal, salinity and drought conditions. It was noted that a low dose of the preparation under normal conditions had a stimulating effect on root development, while higher supplementation positively affected the aboveground parts of the plants. Under drought conditions, plants accumulated higher amounts of free amino acids, particularly glutamic acid, arginine, glycine, phenylalanine, serine and tryptophan. A significant portion of the study focused on the economic analysis, which included financial calculations for the production of the proposed fertilizer, an evaluation of profitability, and a sensitivity analysis.

Cucurbit chlorotic yellows virus, a crinivirus infecting Cannabis sativa plants

AbstractHigh cannabidiol‐containing plants of Cannabis sativa (high‐CBD) growing in farms in Israel displayed foliar symptoms of interveinal chlorosis and yellowing, brittleness and occasionally necrosis. These symptoms, which were more apparent in older leaves, resembled those caused by the crinivirus lettuce chlorosis virus (LCV). However, this virus was not detected by reverse transcription (RT)‐PCR using specific primer sets. High‐throughput sequencing of viral RNA extracted from symptomatic leaves revealed the presence of cucurbit chlorotic yellows virus (CCYV), a crinivirus in the Closteroviridae family. The complete viral genome sequence was obtained using RT‐PCR followed by Sanger sequencing. The two CCYV RNA genomic segments shared 99.5%–99.85% nucleotide sequence identity with CCYV isolates from the GenBank. The virus was transmitted from symptomatic cannabis leaves to healthy plants of cannabis and Cucumis sativus ‘King Star’ (cucumber) by the whitefly Bemisia tabaci Middle Eastern Asia Minor 1 (MEAM1) species, causing disease symptoms identical to those of the donor plants. Cannabis‐CCYV was also transmitted between infected cucumber plants and cannabis seedlings of unknown genotype. Severe disease symptoms of yellowing and leaf‐edge necrosis were observed on high‐CBD and high Δ9‐tetrahydrocannabinol‐containing (high‐THC) flowering cannabis plants and were associated with mixed infections of LCV and CCYV. To the best of our knowledge, this is the first report of CCYV infecting C. sativa plants.

Synergism of microorganisms and seaweed extract on vegetative growth, yield and quality of cucumber fruit

Natural biostimulants, such as microorganisms and seaweed extracts, are used in agriculture to improve crop yields with a sustainable approach. However, the interaction effects between different biostimulants have not been thoroughly investigated. The objective of this work was to evaluate the synergistic effects of microorganisms (Glomus intraradices and Azospirillum brasilense) and seaweed extract (Ascophyllum nodosum and Macrocytis pyrifera) on growth, yield and fruit quality of cucumber plants under soilless cultivation. Two doses of microorganisms (0 and 10 spores mL-1 + 106 CFU) and four concentrations of seaweed extract (0, 250, 500 and 2500 ppm) were evaluated. The experimental design used was a randomized complete block design with a factorial arrangement (2 x 4), with four replications per treatment. The results showed that the equatorial diameter of the fruit, yield and titratable acidity improve when applying microorganisms and seaweed extract in combination; however, when applying the two biostimulants the values ​​of plant height, stem diameter, number of leaves, root length, biomass (fresh and dry), firmness, total soluble solids, vitamin C, chlorophyll (a and total) and indices of color (L* and b*) did not exceed those obtained when the biostimulants were applied individually. The combined application of microorganisms and seaweed extract improves cucumber yield, but not vegetative growth and, except for titratable acidity, fruit quality attributes.

The influence of the ratio of red and far red on the growth of seedlings of cucumber Cucumis sativus L. variety Courage

Far red light is not included in the range of photosynthetically active radiation, but plays an important role for plants as an informational indicator of the state of the environment. Plants evolved a system of receptors for recording the amount of far red light and a set of responses to changes in the red/far red ratio. This paper describes the results of an experiment on cultivation of cucumber seedlings under different light conditions by the red/far red ratio factor. Significant differences in the length of internodes were revealed in cucumber plants grown under additional illumination with far red compared to the control.

Comprehensive Genomic Analysis and Expression Profile of Hsp70 Gene Family Related to Abiotic and Biotic Stress in Cucumber

Heat shock protein 70 (Hsp70) is a class of HSPs involved in plant growth and development, stress response and regulation. The Hsp70 proteins exist widely in the plant world, but the detail information about Hsp70s is still unclear in cucumber. Based on the available cucumber genome, a total of 12 Hsp70 genes (CsHsp70-1 to CsHsp70-12) were identified in this study, and they were distributed among five out of seven chromosomes. The CsHsp70s were divided into four groups based on a phylogenetic analysis by using protein sequences from cucumber and other plants, and their conserved motifs were relatively conserved. Gene duplication analysis showed that segmental duplication is the main driving force of expansion in cucumber CsHsp70 genes. Promoter analysis of CsHsp70 genes showed that they contained many cis-acting elements involved in hormone and stress responses. Expression analysis by RNA-seq and qRT-PCR indicated that the expression of most CsHsp70 genes was associated with multiple biotic and abiotic stresses in cucumber. This study introduces the characteristics of cucumber CsHsp70 genes and the regulation of their expression levels in various abiotic and biotic stresses, which provided a basis for functional exploration and utilization of CsHsp70 genes in the future.

Comparison of Fungal Genera Isolated from Cucumber Plants and Rhizosphere Soil by Using Various Cultural Media.

Plant endophytic fungi and rhizosphere soil fungi are often reported as biocontrol agents against plant pathogens or with plant growth promotion potential. Four treatments were performed in field and greenhouse experiments where cucumber plants were inoculated with Trichoderma harzianum and Fusarium oxysporum in 2022. The roots, stems and leaves of cucumber plants and their rhizosphere soil were collected twice individually from the field and greenhouse for isolation of cucumber endophytic and rhizosphere soil fungi. All fungal strains were identified through sequence similarity of the ITS1-5.8s-ITS2 rDNA region. The potato dextrose agar (PDA) media yielded the highest number of genera isolated from cucumber plants, rhizosphere soil and both compared to other media. There were no significant differences among the four media for the isolation of all cucumber endophytic fungi. However, in the roots, the number of endophytic fungi isolated by MRBA was significantly higher than that isolated on malt extract agar (MEA), while in the stems, the number of fungi isolated with PDA was significantly higher than that isolated with Martin's rose bengal agar medium (MRBA). PDA had significantly higher isolation efficiency for the rhizosphere soil fungi than MRBA. The 28 fungal genera had high isolation efficiency, and the endophytic Trichoderma strains were significantly more isolated by MEA than those of MRBA. It is suggested that PDA can be used as a basic medium, and different cultural media can be considered for specific fungal genera.

Biocontrol of Rhizoctonia Solani in Cucumber Plants Using Endobacteria: Effects On Disease Severity and Chlorophyll Content

This study aimed to investigate the potential of endobacteria isolated from different parts of cucumber plants (roots, stems, and leaves) to inhibit the growth of the pathogenic fungus Rhizoctonia solani. Molecular identification confirmed the presence of R. solani in cucumber plants displaying symptoms of wilting and yellowing. Laboratory experiments revealed variations in citrate consumption and gram stain results among different endobacterial isolates. In field experiments, treatments involving Bacillus subtilis with Tricozone and Pseudomonas fluorescens with Tricozone demonstrated significant reductions in disease severity and increased chlorophyll content in cucumber plants compared to the pathogen control. Additionally, Acinetobacter baumannii with Hymazole at the first concentration showed superior effects on leaf area. These findings highlight the potential of endobacteria as biocontrol agents against R. solani, with implications for improving cucumber plant health and productivity.

Relative biochemical and physiological docking of cucumber varieties for supporting innate immunity against Podosphaera xanthii

Powdery mildew in cucumber is caused by the Podosphaera xanthii. No strategy for improving disease resistance can be successful in the absence of thorough insights into the physiological and biochemical responses of cucumber plants to powdery mildew. Therefore, a field experiment was executed to evaluate five commercial cucumber varieties (V1: Dynasty, V2: Long green, V3:Desi Kheera, V4:Thamin II, V5:Cucumber 363) for their inherent immunity to powdery mildew. Upon inoculating cucumber plants with Podosphaera xanthii, we noted differential responses among the varieties. Compared to other varieties, V1 and V2 showed higher values (P ≤ 0.05) for chlorophyll-a under control and pathogen-attacked plants respectively. The minimum value of anthocyanin content (−53.73%) was recorded in V3 as compared to other varieties post pathogen infection. All pathogen-infected cucumber varieties showed a considerable (P ≤ 0.05) loss in flavonoid content except V2. The maximum destruction for Phenolics under powdery mildew (179%) were recorded in V4, whereas V1 exhibited maximum phenolic content under control conditions. In pathogen-infected plants, the minimum AsA was recorded in V5 as compared to all other varieties. Pathogen invasion impacted significantly (P ≤ 0.05) the activity of superoxide dismutase (SOD). Besides, cucumber plants after pathogen inoculation resulted in a considerable (P ≤ 0.05) increase of peroxidase (POD) activity in V1 (5.02%), V2 (7.5%), and V3 (11%) in contrast to V4. Our results confirmed that cucumber varieties perform differently, which was brought on by distinct metabolic and physiological modifications that have an impact on growth and development. The changes in different attributes were correlated with cucumber resistance against powdery mildew. The results would help us fully harness the potential of these varieties to trigger disease management initiatives and defense responses.

Study of some biochemical changes of some cultivars of cucumber when infected with the root-knot nematode Meloidogyne sp in southern Iraq.

The study aimed to study some biochemical changes such as peroxidase, polyphenol oxidase, total phenols and proline that occur in cucumber plants when infected with root-knot nematodes. The cultivar Astra showed significant differences in these biochemical indicators compared to the rest of the cultivars, where the peroxidase enzyme increased to 4.423 units/gm fresh weight after 2 days of nematode inoculation and the polyphenol oxidase enzyme increased to 1.418 units/ml in the cultivar Astra after 6 days of nematode inoculation. The total phenols reached 12.12 mg g-1 after 8 days of nematode inoculation, while in proline, it reached 1.55 mg g-1 after 8 days of inoculation. Keyword: Rheumatoid arthritis, Tripartite motif-containing protein 72, Disease activity score 28.

Quantitative Acetylome Analysis of Differentially Modified Proteins in Virulence-Differentiated Fusarium oxysporum f. sp. cucumerinum Isolates during Cucumber Colonization.

Fusarium oxysporum f. sp. cucumerinum (Foc) is a prominent pathogen that adversely affects cucumber (Cucumis sativus) production. In the pathogen's parasitic lifestyle, the pathogenesis and virulence evolution may be regulated by lysine acetylation, as demonstrated in many living organisms. However, its specific function in Foc remains poorly understood. In this study, the acetylome profiles of a mild virulence strain (foc-3b) and its derived virulence-enhanced strain (Ra-4) were analyzed before and post-inoculation on cucumber plants. In total, 10,664 acetylation sites were identified corresponding to 3874 proteins, and 45 conserved acetylation motifs were detected. Through comparison of the acetylomes, numerous differentially lysine-acetylated proteins were enriched in energy metabolism and protein processing processes, indicating the critical role of lysine acetylation during the transition from the saprotrophic lifestyle to the parasitic lifestyle. Comparative acetylome analyses on the two virulence-differentiated strains revealed that several differentially lysine-acetylated proteins were involved in pathways of defense response and energy metabolism. Ra-4 showed enhanced energy metabolism compared to foc-3b. This indicates that robust metabolic activity is required to achieve high virulence and facilitating adaptive evolution. Additionally, faster host responses are supported by an ample energy supply enhancing virulence. Thus, lysine acetylation plays a crucial role in the pathogenesis and virulence evolution of Foc.

Hydrogen sulfide counteract copper induced inhibition of photosynthetic performance through altered proline metabolism and enhanced antioxidants in Cucumis sativus

It has been recently discovered that hydrogen sulfide (H2S) is a gaseous substance responsible for controlling the growth and metabolism of plants. The present study was designed to explore the ameliorative effect of H2S on Cucumis sativus plants under increasing levels of copper. This study revealed that varying concentrations of H2S improved seed germination in a concentration-dependent manner. Furthermore, exogenous application of H2S to copper stressed plants accelerated photosynthetic performance, antioxidant system, proline accumulation, and maintained copper uptake that was reflected in improved growth parameters. In addition to this, H2S also curbed oxidative stress by lowering lipid peroxidation, H2O2 content, and electrolyte leakage. H2S enhanced activities of the antioxidant system, and proline metabolism leading to decontamination of cucumber plants under lethal dose of copper. This work offers an understanding that exogenously sourced H2S could be engaged as a significant biochemical approach in alleviating copper-induced toxicity in cucumber plants.

Influence of magnetic field on the physicochemical properties of water molecule under growing of cucumber plant in an arid region

This study highlights the potential impact of magnetic fields on water quality, which could have implications for plant growth and development. Theoretical estimates of changes in surface tension, pH, and some other properties due to passing water through a magnetic field for a certain period were experimentally validated in this study. Overall, the results revealed changes in the physicochemical properties of water after magnetic field application. In accordance, pH significantly (p < 0.05) increased from 2 to 2.25, from 4 to 4.5, from 6 to 6.45, from 7.3 to 7.8, and from 8 to 8.7 and except at pH10, which decreased from 10 to 9.7. In addition, the model developed in this study indicated that the change of electrical conductivity (EC) decreased from 9 to 6.11 dS m−1 with an increasing number of run flow through the magnetic field. The decline in EC can be described as follows: magnetically treated water contains fine colloidal molecules and electrolytic chemicals that respond to a magnetic field by enhancing their ability for precipitation, resulting in a fall in EC. Moreover, the Hardness values of recirculated water were decreased after magnetic field application. This corroborates the decline of calcium carbonate adhesion and surface tension values as increases in hydrogen bonding between protons and water molecules and changes in the distribution of molecules in magnetized water. As the internal electrical field grew and the hydration shells surrounding the constituent ions weakened, EC decreased. Lastly, by using an electronic microscope, observing the water in regular, such as regular hexagonal tree shape instead of random irregular shapes after magnetic field application, confirming that the magnetic field had a significant effect on the physical properties of water molecules. In conclusion, magnetic behavior may improve water quality, resulting in increased development and plant growth.

Preparation of Salicylic Acid-Functionalized Nanopesticides and Their Applications in Enhancing Salt Stress Resistance.

Soil salinization is one of the global ecological and environmental problems that are tremendously threatening to the sustainable development of agriculture and food supply. In this work, a facile strategy was proposed to enhance the salt stress resistance of plants by preparing salicylic acid (SA)-functionalized mesoporous silica nanocarriers loaded with emamectin benzoate (EB). The obtained nanopesticides demonstrated a particle size of less than 300 nm. As an endogenous plant hormone, the grafting of SA in this nanopesticide system improved the uptake and translocation of pesticides in cucumber plants by 145.06%, and the applications of such nanopesticides enhanced the salt stress resistance of plants. This phenomenon was accounted for by the SA-functionalized nanopesticides increasing the superoxide dismutase and peroxidase activities (640 and 175%, respectively) and reducing the malondialdehyde content (54.10%), correspondingly alleviating the accumulation of reactive oxygen species and cell damage in plants. The above results were also confirmed by Evans blue staining and NBT staining experiments on cucumber leaves. In addition, these nanopesticides exhibited high insecticidal toxicity, and they also demonstrated biosafety toward nontarget organisms due to their sustained release property. Therefore, this work developed a biosafe SA-functionalized nanopesticide system, and these newly developed nanopesticides have potential in the agricultural field for enhancing salt stress resistance of plants.