Garlic Crop Research Articles

Enhancing garlic propagation through functional biopolymer-based propagules coatings: A bio-nanotechnological strategy

Integrating agricultural, chemical, and technological knowledge is crucial for developing bio-nanotechnologies to improve agricultural production. This study explores the innovative use of biopolymeric coatings, based on sodium alginate and sodium alginate + Laponite® (nanoclay), containing biostimulants (tryptophol and thymol) or not, on garlic cloves. These coatings were analyzed using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR-ATR), and scanning electron microscopy (SEM). Greenhouse bioassays showed improvements in garlic shoot plant biomass with both treatments: sodium alginate biopolymer and sodium alginate biopolymer plus Laponite®. In the field experiment, garlic plants treated with sodium alginate, in combination with conventional pesticide treatments, resulted in better quality garlic bulbs, where larger garlics were harvested in this treatment, reducing commercial losses. In tropical garlic crops, obtaining plants with greater initial vigor is essential. Our results highlight the potential of these bio-nanotechnological strategies to enhance garlic propagation, ensuring environmental protection and food security.

Periods of weed interference in garlic crop

Garlic cultivation holds significant importance in Brazil. However, research on garlic crops is currently limited and outdated, highlighting the necessity for new studies, particularly focused on enhancing weed management and optimizing the use of agricultural inputs. This study aimed to assess the extent of yield losses attributed to weed interference and the specific periods during which weed interference impacts garlic crop yields in the state of Santa Catarina, Brazil. The experiments were conducted in Curitibanos, Santa Catarina State, Brazil, during 2019 and 2020, using the garlic cultivars Chonan and Ito, respectively. A randomized block experimental design was employed, consisting of 16 treatment groups with four replications. The design incorporated a 2×8 factorial arrangement, involving two weed management strategies (coexistence and control) and eight crop-weed coexistence periods (0, 15, 30, 45, 60, 90, 120, and 130 days after crop emergence – DAE). The study evaluated the weed community and recorded data on the number of bulbs, bulb diameter, as well as total and commercial bulb yields of garlic crops. The results indicated average losses of 24.3% in total bulb yield and 28.9% in commercial bulb yield. Critical periods for effective weed control were identified as 6 to 126 DAE in 2019, 5 to 126 DAE in 2020 for total yield, 3 to 126 DAE in 2019, and 5 to 126 DAE in 2020 for commercial bulb yield. Consequently, it is imperative to maintain garlic crops weed-free throughout most of their growth cycle.

Classification of Garlic (Allium sativum L.) Crops by Fertilizer Differences Using Ground-Based Hyperspectral Imaging System

In contemporary agriculture, enhancing the efficient production of crops and optimizing resource utilization have become paramount objectives. Garlic growth and quality are influenced by various factors, with fertilizers playing a pivotal role in shaping both aspects. This study aimed to develop classification models for distinguishing garlic fertilizer application differences by employing statistical and machine learning techniques, such as partial least squares (PLS), based on data acquired from a ground-based hyperspectral imaging system in the agricultural sector. The garlic variety chosen for this study was Hongsan, and the fertilizer application plots were segmented into three distinct sections. Data were acquired within the VIS/NIR wavelength range using hyperspectral imaging. Following data acquisition, the standard normal variate (SNV) pre-processing technique was applied to enhance the dataset. To identify the optimal wavelengths, various techniques such as sequential forward selection (SFS), successive projections algorithm (SPA), variable importance in projection (VIP), and interval partial least squares (iPLS) were employed, resulting in the selection of 12 optimal wavelengths. For the fertilizer application difference model, six integrated vegetation indices were chosen for comparison with existing growth indicators. Using the same methodology, the model construction showed accuracies of 90.7% for PLS. Thus, the proposed model suggests that efficient regulation of garlic fertilizer application can be achieved by utilizing statistical and machine learning techniques.

The Economic Profitability of Garlic Cultivation through the Application of the ”De Minimis” Aid Scheme, Estimates for the Year 2024 in Romania

Abstract The culture of Romanian garlic has a high potential from an economic point of view, being in great demand on the market, Romanians preferring its taste and aroma. However, ..garlic cultivation does not have an easy technology and the Romanian seed is hard to find, so many of the producers are discouraged and prefer to cultivate other, safer crops. Massive imports of garlic led to measures from the state. Underscoring the importance of garlic cultivation for the Romanian economy, the state met agricultural producers with a “de minimis” support to support garlic production. The present paper, in order to contribute to making the necessary decisions for the future production cycle as well as to support farmers who want to cultivate this crop, analyzes the economic efficiency with the help of profitability indicators (profit, profitability rates, breackeven point, etc.), for two possible situations: with financial support granted through the Garlic Production Support Program and without taking into account this “de minimis” support. In this context, it is aimed to evaluate the economic viability in terms of the use of the production framework technology of garlic culture and the rational use of both the raw materials used and the human and financial resources to produce garlic of high quality but at low costs. Agricultural activities are always determined by the profitability of the crop. The findings of the study can have a positive impact on farmers, allowing them to adjust their material resources and current farm capacities for higher productivity, while highlighting the importance of implementing the garlic crop support program.

Phytosanitary problems in elephant garlic (Allium ampeloprasum var. holmense) in the “Val di Chiana” area (Central Italy), and evaluation of potential control strategies

Allium ampeloprasum var. holmense (elephant garlic) is traditionally cultivated in “Val di Chiana”, an area between Umbria and Tuscany regions of Central Italy, under the name “Aglione della Valdichiana”. This product has recently increased in importance, becoming a key economic resource for local farmers. In 2019, phytosanitary problems of elephant garlic cloves ready for transplanting emerged in this cultivation area. Symptom/sign observations and fungal isolations were performed for cloves divided into four components (tunic, basal plate, reserve tissue and shoot) from six farms in the “Val di Chiana” area. Isolates obtained were identified, using partial β-tubulin (BenA) and calmodulin (CaM) or translation elongation factor 1α (tef1α) genes sequences, as belonging to Penicillium [P. allii (95%), P. citrinum (4%), P. brevicompactum (1%)] or Fusarium [F. oxysporum (81%), F. proliferatum (19%)]. Fusarium spp. were mainly associated with clove tunics and basal plates, while Penicillium spp. with basal plates, reserve tissues and shoots. Fungi often also developed from asymptomatic components, but a correlation was found between isolated pathogens and disease symptoms. Pathogenicity and virulence towards elephant garlic cloves were verified for a representative isolate of each identified species, and Penicillium allii was the most virulent. Strategies to control Fusarium and Penicillium spp. on cloves were assessed, including chemicals, a biocontrol agent, surface sterilization and heat treatment. Among these, treatments with Patriot Gold® (active ingredient [a.i.] Trichoderma asperellum TV1, approved in organic farming on crops similar to elephant garlic), or Signum® (a.i. boscalid + pyraclostrobin, approved for Integrated Pest Management systems on crops similar to elephant garlic), were effective in simultaneous reduction of Penicillium spp. and Fusarium spp. Transplanting of asymptomatic cloves combined with the use of the above treatments showed promising effects for pathogens control, and to assist elephant garlic crop establishment.

Garlic Crops’ Mapping and Change Analysis in the Erhai Lake Basin Based on Google Earth Engine

Garlic (Allium sativum) is an important economic crop in China. In terms of using remote sensing technology to identify it, there is still room for improvement, and the high-precision classification of garlic has become an important issue. However, to the best of our knowledge, few studies have focused on garlic area mapping. Here, we propose a method for identifying garlic crops using samples and a multi-feature dataset under limited conditions. The results indicate the following: (1) In the land-use classification of the Erhai Lake Basin, the importance ranking of the characteristic bands, from high to low, is as follows: spectral features, vegetation features, texture features, and terrain features. (2) The random forest method based on feature selection demonstrates high accuracy in land-use classification within the Erhai Lake Basin in Yunnan Province. The overall classification accuracy reached 95.79%, with a Kappa coefficient of 0.95. (3) From 1999 to 2023, the expansion of garlic cultivation in the Erhai Lake Basin showed a trend of initially strengthening from north to south, which was followed by weakening. The vertical development of garlic cultivation reached saturation, showing a slow trend toward horizontal expansion between 2005 and 2018. The planting distributions in various townships in the Erhai Lake Basin gradually shifted from relatively uniform distributions to upstream development. This study utilized the Google Earth Engine (GEE) cloud computing platform and machine learning algorithms to compensate for the lack of statistical data on garlic cultivation in the Erhai Lake Basin. Moreover, it accurately, rapidly, and efficiently extracted planting information, demonstrating significant potential for practical applications.

Efficiency of biological products and mineral fertilizers application on winter garlic crops in the conditions of the Right-Bank Forest-Steppe of Ukraine

The article presents the results of three years of research on the effectiveness of the influence of the biological product Phytohelp, mineral fertiliser Drip Fert N15P5K30+МЕ and bioadhesive Liposam on the structure of the winter garlic yield of the Lyubasha variety under drip irrigation. The relevance of the research is due to the search for new approaches to the development of technological methods for growing winter garlic, taking into account the specific conditions of unstable moisture in the Forest-Steppe. The purpose of the article is to establish the optimal doses and the ratio between them to achieve an increase in the quality and yield of winter garlic. The study was conducted on the experimental field of the Department of Vegetable Growing of the National Assessed Contribution of Ukraine of the Uman National University of Horticulture on podzolised heavy loamy black soil in 2017-2019. As a result, it was proved that in the conditions of the Right-Bank Forest-Steppe of Ukraine on podzolic chernozem under drip irrigation, a higher yield was obtained in plots with the combined use of the biological product Phytohelp at a rate of 1-2 l/ha, mineral fertiliser Drip Fert N15P5K30+МЕ and bioadhesive Liposam at a rate of 1 l/ha. This resulted in an increase of 9.0-10.6 t/ha compared to the control variant, respectively. Using the biopreparation Phytohelp and bioadhesive Liposam at a rate of 2/1 and 1/1 l/ha, a yield of 16.6-17.1 t/ha was obtained, where the increase to the control was 7.7-8.2 t/ha. The effect of foliar fertilisation with Drip Fert N15P5K30+ME (4 g/2 l of water or 0.5 c/ha) on the yield of winter garlic was determined. The increase to the control was 1.6%. The results of this study may be useful for agricultural enterprises and farmers who grow garlic and other crops

Evaluation of non-chemical methods in the management of garlic mite complex

Mites are noxious pests infesting the garlic crop leading to significant yield loss. Several synthetic chemicals have been used over several decades; however, the extensive use of the chemicals has deleterious effects on both human health and the environment. Hence, a field experiment was conducted at the College of Horticulture, Bidar to evaluate the different non-chemical traditional methods against the garlic mite complex during 2020-21. Among the different treatments, sequential water spray –NSKE 5% at an interval of 24 hrs registered the lowest mean carmine spider mite population after the first spray (16.57/sq. cm of leaf) and second spray (15.82/ sq. cm of leaf). Further, it also recorded the highest mite population reduction over control to an extent of 64.90% and 65.98%, after the first and second spray, respectively. The sequential water spray -Pongamia seed extract 3% was next best with 61.99 and 63.01 percent reduction over control after the first and second spray, respectively. Similar results were obtained during 2021-22. The sequential water spray – NSKE 5% also proved to be best against bulb mites as it recorded the lowest lacerations on the garlic cloves (25.36 and 27.15%) with the highest reduction in laceration (51.57 and 51.21%) and the highest yield (27.00q/ha and 25.80q/ha) during 2020-21 and 2021- 22, respectively.

Pathogen Eradication in Garlic in the Phytobiome Context: Should We Aim for Complete Cleaning?

Global food production is challenged by plant pathogens that cause significant crop losses. Fungi, bacteria, and viruses have long threatened sustainable and profitable agriculture. The danger is even higher in vegetatively propagated horticultural crops, such as garlic. Currently, quarantine, rouging infected plants, and control of natural vectors are used as the main means of disease and pest control in garlic crops. Agricultural biotechnology, meristem-tip culture, and cryotherapy offer solutions for virus eradication and for the multiplication of 'clean stocks', but at the same time, impact the symbiotic and beneficial components of the garlic microbiome. Our research involves the first metatranscriptomic analysis of the microbiome of garlic bulb tissue, PCR analyses, and a biological assay of endophytes and pathogens. We have demonstrated that in vitro sanitation methods, such as shoot tip culture or cryotherapy can alter the garlic microbiome. Shoot tip culture proved ineffective in virus elimination, but reduced bacterial load and eliminated fungal infections. Conversely, cryotherapy was efficient in virus eradication but demolished other components of the garlic microbiome. Garlic plants sanitized by cryotherapy exhibited a lower survival rate, and a longer in vitro regeneration period. The question arises whether total eradication of viruses, at the expense of other microflora, is necessary, or if a partial reduction in the pathogenic load would suffice for sanitized garlic production. We explore this question from both scientific and commercial perspectives.

Microbial consortia as an option for biocontrol of Stromatinia cepivora

Stromatinia cepivora, the causal agent of white rot, is responsible for 60–80% of economic losses in onion and garlic crops. This work aimed to select biological control agents (BCAs) to control white rot. Ten microorganisms were tested for hyperparasitic activity on S. cepivora sclerotia in garlic (Allium sativum). Bioassays consisted of pots filled with sterile soil and 50 sclerotia in a plastic tulle bag. Four microorganisms were selected to compare their capability for degrade sclerotia on garlic. Our results showed that increasing degradation happened when Th034, Th035, Th003, and Bs006 were added to the pots containing garlic. Subsequently, three application techniques (seeds, seedlings at transplant, and seeds and transplant) were evaluated. Seven BCAs applied singly and in mixtures were evaluated in semi-field experiments for their ability to reduce white rot symptoms in onion plants in soil inoculated with 300 sclerotia per kilogram. The results indicated that efficacy was dependent on microrganism, mixture, and technique of application. The synergy factor showed that only two treatments have synergistic effects. In both cases, the mixture consisted of a strain of Bacillus and two species of Trichoderma (T. koningiopsis, T. atroviride) applied twice. In most cases, antagonistic interactions among BCAs were observed.

Occurrence and molecular characterization of Potyvirus present in the garlic crop in the Mediterranean ecosystem of the central valley of Chile

Occurrence and molecular characterization of Potyvirus present in the garlic crop in the Mediterranean ecosystem of the central valley of Chile

Deprivation of Sexual Reproduction during Garlic Domestication and Crop Evolution

Garlic, originating in the mountains of Central Asia, has undergone domestication and subsequent widespread introduction to diverse regions. Human selection for adaptation to various climates has resulted in the development of numerous garlic varieties, each characterized by specific morphological and physiological traits. However, this process has led to a loss of fertility and seed production in garlic crops. In this study, we conducted morpho-physiological and transcriptome analyses, along with whole-genome resequencing of 41 garlic accessions from different regions, in order to assess the variations in reproductive traits among garlic populations. Our findings indicate that the evolution of garlic crops was associated with mutations in genes related to vernalization and the circadian clock. The decline in sexual reproduction is not solely attributed to a few mutations in specific genes, but is correlated with extensive alterations in the genetic regulation of the annual cycle, stress adaptations, and environmental requirements. The regulation of flowering ability, stress response, and metabolism occurs at both the genetic and transcriptional levels. We conclude that the migration and evolution of garlic crops involve substantial and diverse changes across the entire genome landscape. The construction of a garlic pan-genome, encompassing genetic diversity from various garlic populations, will provide further insights for research into and the improvement of garlic crops.

Influence of inorganic fertilizers with biofertilizers on biochemical components, growth and yield of garlic under subtropical irrigated condition

Garlic (Allium sativum L.) is an economically important vegetable crop which is used worldwide for culinary and medicinal purposes. The extensive use of inorganic fertilizers poses serious collateral problems such as environmental pollution, pest resistance development and food safety decline. Thus present study was conducted to investigate the effects of various application rate of inorganic fertilizers (100% NPK, 75% NPK and 50% NPK) and biofertilizers (consortium I and consortium II) on garlic yield and soil health. Results revealed that supplementation of 75% NPK along with biofertilizers gave the higher yield, biochemical components and soil parameters than 100% NPK application. Moreover, nutrient contents (nitrogen, phosphorus and potassium) of garlic leaves and bulbs increased by combined inoculation of different combinations of NPK along with biofertilizers. Integrated application of inorganic fertilizers along with biofertilizers improved soil’s physico-chemical (pH and organic carbon) and biological (dehydrogenase activity) properties. Therefore, it can be concluded that integrated utilization of these biofertilizers along with 75% NPK improves soil health and it also offers the scope of reducing the application of inorganic fertilizers to garlic crop by 25% without any loss in bulb yield.

Evaluating the Influence of Water Scarcity on the Host Response of Garlic to the Stem and Bulb Nematode Ditylenchus dipsaci.

Ditylenchus dipsaci is a plant-parasitic nematode with a great economic impact on bulbous crops, including garlic (Allium sativum L.), and is distributed worldwide, particularly in the Mediterranean region. Traditionally, garlic was a rainfed crop in Spain, but irrigated areas have increased during the last few decades. However, the expected climatic conditions, with longer and more intense droughts, will make it necessary to reduce the water supply to garlic crops. This poses the urgent need to select garlic cultivars more tolerant to water scarcity and that are also more resistant to plant pathogenic organisms. The aim of this work was to analyze the influence of water stress on the host response of garlic plants to D. dipsaci. The specific objectives were to evaluate the level of nematode infestation in plants from four garlic genotypes treated with a reduced irrigation regime and compare them with those of control plants not subjected to water stress. The observed results were correlated with changes in the bulb and root development, as well as in the physiological parameters (total chlorophyll concentration and proline accumulation). The effects were different depending on whether the plants were subjected to water stress before or after nematode inoculation, as well as whether the water stress was continuous or discontinuous. Garlic inter-cultivar variability also affected the obtained results.

Effect of the tillage system on the floristic composition and the emergence of weeds in Allium sativum

In fragile environments, no-tillage (0T) instead of conventional tillage (CT) is desirable to prevent agroecosystem degradation, but there is little information on its implementation in horticulture. This study aimed to investigate the effects of replacing CT with 0T on floristic composition and weed emergence dynamics in a garlic crop, under the hypothesis that the implementation of a 0T system alters the weed community during the initial stage of the transition. Two experiments were carried out following a randomized complete block design with two treatments (garlic crop grown under 0T and CT). In two subsampling per plot, biweekly destructive weed surveys were carried out. Although both tillage systems presented a similar diversity between systems, these weed communities varied by 36% in their species identity, and it was recorded a higher total weed density under CT (P>0.05). Under 0T, anemophilous Asteraceae, such as Conyza bonariensis and Sonchus oleraceus, tended to increase their presence. Under CT, there was a greater amount of indehiscent fruiting Brassicaceae such as Raphanus sativus and Rapistrum rugosum. The implementation of Vicia villosa as a predecessor crop led to many births due to its capacity for natural reseeding. It is concluded that there are important changes in the species composition and weed emergence patterns immediately after the implementation of 0T compared to CT, suggesting that the filtering pressures exerted by each tillage system favor certain weed species over others. By understanding weed community shifts and critical stages of weed emergence, farmers can improve herbicide application, thereby reducing the excessive use of chemicals and minimizing environmental impact. In addition, this information can help to schedule labor and machinery more efficiently, saving time and production costs.

DETERMINANTS TO DISCONTINUE GARLIC CULTIVATION

India is the land of spices and garlic is an essential ingredient of Indian cuisine. The farmers of some areas in middle Gujarat are leaving the cultivation of garlic crop. Considering this fact, this study was conducted in Lunawada and Santarampur talukas of the Mahisagar district. A total of 100 farmers from 10 villages were selected to identify the factors experienced by them for discontinuing garlic cultivation by employing Ex-Post-Facto research design. It is observed that ‘r’ computed between factors to discontinuing garlic cultivation and age (0.347), farming experience (0.279) and years left garlic cultivation (0.399) were found to be highly significant at 0.01 level. The ‘r’ value computed for education (0.207) and landholding (0.221) were found to be significant at 0.05 levels. The information on personal, social, economic, psychological, market-related, labour-related, and situational factors experienced by farmers’ respondents is analyzed to have in-depth knowledge of each factor. The analyzed suggestions will help to promote the farmers to cultivate garlic crop. The solution to the problems is not in a few packages but in significant changes in the present policies related to garlic cultivation that need to be focused on.

Current status and distribution of major RNA viruses infecting onion and garlic crops in Punjab, Pakistan

Onion (Allium cepa L.) and garlic (Allium sativum L.) are significant bulbous vegetables well known for their kitchen and medicinal values across the globe including Pakistan. Allium crops are highly vulnerable to many notorious RNA viruses fit in different genera viz., Allexivirus, Potyvirus, Tospovirus and Carlavirus. These viruses are known to inflict colossal and havoc yield losses up to 50% in allium crops wherever they grown. The occurrence of allium viruses in Pakistan has already been reported, but in single crop and only a few studies describe their incidence and distribution. The study examined the current scenario and distribution of major RNA viruses infecting Allium crops in Punjab, Pakistan. Field surveys were carried out in 14 districts of Punjab province as well as capital territory Islamabad of Pakistan, for two consecutive growing seasons (2019 and 2020). The 3000 leaf samples collected, 1675 samples (Onion 791, Garlic 884) were found positive for RNA viruses by using specie specific DAS-ELISA and further confirmed through reverse transcriptase polymerase chain reaction (RT-PCR). The results revealed the presence of RNA viruses with overall disease incidence of 52.7% and the highest disease incidence was observed as Onion yellow dwarf virus (OYDV) 58% following Irish yellow spot virus (IYSV) 41.8% respectively in onion crop during 2019-2020. Similarly, in garlic crop overall disease incidence of RNA viruses was noticed as 58.9% and the highest disease incidence of OYDV was observed as 45%, following IYSV 32.4% and GarV-C 22.5% respectively during 2019-2020. Comparatively, disease incidence and geographical distribution of viruses was variable in surveyed regions of both crops during surveyed period, whereas OYDV and IYSV were most prevalent viruses infecting onion and garlic crops and GarV-C found only in garlic. The current study also concluded the importance to disseminate the information/awareness among the farmers regarding viral diseases and their management by using different strategies including use of resistant genotypes. Keywords: Allium crops; RNA viruses; ELISA; RT-PCR; Disease incidence; Virus distribution

Analysis of rural–urban vegetable market dynamics in Central Gondar Zone, Ethiopia

BackgroundVegetable crops are among most perishable agricultural products which require efficient marketing system to reach them fresh to consumers. Weak market integration and sluggish price transmission of such perishable products can lead to suboptimal allocation of resources. This study was aimed to identify the degree of vegetable price integration and speed of price transmission between urban and rural vegetable markets.MethodsTwo rural markets (Maksegnit and Koladiba) and one central urban market (Gondar) were selected for the purpose of the analysis based on their strong relationship as supply and destination market for vegetable crops. Price data of vegetable crops were collected from September 2013 to December 2018 from each market areas trade and revenue department offices. Augmented Dickey-Fuller test, Granger causality test and error correction model were utilized in the process of the analysis.ResultsThe result shows that both rural markets were integrated with urban market for garlic crop. In addition, the rural markets caused the urban market to change not in the reverse direction. Moreover, urban market is adjusted by about 30% per month when there were a 1% price shock in rural markets for garlic crop. This speed of price transmission is sluggish for perishable crops and seasonally flexible prices.ConclusionThis study concluded that vegetable prices are determined from demand side and it should be the target for any planned policy modification.

Large-scale fate profiling of butralin between cultivated and processed garlics for multi-risk estimations

Elaborating on the fate profiling and risk magnitude of butralin during large-scale applications was conducive to agroecosystems sustainability and dietary rationality. Occurrence, dissipation and concentration variation of butralin were elucidated from garlic cultivation to household processing by tracing UHPLC–MS/MS within 2 min, with regard to original depositions, half-lives, and terminal magnitude in typical origins of garlic. The processing factors (Pfs) of butralin were further clarified among washing, stir-frying and pickling of garlic crops, and pickling was the most effective way for butralin removal with a Pf of 0.092. A probabilistic model with Pfs was further introduced for the comprehensive risk estimations, by reduction factors of 3.1–10.9 from raw garlic crops to processed products. The short-term risks of butralin from green garlic were greater than those between garlic shoot and garlic, with the %ARfDs of 0.030 %–6.323 % from 50th to 99.9th percentiles. The long-term risks were inversely correlated to the age of the population, whose location in rural (%ADIs, 0.256 %–0.768 %) suffered more serious exposures than in urban (%ADIs, 0.231 %–0.699 %). High potential risk amplification should be continuously emphasized given the increasing applications and persistent fate of butralin, especially for vulnerable rural children.

Occurrence and fate characteristics of isoproturon from garlic cultivation to household processing: Implication for human exposure

The fate characteristics of isoproturon (IPU) from garlic cultivation to household processing was elucidated by a tracing UHPLC-MS/MS based on the favorable storage stability. The occurrence, pharmacokinetics dissipation and terminal magnitude of IPU were reflected by parameters including original deposition of 31–170 μg kg−1, half-lives of 11.5–19.4 d, and final concentrations of <1.0–250.6 μg kg−1. The processing factors of IPU were further clarified in terms of washing, stir-frying and pickling, with processing factors of 0.008–0.828. The chronic dietary risks (%ADI) were assessed as 1.516–5.242 %, whereas the short-term exposures from green garlic should be continuously emphasized over 99th percentile with unacceptable %ARfD of 147.144–5074.018 %. The acute and chronic risk magnitude significantly decreased by a factor 2.0–125.0 and 2.2–3.3 from raw garlic crops to processed products, respectively. What was noteworthy was the unacceptable acute risks of IPU from green garlic at 99.9th percentile even after a series of processing procedures.