Garlic (Allium sativum L.) research in India

Mahajan, Vijay; Benke, Ashwini Prashant; Gupta, Amar Jeet; Singh, Major

doi:10.5958/2249-5258.2017.00024.0

Cited by 6 publications

(5 citation statements)

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“…For Caijiapo purple garlic, an adjustment size, L, of 40 mm is more suitable for efficient seed metering. In addition, using the virtual simulation results, the adaptive adjustment size, L, for different varieties of garlic can be obtained and recorded to facilitate the application and operation of the designed machine in the future [39][40][41][42].…”

Section: Simulation Results and Analysismentioning

confidence: 99%

Design and Simulation of a Garlic Seed Metering Mechanism

Guo

Cao

Song³

et al. 2021

Agriculture

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According to the agronomic requirements of garlic sowing, the garlic morphology is studied and a garlic seed metering mechanism with excellent seeding performance is designed. Based on this design, a new garlic seeding machine with an adjustable-size seeding device is developed to realize efficient single-seed metering and seeding of different varieties of garlic. Further, the design scheme of the garlic seeder prototype is established, with the key components of the garlic seeding being designed on the basis of the garlic seeding mechanism. To achieve garlic single-seed metering for different varieties of garlic, the optimal adjustment size of the garlic seed metering device is determined through discrete element simulation analysis. A field experiment confirms the effectiveness of applying the proposed garlic planter to field sowing in terms of the metrics of missing seed and multiple seed rates. The results of the discrete element simulation test reveal that an adjustment size of 40 mm yields the best single-seed metering performance. At an operating speed of 15–35 rpm, the metering device can achieve more than an 80% qualification rate of single-seed metering, with a unit speed of 0.628–1.465 m/s. Thus, the developed garlic seeding device meets the requirements of precision sowing in China and can effectively realize the mechanized planting of garlic.

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Section: Simulation Results and Analysismentioning

confidence: 99%

Design and Simulation of a Garlic Seed Metering Mechanism

Guo

Cao

Song³

et al. 2021

Agriculture

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“…The average length of the tested garlic was 31.45 mm, the average width was 18.25 mm, and the average thickness was 17.61 mm. The equivalent diameter D of the garlic seeds was calculated using equation (1), and their spherical rate was calculated using equation (2).…”

Section: Agronomic Requirements For Garlic Plantingmentioning

confidence: 99%

“…European countries and the US are vast and sparsely populated, and they generally adopt largescale and specialized production models for garlic. [1][2][3] The garlic industry chain is highly automated. To facilitate mechanical operation, there are no requirements for the direction of scales and the upright rate of garlic seeds during sowing.…”

Section: Introductionmentioning

confidence: 99%

Design and experiment of a type hole wheel garlic seed metering device

Wang

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Aiming at the problems of low single-seed rate, high rate of missing seeds, high rate of multiple seeds, and low rate of upright seeds in the mechanized sowing of garlic seeds, this paper proposes a structural design scheme of a type hole wheel garlic seed metering device based on the characteristics of garlic species. Based on the agronomic requirements of garlic planting and the characteristics of garlic species, the mechanism of the hole wheel structure to improve the seed filling performance of the seed metering device was clarified, a structural parameter design of the key components of the device was established through theoretical calculations, and a single-factor simulation test was conducted using the Engineering Discrete Element Modelling (EDEM) software. Using the Design-Expert 11 data analysis software, a mathematical regression model of each test factor and test index was established, and the test factors were analyzed. The parameters were optimized, and the following was found to be the optimum parameter combination: seeding wheel speed of 30 rpm, profile hole depth of 18 mm, and adjustment length of the profile hole of 41 mm. The EDEM simulation test results showed a single-seed rate of 91.67% and a missing seed rate of 4.17%. The bench test results showed a single-seed rate of 89.2%, a missing seed rate of 5.0%, and a multiple seed rate of 5.8%. The field test results showed a single-seed rate of 88.44%, a multiple seed rate of 4.11%, a missing seed rate of 7.44%, a breakage rate of 1.11%, and an upright rate of 62.36%. The errors between the bench test/field test and the discrete element simulation test results were 2.7% and 3.5%, respectively, which were consistent with the simulation results, thus meeting the requirements of single-seed sowing using the garlic seed metering device.

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“…Flavonoids and quercetin present in onions reduce the oxidative damage of cells (Ravichandran et al, 2012). In India, the average production of onion is around 224.27 lakh tonnes and productivity is about 17.18 t/ha (Mahajan et al, 2017). The productivity of onion is pretended by various fungal and bacterial diseases such as basal rot, purple blotch, anthracnose and stem blight which cause severe loss in the productivity both in field and in storage conditions.…”

Section: Introductionmentioning

confidence: 99%

Gas Chromatography Mass Spectrometry (GCMS) analysis of the antagonistic potential of Trichoderma hamatum against Fusarium oxysporum f. sp. cepae causing basal rot disease of onion

Oviya

Thiruvudainambi

Ramamoorthy

et al. 2022

JBC

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Fusarium oxysporum f. sp. cepae causing basal rot disease of onion is a destructive phytopathogen resulting in 30-50% yield loss and remains as a major constraint in onion productivity. The management of disease through application of fungicide is not feasible and economically viable. Hence, the present study is focused on investigation of effective Trichoderma sp. and identifying the effective volatile organic compounds produced by it against the basal rot pathogen in onion. A total of ten Trichoderma spp. were isolated from rhizospheric soil of healthy onion plants and tested against virulent Fusarium oxysporum f. sp. cepae isolate FCIM1. The Trichoderma isolate (TIM2) showed 77.40% inhibition on mycelial growth of pathogen followed by the isolate (TIV1) with 70.36% inhibition. The molecular identification of effective Trichoderma isolate through the analysis of the rDNA of Internal Transcribed Spacers (ITS) region revealed isolate TIM2 as Trichoderma hamatum. The GC-MS analysis of Trichoderma hamatum unravelled the important volatile organic compounds like Methyl stearate, n-Hexadecanoic, Eicosane, 9-cyclohexy, Heptadecane, Dodecane, 2-cyclohexyl, to 2H-Pyran-2-one, 6-pentyl, 5-Hydroxymethylfurfural, Tetrapentacontane, 1-Dodecanol, 2-Propenoic acid, pentadecyl ester, Benzene, (2-methylbutyl) and 1,2-Dimethyltryptamine with peak area and retention time. These bioactive compounds exert a strong antifungal activity against Fusarium oxysporum f. sp. cepae. The scanning electron micrographs of Fusarium paired with effective Trichoderma (TIM2) showed the swollen hyphae with cell wall damage which is clear evident of antagonistic interaction of volatile compounds produced by Trichoderma hamatum.

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Garlic (Allium sativum L.) research in India

Cited by 6 publications

References 0 publications

Design and Simulation of a Garlic Seed Metering Mechanism

Design and Simulation of a Garlic Seed Metering Mechanism

Design and experiment of a type hole wheel garlic seed metering device

Gas Chromatography Mass Spectrometry (GCMS) analysis of the antagonistic potential of <i>Trichoderma hamatum</i> against <i>Fusarium oxysporum</i> f. sp. cepae causing basal rot disease of onion

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