Keefektifan Perlakuan Air Panas terhadap Nematoda Ditylenchus destructor pada Umbi Bawang Putih

The Effectiveness of Hot Water Treatment Against Nematode Ditylenchus destructor on Garlic BulbsThe high importation of garlic increases the risk of entry and spread of Ditylenchus to Indonesia. The hot water treatment (HWT) has the potential to be developed as an effective and safe method for elimination Ditylenchus in garlic. The aim of the current research was to examine effectiveness of HWT application on imported garlic to eliminated Ditylenchus. The research consisted of garlic sampling, nematode identification and determination of population abundance, and HWT. Samples were taken from traditional markets. The range of HWT temperature tested was 41, 43, 45, 47, 49, 51, 53, and 55 °C for 20 minutes and control. Optimization of treatment time was carried out at 49–51 °C for 5, 10, 15, 20, 25, 30 minutes and control. The results showed that based on morphological characters the parasitic nematodes that infect imported garlic from China were D. destructor. Nematode populations are varied in the sample, the highest number was 508 nematodes per 50 g of garlic. Hot water temperature at 41–51 °C did not affect the quality of garlic, and the temperature of 49–55 °C caused 100% nematode mortality. Hot water at 49 °C for 20–30 minutes or 51 °C for 20–25 minutes effectively eliminated Ditylenchus in garlic without affecting the garlic quality. The research confirmed the presence of D. destructor in imported garlic imported from China, so it is recommended to tighten inspection at a port of entry and monitoring its potential spread in Indonesia.

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Effects of hot water treatment, biocontrol agents, disinfectants and a fungicide on storability of English oak acorns and control of the pathogen, Ciboria batschiana

Forest Pathology ◽

10.1046/j.1439-0329.2003.00348.x ◽

2004 ◽

Vol 34 (1) ◽

pp. 47-64 ◽

Cited By ~ 12

Author(s):

I. M. B. Knudsen ◽

K. A. Thomsen ◽

B. Jensen ◽

K. M. Poulsen

Keyword(s):

Water Treatment ◽

Hot Water ◽

Biocontrol Agents ◽

Hot Water Treatment ◽

English Oak ◽

And Control

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Recolonisation by nematodes of hot water treated cooking banana planting material in Uganda

Nematology ◽

10.1163/1568541041217997 ◽

2004 ◽

Vol 6 (2) ◽

pp. 215-221 ◽

Cited By ~ 10

Author(s):

Annemie Elsen ◽

Ben Goossens ◽

Barbara Belpaire ◽

Annemie Neyens ◽

Paul Speijer ◽

...

Keyword(s):

Water Treatment ◽

Crop Yields ◽

Production Systems ◽

Hot Water ◽

Parasitic Nematodes ◽

Hot Water Treatment ◽

Pests And Diseases ◽

Planting Material ◽

Mother Plants ◽

On Farm

Abstract In East Africa, the cooking bananas (Musa spp., AAA group, subgroup Matoke) are the major food crop. Yields are decreasing due to increasing damage caused by a complex of pests and diseases, including plant-parasitic nematodes. Planting of infected material is the principle means of dispersal for these nematodes. An option to control the nematodes in planting material is hot water treatment but the benefits depend on the rate of recolonisation. Therefore, on-farm trials were carried out at five localities representing Musa production systems in Uganda. Hot water treatment of planting material slowed down build-up of Radpholus similis at least until 30 months after planting. This was not only the case for the treated mother plants but also for the suckers that developed from these mother plants. A similar trend was observed for Helicotylenchus multicinctus. Hot water treatment also slowed down the build-up of Pratylenchus goodeyi but this effect was less pronounced.

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Effect of Three Pregermination Treatments on the Growth of Emerging Seedlings of Acacia auriculiformis (Cunn. Ex. Benth)

Asian Journal of Research in Agriculture and Forestry ◽

10.9734/ajraf/2020/v5i330086 ◽

2020 ◽

pp. 19-28

Author(s):

Y. O. Abayomi ◽

A. M. Aduradola ◽

J. A. Yisau ◽

R. A. Hammed ◽

S. O. Adeniyi

Keyword(s):

Water Treatment ◽

Plant Height ◽

Sulphuric Acid ◽

Acid Treatment ◽

Treatment Time ◽

Hot Water ◽

Acacia Auriculiformis ◽

Morphological Parameters ◽

Hot Water Treatment ◽

Stem Height

This research was carried out to determine the effect of some pregermination treatments on the seeds of Acacia auriculiformis as it affects growth. The treatments involve the effect of sulphuric acid (concentration and time), mechanical scarification (at different sides), and hot water treatment (volume and time). Split plot design was used for acid treatment and hot water treatment, while Randomized Complete Block Design (RCBD) was used for mechanical scarification. The experiment was carried out at Federal University of Agriculture, Abeokuta, Nigeria. Parameters assessed include; plant height, stem height, leaf number. Acid treatment was carried out using different concentration of sulphuric acid (98%, 50% and 20%) and different treatment time (2 minutes, 5 minutes and 10 minutes). Concentration of acid was significant (p<0.05) on plant height, stem height and leaf number, higher concentration of acid (98%) enhanced morphological parameters of Acacia auriculiformis. Result showed that mechanical scarification significantly affect stem height (p<0.05), however, while mechanical scarification does not significantly affect plant height, the highest mean plant height (8.98 cm) was observed in seeds that were mechanically scarified at the micropyle; early germination of seeds was also noticed. Hot water treatment was carried out using different volume of water (50 cl and 1 litre) and varying treatment time (2 minutes, 4 minutes, 6 minutes and 10 minutes), the treatment showed no significant difference, and this method is not favourable for breaking seed dormancy of Acacia auriculiformis. Result showed that 100% germination could be achieved within seven (7) days when seeds are mechanically scarified at the micropyle, circumference, distal-end and micropyle+distalend, provided the seeds are viable. This research conclude that, acid scarification using H2SO4 at 98% concentration is the best method yielding better morphological parameters in Acacia auriculiformis, followed by mechanical scarification (especially when scarified at the micropyle).

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Effect of Seed Size and Different Pretreatment Methods on Germination of Albizia zygia (DC.) J. F. Macbr

Journal of Applied Sciences and Environmental Management ◽

10.4314/jasem.v25i5.19 ◽

2021 ◽

Vol 25 (5) ◽

pp. 815-818

Author(s):

O.A. Iroko ◽

S.O. Rufal ◽

W.T. Wahab

Keyword(s):

Water Treatment ◽

Seed Size ◽

Cold Water ◽

International Market ◽

Hot Water ◽

Hot Water Treatment ◽

Hard Seed ◽

Seed Pretreatment ◽

And Control ◽

Hard Seed Coat

Albizia zygia produces valuable timber which has received some level of prominence in the international market. However, the seeds are dormant, and the tree species remain undomesticated. This study was conducted to evaluate the effect of seed size and presowing on the germination of Albizia zygia in a nursery. Seeds were grouped into four categories in regard to their length, small (≤0.5 cm), medium (> 0.5 < 0.8 cm), large (≥0.8 cm), and mixture of small, medium, and large seeds. The seeds were subjected to five main seed pretreatment methods, namely, soaking in sulphuric acid (H2SO4) for 2 minutes, mechanical scarification, soaking in hot water for 5 minutes, soaking in cold water for 24 hours, and control where seeds were sown without any treatment. The results indicate that combination of mechanical scarification and large seeds produced the highest (100%) germination. Hot water treatment was effective in large seeds producing 69.0% germination. The increased germination for mechanically scarified seeds suggests that seed dormancy in Albizia zygia is mainly due to its hard seed coat. Therefore, it is recommended to farmers to adopt use of mechanical scarification and large seeds, since it is safe and effective.

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THE EFFECT OF PRE-WARMING, PRE-SOAKING AND HOT-WATER TREATMENT ON THE GROWTH OF NARCISSUS AND CONTROL OF STEM EELWORM (DITYLENCHUS DIPSACI(KÜHN) FILIPJEV)

Acta Horticulturae ◽

10.17660/actahortic.1975.47.25 ◽

1975 ◽

pp. 165-170

Author(s):

A.A. Tompsett

Keyword(s):

Water Treatment ◽

Hot Water ◽

Hot Water Treatment ◽

Ditylenchus Dipsaci ◽

And Control

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Silane-Grafted / Moisture-Curable Ethylene—Propylene Elastomers for the Cable Industry

Rubber Chemistry and Technology ◽

10.5254/1.3538230 ◽

1986 ◽

Vol 59 (5) ◽

pp. 722-739 ◽

Cited By ~ 47

Author(s):

S. Cartasegna

Keyword(s):

Molecular Weight ◽

Water Treatment ◽

Low Voltage ◽

Treatment Time ◽

Hot Water ◽

Hot Water Treatment ◽

Ambient Conditions ◽

Medium Voltage ◽

Rate Improvement ◽

High Flexibility

Abstract The present study has shown the capability of VTMOS grafting and moisture crosslinking of EP Elastomers. These capabilities are very large and have been shown to be dependent on various parameters. In EP copolymers, the crosslinking potential appears to be a function of the ethylene content, molecular weight, and molecular weight distribution. In the case of diene containing terpolymers, the process is shown to be limited by the diene content of the polymer through probable parasitic condensation reactions of grafted alkoxy silane. The good performance of the EP elastomers in silane-grafting/moisture-crosslinking can be also utilized in the modification of LDPE when crosslink rate improvement (elimination of hot-water treatment/hot-water treatment time reduction) or higher flexibility and lower shrinkage are needed. The positive results of this study made possible the development of EP elastomer compounds using silane-grafting and moisture-crosslinking for electrical applications. In Table IX and Table X are reported two EP elastomer compounds respectively for low-voltage and medium-voltage cable insulation applications. The key features of the above mentioned two EP elastomer compounds are the following: • high flexibility (comparable to conventional peroxide cure compound) • good mechanical properties • very fast extrusion (for productivity) • easy/versatile processing • high crosslinking state (set properties) • crosslinkable in ambient conditions.

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