Post-harvest fog treatment of apples: deposition patterns and control of Phlyctaena vagabunda and superficial scald

A study was conducted to evaluate the in vitro efficacy of different essential oils in the management of post-harvest fruit rot of banana. It was carried out in completely randomized design (CRD) with three replications and six treatments at Nepal Plant Diseases and Agro Associates (NPDA). The each of six treatments: cinnamon oil (Cinnamomum verum), mustard oil (Brassica oleracea), castor oil (Ricinus communis), neem oil (Azadirachta indica), coconut oil (Cocos nucifera) and control were used at concentrations 200ppm, 500ppm and 1000ppm respectively. The radial growth of mycelium (mm) and percent growth inhibition (%) of Colletotrichum spp. was recorded. The decrease in the radial growth and increase in the percent growth inhibition was found in all the treatments except control as their concentration was increased, in which the lowest radial growth and the highest percent growth inhibition was found at 1000 ppm concentration. At 1000 ppm concentration, cinnamon oil shows the lowest radial growth and the highest percent growth inhibition (1.67mm and 98.15%) followed by mustard oil (54.00mm and 40.00%), neem oil (55.17mm and 38.70%), castor oil (55.83mm and 37.96%), coconut oil (61.17mm and 32.04%) and control (90mm and 0.00%) respectively.Thus, cinnamon oil is considered as a good essential oil in regards to a management of post-harvest disease of banana. Int. J. Appl. Sci. Biotechnol. Vol 9(3): 187-192.

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Transcriptomic Insights on the Preventive Action of Apple (cv Granny Smith) Skin Wounding on Superficial Scald Development

International Journal of Molecular Sciences ◽

10.3390/ijms222413425 ◽

2021 ◽

Vol 22 (24) ◽

pp. 13425

Author(s):

Nadia Cainelli ◽

Cristian Forestan ◽

Dario Angeli ◽

Tomas Villegas ◽

Fabrizio Costa ◽

...

Keyword(s):

Time Course ◽

Mechanistic Explanation ◽

Rna Seq ◽

Preventive Action ◽

Superficial Scald ◽

Post Harvest ◽

Local Inhibition ◽

Transcriptional Changes ◽

Skin Wounding ◽

Preventive Role

Superficial scald is a post-harvest chilling storage injury leading to browning of the surface of the susceptible cv Granny Smith apples. Wounding of skins has been reported to play a preventive role on scald development however its underlying molecular factors are unknown. We have artificially wounded the epidermal and sub-epidermal layers of apple skins consistently obtaining the prevention of superficial scald in the surroundings of the wounds during two independent vintages. Time course RNA-Seq analyses of the transcriptional changes in wounded versus unwounded skins revealed that two transcriptional waves occurred. An early wave included genes up-regulated by wounding already after 6 h, highlighting a specific transcriptional rearrangement of genes connected to the biosynthesis and signalling of JA, ethylene and ABA. A later transcriptional wave, occurring after three months of cold storage, included genes up-regulated exclusively in unwounded skins and was prevented from its occurrence in wounded skins. A significant portion of these genes was related to decay of tissues and to the senescence hormones ABA, JA and ethylene. Such changes suggest a wound-inducible reversed hormonal balance during post-harvest storage which may explain the local inhibition of scald in wounded tissues, an aspect that will need further studies for its mechanistic explanation.

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Pre-harvest climate and post-harvest acclimation to cold prevent from superficial scald development in Granny Smith apples

Scientific Reports ◽

10.1038/s41598-020-63018-3 ◽

2020 ◽

Vol 10 (1) ◽

Cited By ~ 2

Author(s):

Mathieu Marc ◽

Maryline Cournol ◽

Sylvain Hanteville ◽

Anne-Sophie Poisson ◽

Marie-Charlotte Guillou ◽

...

Keyword(s):

Superficial Scald ◽

Post Harvest

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Salmonella surveillance and control at post-harvest in the Belgian pork meat chain

Food Microbiology ◽

10.1016/j.fm.2008.12.009 ◽

2009 ◽

Vol 26 (3) ◽

pp. 265-271 ◽

Cited By ~ 28

Author(s):

L. Delhalle ◽

C. Saegerman ◽

F. Farnir ◽

N. Korsak ◽

D. Maes ◽

...

Keyword(s):

Pork Meat ◽

Post Harvest ◽

And Control

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Influence of 8-hydroxyquinoline sulphate and sucrose treatments on the post-harvest quality of cut flowers of Strelitzia reginae and Hippeastrum vittatum

Acta Agronomica Hungarica ◽

10.1556/aagr.57.2009.2.8 ◽

2009 ◽

Vol 57 (2) ◽

pp. 165-174

Author(s):

F. Hassan

Keyword(s):

Vase Life ◽

Distilled Water ◽

Cut Flower ◽

Cut Flowers ◽

Fresh Weight ◽

Initial Weight ◽

Post Harvest ◽

Strelitzia Reginae ◽

And Control

This investigation was carried out to study the effect of 100, 200 and 300 ppm 8-hydroxyquinoline sulphate (8-HQS) and 5 and 10% sucrose treatments on the vase life and post-harvest quality of cut flowers of Strelitzia reginae Ait. and Hippeastrum vittatum Herb. cv. Apple Blossome. All possible combinations of 8-HQS and sucrose were tested. The treatments were applied as holding solutions, and control flowers were held in distilled water till the end of the experiment. All the treatments significantly increased the vase life and number of open florets of Strelitzia reginae cut flowers compared to the control. Applying 8-HQS and sucrose treatments in both seasons improved the vase life and floret longevity of Hippeastrum vittatum cut flowers. In addition, the percentage of fresh weight gain from the initial weight and the carbohydrate content were also enhanced in both cut flower crops. In order to obtain the highest post-harvest quality of Strelitzia reginae Ait. and Hippeastrum vittatum Herb. cv. Apple Blossome cut flowers, treatment with 200 ppm 8-HQS + 10% sucrose was recommended.

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Meningkatkan Pemahaman akan Pengendalian OPT Bawang Putih pada Anggota Kelompok Tani Ngudi Rahayu

To Maega | Jurnal Pengabdian Masyarakat ◽

10.35914/tomaega.v3i2.380 ◽

2020 ◽

Vol 3 (2) ◽

pp. 104

Author(s):

Puguh Bintang Pamungkas ◽

Ardiyanta Ardiyanta

Keyword(s):

Pest Control ◽

Allium Sativum ◽

Biological Agents ◽

Post Harvest ◽

Central Java ◽

Technical Culture ◽

Increase In Productivity ◽

And Control

AbstrakBawang putih (Allium sativum L.)memiliki begitu banyak manfaat, dimana seharusnya diikuti dengan peningkatan akan produktivitasnya. Namun dilapangan budidaya bawang putih belum mampu mencukupi permintaan dari pasar, sehingga dilakukan import untuk memenuhinya. Banyak faktor yang menyebabkan rendahnya produktivitas bawang putih, mulai dari kualitas bibit yang rendah, sampai gangguan OPT (organisme pengganggu tanaman). Pengendalian OPT (organisme pengganggu tanaman) yang tepat juga akan membantu peningkatan produktivitas bawang putih, dimana pengendalian bisa dilakukan dengan mengidentifikasi terlebih dahulu OPT yang menyerang. Kemudian dilakukan pengendalian secara kultur teknis, maupun penggunaan agen hayati. Oleh karena itu, dilakukan penyuluhan/sosialisasi mengenai pengenalan dan pengendalian OPT bawang putih, (baik di lahan maupun di gudang pasca panen) yang diikuti oleh anggota Kelompok Tani Ngudi Rahayu, Cepit, Pagergunung, Kec. Bulu, Kab. Temanggung, Jawa Tengah. Berdasarkan, hasil kegiatan penyuluhan, pengetahuan petani akan pengenalan dan pengendalian OPT meningkat sebesar 39% dibandingkan sebelum adanya kegiatan penyuluhan. Dari kegiatan yang telah dilakukan dapat disimpulkan bahwa petani melakukan pengendalian dengan cara yang telah dilakukan turun-temurun, pemahaman petani akan pengendalian OPT mengalami peningkatan setelah kegiatan sosialisasi, oleh karena itu perlu dilakukan pendampingan secara berkala kepada petani, sehingga hasil penyuluhan dapat memberikan damapak nyata terhadap peningkatan produksi bawang putih.Kata Kunci: bawang putih, kelompok tani, opt, sosialisasi.AbstractGarlic (Allium sativum L.) has so many benefits, which should be followed by an increase in productivity. But in the field of garlic cultivation has not been able to meet the demand of the market, so do import to fulfill. Many factors cause low productivity of garlic, starting from low quality seeds, to pest and disease disorders. Proper pest control will also help increase the productivity of garlic, where control can be done by identifying the pest first. Then the technical culture is controlled and the use of biological agents. Therefore, socialization was carried out regarding the introduction and control of garlic pests (both on land and in the post harvest warehouse) which was followed by members of the Ngudi Rahayu Farmer Group, Cepit, Pagergunung, Bulu, Temanggung, Central Java. Based on the results of extension activities, knowledge and farmers will be the introduction of the pest control increased by 39% compared to before their extension activities. From the activities that have been carried out it can be concluded that farmers carry out control in a way that has been carried down for generations, farmers' understanding of pest control has increased after socialization activities, therefore it is necessary to provide periodic assistance to farmers, so that the results of counseling can have a real impact on increasing garlic production.Key Word: Farmers, garlic, pest, socialization

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Sustainable alternatives for post-harvest strawberry conservation

Australian Journal of Crop Science ◽

10.21475/ajcs.20.14.10.p2550 ◽

2020 ◽

pp. 1670-1674

Author(s):

Léo Omar Duarte Marques ◽

Jorge Atílio Benati ◽

Josiane Duarte de Carvalho ◽

Paulo Mello- Farias ◽

Tâmara Foster Acosta ◽

...

Keyword(s):

Sodium Hypochlorite ◽

Potato Starch ◽

Storage Period ◽

Cassava Starch ◽

Soluble Solids ◽

Post Harvest ◽

Randomized Design ◽

And Control ◽

Uv C ◽

Storage Temperatures

Strawberries show a short post-harvest conservation period. To improve it, the effect of different post-harvest storage temperatures, conservation methods and three different storage periods were tested on ‘San Andreas’ strawberry, right after harvest. The experiment consisted of a three factorial 2 x 5 x 3 (temperatures x methods x storage periods), arranged in a completely randomized design (CRD). Four replications were used for each treatment, each with five sampling units. The treatments tested were: storage temperatures - 1°C and 18°C (T1 and T2); conservation methods - sodium hypochlorite 0.5% (C1), potato starch film 6% + sodium hypochlorite 0.5% (C2), cassava starch film 6% + sodium hypochlorite 0.5% (C3), UV-C radiation (C4), and control (no treatment) (C5); Storage period - 3, 6, and 9 days (D1, D2, D3, respectively). The parameters assessed were flesh firmness, color (hue angle, chroma, and luminosity), soluble solids (SST) and mass loss. Fruit kept at a temperature of 1°C showed better traits than those stored at 18°C, regardless of the method and storage period. Among the conservation methods tested, only UV-C and sodium hypochlorite improved some attributes (firmness and SST) when associated with refrigeration at 1°C. The use of potato and cassava starch is not as expected since they do not improve conservation and the total soluble solids contents.

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Effect of Hexanal as a Post-harvest Treatment to Extend the Shelf-life of Banana Fruits (Musa acuminata var. Sweet Banana) in Kenya

International Journal of Plant & Soil Science ◽

10.9734/ijpss/2019/v29i230140 ◽

2019 ◽

pp. 1-16

Author(s):

Peninah Yumbya ◽

Margaret Hutchinson ◽

Jane Ambuko ◽

Willis Owino

Keyword(s):

Shelf Life ◽

Value Chain ◽

Titratable Acidity ◽

Ecological Zones ◽

Post Harvest ◽

Naturally Occurring ◽

Mode Of Application ◽

The Tropics ◽

And Control

The short shelf-life of fruits in the tropics continues to be a pressing problem for farmers and other value chain actors. Hexanal is a naturally occurring compound that has received attention as a novel postharvest compound preservative. This study was conducted to determine the effect of hexanal on enhancing the postharvest shelf-life and quality of ‘sweet banana’ fruits. Two hexanal concentrations (2% and 3%) were applied as either a pre-harvest spray or a post-harvest dip. Fruits were obtained from two different agro ecological zones of Kenya (AEZs II and IV). The treated fruits were kept under ambient room conditions of 25 ± 1°C and RH 60 ± 5% to ripen. Hexanal treatment maintained the fruits quality and prolonged the shelf-life by 6 days in the dipped fruits, 6 and 3 days in the sprayed fruits from the drier AEZ IV and colder AEZ II respectively compared to the untreated controls. Hexanal treatments significantly (P = .05) delayed or reduced the rate of most of the physicochemical parameters analysed irrespective of the concentration and mode of application used. Fruit firmness was significantly (P = .05) maintained up to day 6 and 9 of storage in the treated fruits compared to the controls which softened drastically as from day 3 and 6 in the sprayed and dipped fruits respectively. Hexanal treatment delayed ethylene and respiratory peaks by 3 days in both modes of application and significantly delayed progression of other ripening related changes such as 0Brix, titratable acidity, simple sugars and vitamin C. Sensory evaluation showed no significant differences in the various quality attributes analysed between the hexanal treated and control fruits. The results of this study indicate that, use of hexanal is a potential technology that could be adopted by banana farmers to enhance post-harvest shelf-life without compromising on quality.

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