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All Journal Jurnal Teknologi Pertanian (Agricultural Technology Journal) CORD
Singh, S. P.
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Agriculture, Biological Sciences & Forestry Computer Science & IT Library & Information Science

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FRUIT RIPENING AND QUALITY OF ‘KENSINGTON PRIDE’ MANGOES FOLLOWING THE CONTROLLED ATMOSPHERE STORAGE Sumual, M. F.; Singh, Z.; Singh, S. P.; Tan, S. C.
Jurnal Teknologi Pertanian (Agricultural Technology Journal Vol 8, No 1 (2017): Jurnal Teknologi Pertanian (Teta)
Publisher : Fakultas Pertanian, Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jteta.8.1.2017.16348

Abstract

Hard mature green ‘Kensington Pride’ mangoes were stored in normal air (NA) or in controlled atmosphere (CA) chambers with combinations of 3% oxygen (O2) and three concentrations of carbon dioxide (CO2) i.e. CA1: 3%, CA2: 4%, or CA3: 5% at 13⁰C for 4 weeks followed by ripening at 21⁰C. The effects of CA on fruit quality during ripening were investigated. At fully ripe stage, fruits stored in CA were firmer and greener with concomitant lower reduction of chlorophylls compare to those stored in NA. All CA-stored fuit retained its skin carotenoids during ripening. The reduction of sucrose and glucose concentrations were measured in all CA-stored fruit, and the same condition were also measured for citric acid and succinic acid content during ripening. However, concentration of glucose, citric acid and succinic acid in CA-stored fruit were higher than NA-stored fruit. Pulp carotenoids and ascorbic acid in all CA-stored fruit were higher compare to NA-stored fruit at the ripe stage. The data suggest that CA storage could improve the ripe quality of ‘Kensington Pride’ mango to some extend.
Coconut hispine beetle Brontispa longissima (Gestro) (Coleoptera: Chrysomelidae) Singh, S. P.; Rethinam, Ponniah
International Coconut Community Journal Vol 20 No 1 (2004): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v20i01.376

Abstract

Coconut hispine beetle, Brontispa longissima (Gestro) was originally described from the Aru Islands (Maluku Province). It is native to Indonesia (Aru Islands, Maluku Province and possibly to Papua Province formerly known as Irian Jaya), and also to Papua New Guinea, including the Bismarck Archipelago, where it seldom causes serious problems. It has now spread widely in Asia, Australasia and Pacific Islands attacking not only coconut palm but also several other cultivated and wild palms. In recent times it has spread to Singapore, Vietnam, Nauru, Thailand, Maldives and Hainan Island (China). In the absence of natural antagonists it has become a very serious and devastating pest in new areas of its spread. It is feared that B. longissima will find its way from Maldives to Sri Lanka and southern parts of India to derail the economy of these important coconut-growing regions of the world. Thus emergency operations are necessary to try to decimate it down in the Maldives. A number of natural enemies such as Hispidophila (Haeckeliania) brontispae Ferriere, Ooncyrtus podontiae Gahan, Trichogrammatoidea nana Zehntner, Tetrastichus brontispae Ferriere, Asecodes hispinarum Boucek, Chrysonotomyia sp., Metarhizium anisopliae (Metchnikoff) Sorokin, Chelisoches morio Fabricius, Oecophylla smaragdina (Fabricious), mites on adults (Anoplocelaeno sp. and Celaenopsis sp.), geckoes, skinks, tree frog and unidentified bacterial pathogen have been recorded. Biological control by introduction and enhancement of parasitoids- A. hispinarum and T. brontispae has proved very effective. Similarly spray of improved strains of entomopathogenic fungus, M. anisopliae has proved effective. Exploratory surveys for parasitoids in the original home of B. longissima are suggested.
Co-Authors Rethinam, Ponniah Singh, Z. Sumual, M. F. Tan, S. C.