Relevant bibliographies by topics / Hevea brasiliensis – Cultures

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Academic literature on the topic 'Hevea brasiliensis – Cultures'

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Published: 4 June 2021

Last updated: 16 February 2022

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Journal articles on the topic "Hevea brasiliensis – Cultures"

Mendanha, Asseara Batista Leitão, Roberto Augusto de Almeida Torres, and Adelson de Barros Freire. "Micropropagation of rubber trees (Hevea brasiliensis Muell. Arg.)." Genetics and Molecular Biology 21, no. 3 (1998): 395–98. http://dx.doi.org/10.1590/s1415-47571998000300018.

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Tissue cultures were established from newly expanded leaves and axillary buds of rubber trees (Hevea brasiliensis Muell. Arg.). Calli formed from these explants, but no regeneration occurred. Shoots were obtained from axillary buds cultured on Murashige and Skoog's (MS) medium (Physiol. Plant. 15: 473-497, 1962) supplemented with 1.0 mg/l kinetin, 1.0 mg/l 2,4-dichlorophenoxyacetic acid (2,4-D), 20 g/l sucrose and 4 g/l Difco agar. Formation of a root similar to a tap root was induced on MS medium supplemented with 5.0 mg/l naphthaleneacetic acid (NAA), 3.0 mg/l indolylbutyric acid (IBA), 50 g/l sucrose and 4 g/l Difco agar. Several types of explants were used in attempts to recover complete rubber tree plants with well-developed tap roots. Leaf explants and axillary buds formed calli on MS basic medium with different combinations of kinetin, benzylaminopurine (BAP), 2,4-D, IBA, NAA and indolylacetic acid (IAA). The antibiotic tetracycline was also used to control possible bacterial infections. However, no antibiotic effect was noted. Calli formation was abundant, but no regeneration was observed when the calli from different media was transferred to MS medium without growth hormones. On this basic medium, callus cultures became necrotic and died. Shoots developed from axillary buds, rooted vigorously when cultured on MS medium with NAA, IAA, and IBA. Based on these results, further studies with commercially important clones should lead to a feasible micropropagation technique.

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Enjalric, F., M. P. Carron, and L. Lardet. "CONTAMINATION OF PRIMARY CULTURES IN TROPICAL AREAS: THE CASE OF HEVEA BRASILIENSIS." Acta Horticulturae, no. 225 (June 1988): 57–66. http://dx.doi.org/10.17660/actahortic.1988.225.6.

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Tan, Deguan, Xuepiao Sun, and Jiaming Zhang. "Histochemical and immunohistochemical identification of laticifer cells in callus cultures derived from anthers of Hevea brasiliensis." Plant Cell Reports 30, no. 6 (2011): 1117–24. http://dx.doi.org/10.1007/s00299-011-1019-9.

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Kuluev, B. R., G. R. Gumerova, A. V. Knyazev, Kh G. Musin, and A. V. Chemeris. "Obtaining of hairy roots cultures of kok-saghyz and analysis of the content of natural rubber." Biomics 12, no. 4 (2020): 449–54. http://dx.doi.org/10.31301/2221-6197.bmcs.2020-36.

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Kok-saghyz (Taraxacum kok-saghyz Rodin) is an alternative to Hevea brasiliensis source of high quality natural rubber that is able to grow in temperate climates. However, the field cultivation of kok-saghyz is associated with a number of problems, such as the need for seed stratification, seedlings that are very sensitive to stress factors, laboriousness in the fight against weeds and pests, uneven maturation of seeds, the lack of special equipment for sowing, collecting roots and seeds. In this regard, the use of hairy roots of kok-saghyz as a raw material for obtaining natural rubber seems to be promising. The aim of our work was to obtain cultures of hairy roots of kok-saghyz and to determine the content of natural rubber in them by the hexane method. In the course of the work, 10 lines of hairy roots of kok-saghyz were obtained, capable of growing in isolated cultures. It has been shown that these hairy roots accumulate an average of 7.5% hexane extract (rubber-like substances) per dry weight, which is about 1.5 times more than the roots of field kok-saghyz. Our data indicate that the use of the hairy roots of kok-saghyz is promising for the industrial production of natural rubber.

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Lima, Tomás Cássio de Caires, Cynthia Venâncio Ikefuti, Uderlei Doniseti Silveira Covizz, Luciana Teixeira de Paula, and Lusia Damasceno. "Estudo de luminosidade para o consórcio das culturas de seringueira (Hevea brasiliensis L.) e banana (Musa spp.) no município de Tabapuã/SP / Luminosity study for the consortium of cultures of rubber trees (Hevea brasiliensis L.) and banana (Musa spp.) in the city of Tabapuã / SP." Brazilian Journal of Animal and Environmental Research 3, no. 4 (2020): 4081–86. http://dx.doi.org/10.34188/bjaerv3n4-103.

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Penot, Eric, and Isabelle Ollivier. "L'hévéa en association avec les cultures pérennes, fruitières ou forestières : quelques exemples en Asie, Afrique et Amérique latine." BOIS & FORETS DES TROPIQUES 301, no. 301 (2009): 67. http://dx.doi.org/10.19182/bft2009.301.a20407.

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Initialement développée par le secteur des grandes plantations au début du siècle, l'hévéaculture est aujourd'hui principalement le fait de petites exploitations paysannes. Le modèle de diffusion initial fut la monoculture stricte. Cependant, les cultures vivrières intercalaires pendant la période immature de l'hévéa, Hevea brasiliensis, sont relativement bien développées, y compris dans les anciens projets de développement sectoriels. En revanche, les associations incluant des cultures pérennes ou forestières sont peu recensées et souvent peu acceptées par les institutions de développement, comme ce fut le cas en Indonésie durant années 1990. Elles existent localement, parfois sur des superficies importantes : le " jungle rubber ", par exemple. Ces pratiques assurent pourtant une meilleure valorisation de la terre et de la main-d'oeuvre et les associations permanentes avec des cultures pérennes constituent un facteur de stabilisation économique des plantations et de diversification des revenus. Les systèmes agroforestiers complexes constituent aussi un avantage écologique puisqu'ils sont garants du maintien d'une grande partie de la biodiversité rencontrée en forêt naturelle. Le peu d'intérêt officiellement reconnu pour ces associations malgré des avantages économiques et environnementaux peut être imputé au fait qu'elles ne correspondent pas au type d'hévéaculture dominant au sein des grandes sociétés de plantations et des institutions de développement. Nombre de paysans ont innové et mis au point des systèmes astucieux et pratiques leur permettant de diminuer les risques et de diversifier leur production. Le présent article tend à faire le point sur les associations existantes : hévéa associé au café, au thé, au cacao, au rotin ainsi qu'aux espèces fruitières ou forestières. Il ne prétend pas analyser les systèmes en détail mais a pour objectif d'en présenter la diversité. (Résumé d'auteur)

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Perrin, Y., L. Lardet, F. Enjalric, and M. P. Carron. "Rajeunissement de clones matures d'Hevea brasiliensis (Müll. Arg.) par microgreffage in vitro." Canadian Journal of Plant Science 74, no. 3 (1994): 623–30. http://dx.doi.org/10.4141/cjps94-112.

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In vitro micrografting of apices of two mature genotypes of Hevea brasiliensis (Müll. Arg.), IRCA 18 and PB 235, on 3-wk-old seedlings grown in vitro permitted successfull in vitro micro-cutting of these two genotypes. Microcutting of micrografted material was impossible from nodal explants or shoot tips of scions developed in vitro on rootstocks. Such explants were incapable of caulogenesis activity after their isolation. This problem was resolved using mixed explants, each consisting of a part of the rootstock in contact with the culture medium, and of the clonal scion from which axillary shoots are developed regularly along the subcultures. Budding and shoot elongation abilities along the subcultures have been compared between mixed explants from micrografts, nodal explants from juvenile material and nodal explants from non-micrografted mature genotypes. The results show a very positive effect of micrografting on the in vitro caulogenesis ability in both genotypes. Moreover, shoots produced by mixed explants from micrografts exhibit the same rooting ability as shoots produced by explants collected on juvenile material. Key words: Rejuvenation, Hevea brasiliensis, in vitro micrografting, micropropagation, in vitro microcutting

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Kouassi, K. M., K. E. Koffi, Y. M. Gnagne, O. N`nan, Y. Coulibaly, and A. Sangare. "Production of Hevea brasiliensis Embryos from in vitro Culture of Unpolinated Ovules." Biotechnology(Faisalabad) 7, no. 4 (2008): 793–97. http://dx.doi.org/10.3923/biotech.2008.793.797.

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Sukamto, Dwi Sucianingtyas, Lila Maharani, Siti Amalia, Sholeh Avivi, and Didik Pudji Restanto. "Sterilization and Callus Formation of Rubber Meristem (Hevea brasiliensis Muell. Arg.)." Journal of Agricultural Studies 6, no. 4 (2018): 1. http://dx.doi.org/10.5296/jas.v6i4.13796.

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Rubber plant (Hevea brasiliensis Muell Arg) is one of the important plantation commodities in Indonesia because of its role as a source of income. It stimulates the economic growth around the rubber plantation area. The propagation of rubber is still using conventional methods like grafting. The technique of tissue culture through callus induction is one of the alternatives of mass propagation of rubber seedling with quick and efficient time. The sterilization method is very important to determine the success of tissue culture techniques. Therefore, the aim of this research is to know the best method of sterilization and callus formation in rubber explants. The basic media used were WPM and MS, with BAP of 2 ppm and NAA 0.1 ppm. The best result of sterilization is by soaking 5% fungicide solution for 5 minutes, 5% Clorox solution for 15 minutes, betadin 10% solution for 5 minutes, and finally it rinsed with sterile water three times. The best medium uses WPM medium for callus induction, with 0.5 cm callus length and embryonic callus. In contrast, the MS medium has 0.4 cm callus length and non embryonic callus.

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Suprayudi, Muhammad Agus, Winda Styani Irawan, and Nur Bambang Priyo Utomo. "Evaluation of incubated defatted rubber seed meal with sheep rumen liquor for Pangasius diet." Jurnal Akuakultur Indonesia 13, no. 2 (2015): 146. http://dx.doi.org/10.19027/jai.13.146-151.

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ABSTRACT The research evaluated the use of rubber seed meal (Hevea brasiliensis; RBS) incubated with sheep rumen liquor as a subtitution of soybean meal in catfish Pangasionodon sp. diet. The fish was cultured for 40 days and fed with the experimental diet containing RBS at five different diet compositions regarding to soybean meal substitution level, i.e. 0% (control), 12%, 23%, 34%, and 44%. Feeding was done three times a day to satiation. No significant different was found on fish-protein retention and survival rate in all treatments. Based on the study result, the use of rubber-seed meal (Hevea brasiliensis; RBS) incubated with sheep rumen liquor could substitute soybean meal in catfish Pangasionodon sp. diet. Keywords: Hevea brasiliensis, Pangasionodon sp., catfish, sheep rumen liquor, rubber seed meal ABSTRAK Penelitian ini mengevaluasi penggunaan tepung bungkil biji karet (Hevea brasiliensis; TBBK) yang diinkubasi dengan cairan rumen domba sebagai pengganti tepung bungkil kedelai pada pakan ikan patin Pangasionodon sp. Pemeliharaan ikan dilakukan selama 40 hari dengan pemberian lima komposisi pakan berbeda sesuai tingkat substitusi tepung bungkil kedelai oleh tepung bungkil karet. TBBK yang ditambahkan untuk mengganti bungkil kedelai adalah sebesar 0%, 12%, 23%, 34% dan 44%. Pemberian pakan dilakukan selama tiga kali sehari secara at satiation. Tidak ditemukan perbedaan signifikan (P&gt;0,05) pada nilai retensi protein dalam tubuh dan kelangsungan hidup ikan uji pada semua perlakuan. Berdasarkan hasil penelitian, dapat disimpulkan bahwa tepung bungkil biji karet yang diinkubasi dengan cairan rumen domba dapat digunakan sebagai pengganti bungkil kedelai pada pakan ikan patin Pangasionodon sp. Kata kunci: Hevea brasiliensis, Pangasionodon sp., patin, rumen domba, tepung biji karet

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Academic literature on the topic 'Hevea brasiliensis – Cultures'

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Journal articles on the topic "Hevea brasiliensis – Cultures"