Effects of Inoculum Concentrations of Colletotrichum gloeosporioides on Disease Development and Severity on Leaves of Rubber Tree (Hevea brasiliensis)
AbstractColletotrichum gloeosporioides is among the main causal agent of anthracnose of the rubber tree (Hevea
brasiliensis). This disease is considered as one of the major foliar diseases that causes declining yields of rubber
production in Asia. In order to understand the effect of environmental variables on anthracnose, the effect of
inoculum concentrations on the disease development and severity was studied. Spore concentration of 106
spores/ml produced the most prominent disease development. Disease was most severe when the leaves were
kept in continuous moisture condition for four weeks. Fungal response study showed that the fungus needed 120
hours after inoculation (hai) to penetrate and colonize leaf cells. Knowledge of this factor on disease
development can help improve management tactics based on the control of environmental factors.
Bailey, J.A., O'Connell, R.J., Pring, R.J. & Nash, C. (1992). Infection strategies of Colletotrichum sp. In: J.A. Bailey & M.J. Jeger (Eds.), Colletotrichum: Biology, Pathology and Control. UK: Redwood Press Ltd. Pp 88-120.
Bertetti, D., Gullino, M.L. & Garibaldi, A. (2009). Effect of leaf wetness duration, temperature and inoculum concentration on infection of evergreen Azalea by Colletotrichum acutatum, the causal agent of anthracnose. Journal of Plant Pathology, 91(3): 763-766.
Chongo, G. & Bernier, C.C. (2000). Effects of host, inoculum concentration, wetness duration, growth stage, and temperature on anthracnose of lentil. Plant Disease, 84: 544-548.
Dean, R.A. & Kúc, J. (1986). Induced systemic protection in cucumber: Effects of inoculum density on symptom development caused by Colletotrichum lagenarium in previously infected and uninfected plants. Phytopathology, 76: 186-189.
Dillard, H.R. (1989). Effect of temperature, wetness duration, and inoculum density on infection and lesion development of Colletotrichum coccodes on tomato fruit. Phytopathology, 79: 1063-1066.
Forcelini, B.B. (2013). Effect of inoculum concentration, temperature and wetness duration on anthracnose fruit rot development on different strawberry cultivars. A published Master thesis, University of Florida.
http://ufdc.ufl.edu/UFE0046391/00001. Jayasinghe, C., Fernando, T. & Priyanka, U. (1996). Colletotrichum acutatum is the main cause of Colletotrichum leaf disease of rubber in Sri Lanka. Mycopathologia, 137: 53-56.
Leandro, L.F.S., Gleason, M.L., Nutter, F.W. Jr., Wegulo, S.N. & Dixon, P.M. (2003). Influence of temperature and wetness duration on conidia and appressorial of Colletotrichum acutatum on symptomless strawberry leaves. Epidemiology, 93(4): 513-520.
Makowski, R.M.D. (1993). Effect of inoculum concentration, temperature, dew period, and plant growth stage on disease of roundleaved mallow and velvetleaf by Colletotrichum gloeosporioides f. sp. malvae. Phytopathology, 83: 1229-1234.
Moral, J., Jurado-Bello, J., Sánchez, M.I., Oliveira, R. & Trapero, A. (2012). Effect of temperature, wetness duration, and planting density on olive anthracnose caused by Colletotrichum spp. Phytopathology, 102: 974-981.
Morin, L., Derby, J.L. & Kokko, E.G. (1996). Infection process of Colletotrichum gloeosporioides f. sp. malvae on Malvaceae weeds. Mycological Research, 100(2): 165-172.
Navie, S. & Adkins, S. (2008). Environmental weeds of Australia. Australia: CRC for Australian Weed Management.
Thambugala, T.A.D.P. & Deshappriya, N. (2009). The role of Colletotrichum sp. on the Colletotrichum leaf disease of Hevea brasiliensis - a preliminary study. Journal of National Science Foundation of Sri Lanka, 37(2): 135-138.
Waller, J.M. (1992). Colletotrichum diseases of perennial and other cash crops. In Bailey, J.A. & M.J. Jeger, (Eds.), Colletotrichum: Biology, Pathology and Control. UK: Redwood Press Ltd. Pp 167-185.
Copyright (c) 2016 Borneo Journal of Resource Science and Technology
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright Transfer Statement for Journal
1) In signing this statement, the author(s) grant UNIMAS Publisher an exclusive license to publish their original research papers. The author(s) also grant UNIMAS Publisher permission to reproduce, recreate, translate, extract or summarize, and to distribute and display in any forms, formats, and media. The author(s) can reuse their papers in their future printed work without first requiring permission from UNIMAS Publisher, provided that the author(s) acknowledge and reference publication in the Journal.
2) For open access articles, the author(s) agree that their articles published under UNIMAS Publisher are distributed under the terms of the CC-BY-NC-SA (Creative Commons Attribution-Non Commercial-Share Alike 4.0 International License) which permits unrestricted use, distribution, and reproduction in any medium, for non-commercial purposes, provided the original work of the author(s) is properly cited.
3) For subscription articles, the author(s) agree that UNIMAS Publisher holds copyright, or an exclusive license to publish. Readers or users may view, download, print, and copy the content, for academic purposes, subject to the following conditions of use: (a) any reuse of materials is subject to permission from UNIMAS Publisher; (b) archived materials may only be used for academic research; (c) archived materials may not be used for commercial purposes, which include but not limited to monetary compensation by means of sale, resale, license, transfer of copyright, loan, etc.; and (d) archived materials may not be re-published in any part, either in print or online.
4) The author(s) is/are responsible to ensure his or her or their submitted work is original and does not infringe any existing copyright, trademark, patent, statutory right, or propriety right of others. Corresponding author(s) has (have) obtained permission from all co-authors prior to submission to the journal. Upon submission of the manuscript, the author(s) agree that no similar work has been or will be submitted or published elsewhere in any language. If submitted manuscript includes materials from others, the authors have obtained the permission from the copyright owners.
5) In signing this statement, the author(s) declare(s) that the researches in which they have conducted are in compliance with the current laws of the respective country and UNIMAS Journal Publication Ethics Policy. Any experimentation or research involving human or the use of animal samples must obtain approval from Human or Animal Ethics Committee in their respective institutions. The author(s) agree and understand that UNIMAS Publisher is not responsible for any compensational claims or failure caused by the author(s) in fulfilling the above-mentioned requirements. The author(s) must accept the responsibility for releasing their materials upon request by Chief Editor or UNIMAS Publisher.
6) The author(s) should have participated sufficiently in the work and ensured the appropriateness of the content of the article. The author(s) should also agree that he or she has no commercial attachments (e.g. patent or license arrangement, equity interest, consultancies, etc.) that might pose any conflict of interest with the submitted manuscript. The author(s) also agree to make any relevant materials and data available upon request by the editor or UNIMAS Publisher.