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Interactions between the nematodes Ditylenchus angustus and Aphelenchoides besseyi on rice: population dynamics and grain yield reductions


Citation

Latif, Mohammad Abdul and Haque, Ahsanul and Tajul, Mohammad Islam and Monsur, Mohammad Abul and Yusop, Mohd Rafii (2013) Interactions between the nematodes Ditylenchus angustus and Aphelenchoides besseyi on rice: population dynamics and grain yield reductions. Phytopathologia Mediterranea, 52 (3). pp. 490-500. ISSN 0031-9465; ESSN: 1593-2095

Abstract

Experiments were conducted in pots and an irrigated rice (Oryza sativa) field to determine the impact of mixed or single nematode inoculations with Aphelenchoides besseyi and Ditylenchus angustus on nematode population dynamics and yield attributes of rice cv. BR3. The reproduction rates were greater in a single nematode species inoculated with either A. besseyi or D. angustus compared to their mixed inoculation. This was probably due to competition between the two nematode species. Greater incidences of white-tip and ufra diseases were observed with single nematode species inoculations compared to mixed species inoculations. Total yield losses ranged from 24 to 47% from mixed inoculations (different ratios) of D. angustus and A. besseyi, compared to 62% from inoculation with D. angustus and 16% from A. besseyi. Single species inoculations (with either D. angustus or A. besseyi) gave greater disease incidence and greater yield reductions than mixed inoculations with both nematodes.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Institute of Tropical Agriculture
Publisher: Firenze University Press
Keywords: Competition; Incidence; Mixed inoculation; Ufra disease; White-tip
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 25 Apr 2016 04:42
Last Modified: 25 Apr 2016 04:42
URI: http://psasir.upm.edu.my/id/eprint/29270
Statistic Details: View Download Statistic

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