Abstract：
The vertical migration of Aphelenchoides besseyi under different temperature and humidity conditions and in different rice growth stages were investigated. It was found that the optimum temperature for development and reproduction of A. besseyi was 25℃ to 30℃. At the same temperature, the rate of vertical migration increased with the rising relative humidity. Artificial inoculation tests showed that at the rice elongation stage, nematodes mainly survived on the upper and middle parts of rice stem, and the number decreased by 50% at 20 days after inoculation compared with that at 5 days after inoculation. Whereas at the rice booting stage, nematodes gathered in young panicle and reproduced quickly, and twenty days after inoculation the number was 3 times as many as that at 5 days after inoculation.
SUN Minjie,LIU Weihong,LIN Maosong. Effects of Temperature, Humidity and Different Growth Stages of Rice on the Vertical Migration of Aphelenchoides besseyi[J]. , 2009, 23(3): 304-308 .
[1]
McGawley E C, Rush M C, Hollis J P. Occurrence of Aphelenchoides besseyi in Louisiana rice seed and its interaction with Sclertium oryzae in selected cultivars. J Nematol, 1984, 16(1): 65-68.
[2]
Jagdale G B, Gerwal P S. Effectiveness of a hot water drench for the control of foliar nematodes, Aphelenchoides fragarize, in floriculture.J Nematol, 2004, 36: 49-53
[3]
Lin M S, Ding X F, Wang Z M, et al. Description of Aphelenchoides besseyi from abnormal rice with ‘small grains and erect panicles’ symptom in China. Rice Sci, 2004, 12(4): 289-294.
Salar J, Ebrahim P, Azizolah A, et al. Incidence and distribution of Aphelenchoides besseyi in rice areas in Iran. J Agric Tech, 2006, 2(2): 337-344.
[6]
Prot J C, Gergon E B. Nematodes//Mew T W, Misra J K. A Manual of Rice Seed Health Testing. Manila, Philippines: International Rice Research Institute, 1994: 47-48.
[7]
Ibrahim S K, Perry R N, Burrows P R, Hooper D J. Differentiation of species and populations of Aphelenchoides and of Ditylenchus angustus using a fragment of ribosomal DNA. J Nematol, 1994, 26(4): 412-421.
[8]
Peng Y L, Moens M. Host resistance and tolerance to migratory plantparasitic nematodes. Nematology, 2003, 5(2): 145-177.
[9]
Jagdale G B, Grewal P S. Infection behavior and overwintering survival of foliar nematodes, Aphelenchoides fragariae, on Hosta. J Nematol, 2006, 38(1): 130-136.
[10]
Tytgat T, Meutter J D, Gheysen G, Coomans A. Sedentary endoparasitic nematodes as a model for other plant parasitic nematodes. Nematology, 2000, 2(1): 113-121.
[11]
Adamo J A, Madamba C P, Chen T A. Vertical migration of the rice white tip nematode Aphelenchoides besseyi. J Nematol, 1976, 8(2): 146-152.
[12]
Togashi K, Hoshino S. Distribution pattern and mortality of the white tip nematode, Aphelenchoides besseyi (Nematoda: Aphelenchoididae), among rice seeds. Nematology, 2001, 3(1): 17-24.
[13]
Togashi K, Hoshino S. Tradeoff between dispersal and reproduction of a seedborne nematode, Aphelenchoides besseyi, parasitic on rice plants. Nematology, 2003, 5(6): 821-829.
[14]
刘维志. 植物病原线虫学.北京： 中国农业出版社， 2000： 6.[19] Ou S H. 水稻病害. 何家泌, 译. 北京: 农业出版社, 1981.
2009, Vol. 23 
