Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-30T23:14:49.907Z Has data issue: false hasContentIssue false
  • English
  • Français

Incidence of Chilo zacconius Bleszynski on some rice varieties in relation to plant characters

Published online by Cambridge University Press:  19 September 2011

M. N. Ukwungwu  and
J. A. Odebiyi
M. N. Ukwungwu
Affiliation:
Department of Agricultural Biology, University of Ibadan, Ibadan, Nigeria
J. A. Odebiyi
Affiliation:
Department of Agricultural Biology, University of Ibadan, Ibadan, Nigeria
Get access

Abstract

Some morphological characters of the rice plant were found to be associated with resistance to the African striped borer, Chilo zacconius Bleszynski. A very low, but negative correlation was recorded between percentages of bored stems and plant height. Positive correlations were recorded between percentages of bored stems and stem diameters, stem thickness, length and width of flag leaves and number of tillers per plant. High silica content in rice plants appeared to be a strong factor in resistance to the striped borer. Negative correlations were recorded between percentages of crude silica content of the plants and percentages of bored stems and number of living larvae per plant. Although each of these factors appeared to contribute to borer resistance, none by itself could be said to be the main cause of such resistance, as some varieties did not conform to some of the characters.

Résumé

Une association entre certains caractères morphologiques chez le riz et la resistance des plants au perceur rayé africain, Chilo zacconius Bleszynski a été trouvé. Une correlation negative et moins élevée a été obtenue entre le pourcentage des tiges percées et la taille de plantes. Les pourcentages de tiges percées et la diamètre des tiges, l'épaisseur des tiges, la longueur, et la largeur des feuilles attachées aux panicules ainsi quelle nombre de talle par plante art révélé de correlations positives. La haute teneur en silice des plants apparait comme un facteur déterminant pour la resistance du riz au boreur africain à raies. La teneur en silica brute, les pourcentages de tiges percées et la nombre de larves rivantes par plant se sont négativement correlés. Aucum des facteurs morphologiques étudiés n'a joué un rôle primordial dans la résistance des variéties du riz.

Keywords

Rice varietiesChilo zacconiusresistancesilicaVariétés du rizChilo zacconiusrésistancesilice
Type
Articles
Information
International Journal of Tropical Insect Science , Volume 6 , Issue 6 , December 1985 , pp. 653 - 656
Copyright
Copyright © ICIPE 1985

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Djamin, A. and Pathak, M. D. (1967) Role of silica in resistance to Asiatic rice borer, Chilo suppressalis (Walker), in rice varieties. J. econ. Ent. 60, 347–351.CrossRefGoogle Scholar
Fernando, H. E. (1967) Insect pests of rice in Ceylon. In The Major Insect Pests of the Rice Plant. International Rice Research Institute, Philippines, 1964, pp. 575–589. Johns Hopkins, Baltimore.Google Scholar
Ghosh, B. N. (1960) A note on the resistance of boro paddy to stem borer infestation. Sei. Cult. 25, 547–549.Google Scholar
Israel, P., Vedamoorthy, G. and Rao, Y. S. (1959) Review of rice varieties showing resistance to pests. Report of the 8th Meeting of International Rice Commission Working Party on Production and Protection, Ceylon.Google Scholar
Koshiary, M. A., Pan, C. L., Hak, G. E., Zaid, I. S. A., Azizi, A., Hindi, C. and Masoud, M. (1957) A study on the resistance of rice to stem borer infestation. Int. Rice Commissn Newsl. 6, 23–25.Google Scholar
Matsuo, T. (1952) Genecological studies on cultivated rice. II. Varietial differences in damages by the rice stem borer. Bull. natn. Inst, agric. Sei. D 3, 30–39.Google Scholar
Nakano, K., Abe, G., Taketa, N. and Hirano, C. (1961) Silicon as an insect resistant component of host plant, found in the relation between the rice stem-borer and rice plant. Jap. J. appl. Ent. Zool. 5, 17–27.CrossRefGoogle Scholar
Painter, R. H. (1951) Insect Resistance in Crop Plants. Macmillan, New York.CrossRefGoogle Scholar
Patanakamjorn, S. and Pathak, M. D. (1967) Varietal resistance of rice to the Asiatic rice borer, Chilo suppressalis (Lepidoptera: Crambidae), and its association with various plant characters. Ann. ent. Soc. Am. 60, 287–292.CrossRefGoogle Scholar
Pawar, M. S., Reddy, V., Rajagopalan, K. and Suryanarayana Murthy, V. V. (1959) Scope for breeding rice varieties resistant to major pests. In Proceedings of the Rice Research Workers Conference, Cuttack, India, pp. 304–305.Google Scholar
Roy, J. K. and Israel, P. (1970) Mechanism of insect resistance, Technical Report, 1967. Central Rice Research Institute, Cuttack, India.Google Scholar
Sasamoto, K. (1961) Resistance of the rice plant applied with silicate and nitrogenous fertilizers to the rice stem-borer, Chilo suppressalis Walker. In Proceedings of the Faculty of Liberal Arts and Education, Vol. 3. Yamanasaki University, Japan.Google Scholar
Sikdar, H. P. (1965) Effect of fertilizer and height of plants on the incidence of stem borer (Schoenobius incertulas Wlk.) on Aman paddy and possible control measure suggested. Sei. Cult. 31, 553.Google Scholar
Ukwungwu, M. N. and Odebiyi, J. A. (1985) Resistance of some rice varieties to the African striped borer, Chilo zacconius (Bleszynski). Insect Sei. Applic. 6, 163–166.CrossRefGoogle Scholar
Wada, E. (1942) On some characteristics of rice varieties of southern Asia. Kagaku Sei. 12, 411–444.Google Scholar
Yoshida, S., Forno, D. A., Cock, J. H. and Gomez, K. A. (1972) Laboratory Manual for Physiological Studies of Rice, 3rd edn.IRRI, Philippines.Google Scholar