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Development of stable resistant cultivars for stem-borer, Chilo partellus (Swinhoe) in sorghum

Published online by Cambridge University Press:  19 September 2011

Prem Kishore
Prem Kishore
Affiliation:
Division of Entomology, Indian Agricultural Research Institute, New Delhi 110012, India
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Abstract

Twelve cultivares were grown along with released high yielding hybrid CSH-1 (susceptible to stem-borer) to investigate their relative resistance to stem-borer at three locations. Results obtained have established that the 12 cultivars possess moderate levels of resistance to stem-borer. The damage suffered by them was significantly lower than CSH-1. Further, four cultivars viz. E601, E 602, E 603 and E 604 suffered less damage.

The stability of the resistance was worked out by following the model of Eberhart and Russell (1966) [Crop Sci. 6, 36–40]. The means of various cultivars were calculated and regression coefficients (bi) were tested against unity to locate most adaptable cultivar for borer damage. The cultivar × environment interactions for leaf injury and stem tunnelling (two parameters used for assessing stem-borer damage) were significant and in most of the cases were due to linear response of different cultivars. Cultivar E 601 proved to be most promising and stable for resistance to stem-borer.

Keywords

Stem-borerChilo partellus (Swinhoe)host plant resistanceleaf injurystem tunnellingcultivarstablestability of resistancestability analysiscultivar-environment interaction
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 5 , Issue 6 , December 1984 , pp. 475 - 479
Copyright
Copyright © ICIPE 1984

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References

REFERENCES

Eberhart, S. A. and Russel, W. A. (1966) Stability parameters for comparing varieties. Crop Sci. 6, 36–40.CrossRefGoogle Scholar
Harris, K. M. (1962) Lepidopterous stem borers of cereals in Nigeria. Bull. ent. Res. 53, 139–171.CrossRefGoogle Scholar
Ingram, W. R. (1958) The lepidopterous stalk borers associated with Graminae in Uganda. Bull. ent. Res. 49, 367–383.CrossRefGoogle Scholar
Nye, I. W. B. (1960) The insect pests of Graminaceous crops in East Africa. Colonial Res. Study 31, London Colonial Office.Google Scholar