International Journal of Tropical Insect Science

, Volume 5, Issue 6, pp 475–479 | Cite as

Development of Stable Resistant Cultivars for Stem-Borer, Chilo Partellus (Swinhoe) in Sorghum

  • Prem Kishore
Research Article


Twelve cultivars 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.

Key Words

Stem-borer Chilo partellus (Swinhoe) host plant resistance leaf injury stem tunnelling cultivar stable stability of resistance stability analysis cultivar-environment interaction 


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Copyright information

© ICIPE 1984

Authors and Affiliations

  • Prem Kishore
    • 1
  1. 1.Division of EntomologyIndian Agricultural Research InstituteNew DelhiIndia

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