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Screening of Shoot Fly Resistance in M5 Generation of Sorghum (Sorghum bicolor (L.) Moench)

Author: Khaja Mohinuddin D., G. Girish, M.B. Ashok, Suvarna, L.N. Yogeesh, M.R. Govindappa, Anand Kumar V. and Ravi Kumar A.

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Abstract

The present investigation was carried to screen 200 mutant lines against shoot fly incidence in augmented block design at Agricultural Research Station, Hagari. In sorghum production shoot fly incidence is the major biotic constraints, which attacks crop at the seedling stage and causes losses of yield and fodder. The screening results revealed that 32 mutant lines shown highly resistance reaction compared to resistant check IS-2312 (14.29), among them six mutant lines showed zero percentage of dead heart per cent. These mutant lines exhibited comparatively lower number of eggs per plant and minimum dead heart formation. 8 mutant lines shown highly resistance response to seedling vigour and 6 mutant lines shown highly resistance to glossiness score traits. In order to attain uniform shoot fly pressure under field conditions the interlard-fish meal technique was followed for present experiment. These resistant lines can be used for further confirmation and also for future resistant breeding programmes.

Keywords

Dead heart, Oviposition, Shoot fly, Sorghum

Conclusion

The present experiment was conducted to identify mutant lines, which were resistant to shoot fly attack. Study revealed that among 200 mutant lines six lines viz., PV-RD-33, PV-RD-30, PV-RD-29, PV-RD-41, PV-RD-13 and PV-9 showed resistant to shoot fly component characters viz., oviposition, dead heart, glossiness and seedling vigour compared to resistant check IS-2312 (Resistance) under interland fish-meal technique conditions. These six mutant lines were promising lines to reduce shoot fly infestation, so these lines can be used for further confirmation and future tolerance breeding programs.

References

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How to cite this article

Khaja Mohinuddin D., G. Girish, M.B. Ashok, Suvarna, L.N. Yogeesh, M.R. Govindappa, Anand Kumar V. and Ravi Kumar A. (2022). Screening of Shoot Fly Resistance in M5 Generation of Sorghum (Sorghum bicolor (L.) Moench). Biological Forum – An International Journal, 14(4): 47-54.