Multiple-resistance to sorghum shoot fly, spotted stemborer and sugarcane aphid in sorghum

Sharma, H C and Dhillon, M K and Pampapathy, G (2006) Multiple-resistance to sorghum shoot fly, spotted stemborer and sugarcane aphid in sorghum. International Journal of Tropical Insect Science, 26 (4). pp. 239-245. ISSN 1742-7584

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Abstract

Sorghum is one of the most important cereal crops in the semi-arid tropics. Several insect pests damage it. The possibility of identifying genotypes with multiple resistance to these pests and transferring the relevant genes into high-yielding varieties and hybrids has been considered as an attractive approach to reducing yield losses. A set of 12 cytoplasmic male-sterile and maintainer lines, 12 restorer lines and their F1 hybrids were evaluated for resistance to sorghum shoot fly Atherigona soccata Rondani, spotted stemborer Chilo partellus (Swinhoe) and sugarcane aphid Melanaphis sacchari (Zehntner) under field conditions. There were significant differences among the genotypes tested. A total of 50% of male-sterile lines, 41.7% maintainers, 58.3% restorers and 35.4% of the hybrids tested showed moderate to high level of resistance to the three pests. The male-sterile and restorer lines showing resistance to different insects can be exploited for developing hybrids with multiple insect resistance for cultivation by the resource-poor farmers in the semi-arid tropics.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	sorghum, Atherigona soccata, Chilo partellus, Melanaphis sacchari, host plant resistance, mulitiple resistance
Subjects:	Mandate crops > Sorghum
Depositing User:	Mr Sanat Kumar Behera
Date Deposited:	09 Oct 2011 11:31
Last Modified:	09 Oct 2011 11:31
URI:	http://oar.icrisat.org/id/eprint/2117
Official URL:	http://dx.doi.org/10.1017/S1742758406409826
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	The authors thank the staff of entomology at ICRISAT, Messrs V. Venkateshwara Rao, J. Raja Rao, Madhusudhan Reddy, K. Hareendranath, S.V.N. Chandra and Mrs P. Ponnamma and B. Vimala for their help in observations, and Dr Belum V.S. Reddy for providing the seeds of some of the CMS and maintainer lines.
Links:	Author

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