Mechanisms and diversity of resistance to shoot fly, Atherigona soccata in Sorghum bicolor

Kumar, C S and Sharma, H C and Narasu, M L and Pampapathy, G (2008) Mechanisms and diversity of resistance to shoot fly, Atherigona soccata in Sorghum bicolor. Indian Journal of Plant Protection, 36 (2). pp. 249-256. ISSN 0253-4355

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The reaction of 15 sorghum genotypes to A. soccata was evaluated in terms of antixenosis for oviposition, antibiosis, and recovery resistance under greenhouse and field conditions in Patancheru, Andhra Pradesh, India, during 2004 and 2005 to identify genotypes with stable resistance to the insect. Antixenosis for oviposition was observed under multi- and dual-choice conditions in IS 1054, IS 1057, IS 2146, IS 4664, IS 2312, IS 2205, SFCR 125, SFCR 151, ICSV 700 and IS 18551. However, antixenosis for oviposition was not apparent under no-choice conditions. Antibiosis (expressed in terms of prolonged larval and pupal development, and/or larval and pupal mortality) was observed in IS 2146, IS 4664, IS 2312, SFRC 125, ICSV 700 and IS 18551. IS 1054, IS 1057, IS 2146, IS 2205 and IS 4664 showed lower percentages of tiller deadhearts than the susceptible control, Swarna. IS 2312, SFCR 125, SFCR 151, ICSV 700 and IS 18551, which exhibited antixenosis, antibiosis and tolerance components of resistance, may be used in sorghum improvement programmes to develop sorghum cultivars with resistance to this pest. Genotypes with diverse combination of characteristics associated with resistance to sorghum shoot fly can be used in breeding programmes to broaden the genetic base and increase the levels of resistance to this pest.

Item Type: Article
Uncontrolled Keywords: Sorghum bicolor,Sorghum shoot fly, atherigona soccata, Resistance Mechanisms, antixenosis, antibiosis,recovery resistance.
Subjects: Mandate crops > Sorghum
Depositing User: Mr Sanat Kumar Behera
Date Deposited: 09 Oct 2011 10:41
Last Modified: 09 Oct 2011 10:41
Official URL:
Funders: Suri Sehgal Foundation
Acknowledgement: The authors are grateful to Dr. Bu Sngh, Principal Scintist National Research Center for Sorghum(NRCS), Rajendranagar, Hydrabad, Andhra Pradesh, India for his critical comments on the manuscripts and Dr. M K Dhillon for elp in planning the experiments. The authors are also thankful to ICRISAT Entomology staff , Messer's Peter M Vijaya, J Raja Rao, K Hareendranath, V Madhusudan Reddt, S V N Chandra, V Venkateshwara Rao, and Mrs Ponnama for their help in field and greenhouse experiments. We gratefully acknowledge the financial suport provided by the Suri Sehgal Foundation to carryout these studies.
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