Effect of cytoplasmic male-sterility in sorghum on host plant interaction with sorghum midge, Contarinia sorghicola

Sharma, H C and Vidyasagar, P and Abraham, C V and Nwanze, K F (1994) Effect of cytoplasmic male-sterility in sorghum on host plant interaction with sorghum midge, Contarinia sorghicola. Euphytica, 74 (1-2). pp. 35-39. ISSN 0014-2336

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Abstract

Sorghum midge, Contarinia sorghicola Coq. (Diptera: Cecidomyiidae) is one of the most important pests of grain sorghum worldwide. We studied the reaction of midge-resistant and midge-susceptible genic-cytoplasmic male-sterile (A-lines) and their maintainers (B-lines), and the effect of resistant and susceptible restorers on sorghum midge. Midge damage and adult emergence were significantly lower on the B-lines of midge-resistant genotypes (PM 7061 and PM 7068) than their corresponding A-lines, while the reverse was true for the midge-susceptible genotypes (296A and ICSA 42). Differences in midge damage and the number of midges emerged were not significant between the midge-resistant and midge-susceptible A-lines when infested without pollination (except midge emergence on PM 7061A). Pollination with a midge-resistant restorer (DJ6541) reduced midge emergence significantly in one of two seasons. Source of pollen did not influence midge emergence on the highly-resistant A-line, PM 7061A. The implications of these observations in the development of midge-resistant hybrids were discussed.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Subjects:	Mandate crops > Sorghum
Depositing User:	Mr Charan Sai Ch
Date Deposited:	06 Dec 2011 15:15
Last Modified:	06 Dec 2011 15:15
URI:	http://oar.icrisat.org/id/eprint/3231
Official URL:	http://dx.doi.org/10.1007/BF00033764
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Author

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