Correlation studies for shootfly resistance traits in sorghum (Sorghum bicolor (L.) Moench)

Gomashe, S. and Misal, M.B. and Ganapathy, K.N. and Rakshit, S. (2010) Correlation studies for shootfly resistance traits in sorghum (Sorghum bicolor (L.) Moench). Electronic Journal of Plant Breeding, 1 (4). pp. 899-902.

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A field experiment was conducted to study the relation of different plant characters and shoot fly resistance in sorghum. Leaf glossiness showed high positive correlation with shootfly oviposition and dead hearts. The oviposition percentage on 14th and 21st days after seedling emergence exhibited significant positive correlation with dead hearts. Leaf trichome density on adaxial and abaxial leaf surfaces showed significant negative correlation with shootfly dead hearts. The leaf trichome density revealed higher magnitude for resistance due to non-preference for oviposition. Seedling vigour recorded weaker association with dead heart percentage. Genotypic correlation confirmed that the number of trichomes on both surfaces of lamina and leaf glossiness contributed resistance to shoot fly. Thus these characters can be used as selection criteria for breeding shootfly resistance genotypes.

Item Type: Article
Author Affiliation: Department of Agricultural Botany, Marathwada Agricultural University, Parbhani 431 402, India.
Subjects: Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Sorghum
Depositing User: Mr T L Gautham
Date Deposited: 21 Oct 2010 06:10
Last Modified: 21 Oct 2010 06:10
Official URL: http://7163212528993603940-a-1802744773732722657

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