Inheritance of shoot fly and earhead midge fly resistance in sorghum

Patil, R.C. and Thombre, M.V. (1985) Inheritance of shoot fly and earhead midge fly resistance in sorghum. Current Research Reporter, 1 (1). pp. 44-48.

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Analysis of data from a 9 X 9 diallel, involving parents with different degrees of resistance to the pests, revealed that (1) additive genetic variance was significant and greater than nonadditive genetic variance for both Atherigona soccata and Contarinia sorghicola, (2) general combining ability variances were greater than specific combining ability (SCA) variances for both pests, (3) recessive genes conditioned susceptibility to A. soccata while dominant genes conditioned susceptibility to C. sorghicola, (4) desirable general combiners did not exhibit good SCA effects, (5) narrow-sense heritability for resistance was low for both pests, and (6) the cross S Girl MR1 X IS6394 showed the desired SCA effects for both pests and yielded c. 30% more than the best control, CSH8R

Item Type: Article
Author Affiliation: Agricultural Research Station, Mohol, India
Subjects: Plant Protection > Pesticides
Plant Protection > Pests
Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 31 May 2012 05:45
Last Modified: 31 May 2012 05:45

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