Inheritance of shoot fly resistance under three levels of infestation in sorghum

Borikar, S T and Chopde, P.R. (1982) Inheritance of shoot fly resistance under three levels of infestation in sorghum. Maydica, 25 (4). pp. 175-183.

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Abstract

In studies in India, a F1 diallel set was evaluated under 3 distinct levels of Atherigona soccata Rond. infestation. The results revealed that variation between and within genotypic groups become more apparent under a high fly population. The additive (D) genetic component was significant for the 2 characters considered in all 3 environments. In general, the magnitude of additive component, as compared to dominance component, increased with increase in fly population. Susceptibility to the fly appears to be recessive under a low insect population but exhibits dominance under a high population. Heritability for dead heart (%) and numbers of eggs per plant increased with increase in infestation. The heritability of resistance to A. soccata appeared to be about 15 to 25% under high to moderate levels of infestation

Item Type: Article
Author Affiliation: Botany Department, Marathwada Agricultural University, Parbhani 431402, India
Subjects: Plant Protection > Pests
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 16 Mar 2012 06:04
Last Modified: 16 Mar 2012 06:05
URI: http://eprints.icrisat.ac.in/id/eprint/3907

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