Prem, K. (2005) Breeding for resistance to shoot fly, Atherigona soccata Rondani and stem borer, Chilo partellus (Swinhoe) in sorghum. Journal of Entomological Research, 29 (1). pp. 1-8.
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Abstract
The varietal approach to increase production and combat insect attack appeared to be a futile exercise in sorghum. The obvious choice was to shift to hybrid development with the sole aim to exploit hybrid vigour but there too the situation is not very encouraging except the performance of a few hybrids CSH 9, CSH 12R, etc. Others belied the hope and did not show promise. Perhaps, the level of resistance transferred in these genotypes was unable to cope up the intensity of insect attack specially when sorghum plant is attacked by a number of key pests at different growth stages. The situation became even more worse due to overlapping generations of these pests. In addition, resistant × resistant, and resistant × susceptible crosses did not exhibit an improvement over parents indicating no diversity among resistant lines. All these shortcomings suggested the futility of single cross (temperate × tropical) approach and opened new avenue to develop a different strategy to meet the ensuing challenge through which improvement in level of resistance to shoot fly and stem borer was possible which included crossing intermediate × intermediate resistant crosses and subsequently selecting the resistant lines using pedigree method
| Item Type: | Article |
|---|---|
| Author Affiliation: | Division of Entomology, Indian Agricultural Research Institute, New Delhi - 110 012, India |
| Subjects: | Plant Protection Crop Improvement > Genetics/Genomics Crop Improvement > Plant Breeding |
| Divisions: | Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 30 Nov 2012 03:37 |
| Last Modified: | 30 Nov 2012 03:37 |
| Official URL: | http://indianjournals.com/ijor.aspx?target=ijor:je... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/8946 |
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