Physio-morphological plant resistance in sorghum genotypes against earhead bugs

Kumar, D. and Bhanot, J.P. and Singh , S.P. (2013) Physio-morphological plant resistance in sorghum genotypes against earhead bugs. Annals of Biology, 29 (1). pp. 56-62.

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Abstract

Sorghum (Sorghum bicolor) is an important food, feed and fodder crop in India and the world. It is known for number of advantages which have made it the traditional staple cereal crop in subsistence or low-resource agriculture in the hot semi-arid regions. Morphological characters in 150 sorghum genotypes were observed and recorded at maturity in each genotype, five plants were selected randomly per repeat. Results concluded that morphological plant characters i. e. light coloured viz., straw, white and milky white coloured grain are more preferred by head bugs, whereas coloured/dark grains showed less preference. Colour in grain is largely due to the presence of tannin which acts as antifeedant biochemical constituent to the pest and its preference for food. Loose panicle type earheads were less (0.0 bugs/five panicles) preferred as compared to semi-compact (12.89 bugs/five panicles) and compact (15.50 bugs/five panicles) type of panicle by earhead bugs. Presence of tan coloured glumes in sorghum panicles was less preferred by earhead bugs

Item Type: Article
Uncontrolled Keywords: sorghum, earhrad bugs, resistance, physio-morphological characters
Author Affiliation: Department of Entomology, CCS Haryana Agricultural University, Hisar - 125 004, Haryana, India.
Subjects: Plant Protection
Crop Improvement
Divisions: Sorghum
Depositing User: Mr B Krishnamurthy
Date Deposited: 25 Jun 2013 12:51
Last Modified: 25 Jun 2013 12:51
URI: http://eprints.icrisat.ac.in/id/eprint/10751

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