Resistance to the Sorghum Midge in Converted Exotic Sorghum Cultivars<sup>1</sup>

Johnson, J. W.; Rosenow, D. T.; Teetes, G. L.

doi:10.2135/cropsci1973.0011183x001300060051x

Cited by 42 publications

(23 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similar methods have been used by Wiseman etal. (1966) to study the resistance of com to corn earworm, Heliothis zea (Boddie), and by Hormchong (1967) and Johnson et al (1973) to evaluate the resistance of sorghum to sorghum midge, Contarinia sorghicola Coq.…”

Section: Resultsmentioning

confidence: 99%

“…Damage rating scales are often used in host plant resistance studies (Hormchong, 1967;Johnson et al, 1973). In the current study the severity of damage was recorded using a rating scale of 0-9 (1 *= <5%, 2 = >5-<10, 3 = >10-<20, 4 = >20-<30, 5 = >30-<60, 6 = >60-<70, 7 = >70-<80, 9 = >90% loss of seed; Johnson et al, 1973). The HDR assessment for each variety was made at 35 days after the completion of flowering, by which time the kernels had reached physiological maturity.…”

Section: Sorghum Entries and Resistance To Hellcoverpa Armigera Hühnermentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of sorghum entries for resistance toHelicoverpa armigeraHübner (Lepidoptera: Noctuidae) under natural field conditions

Azrag

Seifelnasr²,

Cooter

1993

International Journal of Pest Management

View full text Add to dashboard Cite

The relative resistance of 71 sorghum, Sorghum bicolor (L) Moench entries to the American bollworm, Helicoverpa armigera (Hüb.) (Lepidoptera: Noctuidae) was evaluated under natural field infestation condition in two locations in the eastern Sudan. The number of larvae per five heads (HL/5 heads) and the magnitude of damage (HOR), measured on a rating scale of 0-9, were used to measure resistance. The grand mean for the 71 entries was 7.80 and 1.95 in the first location, and 2.45 and 1.96 in the second location for HL/5 heads and HDR, respectively. The entries Tetron, Zanebelshah, P.988*, Silca and Trokash were the least susceptible to H. armigera expressed as lowest larval counts and lowest damage ratings across both trials. The entries IS.7349*, Feterita Iriana, Super Feterita, Culum, Wadelfahel, Fererita Bafta. Wad Yabis, White Aker and IS.7271* were the next most resistant as measured by the same parameters. None of these 14 entries, of which 11 were indigenous and three exotic, had mean HL/5 heads higher than 4.50 (<1 larva per head) or mean HDR of more than 1.0 in either trial.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Sorghum Entries and Resistance To Hellcoverpa Armigera Hühnermentioning

confidence: 99%

Evaluation of sorghum entries for resistance toHelicoverpa armigeraHübner (Lepidoptera: Noctuidae) under natural field conditions

Azrag

Seifelnasr²,

Cooter

1993

International Journal of Pest Management

View full text Add to dashboard Cite

show abstract

“…Line ICSV 745 was developed in ICRISAT (International Crop Research Institute for the Semi-Arid Tropics) and is believed to carry gene(s) of antibiosis to sorghum midge (Sharma et al 1993), while another parental line 90562 was developed by the Queensland Department of Primary Industries and is known to carry gene(s) for antixenosis (Henzell, unpublished). Line 90562 has the following midge resistance source lines in its pedigree: TAM2566 (Johnson et al 1973) and AF28 (Rossetto et al 1975). Line ICSV745 derives its antibiosis from DJ6514 (Shyamsunder et al 1975).…”

Section: Genetic Stocksmentioning

confidence: 99%

“…Prior to the introduction of resistant varieties, the pest cost Australian sorghum producers an estimated $8-10 million per year in chemical control and loss of grain yield (Henzell et al 1994). Early breeding for host-plant resistance to the sorghum midge and associated entomological research brought reports of worthwhile resistance in sorghum (Johnson et al 1973;Wiseman et al 1973;Rossetto et al 1975).…”

Section: Introductionmentioning

confidence: 99%

Identifications of two different mechanisms for sorghum midge resistance through QTL mapping

Tao¹,

Hardy

Drenth

et al. 2003

Theor Appl Genet

View full text Add to dashboard Cite

Sorghum midge is the one of the most damaging insect pests of grain sorghum production worldwide. At least three different mechanisms are involved in midge resistance. The genetic bases of these mechanisms, however, are poorly understood. In this study, for the first time, quantitative trait loci associated with two of the mechanisms of midge resistance, antixenosis and antibiosis, were identified in an RI (recombinant inbred) population from the cross of sorghum lines ICSV745 x 90562. Two genetic regions located on separate linkage groups were found to be associated with antixenosis and explained 12% and 15%, respectively, of the total variation in egg numbers/spikelet laid in a cage experiment. One region was significantly associated with antibiosis and explained 34.5% of the variation of the difference of egg and pupal counts in the RI population. The identification of genes for different mechanisms of midge resistance will be particularly useful for exploring new sources of midge resistance and for gene pyramiding of different mechanisms for increased security in sorghum breeding through marker-assisted selection.

show abstract

“…Considerable progress has been made in screening and breeding for resistance to this insect (Johnson et al, 1973;Wiseman et al, 1973Wiseman et al, , 1988Peterson et al, 1988;Sharma et al, 1993). Efforts have also been made to transfer midge-resistance into male-sterile lines based on the milo cytoplasmic male sterility system .…”

Section: Introductionmentioning

confidence: 99%

Effect of cytoplasmic male-sterility in sorghum on host plant interaction with sorghum midge, Contarinia sorghicola

et al. 1993

View full text Add to dashboard Cite

Sorghum midge, Contarinia sorghicola Coq. (Diptera: Cecidomyiidae) is one of the most important pests of grain sorghum worldwide. We studied the reaction of midge-resistant and midge-susceptible genic-cytoplasmic malesterile (A-lines) and their maintainers (B-lines), and the effect of resistant and susceptible restorers on sorghum midge. Midge damage and adult emergence were significantly lower on the B-lines of midge-resistant genotypes (PM 7061 and PM 7068) than their corresponding A-lines, while the reverse was true for the midge-susceptible genotypes (296A and ICSA 42). Differences in midge damage and the number of midges emerged were not significant between the midge-resistant and midge-susceptible A-lines when infested without pollination (except midge emergence on PM 7061A). Pollination with a midge-resistant restorer (DJ 6514) reduced midge emergence significantly in one of two seasons. Source of pollen did not influence midge emergence on the highly-resistant A-line, PM 7061A. The implications of these observations in the development of midge-resistant hybrids were discussed.

show abstract

Resistance to the Sorghum Midge in Converted Exotic Sorghum Cultivars¹

Cited by 42 publications

References 0 publications

Evaluation of sorghum entries for resistance toHelicoverpa armigeraHübner (Lepidoptera: Noctuidae) under natural field conditions

Evaluation of sorghum entries for resistance toHelicoverpa armigeraHübner (Lepidoptera: Noctuidae) under natural field conditions

Identifications of two different mechanisms for sorghum midge resistance through QTL mapping

Effect of cytoplasmic male-sterility in sorghum on host plant interaction with sorghum midge, Contarinia sorghicola

Contact Info

Product

Resources

About

Resistance to the Sorghum Midge in Converted Exotic Sorghum Cultivars1

Cited by 42 publications

References 0 publications

Evaluation of sorghum entries for resistance toHelicoverpa armigeraHübner (Lepidoptera: Noctuidae) under natural field conditions

Evaluation of sorghum entries for resistance toHelicoverpa armigeraHübner (Lepidoptera: Noctuidae) under natural field conditions

Identifications of two different mechanisms for sorghum midge resistance through QTL mapping

Effect of cytoplasmic male-sterility in sorghum on host plant interaction with sorghum midge, Contarinia sorghicola

Contact Info

Product

Resources

About

Resistance to the Sorghum Midge in Converted Exotic Sorghum Cultivars¹