| 000 | 03227nab a22004817a 4500 | ||
|---|---|---|---|
| 999 |
_c17108 _d17108 |
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| 001 | G57776 | ||
| 003 | MX-TxCIM | ||
| 005 | 20240919021133.0 | ||
| 008 | 210902s1995 xxu|||p|op||| 00| 0 eng d | ||
| 022 | _a0191-2917 | ||
| 024 | 8 | _ahttps://doi.org/10.1094/PD-79-0238 | |
| 040 | _aMX-TxCIM | ||
| 041 | 0 | _aeng | |
| 043 | _aUS | ||
| 072 | 0 | _aF30 | |
| 072 | 0 | _aH20 | |
| 090 | _aCIS-2615 | ||
| 100 | 1 |
_aSingh, R.P. _gGlobal Wheat Program _8INT0610 _9825 |
|
| 245 | 1 | 0 | _aGenetic analysis of resistance to scab in spring wheat cultivar Frontana |
| 260 |
_aSt. Paul, MN (USA) : _bAPS, _c1995. |
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| 340 | _aPrinted Computer File | ||
| 500 | _aPeer review | ||
| 500 | _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0191-2917 | ||
| 520 | _aThe Brazilian spring wheat (Triticum aestivum) cv. Frontana is resistant to scab (caused by Fusarium graminearum) in Mexico and various other countries. The number of genes involved in resistance to this disease was estimated. This was done by evaluating random inbred F6 lines and their parents for scab resistance. The lines were derived from crosses of Frontana with susceptible, or moderately susceptible, cvs. Inia 66, Opata 85, and Pavon 76. These evaluations took place in the field with a mixture of Mexican isolates of F. graminearum. Spikes were inoculated by placing a tiny tuft of cotton soaked with the inoculum in the middle spikelet close to the anthers just prior to anthesis. Glassine bags were placed over the inoculated spikes. These spikes were harvested 45 days after inoculation. Scab severity was determined by recording the number of infected and healthy spikelets. Analyses of variance showed significant differences in scab severities of the F6 lines. The distribution of F6 lines was continuous in each cross. The narrow-sense heritability estimates for the crosses evaluated during 1991 and 1993 were 0.66 and 0.93, respectively. Both quantitative and qualitative models were applied to estimate the number of segregating genes. The resistance of Frontana is controlled by the additive interaction of a minimum of three minor genes. Transgressive segregants were identified in each cross, indicating that the susceptible (or moderately susceptible) parents also carry one (or two) minor genes. The combinations of these genes with the genes in Frontana have given F6 lines with significantly better scab resistance than that of Frontana. | ||
| 536 | _aGlobal Wheat Program | ||
| 546 | _aText in English | ||
| 591 | _aWP|R95ANALY|3 | ||
| 594 | _aINT0610 | ||
| 650 | 1 | 7 |
_aDisease resistance _gAGROVOC _2 _91077 |
| 650 | 1 | 0 |
_aFusarium _92705 |
| 650 | 1 | 0 |
_aHighlands _91148 |
| 650 | 1 | 0 |
_aMexico _946 |
| 650 | 1 | 7 |
_aPlant diseases _gAGROVOC _2 _91206 |
| 650 | 1 | 0 | _aScabs |
| 650 | 1 | 0 |
_aSpring crops _91275 |
| 650 | 1 | 0 |
_91296 _aTriticum aestivum |
| 650 | 1 | 7 |
_aPlant breeding _gAGROVOC _2 _91203 |
| 700 | 0 |
_aHong Ma _922745 |
|
| 700 | 1 |
_9661 _aRajaram, S. |
|
| 773 | 0 |
_tPlant Disease _n649213 _gv. 79, no. 3, p. 238-240 _dSt. Paul, MN (USA) : APS, 1995. _wG444690 _x0191-2917 |
|
| 856 | 4 |
_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/1396 |
|
| 942 |
_cJA _2ddc _n0 |
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