| 000 | 02969nam a22004457a 4500 | ||
|---|---|---|---|
| 001 | G66271 | ||
| 003 | MX-TxCIM | ||
| 005 | 20240919020940.0 | ||
| 008 | 121211s ||||f| 0 p|p||0|| | | ||
| 020 | _a970-648-001-3 | ||
| 040 | _aMX-TxCIM | ||
| 072 | 0 | _aH20 | |
| 082 | 0 | 4 |
_a633.1194 _bDUV |
| 110 | 2 | _aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico) | |
| 100 | 1 |
_9826 _aDuveiller, E. _gDG's Office _8INT1237 |
|
| 245 | 0 | 0 |
_aEvaluating spot blotch resistance of wheat: _b Improving disease assessment under controlled conditions and in the field |
| 260 |
_aMexico, DF (Mexico) _bCIMMYT|UCL|BADC : _c1998 |
||
| 340 | _aPrinted | ||
| 520 | _aStudies were conducted on spot blotch resistance of wheat at these edling stage. Results showed that plants inoculated with Bipolaris sorokiniana, causal agent of spot blotch, should be exposed to conditions of 25ºC and 100% relative humidity (RH)for 24 h and then incubated at 24ºC and 85% RH for 144 h to allow the detection of statistically significant differences in resistance between genotypes. Among the components of resistance studied, lesion density was difficult to assess. Standardization of experimental conditions was critical for the correct appraisal of genetic resistance at the seedling stage and differences between genotypes tended to be obscured as a result of high data variation. In the field, comparison of AUDPC (area under disease progress curve) was the best approach to separate genotypes based on disease scores repeated over time. Differences in spot blotch resistance observed among genotypes in Poza Rica, Mexico, were generally in agreement with data observed elsewhere; however, the relationship between disease severity, yield loss, plant size, and earliness appeared to be complex. Due to high disease pressure, early genotypes such as NL297, harboring some level of spot blotch resistance, appeared susceptible. Studies on spot blotch resistance under climatic conditions more favorable for the wheat crop are needed in order to detect moderate resistance levels and to better assess the effect of disease on yield. | ||
| 536 | _aGenetic Resources Program|Research and Partnership Program | ||
| 546 | _aEnglish | ||
| 591 | _a9806|AGRIS 9802|anterior|R97-98PROCE|FINAL9798 | ||
| 593 | _aJose Juan Caballero | ||
| 594 | _aINT1237|CCJL01 | ||
| 595 | _aCPC | ||
| 650 | 1 | 0 |
_aBlotches _92694 |
| 650 | 1 | 7 |
_aDisease resistance _gAGROVOC _2 _91077 |
| 650 | 1 | 0 | _aInoculation methods |
| 650 | 1 | 7 |
_aPlant diseases _gAGROVOC _2 _91206 |
| 650 | 1 | 0 | _aSpots |
| 653 | 0 | _aCIMMYT | |
| 650 | 1 | 7 |
_aTriticum _gAGROVOC _2 _91295 |
| 700 | 1 |
_aDuveiller, E.|Dubin, H.J.|Reeves, J.|McNab, A. _eeds. |
|
| 700 | 1 |
_aFranco, J. _8CFRN01 _gFormerly Genetic Resources Program _9494 |
|
| 700 | 1 |
_aGarcía A., I., _ecoaut. |
|
| 700 | 1 |
_aLópez F., F., _ecoaut. |
|
| 700 | 1 |
_aToledo B., J., _ecoaut. |
|
| 700 | 1 |
_aCrossa, J. _gGenetic Resources Program _8CCJL01 _959 |
|
| 942 | _cPRO | ||
| 999 |
_c3825 _d3825 |
||