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040 _aMX-TxCIM
090 _aLook
_bunder journal title
100 1 _aMa, H.
245 0 0 _aResistance to stripe rust in five wheat cultivars
260 _c1997
340 _aPrinted
500 _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0191-2917
520 _aDurum wheat (Triticum turgidum) cultivars developed by the International Maize and Wheat Improvement Center (CIMMYT) are currently grown on more than 8 million hectares worldwide. Because of the lack of information on the genetic basis of resistance to stripe rust (caused by Puccinia striiformis), crosses in a diallel arrangement (without reciprocals) were made among five worldwide resistant cultivars and the susceptible cultivar Local Red. Inheritance of resistance was investigated in seedling and adult plant growth stages of F-2 populations, and F-3 lines. The low seedling infection type of each resistant cultivar, namely Kroub 76, Chonta Inia, Sna 3, Syros, and Arena, was based on the additive action of the same two genes. Each of these genes conferred intermediate infection types when present alone. The field resistance of the cultivars was based on the additive action of the two genes identified in the seedlings and one additional, partially effective adult resistance gene. Segregation for plants with stripe rust severities higher than that of the parents in intercrosses of resistant cultivars indicated that some genetic diversity exists for adult genes. The resistance of these cultivars may prove to be longlasting, since it results from the combined action of at least three genes.
536 _aGlobal Wheat Program
546 _aEnglish
591 _a9801|EE|R97-98ANALY|MRia|anterior|Fdo|FINAL9798|1
594 _aINT0610
595 _aCSC
595 _aSC
650 1 7 _aDisease resistance
_gAGROVOC
_2
_91077
650 1 0 _aFungal diseases
_gAGROVOC
_91539
650 1 0 _aMexico
650 1 7 _aPlant diseases
_gAGROVOC
_2
_91206
650 1 0 _aResearch projects
_91237
650 1 7 _aRusts
_gAGROVOC
_2
_91251
650 1 0 _aTriticum durum
_91297
653 0 _aCIMMYT
650 1 0 _91142
_aHard wheat
_gAGROVOC
650 1 7 _aWheat
_gAGROVOC
_2
_91310
650 1 7 _aPlant breeding
_gAGROVOC
_2
_91203
700 1 _aAbdalla, O.S.,
_ecoaut.
700 1 _aSingh, R.P.
_gGlobal Wheat Program
_8INT0610
_9825
773 0 _tPlant Disease
_gv. 81, no. 1, p. 27-30
942 _cJA
999 _c18553
_d18553