000 02737nam a22004817a 4500
001 G66403
003 MX-TxCIM
005 20240919021051.0
008 121211s ||||f| 0 p|p||0|| |
020 _a968-6923-94-2
040 _aMX-TxCIM
072 0 _aF30
072 0 _aH20
082 0 4 _a632.4
_bDUB
100 1 _aKlechkovskaya,H.A.
_uFusarium Head Scab: Global Status and Future Prospects; Proceedings of a Workshop; El Batan, Mexico; 13-17 Oct 1996
110 2 _aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
245 0 0 _aControl of fusarium scab:
_b Biochemical, genetic, and ecological mechanisms
260 _aMexico, DF (Mexico)
_bCIMMYT :
_c1997
340 _aPrinted
520 _aThe Fusarium spp. population is not homogeneous in southwestern Ukraine. Fungi with high pathogenicity account for 20% of the population. Pathogenic strains of Fusarium spp. show mainly high levels of xylanase activity. It was observed that high general hydrolase activity in an infected plant correlates with resistance to Fusarium infection. Resistant wheat varieties were also characterized by an abundance of fructose at sites of pathogen penetration. It was observed that resistant plants infected by Fusarium spp. actually neutralize the high proteolytic activity of the parasite by increasing their trypsin inhibitor content. Methods of transgressive and intravarietal selection of resistant wheat varieties were most productive. Intravarietal composition played the key role in variety resistance and tolerance. The susceptible:resistant:mycotrophic lines ratio of the resistant variety corresponds to the high- pathogenic:middle-pathogenic:nonpathogenic strains ratio of the Fusarium spp. population in the cultivated region. Only varieties that include lines with the whole possible spectrum of reactions to contrasting Fusarium strains can provide agrocenosis stability.
546 _aEnglish
591 _a9806|AGRIS 9802
593 _aJose Juan Caballero
595 _aCPC
650 1 0 _aClimatic factors
_91048
650 1 0 _aDisease control
650 1 0 _aFusarium
_92705
650 1 7 _aGenetic variation
_gAGROVOC
_2
_91129
650 1 0 _aPathogens
_91197
650 1 7 _aPlant diseases
_gAGROVOC
_2
_91206
653 0 _aCIMMYT
650 1 7 _aTriticum
_gAGROVOC
_2
_91295
650 1 7 _aPlant breeding
_gAGROVOC
_2
_91203
700 1 _aAdamovskaya, V.G.,
_ecoaut.
700 1 _aDubin, H.J.|Gilchrist, L.|Reeves, J.|McNab, A.
_eeds.
700 1 _aIgnatova, S.A.,
_ecoaut.
700 1 _aKarpuk, Y.N.,
_ecoaut.
700 1 _aKhokhlov, A.N.,
_ecoaut.
700 1 _aLitvinenko, N.A.,
_ecoaut.
700 1 _aMakhnovskaya, M.L.,
_ecoaut.
700 1 _aWolf, G.A.,
_ecoaut.
942 _cPRO
999 _c3884
_d3884