000			02911nam a22004577a 4500
001			G81248
003			MX-TxCIM
005			20211006084800.0
008			121211s ||||f| 0 p|p||0|| |
020			_a970-648-116-8
040			_aMX-TxCIM
072		0	_aF01
072		0	_aH20
090			_aLook under series title
100	1		_aLapbanjob, S. _uAsian Regional Maize Workshop, 8: New Technologies for the New Millennium
110	0		_aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico, DF (Mexico)
111	2		_aProceedings of the Asian Regional Maize Workshop _cBangkok (Thailand) _d5-8 Aug 2002
245	0	0	_aMating type, cultural characteristic, and virulence of Bipolaris maydis in Thailand
260			_aMexico, DF (Mexico) _bCIMMYT : _c2004
300			_ap. 441-450
340			_aPrinted
520			_aSurvey and collecting of the fungus Bipolaris maydis, the causal agent of southern corn leaf blight (SCLB), were conducted in 26 maize growing areas throughout 19 provinces in 1999-2000 and were used for studying mating type, cultural characteristics, and virulence. The results suggested that SCLB has been found in almost all maize growing areas. Pure cultures of 118 isolates were collected and were assessed for morphological and cultural characteristics on potato dextrose agar (PDA). The results showed variation among 118 isolates in colony colour, uniformity of colony colour, aerial mycelium growth, and the zonation of colour and mycelium. Mycelial growth rate of 39 selected isolates of Bipolaris maydis was significantly different after growing the fungus on PDA. One hundred and eighteen isolates of Bipolaris maydis were investigated for mating type on modified Sachs' medium (in vitro). Fifty isolates were classified to mating type Ml-1 and 68 isolates were mating type Ml-2, accounted for 42.37 and 57.63%, respectively. Pairing of opposite mating type was done on maize plants (in vivo) and the result indicated that sexual reproduction has not been found. Twenty-one representative isolates were selected and evaluated for virulence on 22 inbred lines of maize. Significant difference was found among tested isolates and they showed no identical virulent patterns among them.
546			_aEnglish
591			_a0502|AGRIS 0501|AL-Maize Program
593			_aJuan Carlos Mendieta
595			_aCPC
650	1	0	_aBipolaris maydis
650	1	0	_aCochliobolus heterostrophus
650	1	0	_aInfectious diseases
650	1	7	_aMaize _gAGROVOC _2 _91173
650	1	7	_aPlant diseases _gAGROVOC _2 _91206
650	1	0	_92129 _aVirulence _gAGROVOC
650	1	0	_aYield factors
653	0		_aCIMMYT
650	1	0	_91151 _aHybrids _gAGROVOC
700	1		_aManupeerapan, T., _ecoaut.
700	1		_aPo-ngam, P., _ecoaut.
700	1		_aSinghburaudom, N., _ecoaut.
700	1		_aSrinivasan, G.|Zaidi, P.H.|Prasanna, B.M.|Gonzalez, F.|Lesnick, K. _eeds.
942			_cPRO
999			_c7479 _d7479