000			02899nab a22003737a 4500
001			G93313
003			MX-TxCIM
005			20230821190805.0
008			210930s2009 it |||p|op||| 00| 0 eng d
022			_a1125-4653
022			_a2239-7264 (Online)
040			_aMX-TxCIM
041			_aeng
090			_aCIS-5547
100	1		_aRosyara, U. _8I1707470 _94557 _gGlobal Wheat Program
245	1	0	_aField resistance to spot blotch is not associated with undesirable physio-morphological traits in three spring wheat populations
260			_aItaly : _bSpringer, _c2009.
500			_aPeer review
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=1125-4653
520			_aSpot blotch, caused by Cochliobolus sativus (Ito and Kurbayzshi) Drechsler ex Dastur is a serious constraint to production of wheat (Triticum aestivum L.) in tropical and sub-tropical environments. Previous efforts to develop genotypes with high levels of resistance combined with other desirable agronomic features have been unsuccessful. This failure was assumed to be largely due to the association of undesirable characters with heightened resistance but information on the existence of such associations is limited. Recently, high levels of resistance have been reported in CIMMYT synthetic wheat genotypes. Our study was done on three populations derived from the spot blotch resistant genotypes ‘Milan/Shanghai #7’, ‘Chirya. 3’ and ‘NL 971’ crossed with the susceptible commercial cultivar ‘BL1473’. Fifteen different physio-morphological traits and areas under disease progress curves (AUDPC) were evaluated in F2 and F3 generations during 2005-2006 at Rampur (Chitwan, Nepal). The majority of traits showed weak negative significant or non-significant genetic and phenotypic correlation with AUDPC except Area Under SPAD (soil plant analysis development) decline curve (AUSDC) and flag leaf duration Results showed no undesirable genetic association of resistance with physiomorphological characters, and thus independent selection for individual traits is possible. In addition, AUSDC and flag leaf duration have potential application as complementary traits in selecting for high resistance.
536			_aResearch and Partnership Program
546			_aText in English
594			_aINT1237
650		7	_aBipolaris sorokiniana _2AGROVOC _927115
650			_aIdeotypes _2AGROVOC _919570
650		7	_aPhysiological functions _2AGROVOC _96734
700	1		_aKhadka, K. _94184
700	1		_aSubedi, S. _923467
700	1		_aSharma, R.C. _93576
700	1		_9826 _aDuveiller, E. _gDG's Office _8INT1237
773	0		_tJournal of Plant Pathology _gv. 91, no. 1, p. 113-122 _dItaly : Springer, 2009. _x1125-4653
856	4		_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/1678
942			_cJA _2ddc _n0
999			_c27774 _d27774