000			03394nab a22004937a 4500
001			G83019
003			MX-TxCIM
005			20240919020945.0
008			210630s2006 xxu|||p|op||| 00| 0 eng d
022			_a1435-0653 (Online)
022			_a0011-183X
024	8		_ahttps://doi.org/10.2135/cropsci2005.05-0056
040			_aMX-TxCIM
041			_aeng
090			_aCIS-4662
100	1		_aMathews, K. _93392
245	1	0	_aGlobal adaptation of spring bread and durum wheat lines near-isogenic for major reduced height genes
260			_aUSA : _bCSSA : _bWiley, _c2006.
340			_aPrinted|Computer File
500			_aPeer review
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0011-183X
520			_aThe effect of major dwarfing genes, Rht-B1 and Rht-D1, in bread (Triticum aestivum L.) and durum (Triticum turgidum L. var. durum) wheats varies with environment. Six reduced-height near-isogenic spring wheat lines, included in the International Adaptation Trial (IAT), were grown in 81 trials around the world. of the 56 IAT trials yielding >3 Mg ha−1, the mean yield of semidwarfs was significantly greater than talls in 54% of trials; in the 27 trials yielding <3 Mg ha−1, semidwarfs were superior in only 24%. Sixteen pairs of semidwarf–tall near-isolines were grown in six managed drought environment trials (DETs) in northwestern Mexico. In these trials, semidwarfs outyielded talls in all but the most droughted environment (2.5 Mg ha−1). The effect of the height alleles varied with genetic background and environment. For both yield and height, variance components for allele and environment by allele interaction were larger than those for genetic background and genetic background by environment. Pattern analysis showed that tall and semidwarf lines had similar adaptation to stressed environments (<2.8 Mg ha−1, low rainfall), while semidwarfs yielded more in less stressed environments (>4.3 Mg ha−1, high rainfall). The best adapted near-isogenic pair had a Kauz background, where the tall was only 16% taller than the dwarf. In the Kauz-derived pair, the semidwarf outyielded the tall in only 13% of trials with no differences in low yielding trials. This supports the idea that “short talls” may be useful in marginal environments (yield <3 Mg ha−1).
536			_aGenetic Resources Program|Global Wheat Program
546			_aText in English
591			_aCrop Science Society of America (CSSA)|0602
594			_aINT3234|CCJL01|INT0610
650		7	_2AGROVOC _91310 _aWheat
650		7	_2AGROVOC _96026 _aAdaptation
650		7	_2AGROVOC _91313 _aYields
650		7	_2AGROVOC _93055 _aDwarfism
650		7	_2AGROVOC _91082 _aDrought tolerance
650		7	_2AGROVOC _92185 _aAlleles
650		7	_2AGROVOC _92624 _aStatistical methods
700	1		_aChapman, S. _9458
700	1		_9341 _aTrethowan, R.M.
700	1		_aSingh, R.P. _gGlobal Wheat Program _8INT0610 _9825
700	1		_aCrossa, J. _gGenetic Resources Program _8CCJL01 _959
700	1		_9648 _aPfeiffer, W.H.
700	1		_997 _aGinkel, M. Van
700	1		_91427 _aDeLacy, I.H.
773	0		_tCrop Science _n633944 _gv. 46, no. 2, p. 603-613 _dUSA : CSSA : Wiley, 2006. _wG444244 _x1435-0653
856	4		_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/659
942			_cJA _2ddc _n0
999			_c26151 _d26151