000			03460nab a22003737a 4500
999			_c61320 _d61312
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003			MX-TxCIM
005			20240919021227.0
008			200212s2020 ne |||p|op||| 00| 0 eng d
022			_a0378-4290
024	8		_ahttps://doi.org/10.1016/j.fcr.2019.107675
040			_aMX-TxCIM
041			_aeng
100	1		_96513 _aHonsdorf, N. _8I1706539 _gIntegrated Development Program
245	1	0	_aDurum wheat selection under zero tillage increases early vigor and is neutral to yield
260			_aAmsterdam (Netherlands) : _bElsevier, _c2020.
500			_aPeer review
500			_aOpen Access
520			_aThe combination of zero tillage (ZT) and crop residue retention can substantially improve soil structure and reduce the risk of erosion. Growing conditions for crops are substantially altered in such systems and the question whether specific varieties adapted to ZT conditions need to be developed is not answered. Most published research assessed Genotype by Tillage interactions, which are rarely significant, using genotypes generally developed under CT conditions. CIMMYT’s durum wheat breeding program went beyond this approach and performed parallel early generation selection within 16 crosses both in conventional tilled (CT) and ZT soils with the aim of comparing the effect of selection environment (either CT or ZT) on the performance of selected progenies. From 16 initial crosses, 234 lines were selected under CT and 250 under ZT. All 484 lines were subsequently tested for yield and growth traits during three seasons near Ciudad Obregon, Sonora, Mexico in three different testing environments. Those included ZT and CT with full irrigation and CT with reduced irrigation. Early vegetative growth was slightly improved with selection under ZT in all testing environments. Grain yield was highest in ZT testing environment, with a very small average difference in 2013 (0.11 t ha-1) and larger differences in 2014 (0.65 t ha-1) and 2015 (0.42 t ha-1). The differences between selection streams observed for yield were marginal and in most cases not significant. We conclude that, within the germplasm pool handled in CIMMYT’s durum wheat breeding program, selection can be conducted under either tillage conditions without affecting negatively the performance of resulting progenies. The neutrality of selection under ZT in relation to performance of progenies is a likely hypothesis that should be tested in other ZT conditions and germplasm pool combinations.
546			_aText in English
650		7	_aPlant breeding _gAGROVOC _2 _91203
650		7	_2AGROVOC _92619 _aConservation agriculture
650		7	_2AGROVOC _94749 _aSelection
650		7	_aWheat _gAGROVOC _2 _91310
650		7	_2AGROVOC _91753 _aZero tillage
700	1		_aVerhulst, N. _gFormerly Sustainable Intensification Program _gFormerly Integrated Development Program _gSustainable Agrifood Systems _8INT3307 _9916
700	1		_aCrossa, J. _gGenetic Resources Program _8CCJL01 _959
700	1		_93542 _aVargas, M.
700	1		_aGovaerts, B. _gSustainable Intensification Program _gIntegrated Development Program _gDG's Office _8INT2813 _9860
700	1		_8INT2585 _9844 _aAmmar, K. _gGlobal Wheat Program
773	0		_dAmsterdam (Netherlands) : Elsevier, 2020. _gv. 249, art. 107675 _tField Crops Research _wu444314 _x0378-4290
856	4		_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/20701
942			_2ddc _cJA _n0