| 000 | 03241nab a22004457a 4500 | ||
|---|---|---|---|
| 001 | G94548 | ||
| 003 | MX-TxCIM | ||
| 005 | 20230728231458.0 | ||
| 008 | 211110s2011 xxu|||p|op||| 00| 0 eng d | ||
| 022 | _a1573-5060 (Online) | ||
| 022 | 0 | _a0014-2336 | |
| 024 | 8 | _ahttps://doi.org/10.1007/s10681-010-0273-1 | |
| 040 | _aMX-TxCIM | ||
| 041 | _aeng | ||
| 090 | _aCIS-6252 | ||
| 100 | 1 |
_9839 _aGeorge, M.L.C. _gResearch & Partnership Program _8INT2451 |
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| 245 | 1 | 0 | _aGenetic distance and hybrid value in tropical maize under P stress and non stress conditions in acid soils |
| 260 |
_aDordrecht (Netherlands) : _bSpringer, _c2011. |
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| 500 | _aPeer review | ||
| 500 | _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0014-2336 | ||
| 520 | _aAn emphasis in maize breeding for areas with acid soils is the development of varieties with tolerance to P-deficiency plus high yield potential in acidic as well as normal soils. This study was carried out to assess the (i) genetic diversity within a set of tropical inbred lines developed from acid soil-tolerant populations; (ii) F1 yield performance, mid-parent heterosis (MPH), high-parent heterosis (HPH), and specific combining ability (SCA) in a diallel set of crosses under P stress (low P) and non-stress (high P) conditions; and (iii) the effect of P stress on the relationship between genetic distance (GD) and hybrid performance. Using field evaluation and molecular marker studies, the results show that these germplasm from the South American maize breeding program of CIMMYT for improving tolerance to acid soils had only a moderate level of genetic diversity. The utility of GD as a predictor of hybrid value is best up to a certain threshold, as correlations with GD became inconsistent when the inbred parents were greatly divergent. There was no correlation between GD and F1 grain yield, MPH, HPH and SCA when the GD was >0.77. The high correlation of GD with F1 grain yield and with SCA in specific subsets of crosses having a narrower range of GD shows that GD can be put to practical use in predicting hybrid performance. The highest correlation between GD and SCA, seen in the subset of crosses between lines within a cluster, was reasonably stable even when the environment had a severe effect on yield. | ||
| 536 | _aGlobal Maize Program|Research and Partnership Program | ||
| 546 | _aText in English | ||
| 591 | _aSpringer | ||
| 594 | _aINT2451|INT2062 | ||
| 650 | 7 |
_aMaize _2AGROVOC _91173 |
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| 650 | 7 |
_aGenetic distance _92526 _2AGROVOC |
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| 650 | 7 |
_91145 _aHeterosis _2AGROVOC |
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| 650 | 7 |
_aAcid soils _94688 _2AGROVOC |
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| 650 | 7 |
_aPhosphorus _2AGROVOC _95314 |
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| 650 | 7 |
_aNutrient deficiencies _2AGROVOC _95613 |
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| 650 | 7 |
_aAbiotic stress _2AGROVOC _93448 |
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| 700 | 1 |
_aSalazar, F. _922018 |
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| 700 | 1 |
_aWarburton, M.L. _94138 |
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| 700 | 1 |
_aNarro, L. _gGlobal Maize Program _gIntegrated Development Program _91730 _8INT2062 |
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| 700 | 1 |
_aVallejo, F.A. _924866 |
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| 773 | 0 |
_tEuphytica _gv. 178, no. 1, p. 99-109 _wG444298 _dDordrecht (Netherlands) : Springer, 2011. _x0014-2336 |
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| 856 | 4 |
_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/889 |
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| 942 |
_cJA _2ddc _n0 |
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| 999 |
_c28289 _d28289 |
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