| 000 | 03497nab a22004577a 4500 | ||
|---|---|---|---|
| 001 | G95765 | ||
| 003 | MX-TxCIM | ||
| 005 | 20240919020947.0 | ||
| 008 | 210806s2011 ne |||p|op||| 00| 0 eng d | ||
| 022 | _a1573-5060 (Online) | ||
| 022 | 0 | _a0014-2336 | |
| 024 | 8 | _ahttps://doi.org/10.1007/s10681-011-0387-0 | |
| 040 | _aMX-TxCIM | ||
| 041 | _aeng | ||
| 090 | _aCIS-6489 | ||
| 100 | 1 |
_9880 _aVelu, G. _gGlobal Wheat Program _8INT2983 |
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| 245 | 1 | 0 | _aGene effects and heterosis for grain iron and zinc density in pearl millet (Pennisetum glaucum (L.) R. Br) |
| 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 | _aPearl millet [Pennisetum glaucum (L.) R. Br.] is a major warm-season cereal, grown primarily for grain production in the arid and semi-arid tropical regions of Asia and Africa. Iron (Fe) and zinc (Zn) deficiencies have been reported to be a food-related primary health problem affecting nearly two billion people worldwide. Improving Fe and Zn densities of staple crops by breeding offers a cost-effective and sustainable solution to reducing micronutrient malnutrition in resource poor communities. An understanding of the genetics of these micronutrients can help to accelerate the breeding process, but little is known about the genetics and heterosis pattern of Fe and Zn densities in pearl millet. In the present study, ten inbred lines and their full diallel crosses were used to study the nature of gene action and heterosis for these micronutrients. The general combining ability (GCA) effects of parents and specific combining ability (SCA) effects of hybrids showed significant differences for both of the micronutrients. However, the predictability ratio (2ó2gca/(2ó2gca + ó2sca)) was around unity both for Fe and Zn densities, implying preponderance of additive gene action. Further, highly significant positive correlation between mid-parent values and hybrid performance, and no correlation between mid-parent values and mid-parent heterosis confirmed again the predominant role of additive gene action for these micronutrients. Barring a few exceptions with one parent, hybrids did not outperform the parents having high Fe and Zn levels. This showed that there would be little opportunity, if any, to exploit heterosis for these mineral micronutrients in pearl millet. In general, high Fe and Zn levels in both of the parental lines would be required to increase the probability of breeding high Fe and Zn hybrids. | ||
| 536 | _aGenetic Resources Program|Global Wheat Program | ||
| 546 | _aText in English | ||
| 591 | _aSpringer | ||
| 594 | _aINT2983|CCJL01 | ||
| 595 | _aCSC | ||
| 650 | 7 |
_aCombining ability _92367 _2AGROVOC |
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| 650 | 7 |
_aGenes _93563 _2AGROVOC |
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| 650 | 7 |
_aIron _2AGROVOC _93544 |
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| 650 | 7 |
_aZinc _2AGROVOC _91315 |
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| 650 | 7 |
_91145 _aHeterosis _2AGROVOC |
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| 650 | 7 |
_aPearl millet _2AGROVOC _913920 |
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| 650 | 7 |
_aCenchrus americanus _930987 _2AGROVOC |
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| 700 | 1 |
_aRai, K.N. _93435 |
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| 700 | 1 |
_aMuralidharan, V. _921915 |
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| 700 | 1 |
_aLongvah, T. _921916 |
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| 700 | 1 |
_aCrossa, J. _gGenetic Resources Program _8CCJL01 _959 |
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| 773 | 0 |
_tEuphytica _gv. 180, no. 2, p. 251-259 _dDordrecht (Netherlands) : Springer, 2011. _wG444298 _x0014-2336 |
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| 856 | 4 |
_uhttps://hdl.handle.net/20.500.12665/274 _yAccess only for CIMMYT Staff |
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| 942 |
_cJA _2ddc _n0 |
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| 999 |
_c28751 _d28751 |
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