| 000 | 03148nab a22004217a 4500 | ||
|---|---|---|---|
| 001 | G93858 | ||
| 003 | MX-TxCIM | ||
| 005 | 20230829171540.0 | ||
| 008 | 211110s2010 ne |||p|op||| 00| 0 eng d | ||
| 022 | _a1573-5036 (Online) | ||
| 022 | 0 | _a0032-079X | |
| 024 | 8 | _ahttps://doi.org/10.1007/s11104-009-0205-9 | |
| 040 | _aMX-TxCIM | ||
| 090 | _aCIS-5872 | ||
| 100 | 0 |
_aGunda Schulte auf'm Erley _924696 |
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| 245 | 1 | 0 | _aPhotosynthesis and leaf-nitrogen dynamics during leaf senescence of tropical maize cultivars in hydroponics in relations to N efficiency in the field |
| 260 |
_aDordrecht (Netherlands) : _bSpringer, _c2010 |
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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=0032-079X | ||
| 520 | _aThe selection process of nitrogen (N)-efficient cultivars during plant breeding could be simplified by a specification of secondary plant traits that are decisive for N efficiency. It was shown that leaf senescence under N deprivation of sixteen tropical maize cultivars in a short-term nutrient solution experiment was related to leaf senescence and grain yield under N deficiency (N efficiency) in field experiments. In this study we investigated if a quantification of leaf- and plant-N flows by 15N labelling can improve the evaluation of genotypic differences in leaf senescence in short-term experiments. Cultivars differed in leaf-N content prior to senescence; however, this appeared to have no significant impact on the development of leaf senescence. N import into senescing leaves was not related to total plant N uptake, but seems to have been regulated by leaf-inherent factors. Leaf N remaining in the leaf seems to have comprised inefficiently remobilized leaf N, at least during early senescence stages. Photosynthetic rate and chlorophyll contents at early senescence stages depended on additional factors to leaf-N content. Nevertheless, all parameters used to characterize leaf senescence were related to leaf senescence at anthesis in field experiments. However, only photosynthetic rate during late leaf senescence reflected cultivar differences in leaf senescence during reproductive growth and N efficiency in field experiments. | ||
| 536 | _aResearch and Partnership Program | ||
| 546 | _aText in English | ||
| 591 | _aSpringer | ||
| 594 | _aINT1888 | ||
| 650 | 7 |
_aIsotope analysis _2AGROVOC _92865 |
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| 650 | 7 |
_aGenetic variation _2AGROVOC _91129 |
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| 650 | 7 |
_aNitrogen _2AGROVOC _92912 |
|
| 650 | 7 |
_aNutrient deficiencies _2AGROVOC _95613 |
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| 650 | 7 |
_aStatistical methods _2AGROVOC _92624 |
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| 650 | 7 |
_aZea mays _2AGROVOC _91314 |
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| 700 | 1 |
_aAmbebe, T.F. _924863 |
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| 700 | 1 |
_aRegasa, M.W. _gFormerly Global Maize Program _8INT3344 _9928 |
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| 700 | 1 |
_aBanziger, M. _gResearch & Partnership Program _gExcellence in Breeding _8INT1888 _9834 |
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| 700 | 1 |
_aHorst, W.J. _924535 |
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| 773 | 0 |
_tPlant and Soil _gv. 330, no. 1-2, p. 313-328 _dDordrecht (Netherlands) : Springer, 2010. _x0032-079X _wG444682 |
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| 856 | 4 |
_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/1013 |
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| 942 |
_cJA _2ddc _n0 |
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| 999 |
_c27997 _d27997 |
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