| 000 | 04505nab a22006377a 4500 | ||
|---|---|---|---|
| 001 | G94633 | ||
| 003 | MX-TxCIM | ||
| 005 | 20230724232328.0 | ||
| 008 | 210716s2010 ne |||p|op||| 00| 0 eng d | ||
| 022 | 0 | _a0378-4290 | |
| 024 | 8 | _ahttps://doi.org/10.1016/j.fcr.2010.05.004 | |
| 040 | _aMX-TxCIM | ||
| 041 | _aeng | ||
| 090 | _aCIS-6184 | ||
| 100 | 1 |
_aMandal, N.P. _92945 |
|
| 245 | 1 | 0 | _aImplications of genotype × input interactions in breeding superior genotypes for favorable and unfavorable rainfed upland environments |
| 260 |
_aAmsterdam (Netherlands) : _bElsevier, _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=0378-4290 | ||
| 520 | _aResource-poor farmers in India cultivate upland rice as a subsistence crop in poor soil with minimum inputs, often applying little or no fertilizer and controlling weeds by hand. Consequently, upland rice yields are very low. In our study, the response to management intensification of fertilizer application at rates of 40 N ha−1, 13 P ha−1, and 16.7 K ha−1 and two weed control treatments as compared with no fertilizer, and one hand weeding practice commonly followed by farmers in rainfed upland areas was examined with a large set of advanced breeding lines and adapted upland varieties tested over 3 years in multi-location trials. Highly significant genotype × environment interaction was observed in combined analyses across environments, leading to sub-grouping of sites into the high-yielding or favorable and low-yielding or unfavorable upland environment groups. A significant effect of management regime was observed. Averaged over 15 environments, the moderate-input treatment out-yielded the low-input treatment by nearly 65% or 0.8 t ha−1 under favorable environments and by nearly 48% (0.3 t ha−1) in unfavorable environments. A significant genotype effect and genotype × input management interaction for yield at favorable sites was observed. However, the same was not significant at unfavorable sites. Varietal differences were relatively small at unfavorable sites across input levels. The heritability estimates for grain yield were moderately high in both moderate- and low-input conditions in favorable environments. The genetic correlation between yields in moderate- and low-input conditions was high in both favorable and unfavorable environments. The study indicated that improved varieties performed well relative to landraces under low-input management. Improved varieties along with modestly intensified management offer an attractive option to increase the productivity of rainfed upland environments. For both favorable and unfavorable environments, indirect selection under moderate-input conditions was less efficient than direct selection for grain yield in low-input conditions, indicating upland breeding programs to adopt selection for grain yield under both moderate- and low-input conditions. | ||
| 536 | _aConservation Agriculture Program|Global Wheat Program | ||
| 546 | _aText in English | ||
| 591 | _aElsevier | ||
| 594 | _aINT3064|INT3065 | ||
| 650 | 7 |
_aUpland rice _2AGROVOC _927021 |
|
| 650 | 7 |
_aInputs _2AGROVOC _98686 |
|
| 650 | 7 |
_aManagement _2AGROVOC _93463 |
|
| 650 | 7 |
_aGenotype environment interaction _2AGROVOC _91133 |
|
| 650 | 7 |
_aSelection responses _2AGROVOC _911015 |
|
| 650 | 7 |
_aHeritability _2AGROVOC _91386 |
|
| 700 | 1 |
_917725 _aSinha, P.K. |
|
| 700 | 1 |
_921366 _aVariar, M. |
|
| 700 | 1 |
_921367 _aShukla, V.D. |
|
| 700 | 1 |
_92942 _aPerraju, P. |
|
| 700 | 1 |
_921368 _aMehta, A. |
|
| 700 | 1 |
_921369 _aPathak, A.R. |
|
| 700 | 1 |
_92936 _aDwivedi, J.L. |
|
| 700 | 1 |
_921370 _aRathi, S.P.S. |
|
| 700 | 1 |
_921371 _aBhandarkar, S. |
|
| 700 | 1 |
_921372 _aSingh, B.N. |
|
| 700 | 1 |
_92944 _aSingh, D.N. |
|
| 700 | 1 |
_921373 _aPanda, S.K. |
|
| 700 | 1 |
_921374 _aMishra, N.C. |
|
| 700 | 1 |
_921375 _aSingh, Y.V. |
|
| 700 | 1 |
_921376 _aPandya, R. |
|
| 700 | 0 |
_97894 _aMuneendra K. Singh |
|
| 700 | 1 |
_921377 _aSanger, R.B.S. |
|
| 700 | 1 |
_921378 _aBhatt, J.C. |
|
| 700 | 1 |
_aSharma, R.K. _gFormerly Global Wheat Program _8INT3065 _9888 |
|
| 700 | 1 |
_93003 _aRaman, A.K. |
|
| 700 | 1 |
_9165 _aKumar, A. |
|
| 700 | 1 |
_92252 _aAtlin, G.N. |
|
| 773 | 0 |
_tField Crops Research _gv. 118, no. 2, p. 135-144 _dAmsterdam (Netherlands) : Elsevier, 2010. _wG444314 _x0378-4290 |
|
| 856 | 4 |
_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/67 |
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| 942 |
_cJA _2ddc _n0 |
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| 999 |
_c28316 _d28316 |
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