000			02618nab a22003377a 4500
999			_c28315 _d28315
001			G94632
003			MX-TxCIM
005			20210714225639.0
008			210714s2010 xxu|||p|op||| 00| 0 eng d
022			_a1435-0653 (Online)
022			_a0011-183X
024	8		_ahttps://doi.org/10.2135/cropsci2010.10.0028
040			_aMX-TxCIM
041			_aeng
090			_aCIS-6183
100	1		_aZhao, D.L. _921250
245	1	0	_aDeveloping aerobic rice cultivars for water-short irrigated and drought-prone rainfed areas in the tropics
260			_aUSA : _bCSSA : _bWiley, _c2010.
500			_aPeer review
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0011-183X
520			_aAerobic rice is a production system in which rice is direct seeded and grown in nonpuddled and nonflooded aerobic soils. Aerobic rice varieties need to be developed to cope with the increasing water scarcity in tropical Asia. Advanced breeding lines were evaluated in 24 yield trials under both nonstressed and stressed aerobic soil conditions in 4 yr (2005?2008) to assess the efficacy of the two-stress-level screening protocol and selection strategies for developing aerobic rice and to identify genotypes that are high yielding and drought tolerant. Twenty-six genotypes outyielded the reference varieties Apo and UPLRi-7 by more than 10% under both nonstress and stress conditions. High harvest index (HI) and vegetative vigor accounted for the increased yield of the newly developed genotypes. On average, the drought stress reduced grain yield by 60%, HI by 50%, and plant height by 12 cm and delayed flowering by 3 d. There was a low genetic correlation for yield across the two stress levels, and indirect selection under one stress level was not predicted to be effective in improving grain yield under the other, suggesting that screening genotypes under both nonstress and stress conditions for yield is needed to develop aerobic-adapted varieties combining high yield potential with drought tolerance. The elite germplasm identified in this study is likely to be useful to farmers in water-short irrigated and rainfed areas in the tropics.
536			_aConservation Agriculture Program
546			_aText in English
591			_aCrop Science Society of America (CSSA)
594			_aINT3064
700	1		_92252 _aAtlin, G.N.
700	1		_94124 _aAmante, M.
700	1		_aSta Cruz, M.T. _921251
700	1		_aKumar, A. _9165
773	0		_tCrop Science _gv. 50, no. 6, p. 2268-2276 _dUSA : CSSA : Wiley, 2010. _wG444244 _x1435-0653
856	4		_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/71
942			_cJA _2ddc _n0