000			03989nab a22004217a 4500
001			G93318
003			MX-TxCIM
005			20230821182937.0
008			210930s2009 ne |||p|op||| 00| 0 eng d
022			_a0378-4290
024	8		_ahttps://doi.org/10.1016/j.fcr.2008.09.004
040			_aMX-TxCIM
041			_aeng
090			_aCIS-5552
100	1		_aSadras, V. _99745
245	1	0	_aPhenotypic plasticity of yield and phenology in wheat, sunflower and grapevine
260			_aAmsterdam (Netherlands) : _bElsevier, _c2009.
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			_aThis paper focuses on the interaction between genotype and environment, a critical aspect of plant breeding, from a physiological perspective. We present a theoretical framework largely based on Bradshaw's principles of phenotypic plasticity (Adv. Gen. 13: 115) updated to account for recent developments in physiology and genetics. Against this framework we discuss associations between plasticity of yield and plasticity of phenological development. Plasticity was quantified using linear models of phenotype vs environment for 169 wheat lines grown in 6 environments in Mexico, 32 sunflower hybrids grown in at least 15 environments in Argentina and 7 grapevine varieties grown in at least 14 environments in Australia. In wheat, yield ranged from 0.6 to 7.8 t ha−1 and the range of plasticity was 0.74–1.27 for yield and 0.85–1.17 for time to anthesis. The duration of the post-anthesis period as a fraction of the season was the trait with the largest range of plasticity, i.e. 0.47–1.80. High yield plasticity was an undesirable trait as it was associated with low yield in low-yielding environments. Low yield plasticity and high yield in low-yielding environments were associated with three phenological traits: early anthesis, long duration and low plasticity of post-anthesis development. In sunflower, yield ranged from 0.5 to 4.9 t ha−1 and the range of plasticity was 0.72–1.29 for yield and 0.72–1.22 for time to anthesis. High yield plasticity was a desirable trait as it was primarily associated with high yield in high-yielding environments. High yield plasticity and high yield in high-yielding environments were associated with two phenological traits: late anthesis and high plasticity of time to anthesis. In grapevine, yield ranged from 1.2 to 18.7 t ha−1 and the range of plasticity was 0.79–1.29 for yield, 0.86–1.30 for time of budburst, 0.84–1.18 for flowering, and 0.78–1.16 for veraison. High plasticity of yield was a desirable trait as it was primarily associated with high yield in high-yielding environments. High yield plasticity was associated with two phenological traits: plasticity of budburst and plasticity of anthesis. We report for the first time positive associations between plasticities of yield and phenology in crop species. It is concluded that in addition to phenology per se (i.e. mean time to a phenostage), plasticity of phenological development merits consideration as a distinct trait influencing crop adaptation and yield.
536			_aGlobal Wheat Program
546			_aText in English
591			_aElsevier
594			_aINT1511
650		7	_aGenotypes _91134 _2AGROVOC
650		7	_aEnvironment _91098 _2AGROVOC
650		7	_aFlowering _93729 _2AGROVOC
650		7	_aAdaptation _96026 _2AGROVOC
650		7	_aYields _91313 _2AGROVOC
650		7	_aEvolution _98815 _2AGROVOC
700	1		_aReynolds, M.P. _gGlobal Wheat Program _8INT1511 _9831
700	1		_923468 _aDe la Vega, A.J.
700	1		_923469 _aPetrie, P.R.
700	1		_923470 _aRobinson, R.
773	0		_tField Crops Research _gv. 110, no. 2, p. 242-250 _dAmsterdam (Netherlands) : Elsevier, 2009. _wG444314 _x0378-4290
856	4		_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/1677
942			_cJA _2ddc _n0
999			_c27779 _d27779