000			02943nab a22003137a 4500
999			_c61837 _d61829
001			61837
003			MX-TxCIM
005			20240919021228.0
008			180103s2012 at |||p|op||| 00| 0 eng d
022			_a1445-4408
022			_a1445-4416 (Online)
024	8		_ahttps://doi.org/10.1071/FP12079
040			_aMX-TxCIM
041			_aeng
100	1		_9640 _aPassioura, J.B.
245	1	0	_aPhenotyping for drought tolerance in grain crops : _bwhen is it useful to breeders?
260			_aVictoria (Australia) : _bCSIRO Publising, _c2012.
500			_aPeer review
520			_aBreeding for drought tolerance in grain crops is not a generic issue. Periods of drought vary in length, timing and intensity and different traits are important with different types of drought. The search for generic drought tolerance using single-gene transformations has been disappointing. It has typically concentrated on survival of plants suffering from severe water stress, which is rarely an important trait in crops. More promising approaches that target complex traits tailored to specific requirements at the different main stages of the life of a crop, during: establishment, vegetative development, floral development and grain growth are outlined. The challenge is to devise inexpensive and effective ways of identifying promising phenotypes with the aim of aligning them with genomic information to identify molecular markers useful to breeders. Controlled environments offer the stability to search for attractive phenotypes or genotypes in a specific type of drought. The recent availability of robots for measuring large number of plants means that large numbers of genotypes can be readily phenotyped. However, controlled environments differ greatly from those in the field. Devising pot experiments that cater for important yield-determining processes in the field is difficult, especially when water is limiting. Thus, breeders are unlikely to take much notice of research in controlled environments unless the worth of specific traits has been demonstrated in the field. An essential link in translating laboratory research to the field is the development of novel genotypes that incorporate gene(s) expressing a promising trait into breeding lines that are adapted to target field environments. Only if the novel genotypes perform well in the field are they likely to gain the interest of breeders. High throughput phenotyping will play a pivotal role in this process.
546			_aText in English
650		7	_912974 _aDeficit irrigation _2AGROVOC
650		7	_95030 _aResilience _2AGROVOC
650		7	_aGermplasm _gAGROVOC _2 _91136
650		7	_aPlant breeding _gAGROVOC _2 _91203
650		7	_aAgronomic characters _gAGROVOC _2 _91008
650		7	_91081 _aDrought stress _2AGROVOC
773	0		_gv. 39, no. 11, p. 851-859 _tFunctional Plant Biology _x1445-4408 _dVictoria (Australia) : CSIRO Publising, 2012. _w447878
942			_2ddc _cJA _n0