000 02719naa a22003617a 4500
001 G96986
003 MX-TxCIM
005 20240321163930.0
008 240321s2012 mx ||||| |||| 00| 0 eng d
020 _a978-970-648-181-8
040 _aMX-TxCIM
041 _aeng
090 _aCIS-6789
100 1 _9898
_aCossani, C.M.
_gGlobal Wheat Program
_8INT3189
245 1 0 _aChapter 6. Canopy temperature and plant water relations traits
_b
260 _aMexico, D.F. :
_bCIMMYT,
_c2012.
520 _aWater drives most of the processes involved in plant growth and significant relationships exist between crop performance and many water-relations related traits such as leaf water potential, water uptake by roots, stomatal conductance, transpiration efficiency, osmotic adjustment, etc. Understanding of these relationships has permitted the identification of efficient tools that are used in plant selection for adaptation to water limited environments; including canopy temperature (CT) which is related to root depth and hydration status, and carbon isotope discrimination which ?when measured on non-water stressed tissue is related to intrinsic transpiration efficiency. These tools have also been applied in identifying QTLs for drought adaptation. Knowledge of water relations traits has also been used to identify complementary parents in breeding for improved adaptation of wheat to water limited environments. Both CT and leaf conductance can be used as surrogates for measuring photosynthetic rate, and have application in breeding for irrigated environments, especially where yield is source limited, by heat stress for example. Water relations traits such as leaf water potential, relative leaf water content, root characteristics, and osmotic adjustment are generally too time consuming to be applied in routine breeding but are useful experimentally as accurate indicators of stress levels in field trials.
536 _aGlobal Wheat Program
546 _aText in English
594 _aCPIJ01|INT1511|INT3189
595 _aCSC
650 7 _2AGROVOC
_91800
_aCanopy
650 7 _2AGROVOC
_91310
_aWheat
650 7 _2AGROVOC
_916698
_aStomatal conductance
650 7 _2AGROVOC
_913212
_aLeaf water potential
650 7 _2AGROVOC
_933418
_aRelative water content
650 7 _2AGROVOC
_911634
_aRoot systems
650 7 _2AGROVOC
_931821
_aOsmotic adaptation
700 1 _aPietragalla, J.
_8CPIJ01
_gIBP
_91413
700 1 _aReynolds, M.P.
_gGlobal Wheat Program
_8INT1511
_9831
773 _dMexico : CIMMYT, 2012.
_gp. 60-68
_tWheat physiological breeding I : interdisciplinary approaches to improve crop adaptation
_wG96140
_z978-607-95844-0-5 (Online)
_z978-970-648-181-8 (Print)
942 _cBP
_2ddc
_n0
999 _c8409
_d8409