000 02824nab|a22003497a|4500
999 _c63453
_d63445
001 63453
003 MX-TxCIM
005 20211006073558.0
008 200805s2008||||it |||p|op||||00||0|eng|d
022 _a1125-4653
022 _a2239-7264 (Online)
024 8 _ahttps://dx.doi.org/10.4454/jpp.v90i1.598
_qDOI is wrong in original article
040 _aMX-TxCIM
041 _aeng
100 1 _aRosyara, U.
_8I1707470
_94557
_gGlobal Wheat Program
245 1 0 _aCanopy temperature depression as an indication of correlative measure of spot blotch resistance and heat stress tolerance in spring wheat
260 _aItaly :
_bEdizioni ETS,
_c2008.
500 _aPeer review
520 _aHeat stress and spot blotch disease are most important stresses in non-traditional tropical wheat-growing areas causing significant yield losses and covering more than twenty five million hectares of land worldwide. These two stresses are supposed to be associated complicating development of tolerant genotypes. The current study was done with the objective of assessing potential application of canopy temperature depression (CTD) as an integrative trait for screening spot blotch resistance and heat stress tolerance. Ten genetically diverse genotypes with different level of resistance to spot blotch were grown both heat stressed (late sowing) and non-stressed (timely sowing) field conditions during 2002-2003 at Rampur and Bhairahawa, Nepal. Canopy temperature was measured during the different growth stages in fungicide protected and non protected plots using a hand held infrared thermometer and was used to calculate CTD and Area Under CTD Progress Curve (AUCTDPC). A strong negative correlation was observed between AUDPC per day and AUCTDPC (r = -0.72**) indicating that foliar blight susceptibility has important role in decreasing AUCTDPC. Genetic differences were observed for both spot blotch resistance and heat stress tolerance, so that genotypes could be categorized into tolerant to either one or both stresses based on AUCTDPC and AUDPC per day readings. AUCTDPC proved to be an integrative trait for both types of stresses and has promise for further application in selection of stress tolerant genotypes in tropical environments.
546 _aText in English
591 _aRosyara, U. : No CIMMYT Affiliation
650 7 _aCochliobolus sativus
_2AGROVOC
_92193
650 7 _aWheat
_gAGROVOC
_2
_91310
650 7 _aCanopy
_2AGROVOC
_91800
650 7 _aHeat tolerance
_2AGROVOC
_91972
650 7 _aPlant diseases
_gAGROVOC
_2
_91206
650 7 _aSelection criteria
_2AGROVOC
_92445
700 1 _aVromman, D.
_918947
700 1 _aDuveiller, E.
_8INT1237
_9826
_gDG's Office
773 0 _tJournal of Plant Pathology
_gv. 90, no. 1, p. 103-107
_dItaly : Edizioni ETS, 2008.
_x1125-4653
942 _cJA
_n0
_2ddc