000 02718nab a22004457a 4500
001 G90416
003 MX-TxCIM
005 20230828183211.0
008 210927s2008 xxk|||p|op||| 00| 0 eng d
022 _a1439-0523 (Online)
024 8 _ahttps://doi.org/10.1111/j.1439-0523.2007.01460.x
040 _aMX-TxCIM
041 _aeng
090 _aCIS-5272
100 1 _aSharma, R.C.
_93576
245 1 0 _aReduction in kernel weight as a potential indirect selection criterion for wheat grain yield under terminal heat stress
260 _aUnited Kingdom :
_bWiley,
_c2008.
340 _aComputer File|Printed
500 _aPeer review
500 _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0179-9541
520 _aHeat is an important abiotic stress during wheat (Triticum aestivum L.) grain-filling in South Asia. A study was undertaken to determine effectiveness of selection for reduction in 1000-kernel weight (TKWR) under heat stress to increase grain yield. Selection was made for low and high TKWR and selected progenies were evaluated in timely and late seeded trials at two locations in Nepal in 2003. One thousand kernel weight (TKW), biomass yield, grain yield, harvest index (HI), grain-filling duration (GFD) and area under spot blotch progress curve per day (AUDPC/day) were examined. The low and high TKWR groups did not differ significantly for TKW, biomass yield, grain yield, HI, days to heading, GFD and AUDPC/day under timely seeding. However, low TKWR lines showed higher TKW, biomass yield, grain yield, HI, and GFD and lower AUDPC/day than the lines with high TKWR under late seeding. Realized heritability estimates for TKWR ranged from 0.68 to 0.85. The findings show that selection for low TKWR could be used as an indirect selection criterion to identify high grain yielding lines under terminal heat stress.
536 _aGlobal Maize Program
546 _aText in English
591 _aJohn Wiley
594 _aINT0317
650 7 _aGrain
_91138
_2AGROVOC
_gAGROVOC
650 7 _aYields
_91313
_2AGROVOC
650 7 _91971
_aHeat stress
_2AGROVOC
650 7 _91386
_aHeritability
_2AGROVOC
650 7 _aKernels
_2AGROVOC
_91168
650 7 _aSowing date
_2AGROVOC
_914747
650 7 _aSelection
_2AGROVOC
_94749
650 7 _91296
_aTriticum aestivum
_2AGROVOC
650 7 _aWheat
_2AGROVOC
_91310
700 1 _aTiwary, A.K.
_923348
700 _aOrtiz-Ferrara, G.
_96742
773 0 _tPlant Breeding
_n635170
_gv. 127, no. 3, p. 241-248
_dUnited Kingdom : Wiley, 2008.
_wG445212
_x1439-0523
856 4 _yAccess only for CIMMYT Staff
_uhttps://hdl.handle.net/20.500.12665/1683
942 _cJA
_2ddc
_n0
999 _c26981
_d26981