Optimizing Winter Wheat Resilience to Climate Change in Rain Fed Crop Systems of Turkey and Iran

Frontiers in Plant Science
Marta S LopesDiego Pequeno

Abstract

Erratic weather patterns associated with increased temperatures and decreasing rainfall pose unique challenges for wheat breeders playing a key part in the fight to ensure global food security. Within rain fed winter wheat areas of Turkey and Iran, unusual weather patterns may prevent attaining maximum potential increases in winter wheat genetic gains. This is primarily related to the fact that the yield ranking of tested genotypes may change from one year to the next. Changing weather patterns may interfere with the decisions breeders make about the ideotype(s) they should aim for during selection. To inform breeding decisions, this study aimed to optimize major traits by modeling different combinations of environments (locations and years) and by defining a probabilistic range of trait variations [phenology and plant height (PH)] that maximized grain yields (GYs; one wheat line with optimal heading and height is suggested for use as a testing line to aid selection calibration decisions). Research revealed that optimal phenology was highly related to the temperature and to rainfall at which winter wheat genotypes were exposed around heading time (20 days before and after heading). Specifically, later winter wheat genotypes wer...Continue Reading

References

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Aug 30, 2000·Nature·Y ZhuC C Mundt
Jul 10, 2002·Annals of Botany·J L ArausC Royo
Aug 24, 2007·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·H KuchelS P Jefferies
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Dec 28, 2012·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Marta S LopesMichael Baum
Jan 25, 2014·Journal of Integrative Plant Biology·Marta Silva LopesMatthew Reynolds
Oct 28, 2014·Frontiers in Plant Science·Simon M LangerTobias Würschum
Dec 30, 2014·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·M S LopesM P Reynolds
Apr 1, 2007·Functional Plant Biology : FPB·Juan Jose Olivares-VillegasGlenn K McDonald

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Citations

Jun 18, 2021·Journal of Experimental Botany·Matthew P ReynoldsHans J Braun

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Software Mentioned

CIMMYT
ESWYT
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Excel

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