The effect of photoperiod genes and flowering time on yield and yield stability in durum wheat

dc.creatorArjona, J.M.
dc.creatorVillegas, D.
dc.creatorAmmar, K.
dc.creatorDreisigacker, S.
dc.creatorAlfaro, C.
dc.creatorRoyo, C.
dc.date2020-12-08T20:37:24Z
dc.date2020-12-08T20:37:24Z
dc.date2020
dc.date.accessioned2023-07-17T20:06:28Z
dc.date.available2023-07-17T20:06:28Z
dc.identifierhttps://hdl.handle.net/10883/21057
dc.identifier10.3390/plants9121723
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7512843
dc.descriptionThis study analysed the effect of flowering time as influenced by photoperiod sensitivity genes on yield and yield stability in durum wheat. Twenty-three spring genotypes harbouring different allele combinations at Ppd-A1 and Ppd-B1 were grown in 15 field experiments at three sites at latitudes from 41° to 19° N (Spain, Mexico-North and Mexico-South). Low temperature and solar radiation before flowering and long day length during grain-filling characteristic for the Spanish site resulted in high grain number/m2 (GN) and yield (GY), while a moderate GN combined with high solar radiation during grain-filling at Mexico-North led to heavier grains. Allele combination GS100-Ppd-A1a/Ppd-B1a reduced the flowering time up to nine days when compared with Ppd-A1b/Ppd-B1a. Differences in flowering time caused by Ppd-A1/Ppd-B1 allele combinations did not affect yield. Combinations GS105-Ppd-A1a/Ppd-B1b and Ppd-A1b/Ppd-B1b resulted in the highest GN, linked to spikelets/spike, which was higher in GS105-Ppd-A1a/Ppd-B1b due to more grains/spikelet. Flowering time caused by Eps had a minor effect on GN, spikes/m2 and grains/spike, but late flowering resulted in reduced grain weight and GY. Allele combinations harbouring alleles conferring a similar photoperiod sensitivity response at Ppd-A1 and Ppd-B1 resulted in greater yield stability than combinations that carry alleles conferring a different response. Allele combination GS100-Ppd-A1a/Ppd-B1a was the most suitable in terms of yield and yield stability of durum wheat cultivated under irrigation within the studied latitudes.
dc.languageEnglish
dc.publisherMDPI
dc.relationhttps://www.mdpi.com/2223-7747/9/12/1723#supplementary
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dc.rightsOpen Access
dc.source12
dc.source9
dc.source2223-7747
dc.sourcePlants
dc.source1723
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectEarliness Per Se
dc.subjectDay Length
dc.subjectGrain Filling
dc.subjectGrain Weight
dc.subjectGrain Number
dc.subjectPRECOCITY
dc.subjectSOLAR RADIATION
dc.subjectSEED FILLING
dc.subjectGRAIN
dc.titleThe effect of photoperiod genes and flowering time on yield and yield stability in durum wheat
dc.typeArticle
dc.typePublished Version
dc.coverageBasel (Switzerland)


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