The Effect of Photoperiod Genes and Flowering Time on Yield and Yield Stability in Durum Wheat
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Author
Arjona, Jose M.
Ammar, Karim
Dreisigacker, Susanne
Alfaro, Christian
Publication date
2020-12-07ISSN
2223-7747
Abstract
This 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.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
631 - Agriculture in general
Pages
19
Publisher
MDPI
Is part of
Plants
Citation
Arjona, Jose M., Dolors Villegas, Karim Ammar, Susanne Dreisigacker, Christian Alfaro, and Conxita Royo. 2020. "The Effect Of Photoperiod Genes And Flowering Time On Yield And Yield Stability In Durum Wheat". Plants 9 (12): 1723. MDPI. doi:10.3390/plants9121723.
Grant agreement number
INIA/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTA2015-00038-00-00/ES/La constitución alélica para genes responsables de la adaptación fenológica como estrategia para minimizar las limitaciones ambientales al rendimiento del trigo. Casos de estudio en ambientes objetivo de ambos hemisferios/PHENOFITTING
INIA/Programa Nacional de Proyectos de Investigación Fundamental/RTA2009-00085-00-00/ES/Bases fenológicas y genéticas de los patrones de adaptación del trigo duro a diversas condiciones fototérmicas y su utilidad para el desarrollo de germoplasma en el marco de la relación España-CIMMYT/
MINECO/Programa Nacional de Recursos y Tecnologías Agroalimentarias/AGL 2006-09226-C02-01/NUEVAS VIAS PARA MEJORAR LA ADAPTACION DEL TRIGO DURO, TRITICUM TURGIDUM L. VAR. DURUM, A AMBIENTES MEDITERRANEOS/
Program
Cultius Extensius Sostenibles
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS [2850]
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/