Comparative Performance of High-Yielding European Wheat Cultivars Under Contrasting Mediterranean Conditions

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2021Author
Lima, Valter Jario de
Gracia-Romero, Adrian
Zahra Rezzouk, Fatima
Diez Fraile, Maria Carmen
Araus Gonzalez, Ismael
Kamphorst, Samuel Henrique
Teixeira do Amaral Júnior, Antonio
Kefauver, Shawn C.
Aparicio, Nieves
Araus Ortega, José Luis
Suggested citation
Lima, Valter Jario de;
Gracia-Romero, Adrian;
Zahra Rezzouk, Fatima;
Diez Fraile, Maria Carmen;
Araus Gonzalez, Ismael;
Kamphorst, Samuel Henrique;
...
Araus Ortega, José Luis.
(2021)
.
Comparative Performance of High-Yielding European Wheat Cultivars Under Contrasting Mediterranean Conditions.
Frontiers in Plant Science, 2021, vol.12, 687622.
https://doi.org/10.3389/fpls.2021.687622.
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Show full item recordAbstract
Understanding the interaction between genotype performance and the target environment
is the key to improving genetic gain, particularly in the context of climate change. Wheat
production is seriously compromised in agricultural regions affected by water and heat
stress, such as the Mediterranean basin. Moreover, wheat production may be also limited
by the nitrogen availability in the soil. We have sought to dissect the agronomic and
physiological traits related to the performance of 12 high-yield European bread wheat
varieties under Mediterranean rainfed conditions and different levels of N fertilization during
two contrasting crop seasons. Grain yield was more than two times higher in the first
season than the second season and was associated with much greater rainfall and lower
temperatures. However, the nitrogen effect was rather minor. Genotypic effects existed
for the two seasons. While several of the varieties from central/northern Europe yielded
more than those from southern Europe during the optimal season, the opposite trend
occurred in the dry season. The varieties from central/northern Europe were associated
with delayed phenology and a longer crop cycle, while the varieties from southern Europe
were characterized by a shorter crop cycle but comparatively higher duration of the
reproductive period, associated with an earlier beginning of stem elongation and a greater
number of ears per area. However, some of the cultivars from northern Europe maintained
a relatively high yield capacity in both seasons. Thus, KWS Siskin from the UK exhibited
intermediate phenology, resulting in a relatively long reproductive period, together with a
high green area throughout the crop cycle.
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Frontiers in Plant Science, 2021, vol.12, 687622European research projects
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