1. Different leaf water dynamics post-anthesis affects the final kernel weight in wheat
- Author
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Osvaldo Pérez, Luis Viega, and Marina Castro
- Subjects
biomass allocation ,relative water content (rwc) ,stomatal conductance (gs) ,triticum aestivum ,water stress ,Agriculture ,Environmental sciences ,GE1-350 - Abstract
Drought stress during wheat (Triticum aestivum L.) grain filling can affect the grain yield and its quality; effects that in some regions can be increased by the event La Niña, the cold phase of the climatic phenomenon El Niño Southern Oscillation. The aim was to evaluate if the evolution of relative water content (RWC) and stomatal conductance (gs) can be related to grain yield and its quality. Four spring wheat cultivars grown in the southern cone of South America were subjected to two levels of irrigation applied after anthesis, a well-watered treatment (Control), and another with 50 % of the Control (Stress). RWC and gs were determined weekly during the stress period and agronomic traits at harvest. With a mean grain yield decrease of 14.8 % (P
- Published
- 2020
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