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Multi-environment evaluation of oil accumulation pattern parameters in olive
J F Navas-Lopez1, L León1, E R Trentacoste2
1IFAPA Centro "Alameda del Obispo", Avda Menéndez Pidal s/n, 14004, Córdoba, Spain.
Plant Physiology and Biochemistry : PPB
|April 23, 2019
Summary
Understanding olive oil accumulation patterns is key for yield and harvest timing. Genetics and environment significantly impact oil content and accumulation rates, with temperature playing a crucial role.
Area of Science:
- Agricultural Science
- Plant Breeding
- Genetics
Background:
- Olive oil accumulation patterns are critical for determining olive oil yield and optimal harvest dates.
- Understanding the interplay between genetic and environmental factors is essential for improving olive cultivation.
Purpose of the Study:
- To evaluate the influence of genetic and environmental factors on olive oil accumulation patterns.
- To identify stable and adaptable olive genotypes for oil accumulation.
Main Methods:
- A multi-environment trial was conducted over two harvest seasons.
- Analysis included evaluating cultivars and breeding selections for oil accumulation parameters.
- Partial Least Squares (PLS) analysis was used to identify environmental influences.
Main Results:
- Significant effects of environment, genotype, and their interaction were found on maximum oil content and accumulation rate.
- The date of maximum oil content was primarily influenced by the environment.
- Temperature was identified as a determinant environmental factor affecting oil accumulation.
Conclusions:
- Multi-environment trials are crucial for characterizing olive genotypes' performance across diverse conditions.
- Breeding selections demonstrated good stability and adaptability in oil accumulation.
- Environmental factors, particularly temperature, significantly influence olive oil accumulation patterns.
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