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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Canonical correlations between agronomic traits and seed physiological quality in segregating soybean populations

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Pereira, E. M. [1] ; Silva, F. M. [1] ; Val, B. H. P. [1] ; Pizolato Neto, A. [1] ; Mauro, A. O. [1] ; Martins, C. C. [1] ; Uneda-Trevisoli, S. H. [1]
Total Authors: 7
[1] Univ Estadual Sao Paulo Julio de Mesquita Filho, Fac Ciencias Agr & Vet, Dept Prod Vegetal, Jaboticabal, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Genetics and Molecular Research; v. 16, n. 2 APR 13 2017.
Web of Science Citations: 0

The objective of this study was to evaluate the relationship between agronomic traits and physiological traits of seeds in segregating soybean populations by canonical correlation analysis. Seven populations and two commercial cultivars in three generations were used: F-3 plants and F-4 seeds; F-4 plants and F-5 seeds, and F-4 seeds and plants. The following agronomic traits (group I) were evaluated: number of days to maturity, plant height at maturity, insertion height of first pod, number of pods, grain yield, and oil content. The physiological quality of seeds (group II) was evaluated using germination, accelerated aging, emergence, and emergence rate index tests. The results showed that agronomic traits and physiological traits of seeds are not independent. Intergroup associations were established by the first canonical pair for the generation of F-3 plants and F-4 seeds, especially between more productive plants with a larger pod number and high oil content and seeds with a high germination percentage and emergence rate. For the generation of F-4 plants and F-5 seeds, the first canonical pair indicated an association between reduced maturity cycle, seeds with a high emergence percentage and a high percentage of normal seedlings after accelerated aging. According to the second canonical pair, more productive and taller plants were associated with seed vigor. For the generation of F-4 seeds and plants, the associations established by the first canonical pair occurred between seed vigor and more productive plants with high oil content and reduced maturity cycle, and those established by the second canonical pair between seeds of high physiological quality and tall plants. (AU)

FAPESP's process: 11/12958-9 - Mapping QTL's and obtaining early soybean genotypes with high oil content in order crop reform sugar cane areas
Grantee:Sandra Helena Unêda-Trevisoli
Support type: Regular Research Grants