Physical and physiological quality of oat (Avena sativa L. cv. Turquesa) seeds

##plugins.themes.bootstrap3.article.main##

Pablo A. Domínguez-Martínez
Sergio I. Mendoza-Pedroza
Arturo Pro-Martínez
Glafiro Torres-Hernández
Humberto Vaquera-Huerta
José I. Alejos-de la Fuente

Keywords

germination, grain, speed of emergence, vigor.

Resumen

bjective: The objective of this study was to determine the physical and physiological quality of a batch of oat (Avena sativa L. cv. Turquesa) seeds.


Design/Methodology/Approach: The following physical quality variables were evaluated: seed purity, weight of a thousand seeds, volumetric weight, and moisture content. Physiological quality was evaluated through a germination and emergence speed test, which also was used to measure seed vigor. A completely randomized experimental design, with factorial arrangement, and four repetitions was used. The factors analyzed were seed size (small and large) and aging (with and without aging).


Results: The following results were recorded: 99.52% seed purity; 34.31 g weight of a thousand seeds; 54.80 kg hl-1 volumetric weight; and 6.50% moisture content. Regarding treatment germination, no significant differences were found between the seed size and the size × aging interaction (P = 0.422). The aging treatment reduced germination from 96.50% (unaged seeds) to 89.25% (aged seeds). The emergence speed did not show significant differences regarding seed size (P = 0.066) and size × aging interaction (P = 0.868). The aging treatment had a negative impact on the emergence rate. The aged seeds emerged at a 15.55 plants d-1 speed, while unaged seeds reached a 17.88 plants d-1 speed. Study Limitations/Implications: This study only evaluated one batch of oat seeds. Findings/Conclusions: The seeds have an adequate physical and physiological quality to establish oat crops. In addition, the seed batch was highly vigorous, because it maintained >80% germination rate after the aging treatment.

Abstract 125 | EARLY ACCESS 9 Downloads 0

Artículos más leídos del mismo autor/a

1 2 3 4 > >>