Health and physiological quality of sorghum seeds treated with aqueous extracts and essential oils

Nicoletta Stefânia Dias da Silva Flávio, Nilza de Lima Pereira Sales, César Fernandes Aquino, Eriksen Patric Souza Soares, Lucas Franklin Souza Aquino, Hugo César Rodrigues Moreira Catão

Abstract


The objective of the present study was to evaluate the efficiency of aqueous extracts and essential oils on seed quality of sorghum cultivar BR 310. Two experiments were conducted, one using sorghum seeds treated with aqueous extract of Cinnamomum zeylanicum and Mentha spicata and another using essential oils of Ocimum gratissimum and Annona crassiflora. For the experiment with extracts concentrations were 0, 10, 20 and 30% and for the oils were 0, 5, 10 and 15 ?L/mL. We evaluated the following characteristics: seed health (Blotter test), germination, first count of germination and germination speed index. The design was a DIC in 2 x 4 factorial arrangement, two oils or two extracts with four concentrations, independent testing. Several fungal species were associated with the seed, and the genus Curvularia the most prevalent. The aqueous extract of cinnamon (Cinnamomum zeylanicum) and clove essential oil of basil (Ocimum gratissimum) have shown promise for the treatment of seeds, reducing fungal infestation, especially Curvularia, however have phytotoxic effect reducing the viability and vigor of sorghum seeds.


Keywords


Sorghum bicolor; Cinnamomum zeylanicum; Ocimum gratissimum; Alternative control; Germination and seed pathology.



DOI: http://dx.doi.org/10.5433/1679-0359.2014v35n1p7

Semina: Ciênc. Agrár.
Londrina - PR
E-ISSN 1679-0359
DOI: 10.5433/1679-0359
E-mail: semina.agrarias@uel.br
Este obra está licenciado com uma Licença Creative Commons Atribuição-NãoComercial 4.0 Internacional