Microalgae as a Biofertilizer on Oat Seed Germination

Abstract

Algae are a large and very diverse group of prokaryotic and eukaryotic organisms, autotrophic organisms. These organisms have the ability and potential to produce many secondary metabolites such as proteins, vitamins, amino acids and plant growth regulators and are widely distributed. The effect of different concentrations of Spirulina platensis and Cladophora extract on oat seeds (Avena sativa L.), germination percentage, germination speed, plumule length, radicle length, seedling length, seed vigor, fresh weight and dry weight were studied. Treatment 3 showed the highest germination rates for S.platensis extract 88.220%, 2.51333seed day-1, 5.58333 cm, 5.88333 cm, 11.47333 cm, 10110.2, 0.975 g and 0.952 g, while the lowest percentage of treatment 4 was 59.217%, 1.40667, 3.74000 cm, 3.38667 cm, 7.65000 cm, 5084.9, 0.78533 g and 0.37800 g, respectively. While the seed treatment with Cladophora algae extract in treatment 4 showed a germination rate of 84.040%, 2.44667seed day-1, 5.50667 cm, 5.32667 cm, 8333310 cm, 2 9104, 0.91533 g and 0.552167, while the lowest germination rate in treatment 4 was also 45.943%, 1.316637, 0003.39 cm, 3.31000 cm, 7.22667 cm, 2933.9, 0.71733 g and 0.356333 g compared to treatment zero. This study has shown that algae extracts have a positive effect on the germination of oat seeds and that it is possible to produce a commercial and environmentally friendly biofertilizer by using different concentrations of algae extracts.