Effect of extraction of some medicinal plants to germination inhibitor on seeds of Alfalfa and Sainfoin for autumn sowing

Subject Areas :

Mehrab Yadegari ¹ ( Associate Professor, Department of Agronomy and Medicinal Plants, Faculty of Agriculture, Islamic Azad University, Shahrekord Branch, Shahrekord, Iran )

Received: 2017-01-13 Accepted : 2017-04-16 Published : 2017-05-22

Keywords: germination, Medicinal plant, Inhibitor materials, Range plants,

Abstract :

Quality of forage in rangelands dependent to time of beginning of growth, development and stress free. Today, secondary metabolites of medicinal plants can exploit to cause of delay in seed germination of plants. Alfalfa (Medicago sativa) and Sainfoin (Onobrychis vicifolia) have a specific role in forage production in Iran. This assay was carried out to delay of germination by using Thymus vulgaris, Achillea millefolium and Salvia officinalis extracts (0, 15, 30 and 45 gr.l-1 dried leaves) in laboratory condition. Experiments were carried out in completely randomized design with 4 replications. Results showed that water extracts had significant effect (P<0.01) on all measured traits except fresh and dried root weight. In alfalfa seeds, the highest seed vigour, germination percentage and seed germination rate were achieved in control treatment and the least of them were made by extractions of ThymeandSagewith45 gr.l-1. In Sainfoin seeds, the highest seed vigour, germination percentage and seed germination rate were made by control treatment and the least of them were made by extraction of Achillea with45 gr.l-1. Therefor in regions have spring chilling stress, for delay in germination of seeds of alfalfa can use extractions of ThymeandSagewith45 gr.l-1 and for Sainfoin seeds can consume of extraction of Achillea with45 gr.l-1.