Document Type : Original Article
Authors
- Hadi Kalantari 1
- Ali Izady darbandi 2
- Ardeshir Qaderi 3
- Seyed Ahmad Sadat noori 4
- Mohammadreza Labbafi 3
- Maryam Ahvazi 3
1 Department of Agronomy and Plant Breeding Science, College of Aburaihan, University of Tehran, Tehran, Iran.
2 Department of Crop Science and Plant Breeding - Abu Reihan Campus, University of Tehran
3 Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran
4 Department of Crop Science and Plant Breeding - Abu Reihan Campus, University of Tehran.
Abstract
The legume family has seed dormancy, which is an evolutionary adaptation that prevents seed germination in adverse ecological conditions and it is very important in preserving plant species. In order to study the effect of various mechanical, hormonal, and physical factors on the dormancy breaking of sophora seeds, an experiment was conducted in the form of a completely randomized design in three replications. The treatments included gibberellic acid, sulfuric acid, hot water, and cold at 4 degrees Celsius in different periods. The results showed that Compared to the very low germination of untreated seeds (0-53%), the application of 75% concentration of sulfuric acid for 15 minutes, improved the germination percentage (95.5%) and also the initial growth of the seedling. The percentage of germination (93%) in the treatment having hot water was significant compared to the control sample (56%). Compared to the very low germination of untreated seeds (0-53%), sulfuric acid (73-95.5%) and soaking in hot water (52-93%) were effective in germination. According to the dormancy failure of bitter gourd seeds in the tested treatments, it can be concluded that the dormancy of bitter gourd seeds is of a mechanical type and related to the physical properties of the seed coat. treatments of hot water and l sulfuric acid can remove seed dormancy in sophora. According to the breaking sophora seeds dormancy in the tested treatments, it can be concluded that the seed dormancy is of a mechanical type and related to the physical properties of the seed coat.
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