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Advances in Agriculture
Volume 2014 (2014), Article ID 245686, 5 pages
Research Article

Effects of Different Treatments on Seed Germination Improvement of Calotropis persica

1Combating Desertification, Gorgan University of Agricultural Science and Natural Resources, Gorgan 49138 15739, Iran
2Faculty of Natural Resources, University of Kurdistan, Sanandaj 31585 4314, Iran

Received 10 January 2014; Revised 24 June 2014; Accepted 13 July 2014; Published 22 July 2014

Academic Editor: Tibor Janda

Copyright © 2014 Asghar Farajollahi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The purpose of this study was to investigate the effects of different treatments on seed germination in the desert plant species Calotropis persica (Gand.). This species is known to have long time for seed germination considering arid region condition and short time of access moist. An experiment was performed with 13 treatments and 4 replications in a completely randomized design. Treatments included KNO3 with concentrations of 0.1, 0.2, and 0.3 percent, immersion in hot water for five min, acetylsalicylic acid 100, 200, and 300 mg L−1, ethereal sulfuric acid (60%) for 5 and 10 min, thiourea with concentrations of 0.1% and 0.3%, and prechilling for 10 days. Tap water was used as the control. Our findings indicate that KNO3 0.1% and 100 mg L−1 acetylsalicylic acid were the most effective treatments for improvement of seed germination properties in this species. In a comparison of the two mentioned treatment, KNO3 0.1% treatments is the best.