Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2001.181.183AydinIbrahim Ferat Uzun 2200142This study was carried out to determine the reasons for dormancy of Gelemen clover seeds existing in Campus area of the University of Ondokuz Mayis located in Kurupelit area of Samsun, Turkey and the ways of overcoming these reasons. The study was conducted under laboratory conditions. To got over dormancy, various chemicial matters such as Gibberellic acid (GA), KNO3 and H2SO4 were used. The other methods used to break dormancy were to sandpaper the seed for a known period, to keep the seeds in airproof plastic bag, to rub the seeds with sand, precooling, preheating, leaving the seeds for olding and application of hot water.
According to the results, applications of various chemical matters had a limited effect on breaking dormancy. While germination rate was 7.75% in seeds without any application, this rate rose to a level of 16% in seeds applied to various chemical matters. In this study, the highest germination rate was obtained from the application of sandpaper. Application of rubbing with sand followed this application with a germination rate of 61.25%. Leaving the seed to get old naturally, keeping the seeds in a airproof plastic bag, precooling, preheating and application of hot water had no effect on germination rate.]]>Gazziero, D.L.P., F.C. Kzryzanowski, A.V. Ulbrich, E. Voll and R.A. Pitelli,1991Sorghum halepense (L.) Pars.) by potassium nitrate and sulfhuric acid treatments.]]>132124Horowitz, M. and R.B. Taylorson,1985Abutilon theophrasti Medic. (velvetleaf).]]>25363372Keyseroglu, K.,1993Datura stramonium L.) tohumlarinin cimlenmesine bazi fizlksel ve kimyasal islemleron etkisi.]]>17727735Mujioa, M.M. and C.P. Rumi,1993Lotus tenuis seeds on germination.]]>243234Paramathma, M., C. Surendran, R. Rai, P. Srimathi and R.R. Vinaya,199112125128Seong, R.C., K.Y. Park and J.Y. Che,199035248253Singh, J.N., B.N. Jha, S.K. Sinha and R.S.P. Singh,1985132832Tomer, R. and J.D. Maguire,1989172931Sehirali, S.,19971997Manga, I., Z. Acar and I. Ayan,19951995Acikgoz, E.,1991Pages: 456Pages: 456Genckan, M.S.,1983