THE EFFECT OF GLUME ON SEED GERMINATION OF SORGHUM HALEPENSE (L.) PERS

摘要

Seeds of Sorghum halepense (L.) harvested after 7 months were highly dormant. In order to study the glume effect on the seeds germination, the following treatments were conducted: (1)seeds of S. Halepense (L.) Pers., (2)seeds removed of glumes, (3)seeds removed of glumes plus glumes, (4)seeds treated with concentrated sulfuric acid for 15 min., then rinsed with water for half an hour. Seeds removed the glumes or treated with concentrated sulfuric acid 15 min. Could be germinated. The germination rate was about 75-77.5%. When seeds removed of glume and glume were germinated in same culture dish, the germination rate was only about 0.5-1.5%. It suggested that an inhibitor in their glumes caused the dormancy of the seeds.