Contribution to the Study of Lygeum spartum L. Germinative Properties in the South Region of Tlemcen (Western Algeria)

摘要

The spart steppes occupy large areas of the West algerian territory inspite of their obvious regression since the beginning of the last century, particularly in the Southern region of Tlemcen. This study highlights Lygeum spartum germinative capacities. Germination tests in the laboratory enabled us to determine optimal conditions for germination. Temperature is the most important factor in germination, the germination rate is high at 25°C, spart caryopses are sensitive to cold (5°C) and also to strong heats (35°C). The middles of cultivation used (nutrient agar and Muller Hinton) play a limitant role in the experimentation, spart seeds germinate better in distilled water than in these two middles of cultivation.