بررسي اثرات آللوپاتي درمنه (Artemisia sieberi Besser) بر جوانه زني بذور و رشد دانه رست هاي يولاف وحشي (.Avena lodoviciana L) و تاج خروس (.Amaranthus retroflexus L

Examination of the effects of Allelopathy of Artemisia sieberi Besser subsp.sieberi on seed germination and Avena lodoviciana and Amaranthus retroflexus seedlings growth

Artemisia allelopathic quality which is a perennial plant and is related to compositeae family over the germination of seeds and the growth of Avena lodoviciana seedlings and Amaranthus retroflexus was considered in a series of examinations. The effect of each Artemisia growing parts (roots, stem and leaf) was examined separately. The tests were made in a completely randomized blocks with a factorial arrangement with four replications. First, thick aqueous extracts of each growing parts of Artemisia with 10 percent density (100 grams of the growing part per 1000 mililiter distilled water) were prepared and then aqueous extracts of zero, 20, 60 and 100 percent were made from each growing part, and the effect of each one over seeds germination and mentioned weed plants seedlings growth was taken into consideration. The results indicated a meaningful difference in 1 and 5 percent statistical level. The effect of different Artemisia aqueous extracts over the amount of germination and the length of young radical and coleoptile of Avena lodoviciana and raised Amaranthus retroflexus showed different and meaningful results. The analysis of their variance was performed with the use of MSTAT-C soft ware, and the Excel soft ware was used to draw the required charts, and the Duncan test was used to compare the data average. The results indicated that the effect of artemisia leaf aqueous extract on the germination and growth of Avena lodoviciana and Amaranthus retroflexus weed plant is more than other aqueous extracts of artemisia vegetative parts, and in comparison, the effect of artemisia leaf aqueous extract over the germination and growth of Avena lodoviciana seedlings is greater than of raised Amaranthus retroflexus weed plant.