عنوان المقالة:التأثير الاليلوباثي لمستخلص العشرق على إنبات ونمو ثلاثة أنواع من الأعشاب الضارة The Allelopathic effect of Senna italica (Mill) upon the germination and seedling growth of three species of Weeds
Ghassan Abdulwahid Obad1 and Mahroos Abedalla Bahwirth2
الملخص الانجليزي
Abstract
Many compounds that are excreted from various parts of plants in the soil show an allelopathic
effect upon the germination and growth of many speciesof neighboring weeds in the field. A
laboratory experiment has been carried out in order to evaluate the poisonous effect of Senna
italica(Mill) Lam Ex Stues in fighting three speciesof weeds. Those three speciesof weeds are as
follows: Chenopodium murale L , Echinochola coloumn L and Cyndon dactylon L. The experience
treatments upon the air branches extract have the following averages: (0.5%, 1.0%, 2.0%, 4.0%,
and distilled water control). Moreover, the effect of the extracts upon the germination of seeds and
growth of seedlings has been studied. The air branches extract showed a significant effect with its
various concentrations upon lowering the length of the root and the length of the air branches and
the dry wet by increasing its concentrations. Furthermore, The treatment of 4.0% has lowered the
weed germination by the rate of 24.6% for Chenopodium murale L, 28.1% for Cyndon dactylon L
and 33.4% for Echinochola colonum L. Finally, regarding the other growth descriptions, the same
treatment of 4.0% with Cyndon dactylon Lshowedthe lowest averages: 6.4 cm of the root length,
11.1 cm. of the feather length and 0.11 mg. of the dry wet.
تاريخ النشر
03/03/2017
الناشر
مجلة جامعة عدن للعلوم الطبيعية والتطبيقية جامعة عدن
محروس عبدالله محمد باحويرث | Mahroos Abdallah Mohammad bahwerith | 8404