Allelopathic effects of some medicinal plants on the germination and growth of Chenopodium album L.

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Research Paper 01/10/2013
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Allelopathic effects of some medicinal plants on the germination and growth of Chenopodium album L.

Fahime Shokrani, Alireza Pirzad, Esmaeil Rezaei Chiyaneh, Mousa Jamali, Mehran Donyadost
Int. J. Biosci.3( 10), 33-39, October 2013.
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This study was conducted at the Laboratory of Medicinal Plants, Payamenoor University of west Azerbaijan-Nagadeh, Iran, in 2012. The water extract was prepared by soaking 15, 30, 45 and 60 gram of plant materials of Moldavian balm (Dracocephalum moldavica L), Lemon balm (Melissa officinalis L.), Cumin (Cuminum cyminum) and Black cumin (Nigella sativa L.) in 1 litter distilled water and shaking for 24 hours. Results of analysis of variance showed the significant effect of extract concentration and on the germination percent, germination rate, shoot length and radicle length. Interaction effect between concentration and plant species was significant on the ratio of radicle/shoot length and seedling dry weight. The highest germination percent (65.1 %) and germination rate (6.90 % per day) were obtained from water extract of cumin plant material. The maximum germination percent (79 %), germination rate (8.48 % per day) were obtained from control treatment. The highest ratio of radicle/shoot length (1.72) belonged to 15 g/l of cumin extract, as same as by water extract of 30 g/l Moldavian balm and 15 g/l black cumin extracts. The maximum seedling dry weight (0.065 g) was obtained from 15 g/l Moldavian balm.


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