abdollah Ataei; Ebrahim Gholamalipour Alamdari; Zeinab Avarseji; Ali Rahemi Karizaki
Abstract
The purpose of this study, allelopathic potential assessment of aqueous extract of root, stem, leaf and flower organ of Fumaria parviflora weed on morpho-physiological and biochemical characteractics of Lolium rigidum seedling in hydroponic culture. First, 5% suspension was prepared separately from the ...
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The purpose of this study, allelopathic potential assessment of aqueous extract of root, stem, leaf and flower organ of Fumaria parviflora weed on morpho-physiological and biochemical characteractics of Lolium rigidum seedling in hydroponic culture. First, 5% suspension was prepared separately from the organs with help of distilled water and then the resulting suspension solution (extract) was applied on 7 day old of seedlings of Lolium rigidum. Based on the results, various organs of Fumaria parviflora had significant inhibitory effect on growth indices of root length and seedling dry weight, content of chlorophyll b and carotenoids of Lolium rigidum. In most cases, the most inhibitory effect was related to leaf and flower organ extract. But content of prolin, soluble sugar and phenolic compounds were increased compared to control. The greatest increase in these compounds were obtained under leaf and flower organs of Fumaria parviflora. Therefore, by identifying the components of Fumaria parviflora and experiment on other species, maybe be a candidate for production of natural herbicide or proposed a model for the synthesis of herbicides.
Ebrahim Gholamalipour Alamdari; Amir Ghorbani; Zeinab Avarseji; Meisam habibi; abdollah Ataei
Abstract
The purpose of this study was eavaluation of morphological and biochemical haracteristics of rice seedlings–Domsia cultivar to various concentrations (0, 0.024, 0.048, 0.076 and 0.1 mM) of extracted phenolic compounds of barnyard grass (Echino crus-galli (L.) Beauv). The experiment was performed ...
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The purpose of this study was eavaluation of morphological and biochemical haracteristics of rice seedlings–Domsia cultivar to various concentrations (0, 0.024, 0.048, 0.076 and 0.1 mM) of extracted phenolic compounds of barnyard grass (Echino crus-galli (L.) Beauv). The experiment was performed based on a completely randomized design in three replications in hydroponic culture. Methanol was used to extraction of the phenolic compounds. In other experiment, different concentrations of hydroxyl benzene synthesis (0, 1.514, 3.054, 4.569 and 6.136 mM) also was applied on this cultivar. According to the results, effects of different concentrations of phenolic compounds of barnyard grass on charactristics of root length, width of largest leaf, relative water content of leaf, protein and total phenols of rice seedlings were significant at 5% probability level. So that, the extent of negative impact on these traits were increased with increasing concentrations of phenolic compouds of barntyard grass in comparison with control. The greatest reduction of these traits was related to 0.1 Mm of phenolic compounds concentration, although there was no significant difference between this treatment and some treatments. According to the results, significant reduction effect of synthetic phenolic compounds concentrations on studied traits in addition to leaf area in plant and content of chlorophyll a, b and total especially at higher concentrations was more than treatments of its natral concentrations in barnyard grass. Due to the observed negative impact of phenolic compounds of barntyardgrass on rice seedlings–Domsia cultivar and also exstance of considerable amount of aromatic groups of benzene derivatives such
