The present study aimed to: (i) identify helminth eggs and protozoan cysts in wastewater samples ... more The present study aimed to: (i) identify helminth eggs and protozoan cysts in wastewater samples to which both human and animals could be exposed when they are reused in agriculture; and (ii) evaluate the efficiency of their removal by two wastewater treatment systems (activated sludge and lagoon). For these purposes, 234 wastewater samples (117 raw, 117 treated) were collected from 20 wastewater treatment plants (WWTPs) in Tunisia over a one-year sampling period. Parasitic load was enumerated by the modified Bailenger method. The results showed that helminth eggs found were Nematodes mainly represented by Ascaris sp. (95%), Hookworm species (50%), and Enterobius vermicularis (45%). For Cestodes, species identified were Taeniid eggs (85%), Hymenolepis nana (70%), Hymenolepis diminuta (55%) and digestive Strongyles. Among protozoa, Giardia sp., Entamoeba histolytica/dispar/moshkovskii and Entamoeba coli cysts were found in 100% of raw wastewater samples. The overall removal efficienc...
JOURNAL OF OASIS AGRICULTURE AND SUSTAINABLE DEVELOPMENT
Opuntia ficus-indica (OFI) is a high added value species which different organs are used in sever... more Opuntia ficus-indica (OFI) is a high added value species which different organs are used in several fields, including water purification. The present study intended to treat contaminated well water using naturally prepared coagulant from the cladodes of four local OFI populations in Tunisia. Physicochemical characterization of the water was carried out before and after treatment. The treatment applied allowed to decontaminate the well water studied. Most of the parameters tested were significantly influenced by the "population used" factor. The treatment by the "Amless" population of OFI resulted in the best reduction rates of the contents of Mg, Na, Cu, and Pb. "Loki" population allowed obtaining the best pH and EC reductions. The “Violet” population resulted in the highest COD, BOD5, and TSS reductions. The effectiveness and simplicity of this treatment method would encourage farmers to use it to improve the quality of the well water that is used for ...
Assessment of the contributions of womens agricultural development groups: a survey of women in t... more Assessment of the contributions of womens agricultural development groups: a survey of women in the Zaghouan governorate in Tunisia. Agricultural development groups were created in Tunisia to involve members in local development, protect and rationalize natural resources. They take over from the administrations activities and ensure cooperation and exchange with national and international agricultural organizations. The objective of this work is to analyze the contribution of the Womens Agricultural Development Groups (WADGs) in improving the living conditions of rural women in Oued Sbaihia and Nadhour regions in the governorate of Zaghouan. Specific surveys of 40 members and 25 not members of the two WADGs were carried out. Results showed that the residence place of the women surveyed had no significant impact on whether or not to join the WADG. The statistical study revealed a significant association between the activity nature practiced by the subjects surveyed and their percepti...
ABSTRACT The study aims the creation of the pure barley variety, tolerant to the abiotic stress b... more ABSTRACT The study aims the creation of the pure barley variety, tolerant to the abiotic stress by anther culture. This study was concerned two variety of barley: cultivar Ardhaoui, selected for their best tolerance to the abiotic stress (salt and drought) collected from Tunisia, and cultivar Arige, from Syria, sensitive for the two types of stress. The androgenic aptitude was evaluated in the parents (Ardhaoui and Arige) and their hybrids (F1) by anther culture. The stage of setting in anther culture was given on the basis of morphological and cytological criteria. The result shows that the capacity of regeneration of cal differs from a genotype with another (it varies from 50% at the hybrids with 40% in the parent Arige). Following the results, it is important to announce that the rate of albinism which we observed is height, it especially exceeds 70% from Ardhaoui; it can be explained by the combination of several factors. Finally we can deduced that the majority of the regenerated planted are diploid (70%).
ABSTRACT Polyploid plants are distinguished from diploids by an improved photosynthetic capacity ... more ABSTRACT Polyploid plants are distinguished from diploids by an improved photosynthetic capacity related to the increase of the photosynthetic enzymes and pigments quantities. The aim of this work was to study the physiological performances accompanying the experimental polyploidisation of Trigonella foenumgraecum by comparing the induced autotetraploid, the diploid resulting from the treated plants and the parent. Total chlorophylls content, photosynthesis rate, transpiration rate and stomatal conductance were measured for each genotype. Results showed highly significant variations (p < 0.01) between the different genotypes for the studied physiological characters. PCA and UPGMA method structured the genotypes in two groups. The first group is formed by the autotetraploids and the second is consisted by the parents and the diploids resulting from the treated plants.
There is a great need to find cheaper but still efficient treatment methods for wastewater. This ... more There is a great need to find cheaper but still efficient treatment methods for wastewater. This study aimed to test the purifying performance of three different Moringa oleifera varieties that were cultivated in Tunisia on raw (RUW) and secondary treated urban wastewater (TUW). The seeds of the Mornag, Egyptian, and Indian varieties were powdered, added to the water (at concentrations of 0, 50, 100, and 150 mg·L−1), and stirred for 45 min at 120 rpm, and then left to settle for two hours. A physicochemical characterization of the wastewater was carried out before and after treatment. The investigated treatments decontaminated both types of urban wastewater. The best treatments were obtained with the Egyptian variety (at 150 mg·L−1), which excelled at the reduction of EC, TSS, BOD5, Cl, SO4, Ca, Na, Cd, and Fe in RUW and BOD5, EC, Na, Mg, Cl, and Cd in TUW. High amounts of TKN was found in both types of Moringa-treated wastewater, meaning that it could be used in agricultural irriga...
Polyploidy plays an important role in plant evolution and constitutes an important mechanism of d... more Polyploidy plays an important role in plant evolution and constitutes an important mechanism of diversification and creation of genetic variability. Artificial polyploidy can be induced using the colchicine. The aim of this study was to determine the Trigonella foenum-greacum (2n = 16) population which resists better to colchicine treatment and which has the highest rate of polyploid formation among 38 populations collected from different Tunisian regions. The comparative study between treated and control plants showed significant increases (p < 0.05) for the parameters survival rate, rate of malformed leaves appearance, stem height and seeds number by pod. The 38 treated populations showed significant variations (p < 0.05) between them for the parameters survival rate, branches number, stem height and seeds number by pod. Results also showed that treatment of the shoot meristem by colchicine allowed to obtain diploid (2n = 16) and mixoploid plants having mixoploid branches (4...
The present study aimed to: (i) identify helminth eggs and protozoan cysts in wastewater samples ... more The present study aimed to: (i) identify helminth eggs and protozoan cysts in wastewater samples to which both human and animals could be exposed when they are reused in agriculture; and (ii) evaluate the efficiency of their removal by two wastewater treatment systems (activated sludge and lagoon). For these purposes, 234 wastewater samples (117 raw, 117 treated) were collected from 20 wastewater treatment plants (WWTPs) in Tunisia over a one-year sampling period. Parasitic load was enumerated by the modified Bailenger method. The results showed that helminth eggs found were Nematodes mainly represented by Ascaris sp. (95%), Hookworm species (50%), and Enterobius vermicularis (45%). For Cestodes, species identified were Taeniid eggs (85%), Hymenolepis nana (70%), Hymenolepis diminuta (55%) and digestive Strongyles. Among protozoa, Giardia sp., Entamoeba histolytica/dispar/moshkovskii and Entamoeba coli cysts were found in 100% of raw wastewater samples. The overall removal efficienc...
JOURNAL OF OASIS AGRICULTURE AND SUSTAINABLE DEVELOPMENT
Opuntia ficus-indica (OFI) is a high added value species which different organs are used in sever... more Opuntia ficus-indica (OFI) is a high added value species which different organs are used in several fields, including water purification. The present study intended to treat contaminated well water using naturally prepared coagulant from the cladodes of four local OFI populations in Tunisia. Physicochemical characterization of the water was carried out before and after treatment. The treatment applied allowed to decontaminate the well water studied. Most of the parameters tested were significantly influenced by the "population used" factor. The treatment by the "Amless" population of OFI resulted in the best reduction rates of the contents of Mg, Na, Cu, and Pb. "Loki" population allowed obtaining the best pH and EC reductions. The “Violet” population resulted in the highest COD, BOD5, and TSS reductions. The effectiveness and simplicity of this treatment method would encourage farmers to use it to improve the quality of the well water that is used for ...
Assessment of the contributions of womens agricultural development groups: a survey of women in t... more Assessment of the contributions of womens agricultural development groups: a survey of women in the Zaghouan governorate in Tunisia. Agricultural development groups were created in Tunisia to involve members in local development, protect and rationalize natural resources. They take over from the administrations activities and ensure cooperation and exchange with national and international agricultural organizations. The objective of this work is to analyze the contribution of the Womens Agricultural Development Groups (WADGs) in improving the living conditions of rural women in Oued Sbaihia and Nadhour regions in the governorate of Zaghouan. Specific surveys of 40 members and 25 not members of the two WADGs were carried out. Results showed that the residence place of the women surveyed had no significant impact on whether or not to join the WADG. The statistical study revealed a significant association between the activity nature practiced by the subjects surveyed and their percepti...
ABSTRACT The study aims the creation of the pure barley variety, tolerant to the abiotic stress b... more ABSTRACT The study aims the creation of the pure barley variety, tolerant to the abiotic stress by anther culture. This study was concerned two variety of barley: cultivar Ardhaoui, selected for their best tolerance to the abiotic stress (salt and drought) collected from Tunisia, and cultivar Arige, from Syria, sensitive for the two types of stress. The androgenic aptitude was evaluated in the parents (Ardhaoui and Arige) and their hybrids (F1) by anther culture. The stage of setting in anther culture was given on the basis of morphological and cytological criteria. The result shows that the capacity of regeneration of cal differs from a genotype with another (it varies from 50% at the hybrids with 40% in the parent Arige). Following the results, it is important to announce that the rate of albinism which we observed is height, it especially exceeds 70% from Ardhaoui; it can be explained by the combination of several factors. Finally we can deduced that the majority of the regenerated planted are diploid (70%).
ABSTRACT Polyploid plants are distinguished from diploids by an improved photosynthetic capacity ... more ABSTRACT Polyploid plants are distinguished from diploids by an improved photosynthetic capacity related to the increase of the photosynthetic enzymes and pigments quantities. The aim of this work was to study the physiological performances accompanying the experimental polyploidisation of Trigonella foenumgraecum by comparing the induced autotetraploid, the diploid resulting from the treated plants and the parent. Total chlorophylls content, photosynthesis rate, transpiration rate and stomatal conductance were measured for each genotype. Results showed highly significant variations (p &lt; 0.01) between the different genotypes for the studied physiological characters. PCA and UPGMA method structured the genotypes in two groups. The first group is formed by the autotetraploids and the second is consisted by the parents and the diploids resulting from the treated plants.
There is a great need to find cheaper but still efficient treatment methods for wastewater. This ... more There is a great need to find cheaper but still efficient treatment methods for wastewater. This study aimed to test the purifying performance of three different Moringa oleifera varieties that were cultivated in Tunisia on raw (RUW) and secondary treated urban wastewater (TUW). The seeds of the Mornag, Egyptian, and Indian varieties were powdered, added to the water (at concentrations of 0, 50, 100, and 150 mg·L−1), and stirred for 45 min at 120 rpm, and then left to settle for two hours. A physicochemical characterization of the wastewater was carried out before and after treatment. The investigated treatments decontaminated both types of urban wastewater. The best treatments were obtained with the Egyptian variety (at 150 mg·L−1), which excelled at the reduction of EC, TSS, BOD5, Cl, SO4, Ca, Na, Cd, and Fe in RUW and BOD5, EC, Na, Mg, Cl, and Cd in TUW. High amounts of TKN was found in both types of Moringa-treated wastewater, meaning that it could be used in agricultural irriga...
Polyploidy plays an important role in plant evolution and constitutes an important mechanism of d... more Polyploidy plays an important role in plant evolution and constitutes an important mechanism of diversification and creation of genetic variability. Artificial polyploidy can be induced using the colchicine. The aim of this study was to determine the Trigonella foenum-greacum (2n = 16) population which resists better to colchicine treatment and which has the highest rate of polyploid formation among 38 populations collected from different Tunisian regions. The comparative study between treated and control plants showed significant increases (p < 0.05) for the parameters survival rate, rate of malformed leaves appearance, stem height and seeds number by pod. The 38 treated populations showed significant variations (p < 0.05) between them for the parameters survival rate, branches number, stem height and seeds number by pod. Results also showed that treatment of the shoot meristem by colchicine allowed to obtain diploid (2n = 16) and mixoploid plants having mixoploid branches (4...
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
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