The Rough Bent-toed Gecko Cyrtopodion scabrum (Heyden,1827) is one of the invasive species in Algeria and Northwestern Africa. where was it recorded in Algeria, from the east (Souf) and west (Ghardaïa) of north Sahara. In this note, another new locality of this species in the province wilaya of Ouargla, south-east Algeria. C. scabrum is medium-size adult may reach 4.5±0.8Cm of snout vent length and up to 9.5 ±2Cm total length.
{"title":"A fortuitous encounter with the invasive gecko, Cyrtopodion scabrum (Heyden,1827) (squamata: Gekkonidae): A new locality of an in the province wilaya of Ouargla, south-east Algeria","authors":"Aicha Mouane","doi":"10.57056/ajb.v3i2.64","DOIUrl":"https://doi.org/10.57056/ajb.v3i2.64","url":null,"abstract":"The Rough Bent-toed Gecko Cyrtopodion scabrum (Heyden,1827) is one of the invasive species in Algeria and Northwestern Africa. where was it recorded in Algeria, from the east (Souf) and west (Ghardaïa) of north Sahara. In this note, another new locality of this species in the province wilaya of Ouargla, south-east Algeria. C. scabrum is medium-size adult may reach 4.5±0.8Cm of snout vent length and up to 9.5 ±2Cm total length.","PeriodicalId":431221,"journal":{"name":"Algerian Journal of Biosciences","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125304379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
As the COVID-19 pandemic continues to ravage the world and threaten people's lives, treating infected patients effectively has been one of the top concerns for medical workers around the world. Currently, no medication is recommended to treat COVID-19, and no cure is available. Researchers are testing a variety of possible treatments. Several drugs are being researched in different countries. Most are existing drugs that are being trialled against the virus. Pharmaceuticals undergoing clinical trials to assess their safety and efficacy as potential treatments for COVID-19, include the antiviral nucleotide analogue remdesivir, systemic interferons and in particular interferon β-1a, the antiviral combination lopinavir/ritonavir, the antimalarial chloroquine/hydroxychloroquine, and monoclonal antibodies against components of the immune system such as interleukin-6 (IL-6) and IL-4. It is important that the potential treatments are carefully assessed in randomised controlled trials..
{"title":"The main treatments used for SARS-CoV-2 patients","authors":"D. Merghache","doi":"10.57056/ajb.v3i2.65","DOIUrl":"https://doi.org/10.57056/ajb.v3i2.65","url":null,"abstract":"As the COVID-19 pandemic continues to ravage the world and threaten people's lives, treating infected patients effectively has been one of the top concerns for medical workers around the world. Currently, no medication is recommended to treat COVID-19, and no cure is available. Researchers are testing a variety of possible treatments. Several drugs are being researched in different countries. Most are existing drugs that are being trialled against the virus. Pharmaceuticals undergoing clinical trials to assess their safety and efficacy as potential treatments for COVID-19, include the antiviral nucleotide analogue remdesivir, systemic interferons and in particular interferon β-1a, the antiviral combination lopinavir/ritonavir, the antimalarial chloroquine/hydroxychloroquine, and monoclonal antibodies against components of the immune system such as interleukin-6 (IL-6) and IL-4. It is important that the potential treatments are carefully assessed in randomised controlled trials..","PeriodicalId":431221,"journal":{"name":"Algerian Journal of Biosciences","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132193134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Hussaini, Halima Sadiya Ahmed, Hauwa’u Ahmad, M. Sulaiman, A. Usman
Endophytes have been identified as reservoirs of novel bioactive secondary metabolites that can serve as a potential candidate for the development of new antimicrobial drugs. The aim of the study was to screen for antibacterial activity of endophytic fungi isolated from Azadirachta indica and Mentha piperita. Endophytic fungi were isolated from healthy leaves of A. indica and M. piperita. The isolates were screened for their antibacterial activity against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. Antibacterial activity of ethyl acetate extracts of the isolates was also determined. A total 35 endophytic fungi were isolated out of which 11 showed antibacterial activity against at least two of the test bacterial isolates. Ethyl acetate extracts of these 11 endophytes had varying degree of antibacterial activity with zones of inhibition ranging from 10±10 mm to 26±0.5 mm. Result of this study revealed that endophytic fungi isolated leaves of A. indica and M. piperita produce bioactive compounds with antibacterial activity against the test bacterial isolates.
内生菌已被确定为新的生物活性次生代谢物的储存库，可以作为开发新的抗菌药物的潜在候选者。研究了印楝和薄荷内生真菌的抑菌活性。从籼稻和辣椒健康叶片中分离到内生真菌。筛选分离物对金黄色葡萄球菌、大肠杆菌和铜绿假单胞菌的抑菌活性。测定了其乙酸乙酯提取物的抑菌活性。共分离到35种内生真菌，其中11种对至少两种试验菌株具有抑菌活性。11种内生菌乙酸乙酯提取物均具有不同程度的抑菌活性，抑菌区范围为10±10 mm ~ 26±0.5 mm。结果表明，籼稻和胡椒分枝杆菌叶片内生真菌对实验分离菌具有抗菌活性。
{"title":"Preliminary Screening for Antibacterial Activity of Endophytic Fungi isolated from Azadirachta indica and Mentha piperita against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa","authors":"I. Hussaini, Halima Sadiya Ahmed, Hauwa’u Ahmad, M. Sulaiman, A. Usman","doi":"10.57056/ajb.v3i2.57","DOIUrl":"https://doi.org/10.57056/ajb.v3i2.57","url":null,"abstract":"Endophytes have been identified as reservoirs of novel bioactive secondary metabolites that can serve as a potential candidate for the development of new antimicrobial drugs. The aim of the study was to screen for antibacterial activity of endophytic fungi isolated from Azadirachta indica and Mentha piperita. Endophytic fungi were isolated from healthy leaves of A. indica and M. piperita. The isolates were screened for their antibacterial activity against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. Antibacterial activity of ethyl acetate extracts of the isolates was also determined. A total 35 endophytic fungi were isolated out of which 11 showed antibacterial activity against at least two of the test bacterial isolates. Ethyl acetate extracts of these 11 endophytes had varying degree of antibacterial activity with zones of inhibition ranging from 10±10 mm to 26±0.5 mm. Result of this study revealed that endophytic fungi isolated leaves of A. indica and M. piperita produce bioactive compounds with antibacterial activity against the test bacterial isolates.","PeriodicalId":431221,"journal":{"name":"Algerian Journal of Biosciences","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126882175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Combretum platypterum belongs to the family of Combretaceae. The leaf is used to treat fever, conjunctivitis, febrifuge, coughs, sexually transmitted diseases, diarrhea, and as a tonic. Despite it being used in ethnomedicine to treat various sicknesses, the safety profile of the leaf extract has not been reported. This study was aimed at testing the acute and sub-acute toxicological assessments of the aqueous leaf extract of Combretum platypterum.The acute study was carried out using mice and rats. In sub-acute experiments, the animals received 0.5, 1, and 2.5 g/kg of the plant extract orally per day for 28 days. The first weight and the last weight were taken. The liver, spleen, kidney, heart, lungs, and stomach were obtained, weighed, and fixed. Blood was obtained for haematology and biochemical assays. The LD50 of the root extract was indeterminable since there was no death in the mice and rats used. The leaf extract significantly increases (p<0.05) the body weight at the dose of 2.5g/kg compared to control. The body weight index was not affected compared to control (p>0.05). At 0.5 and 1 g/kg, the extract significantly increased the level of monocytes (p < 0.05) compared to the control. haematological parameters were not affected. Upon bichemical analysis of the leaf extract, 2.5 g/kg significantly (P<0.05) increased the level of HDL and 0.5 and 1 g/kg significantly (P<0.05) increased the level of TRI compared to control. Other parameters were not affected. This study shows that aqueous root extract is safe.
{"title":"Toxicological assessment of the aqueous leaves extract of Combretum platypterum (Welw) Hutch & Dalziel","authors":"Dickson Uwaya Uwaya, M. Idu","doi":"10.57056/ajb.v3i2.62","DOIUrl":"https://doi.org/10.57056/ajb.v3i2.62","url":null,"abstract":"Combretum platypterum belongs to the family of Combretaceae. The leaf is used to treat fever, conjunctivitis, febrifuge, coughs, sexually transmitted diseases, diarrhea, and as a tonic. Despite it being used in ethnomedicine to treat various sicknesses, the safety profile of the leaf extract has not been reported. This study was aimed at testing the acute and sub-acute toxicological assessments of the aqueous leaf extract of Combretum platypterum.The acute study was carried out using mice and rats. In sub-acute experiments, the animals received 0.5, 1, and 2.5 g/kg of the plant extract orally per day for 28 days. The first weight and the last weight were taken. The liver, spleen, kidney, heart, lungs, and stomach were obtained, weighed, and fixed. Blood was obtained for haematology and biochemical assays. The LD50 of the root extract was indeterminable since there was no death in the mice and rats used. The leaf extract significantly increases (p<0.05) the body weight at the dose of 2.5g/kg compared to control. The body weight index was not affected compared to control (p>0.05). At 0.5 and 1 g/kg, the extract significantly increased the level of monocytes (p < 0.05) compared to the control. haematological parameters were not affected. Upon bichemical analysis of the leaf extract, 2.5 g/kg significantly (P<0.05) increased the level of HDL and 0.5 and 1 g/kg significantly (P<0.05) increased the level of TRI compared to control. Other parameters were not affected. This study shows that aqueous root extract is safe.","PeriodicalId":431221,"journal":{"name":"Algerian Journal of Biosciences","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115011000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Yahaya, A. Abdulazeez, A. Adeosun, Haliru Abdullahi, Hikmat Ahmed, Angela Daniel, Yusuf Ibrahim
This survey was aimed at determining the occurrence as well as identifying the insect pests of tomatoes (Solanum lycopersicum), amaranths (Amaranthus spp.), lettuce (Lactuca sativa), green onions (Allium cepa), and cabbage (Brassica oleracae) grown in Ikorodu, Lagos, Nigeria, towards effective control and management. After giving informed consent, structured questionnaires were used to collect demographic data from the participants, including age, education level, and pest control strategy. Two vegetable farms were then selected, of which one was in the metropolis (labeled A) and the second was on the outskirts (labeled B). After visual counting of pests on the vegetables, they were captured with swoop nets, aspirators, and forceps, and then identified in the laboratory using hand lenses and identification keys. The results show that the vegetable farmers were middle-aged men with at least a secondary school education, and chemical application was the most widely used pest control measure in the area. Farm A had 127 pests, with Solanum lycopersicum accounting for 57 (44.88%), followed by Amaranthus spp. (23, representing 18.11%), Brassica oleracae (19, representing 14.97%), Lactuca sativa (18, representing 14.17%), and Allium cepa (10, representing 7.87%). Farm B had 101 pests, of which Solanum lycopersicum accounted for 44 (43.56%), followed by Amaranthus spp. with 22 (21.78%), Lactuca sativa and Brassica oleracae each had 13 (12.87%), and Allium cepa had 9 (8.92%). Aphids were the most predominant pests with 69 members, followed by hornworms with 32, thrips and pumpkin bees each had 27, cutworms had 26, and white flies had 24, respectively. Overall, the results showed that there is a heavy pest infestation of vegetables in Ikorodu. Farmers need to be educated on pest control and management.
{"title":"Occurrence and Identities of Insect Pests of Vegetables in Ikorodu, Lagos, Nigeria","authors":"T. Yahaya, A. Abdulazeez, A. Adeosun, Haliru Abdullahi, Hikmat Ahmed, Angela Daniel, Yusuf Ibrahim","doi":"10.57056/ajb.v3i2.58","DOIUrl":"https://doi.org/10.57056/ajb.v3i2.58","url":null,"abstract":"This survey was aimed at determining the occurrence as well as identifying the insect pests of tomatoes (Solanum lycopersicum), amaranths (Amaranthus spp.), lettuce (Lactuca sativa), green onions (Allium cepa), and cabbage (Brassica oleracae) grown in Ikorodu, Lagos, Nigeria, towards effective control and management. After giving informed consent, structured questionnaires were used to collect demographic data from the participants, including age, education level, and pest control strategy. Two vegetable farms were then selected, of which one was in the metropolis (labeled A) and the second was on the outskirts (labeled B). After visual counting of pests on the vegetables, they were captured with swoop nets, aspirators, and forceps, and then identified in the laboratory using hand lenses and identification keys. The results show that the vegetable farmers were middle-aged men with at least a secondary school education, and chemical application was the most widely used pest control measure in the area. Farm A had 127 pests, with Solanum lycopersicum accounting for 57 (44.88%), followed by Amaranthus spp. (23, representing 18.11%), Brassica oleracae (19, representing 14.97%), Lactuca sativa (18, representing 14.17%), and Allium cepa (10, representing 7.87%). Farm B had 101 pests, of which Solanum lycopersicum accounted for 44 (43.56%), followed by Amaranthus spp. with 22 (21.78%), Lactuca sativa and Brassica oleracae each had 13 (12.87%), and Allium cepa had 9 (8.92%). Aphids were the most predominant pests with 69 members, followed by hornworms with 32, thrips and pumpkin bees each had 27, cutworms had 26, and white flies had 24, respectively. Overall, the results showed that there is a heavy pest infestation of vegetables in Ikorodu. Farmers need to be educated on pest control and management.","PeriodicalId":431221,"journal":{"name":"Algerian Journal of Biosciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130624310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mayssara El Bouhissi, Fayçal Seddiki, Abdelwahab Chedad
Trapelus boehmei, one of the species of the family Agamidae found in Algeria, which are mainly distributed on the High Plateau, from M’sila to Naâma and Tlemcen-south with an uncertain presence from Batna and it extends to the entire east of Algeria between El Tarf and Tebessa. These data represent the New locality record in the Sahara region, in South-west of Algeria at Tindouf.
{"title":"Trapelus boehmei (Wagner, Melville, Wilms & Schmitz, 2011) (Squamata: Agamidae): New locality record in the South-west of Algeria at Tindouf","authors":"Mayssara El Bouhissi, Fayçal Seddiki, Abdelwahab Chedad","doi":"10.57056/ajb.v3i2.63","DOIUrl":"https://doi.org/10.57056/ajb.v3i2.63","url":null,"abstract":"Trapelus boehmei, one of the species of the family Agamidae found in Algeria, which are mainly distributed on the High Plateau, from M’sila to Naâma and Tlemcen-south with an uncertain presence from Batna and it extends to the entire east of Algeria between El Tarf and Tebessa. These data represent the New locality record in the Sahara region, in South-west of Algeria at Tindouf.","PeriodicalId":431221,"journal":{"name":"Algerian Journal of Biosciences","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122063012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The study was conducted on seeds of three varieties of Opuntia ficus-indica (O. ficus-indica), harvested from different regions of Souk Ahras North-East (Sidi-Fredj, Taoura and Drea) of Algeria). The analysis consisted of antioxidants extraction, following the solid-liquid extraction with ethanol 40% (v/v), their quantification and determination of their antioxidant activity by two methods (reducing power and DPPH• Test). Results show that total phenolic content (TPC) ranged from 74.04 to 92.83 mg GAE /100g Extract. The Sidi-Fredj variety has the best rate followed, by the Taoura and Drea ones. Concerning, flavonoids and tannins, the Taoura variety contains higher concentrations corresponding to 2.67 mg QE/100g and 6.60mg CE/100g. activities of extracts of three varieties show similar performance; the EC50 for the reduction of ferric iron 0.05g/mL for all extracts, whereas the EA is more important in Sidi-Fredj and Drea seeds extracts. Regarding the scavenging of DPPH •, Drea and Sidi-Fredj varieties show the highest capacity equals to 0.20g/mL. Linear correlations between the different studied activities and some antioxidants (flavonoids, tannins) rates were noticed; indicating their participation in the obtained effect. Analysis of the oil by HPLC revealed the presence of phenolic compounds including gallic acid and a form of vitamin E (α-tocophérol), capable of expressing biological activities; Anti-oxidants and vitamins. CPG analysis showed that prickly pear oil was a major source of essential fatty acids (C18 :2 and C18 :3).The seeds extract present therefore a variety effect with properties that should be taken intconsideration for possible other exploitation in addition to the oil one.
{"title":"HPLC Chromatographic Analysis Antioxidant activity of seeds some varieties of prickly pear (Opuntia ficus-indica L.) from the Sidi-Fredj souk Ahras Algeria","authors":"Abderrahmane Bouaouich, Faiza Bouguerche","doi":"10.57056/ajb.v3i1.54","DOIUrl":"https://doi.org/10.57056/ajb.v3i1.54","url":null,"abstract":"The study was conducted on seeds of three varieties of Opuntia ficus-indica (O. ficus-indica), harvested from different regions of Souk Ahras North-East (Sidi-Fredj, Taoura and Drea) of Algeria). The analysis consisted of antioxidants extraction, following the solid-liquid extraction with ethanol 40% (v/v), their quantification and determination of their antioxidant activity by two methods (reducing power and DPPH• Test). Results show that total phenolic content (TPC) ranged from 74.04 to 92.83 mg GAE /100g Extract. The Sidi-Fredj variety has the best rate followed, by the Taoura and Drea ones. Concerning, flavonoids and tannins, the Taoura variety contains higher concentrations corresponding to 2.67 mg QE/100g and 6.60mg CE/100g. activities of extracts of three varieties show similar performance; the EC50 for the reduction of ferric iron 0.05g/mL for all extracts, whereas the EA is more important in Sidi-Fredj and Drea seeds extracts. Regarding the scavenging of DPPH •, Drea and Sidi-Fredj varieties show the highest capacity equals to 0.20g/mL. Linear correlations between the different studied activities and some antioxidants (flavonoids, tannins) rates were noticed; indicating their participation in the obtained effect. \u0000Analysis of the oil by HPLC revealed the presence of phenolic compounds including gallic acid and a form of vitamin E (α-tocophérol), capable of expressing biological activities; Anti-oxidants and vitamins. CPG analysis showed that prickly pear oil was a major source of essential fatty acids (C18 :2 and C18 :3).The seeds extract present therefore a variety effect with properties that should be taken intconsideration for possible other exploitation in addition to the oil one.","PeriodicalId":431221,"journal":{"name":"Algerian Journal of Biosciences","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122507094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
New data on wintering and range expansion of Maghreb magpie Pica pica mauritanica in two oases. The first record is in Biskra North, in one of the oases of El Kantara (January 2022) and the second observation is at the extreme south of the Aurès at Ghoufi (March 2019). These data represent the first mention of Maghreb magpie in this region at the mouth of the Sahara at Aurès Mountains (Biskra and Batna, Algeria).
{"title":"Maghreb Magpie Pica pica mauritanica winters in two oases, at the mouth of the Sahara at Aurès Mountains (Biskra and Batna, Algeria)","authors":"Habib Bouletif, Abdelwahab Chedad, Amor Bendjedidi","doi":"10.57056/ajb.v3i1.49","DOIUrl":"https://doi.org/10.57056/ajb.v3i1.49","url":null,"abstract":"New data on wintering and range expansion of Maghreb magpie Pica pica mauritanica in two oases. The first record is in Biskra North, in one of the oases of El Kantara (January 2022) and the second observation is at the extreme south of the Aurès at Ghoufi (March 2019). These data represent the first mention of Maghreb magpie in this region at the mouth of the Sahara at Aurès Mountains (Biskra and Batna, Algeria).","PeriodicalId":431221,"journal":{"name":"Algerian Journal of Biosciences","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129777800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The problem of salinity of irrigation water in palm groves has led us to conduct this study based on the comparison of the quality of dates Deglet Nour and Ghars from two farming systems in the region of El-Oued according to the EC irrigation water. Salt stress in El'Ghout causes in both varieties a regression of biometric characteristics, pH, EC, water content and dry matter, while total sugars are high. The dates of the farm are more voluminous, less acidic, with high ash content, dry matter and high electrical conductivity. According to standards Algerian of date classification reveals that the characteristics of Deglet Nour dates of El'Ghout are more damaged by the salinity of the environment. The two varieties of the farm have better characteristics than those of El'Ghout. It also appears that the salinity of water improves the sugar content of dates
{"title":"Effect of water salinity stress on dates biometric and biochemical characteristics","authors":"Keltoum Krid","doi":"10.57056/ajb.v3i1.51","DOIUrl":"https://doi.org/10.57056/ajb.v3i1.51","url":null,"abstract":"The problem of salinity of irrigation water in palm groves has led us to conduct this study based on the comparison of the quality of dates Deglet Nour and Ghars from two farming systems in the region of El-Oued according to the EC irrigation water. Salt stress in El'Ghout causes in both varieties a regression of biometric characteristics, pH, EC, water content and dry matter, while total sugars are high. The dates of the farm are more voluminous, less acidic, with high ash content, dry matter and high electrical conductivity. According to standards Algerian of date classification reveals that the characteristics of Deglet Nour dates of El'Ghout are more damaged by the salinity of the environment. The two varieties of the farm have better characteristics than those of El'Ghout. It also appears that the salinity of water improves the sugar content of dates","PeriodicalId":431221,"journal":{"name":"Algerian Journal of Biosciences","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127750978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Rebbas, S. Benhissen, Djamel Sarri, Abdelouahab Belkassam, R. Bounar
Guizotia abyssinica (L. f) Cass. (Asteraceae) is native to Ethiopia. This asteracea was discovered in the region of Sétif and M’sila, in northeastern Algeria. Ecological notes are also provided.
{"title":"Découverte de Guizotia abyssinica (L.f.) Cass. (Asteraceae) en Algérie et mise au point sur son utilisation","authors":"K. Rebbas, S. Benhissen, Djamel Sarri, Abdelouahab Belkassam, R. Bounar","doi":"10.57056/ajb.v3i1.55","DOIUrl":"https://doi.org/10.57056/ajb.v3i1.55","url":null,"abstract":"Guizotia abyssinica (L. f) Cass. (Asteraceae) is native to Ethiopia. This asteracea was discovered in the region of Sétif and M’sila, in northeastern Algeria. Ecological notes are also provided.","PeriodicalId":431221,"journal":{"name":"Algerian Journal of Biosciences","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125547512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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