Hoa T. B. Nguyễn, Quan V. Ho, Thuong-Thuong Nguyen, M. V. Dang, Vinh Q Nguyen
The objective of the study was to evaluate the situation of bladder problems in cats in Ho Chi Minh City and investigated physiological and biochemical indicators in blood of these cats. The study was carried out from November 2021 to July 2022. A total of 164 cases of bladder problems in cats were collected from 3 veterinary hospitals. The results showed that the higher rates of bladder problems in cats occurred in male at 81.71% (female 19.29%), local breed at 63.41% (foreign breed 35.59%), neuterd cat at 64.02% (intact cat 35.98%), commercial food group at 61.59% (mixed diet 38.41%) and free keeping at 54.88% (keep in cage 45.12%). The rates of aged groups (< 2 years, 2-5 years, > 5 years) analyzed by gelded cat and interventional treatment were significantly different (P < 0.05). X-Ray was efficient to diagnose the bladder problems in cats. Results of typical physiological and biochemical indicators associated with the bladder pathology showed that there were increases in white blood cells (29.06 K/µL), monocytes (4.62 K/µL), hemoglobin (27.86 g/dL), aspartate transaminase (73.42 U/L), creatinine (298.53 µmol/L), blood urea nitrogen (20.57 µmol/L) and a decrease in platelets (36.16 K/µL). These blood indicators played an important role in the evaluation of decreased functions of liver and kidneys in the bladder problems of cats.
{"title":"Investigation of bladder problems in cats in Ho Chi Minh City","authors":"Hoa T. B. Nguyễn, Quan V. Ho, Thuong-Thuong Nguyen, M. V. Dang, Vinh Q Nguyen","doi":"10.52997/jad.4.05.2022","DOIUrl":"https://doi.org/10.52997/jad.4.05.2022","url":null,"abstract":"The objective of the study was to evaluate the situation of bladder problems in cats in Ho Chi Minh City and investigated physiological and biochemical indicators in blood of these cats. The study was carried out from November 2021 to July 2022. A total of 164 cases of bladder problems in cats were collected from 3 veterinary hospitals. The results showed that the higher rates of bladder problems in cats occurred in male at 81.71% (female 19.29%), local breed at 63.41% (foreign breed 35.59%), neuterd cat at 64.02% (intact cat 35.98%), commercial food group at 61.59% (mixed diet 38.41%) and free keeping at 54.88% (keep in cage 45.12%). The rates of aged groups (< 2 years, 2-5 years, > 5 years) analyzed by gelded cat and interventional treatment were significantly different (P < 0.05). X-Ray was efficient to diagnose the bladder problems in cats. Results of typical physiological and biochemical indicators associated with the bladder pathology showed that there were increases in white blood cells (29.06 K/µL), monocytes (4.62 K/µL), hemoglobin (27.86 g/dL), aspartate transaminase (73.42 U/L), creatinine (298.53 µmol/L), blood urea nitrogen (20.57 µmol/L) and a decrease in platelets (36.16 K/µL). These blood indicators played an important role in the evaluation of decreased functions of liver and kidneys in the bladder problems of cats.","PeriodicalId":250563,"journal":{"name":"The Journal of Agriculture and Development","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127270363","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}
Thinh V. D. Nguyen, H. Nguyen, Hieu T. Doan, N. T. Le, T. T. Trinh, T. Q. Le
Ecotourism is a trend of development in the tourism industry. Thanh An island commune (Can Gio district) is one of the most attractive ecotourism destinations in recent years of Ho Chi Minh City. This study aimed to analyze the factors affecting the development of ecotourism in Thanh An island. The results of Exploratory Factor Analysis showed that there were 6 factors affecting ecotourism development in Thanh An island: (1) Service costs, (2) Facilities - infrastructure, (3) People, (4) Safety and security, (5) Environment and natural resources, and (6) Landscape. Based on the research results, some solutions to develop ecotourism in Thanh An island were proposed.
{"title":"Factors influencing the ecotourism development in Thanh An Island, Can Gio District, Ho Chi Minh City, Vietnam","authors":"Thinh V. D. Nguyen, H. Nguyen, Hieu T. Doan, N. T. Le, T. T. Trinh, T. Q. Le","doi":"10.52997/jad.7.05.2022","DOIUrl":"https://doi.org/10.52997/jad.7.05.2022","url":null,"abstract":"Ecotourism is a trend of development in the tourism industry. Thanh An island commune (Can Gio district) is one of the most attractive ecotourism destinations in recent years of Ho Chi Minh City. This study aimed to analyze the factors affecting the development of ecotourism in Thanh An island. The results of Exploratory Factor Analysis showed that there were 6 factors affecting ecotourism development in Thanh An island: (1) Service costs, (2) Facilities - infrastructure, (3) People, (4) Safety and security, (5) Environment and natural resources, and (6) Landscape. Based on the research results, some solutions to develop ecotourism in Thanh An island were proposed.","PeriodicalId":250563,"journal":{"name":"The Journal of Agriculture and Development","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125401661","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}
Salt tolerance is one of the characteristics to ensure the viability of microorganisms when combined with chemical fertilizers. This research aimed to isolate bacteria that had both phosphate-solubilizing and salt-tolerant abilities for production of controlled-release inorganic fertilizer-incorporated microorganisms. Of twenty-five phosphate solubilizing bacteria strains isolated from soil samples collected from Ho Chi Minh City, Dong Nai, and Long An provinces on Pikovskaya medium (PVK), there were three strains of bacteria that had both phosphate solubilizing activity and salt tolerance. The analysis results on PVK medium supplemented with 3% and 4% NaCl showed that only PSM54 strain had phosphorusdegrading ring. Species identification based on 16S-rRNA sequence showed that PSM54 was 99.9% similar to Bacillus velezensis. The controlled-release fertilizer was made by coating biodegradable polymers incorporated with PSM54 bacteria that met standards for slow dissolution according to The Association of American Plant Food Control Officials. After 60 days of being immobilized in the membrane of controlled release, the PSM54 bacteria remained at 88.3% compared to the initial density.
{"title":"Isolation, immobilization of salt-tolerant and inorganic phosphate solubilizing bacteria for producing controlled-release inorganic fertilizer in combination with microorganisms","authors":"L. D. Bui, Hung T. Huynh, H. N. Nguyen","doi":"10.52997/jad.5.05.2022","DOIUrl":"https://doi.org/10.52997/jad.5.05.2022","url":null,"abstract":"Salt tolerance is one of the characteristics to ensure the viability of microorganisms when combined with chemical fertilizers. This research aimed to isolate bacteria that had both phosphate-solubilizing and salt-tolerant abilities for production of controlled-release inorganic fertilizer-incorporated microorganisms. Of twenty-five phosphate solubilizing bacteria strains isolated from soil samples collected from Ho Chi Minh City, Dong Nai, and Long An provinces on Pikovskaya medium (PVK), there were three strains of bacteria that had both phosphate solubilizing activity and salt tolerance. The analysis results on PVK medium supplemented with 3% and 4% NaCl showed that only PSM54 strain had phosphorusdegrading ring. Species identification based on 16S-rRNA sequence showed that PSM54 was 99.9% similar to Bacillus velezensis. The controlled-release fertilizer was made by coating biodegradable polymers incorporated with PSM54 bacteria that met standards for slow dissolution according to The Association of American Plant Food Control Officials. After 60 days of being immobilized in the membrane of controlled release, the PSM54 bacteria remained at 88.3% compared to the initial density.","PeriodicalId":250563,"journal":{"name":"The Journal of Agriculture and Development","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126819315","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}
Agricultural export has contributed greatly to Vietnamese economy over the past decades. Nevertheless, logistics performance and institutional quality have been identified as chronic inhibitors and bottlenecks which hamper the export growth of Vietnam. This paper aimed at investigating whether agricultural export was hindered logistically and institutionally. The considered case was Vietnam and major trading partners in the 2007-2018 period. The panel data analysis with fixed and random effects for the baseline estimation was used. Findings indicated that the agricultural export was positively influenced by income per capita and economic and institutional quality similarity between trading partners. Improved logistics performance may unintentionally cause a short term decrease in agricultural export. Institutional quality needs to be enhanced with substantive and specific contents related to the agricultural sector, which mitigates the institutional inequality between industries and locals in the economy.
{"title":"Agricultural export, logistics performance, and institutional quality: The case of Vietnam","authors":"Nha D. Le","doi":"10.52997/jad.1.05.2022","DOIUrl":"https://doi.org/10.52997/jad.1.05.2022","url":null,"abstract":"Agricultural export has contributed greatly to Vietnamese economy over the past decades. Nevertheless, logistics performance and institutional quality have been identified as chronic inhibitors and bottlenecks which hamper the export growth of Vietnam. This paper aimed at investigating whether agricultural export was hindered logistically and institutionally. The considered case was Vietnam and major trading partners in the 2007-2018 period. The panel data analysis with fixed and random effects for the baseline estimation was used. Findings indicated that the agricultural export was positively influenced by income per capita and economic and institutional quality similarity between trading partners. Improved logistics performance may unintentionally cause a short term decrease in agricultural export. Institutional quality needs to be enhanced with substantive and specific contents related to the agricultural sector, which mitigates the institutional inequality between industries and locals in the economy.","PeriodicalId":250563,"journal":{"name":"The Journal of Agriculture and Development","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126953883","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}
Tien T. M. Duong, N. Pham, Mien T. Vu, Loan T. B. Duong, Diem N. Luong
The study was conducted from January 2021 to April 2022 in a number of public parks, residential parks in urban areas, major streets and boulevards, and coffee shops in Ho Chi Minh City. The study was performed by using survey forms, taking pictures and collecting samples. Identification of trees was done by morphological comparison and analysis of collected data, and then information was used for landscape design via using professional design softwares. The results showed that 23 species belonging to 20 genera of the Arecaceae family were identified. Public parks had 22/23 species while residential parks, coffee shops and streets had 17/23 species, 8/23 species and 4/23 species, respectively. Trees of the Arecaceae family identified included 16 species with solitary stem and pinnate (69.5%) and 7 species with clustered trunk and palmate (30.5%). Sketchup, Lumion, and Photoshop softwares could be used for conceptual design that combines the palm trees and other species in the landscape.
{"title":"Investigation of ornamental plants of the palm family in public and private space in Ho Chi Minh City and their application in landscape design","authors":"Tien T. M. Duong, N. Pham, Mien T. Vu, Loan T. B. Duong, Diem N. Luong","doi":"10.52997/jad.6.05.2022","DOIUrl":"https://doi.org/10.52997/jad.6.05.2022","url":null,"abstract":"The study was conducted from January 2021 to April 2022 in a number of public parks, residential parks in urban areas, major streets and boulevards, and coffee shops in Ho Chi Minh City. The study was performed by using survey forms, taking pictures and collecting samples. Identification of trees was done by morphological comparison and analysis of collected data, and then information was used for landscape design via using professional design softwares. The results showed that 23 species belonging to 20 genera of the Arecaceae family were identified. Public parks had 22/23 species while residential parks, coffee shops and streets had 17/23 species, 8/23 species and 4/23 species, respectively. Trees of the Arecaceae family identified included 16 species with solitary stem and pinnate (69.5%) and 7 species with clustered trunk and palmate (30.5%). Sketchup, Lumion, and Photoshop softwares could be used for conceptual design that combines the palm trees and other species in the landscape.","PeriodicalId":250563,"journal":{"name":"The Journal of Agriculture and Development","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122078913","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 experiment was carried out to determine effects of potassium and phosphorus fertilizers on growth and yield of the soybean variety VNUAĐ2. The experiment was conducted in the spring season of 2021 and was a split-plot design with 3 replications. Potassium levels included 0, 60, 80 and 100 kg/ha and phosphorous levels were 0, 70, 90 and 110 kg/ha. The effects of different fertilizer rates were determined through growth and development characteristics (plant height, number of leaves, number of nodes, number of branches), leaf area index, number and weight of nodules, yield components and yield. Results showed that phosphorus and potassium fertilizer application resulted in better plant growth and development than no fertilizer application. Also, the average plant height (47.4 to 50.5 cm), number of branches (2.2 to 2.6), number of nodules in the flowering period (51.2 to 56.3) and yields (1.77 to 1.81 tons/ha) with phosphorus application were better than the plant height (46.1 cm), number of branches (2.0), number of nodules (48.1) and yield (1.74 tons/ha) without phosphorus application. Different levels of fertilization affected the growth and development of VNUAĐ2 variety and its yield. The level of application of potassium (80 kg/ha) and phosphorus (90 kg/ha) significantly increased yield components and yield by 10,1 - 50% as compared with no fertilizer application. When compared with other fertilization levels, the application of potassium (80 kg/ha) and phosphorus (90 kg/ha) resulted in better total pod number of 38.1 pods/plant (30.9 - 36.5% higher), number of filled pods of 36.7 pods/plant (6.70 - 31.5% higher), percentage of 3-seeded pods of 12.9% (6.6 - 29.0% higher), individual yield of 11.42 g/plant (0.53 - 14.1% higher) and yield of 1.86 tons/ha (1.1 - 8.8% higher). Thus, the most suitable fertilizer rate for the soybean variety VNUAĐ2 in the spring season was 80 kg/ha of potassium and 90 kg/ha of phosphorus.
{"title":"Effects of potassium and phosphorous on growth and yield of soybean variety VNUAĐ2 in Gia Lam – Ha Noi","authors":"Hang T. Vu, Thang N. Vu","doi":"10.52997/jad.3.05.2022","DOIUrl":"https://doi.org/10.52997/jad.3.05.2022","url":null,"abstract":"The experiment was carried out to determine effects of potassium and phosphorus fertilizers on growth and yield of the soybean variety VNUAĐ2. The experiment was conducted in the spring season of 2021 and was a split-plot design with 3 replications. Potassium levels included 0, 60, 80 and 100 kg/ha and phosphorous levels were 0, 70, 90 and 110 kg/ha. The effects of different fertilizer rates were determined through growth and development characteristics (plant height, number of leaves, number of nodes, number of branches), leaf area index, number and weight of nodules, yield components and yield. Results showed that phosphorus and potassium fertilizer application resulted in better plant growth and development than no fertilizer application. Also, the average plant height (47.4 to 50.5 cm), number of branches (2.2 to 2.6), number of nodules in the flowering period (51.2 to 56.3) and yields (1.77 to 1.81 tons/ha) with phosphorus application were better than the plant height (46.1 cm), number of branches (2.0), number of nodules (48.1) and yield (1.74 tons/ha) without phosphorus application. Different levels of fertilization affected the growth and development of VNUAĐ2 variety and its yield. The level of application of potassium (80 kg/ha) and phosphorus (90 kg/ha) significantly increased yield components and yield by 10,1 - 50% as compared with no fertilizer application. When compared with other fertilization levels, the application of potassium (80 kg/ha) and phosphorus (90 kg/ha) resulted in better total pod number of 38.1 pods/plant (30.9 - 36.5% higher), number of filled pods of 36.7 pods/plant (6.70 - 31.5% higher), percentage of 3-seeded pods of 12.9% (6.6 - 29.0% higher), individual yield of 11.42 g/plant (0.53 - 14.1% higher) and yield of 1.86 tons/ha (1.1 - 8.8% higher). Thus, the most suitable fertilizer rate for the soybean variety VNUAĐ2 in the spring season was 80 kg/ha of potassium and 90 kg/ha of phosphorus.","PeriodicalId":250563,"journal":{"name":"The Journal of Agriculture and Development","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125835448","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}
Optimizing agricultural land use plans to suit natural conditions, economic development, and environmental protection, especially adaptation to climate change has scientific and practical significance. In this paper, we proposed an optimal crop structure transformation plan according to economic, social and environmental objectives based on using a multi-objective linear planning model and GIS technology. The multi-objective linear planning model supported the determination of the optimal land used structure and GIS technology, assisting the planner in the spatial arrangement of land use. This study was carried out in Ninh Phuoc district, Ninh Thuan province. The results obtained imply high practical significance and could expand the research scale for the whole Ninh Thuan province and other localities with similar conditions.
{"title":"Optimizing the planning of crop transformation to adapt to climate change in Ninh Phuoc district, Ninh Thuan province","authors":"Thuy M. Ngo, T. Le, L. K. Nguyen","doi":"10.52997/jad.6.04.2022","DOIUrl":"https://doi.org/10.52997/jad.6.04.2022","url":null,"abstract":"Optimizing agricultural land use plans to suit natural conditions, economic development, and environmental protection, especially adaptation to climate change has scientific and practical significance. In this paper, we proposed an optimal crop structure transformation plan according to economic, social and environmental objectives based on using a multi-objective linear planning model and GIS technology. The multi-objective linear planning model supported the determination of the optimal land used structure and GIS technology, assisting the planner in the spatial arrangement of land use. This study was carried out in Ninh Phuoc district, Ninh Thuan province. The results obtained imply high practical significance and could expand the research scale for the whole Ninh Thuan province and other localities with similar conditions.","PeriodicalId":250563,"journal":{"name":"The Journal of Agriculture and Development","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121584575","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}
Hien Pham, D. Huynh, T. M. Bui, Van H. Phan, Khang Tran
The study was conducted at the Experimental Farm of the Faculty of Agronomy, Nong Lam University, Ho Chi Minh City. The objective of the study was to determine the effects of type and dose of potassium fertilizer on growth and yield of Phan Rang garlic variety. The two-factor experiment was arranged in a randomized complete block design with 8 treatments and 3 replicates. The factor A included 2 types of commercial potassium fertilizers (KCl, K2SO4) and the factor B was 4 different doses of potassium fertilizers (110 kg/ha, 140 kg/ha, 170 kg/ha, 200 kg/ha). The results showed that the application of 200 kg K2SO4/ha increased the plant height (51.8 cm). Bulb diameter (24.7 mm), number of cloves/bulb (12.3 cloves), bulb weight (4.83 g), percentage of dry matter (92%) and bulb yield (1.36 kg/100 pots) were highest in the garlic plants with potassium application at 200 kg/ha.
{"title":"Effects of types and doses of potassium fertilizers on growth and yield of Phan Rang garlic variety (Allium sativum L.)","authors":"Hien Pham, D. Huynh, T. M. Bui, Van H. Phan, Khang Tran","doi":"10.52997/jad.3.04.2022","DOIUrl":"https://doi.org/10.52997/jad.3.04.2022","url":null,"abstract":"The study was conducted at the Experimental Farm of the Faculty of Agronomy, Nong Lam University, Ho Chi Minh City. The objective of the study was to determine the effects of type and dose of potassium fertilizer on growth and yield of Phan Rang garlic variety. The two-factor experiment was arranged in a randomized complete block design with 8 treatments and 3 replicates. The factor A included 2 types of commercial potassium fertilizers (KCl, K2SO4) and the factor B was 4 different doses of potassium fertilizers (110 kg/ha, 140 kg/ha, 170 kg/ha, 200 kg/ha). The results showed that the application of 200 kg K2SO4/ha increased the plant height (51.8 cm). Bulb diameter (24.7 mm), number of cloves/bulb (12.3 cloves), bulb weight (4.83 g), percentage of dry matter (92%) and bulb yield (1.36 kg/100 pots) were highest in the garlic plants with potassium application at 200 kg/ha.","PeriodicalId":250563,"journal":{"name":"The Journal of Agriculture and Development","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131656962","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. Pham, Minh T. L. Tran, T. Phan, Quyen Nguyen, A. Ton, P. V. Nguyễn
In this study, the extracts of Kaempferia rotunda L. were investigated by GC/MS (Gas chromatography/mass spectrometry). There were 25 compounds in tuberous rhizome: alpha-pinene (4.48%), camphene (20.85%), pentadecane (15.47%), camphor (10.15%), alpha terpinolene (1.01%), bornyl acetate (5.65%), alpha-selinene (2.32%), gamma-curcumene (3.22%), heptadecane (3.80%), alpha-cedrene (3.64%), alpha-amorphene (4.92%), alpha-curcumine (2.68%), benzyl-benzoate (7.56%), eucalyptol (1.01%), and some important other compounds. The protocol for in vitro propagation was conducted. The MS medium supplemented with 2 mg/L of Benzyl adenine and 0.2 mg/L of Kinetin gave the highest number of shoots (4.67 shoots/explant). The MS 1/2 medium supplemented with 0.5 mg/L of Naphthalene acetic acid was suitable for plantlet formation (shoot height: 12.05 cm and 14.56 roots/explant). The greenhouse-acclimated in vitro plants reached a 100% survival rate.
本研究采用气相色谱-质谱联用技术对圆形山柰提取物进行了研究。其中-蒎烯(4.48%)、莰烯(20.85%)、戊烷(15.47%)、樟脑(10.15%)、-松油烯(1.01%)、乙酸龙脑酯(5.65%)、-亚麻烯(2.32%)、-姜黄烯(3.22%)、十六烷(3.80%)、-雪松烯(3.64%)、-阿莫菲(4.92%)、-姜黄素(2.68%)、苯甲酸苄酯(7.56%)、桉油醇(1.01%)及其他重要化合物。制定了离体繁殖方案。MS培养基中添加2 mg/L苄腺嘌呤和0.2 mg/L Kinetin的芽数最多，为4.67个芽/外植体。在MS 1/2培养基中添加0.5 mg/L萘乙酸有利于植株形成(茎高12.05 cm, 14.56根/外植体)。经温室驯化的离体植株成活率达到100%。
{"title":"Evaluation of chemical components of rhizomes and micropropagation from Kaempferia rotunda L.","authors":"T. Pham, Minh T. L. Tran, T. Phan, Quyen Nguyen, A. Ton, P. V. Nguyễn","doi":"10.52997/jad.5.04.2022","DOIUrl":"https://doi.org/10.52997/jad.5.04.2022","url":null,"abstract":"In this study, the extracts of Kaempferia rotunda L. were investigated by GC/MS (Gas chromatography/mass spectrometry). There were 25 compounds in tuberous rhizome: alpha-pinene (4.48%), camphene (20.85%), pentadecane (15.47%), camphor (10.15%), alpha terpinolene (1.01%), bornyl acetate (5.65%), alpha-selinene (2.32%), gamma-curcumene (3.22%), heptadecane (3.80%), alpha-cedrene (3.64%), alpha-amorphene (4.92%), alpha-curcumine (2.68%), benzyl-benzoate (7.56%), eucalyptol (1.01%), and some important other compounds. The protocol for in vitro propagation was conducted. The MS medium supplemented with 2 mg/L of Benzyl adenine and 0.2 mg/L of Kinetin gave the highest number of shoots (4.67 shoots/explant). The MS 1/2 medium supplemented with 0.5 mg/L of Naphthalene acetic acid was suitable for plantlet formation (shoot height: 12.05 cm and 14.56 roots/explant). The greenhouse-acclimated in vitro plants reached a 100% survival rate.","PeriodicalId":250563,"journal":{"name":"The Journal of Agriculture and Development","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129641398","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}
This study aimed to determine spraying concentrations of the organic foliar solution-Batraixanh Greco 01S for the production of malabar spinach and mustard greens in Spring in Gia Lam, Ha Noi. Two experiments with malabar spinach and mustard greens were arranged in a randomized complete block design with 5 treatments and 3 replications. In ech experiment, the treatments included 5 different spraying concentrations of the foliar solution (0, 2, 3, 4, 5 mL/L per each spray). The number of sprays for malabar spinach and mustard greens was 4 and 2 times, respectively, and the diluted solution for each spray was 1 L/m2. The results showed that the application of these solutions on malabar spinach and mustard greens significantly increased the growth and yield of these two leafy vegetables (P < 0.05). Malabar spinach sprayed with 3 - 5 mL/L per spray had the highest yield (15.38 - 16.70 tons/ha). The greatest yield of mustard greens was achieved with a spraying concentation of less than 3 mL/L (14.67 tons/ha). Malabar spinach and mustard greens sprayed with 3 mL/L gave the best profit margins of 1.24 and 1.59, respectively.
{"title":"Effects of organic foliar fertilizer concentrations on growth, yield and economic efficiency of malabar spinach and mustard greens","authors":"L. T. Nguyen","doi":"10.52997/jad.2.04.2022","DOIUrl":"https://doi.org/10.52997/jad.2.04.2022","url":null,"abstract":"This study aimed to determine spraying concentrations of the organic foliar solution-Batraixanh Greco 01S for the production of malabar spinach and mustard greens in Spring in Gia Lam, Ha Noi. Two experiments with malabar spinach and mustard greens were arranged in a randomized complete block design with 5 treatments and 3 replications. In ech experiment, the treatments included 5 different spraying concentrations of the foliar solution (0, 2, 3, 4, 5 mL/L per each spray). The number of sprays for malabar spinach and mustard greens was 4 and 2 times, respectively, and the diluted solution for each spray was 1 L/m2. The results showed that the application of these solutions on malabar spinach and mustard greens significantly increased the growth and yield of these two leafy vegetables (P < 0.05). Malabar spinach sprayed with 3 - 5 mL/L per spray had the highest yield (15.38 - 16.70 tons/ha). The greatest yield of mustard greens was achieved with a spraying concentation of less than 3 mL/L (14.67 tons/ha). Malabar spinach and mustard greens sprayed with 3 mL/L gave the best profit margins of 1.24 and 1.59, respectively.","PeriodicalId":250563,"journal":{"name":"The Journal of Agriculture and Development","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126954952","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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