{"title":"Evaluation of Sponge Gourd (Luffa cylindrical L.) Inbred Lines for Growth Potential and Fruit Quality in Thua Thien Hue Province, Central Vietnam","authors":"H. Truong, T. T. Phan","doi":"10.17265/2161-6256/2017.10.002S","DOIUrl":"https://doi.org/10.17265/2161-6256/2017.10.002S","url":null,"abstract":"Plants which contain unisexual flowers are subjected to genetic degradation and yield capacity reduction due to the easily cross-pollination. Sponge gourd, one of species of the Cucurbitaceae which is predominantly cross-pollinating, is cultivated to widely use as vegetable in Vietnamese daily meals. The aim of this experiment was to evaluate the growth potential and fruit quality including fruit aroma of sponge gourd inbred lines. Pure line selection has been performed using self-pollinated method, so that sponge gourd lines would be recovered with high yielding and aroma and thereby recommended for further crop system in Thua Thien Hue province, Central Vietnam. The experiment was conducted in a randomized complete block design (RCBD) with three replications during the winter-spring season in 2017. Agronomical data were observed and analyzed on seven inbred lines (1-MN1, 1-MN2, 5-MN1, 7-MN1, 13-MN2, 15-MN1 and 15-MN2) derived from B29 accession (GBVN006904). The results indicated that inbred lines 13-MN2, 1-MN2 and 15-MN1 attained more highly fruit weight and yield compared to the others. Four inbred lines consisting of 5-MN1, 7-MN1, 15-MN1 and 15-MN2 still retained the light aroma after boiling. The inbred lines 1-MN2, 7-MN1, 13-MN2 and 15MN1 are considered for appropriately using in breeding program of new luffa.","PeriodicalId":14977,"journal":{"name":"Journal of agricultural science & technology A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82300710","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}
N. K. Linh, Le Ngoc Phuong Quy, Truong Do Minh Phuong, N. T. An
{"title":"Application of Remote Sensing and GIS Technology in Mapping Partition Saline Intrusion to Paddy Land: A Case Study at Phu Vang District, Thua Thien Hue Province","authors":"N. K. Linh, Le Ngoc Phuong Quy, Truong Do Minh Phuong, N. T. An","doi":"10.17265/2161-6256/2017.10.007S","DOIUrl":"https://doi.org/10.17265/2161-6256/2017.10.007S","url":null,"abstract":"Adapting and restricting salinity intrusion in Vietnam is being concerned by more researchers as well as the local authorities. This study aimed to use remote sensing and geographic information system (GIS) technology for mapping paddy areas and salinity intrusion in spring crop 2015 at Phu Vang district, thereby helping precondition for assessing and monitoring changes in salinity intrusion to serve for salinization management in study area. Based on acquisition imagery, land use map and normalized difference vegetation index (NDVI) were extracted to interpolate the salinity of area by combining the laboratory analysis of collected soil samples from the field. The result showed that there were 1,067.107 ha of salinity land area accounting for 10.04% of the rice land in Phu Vang district, where the moderate salinity level was 180.67 ha and low salinity level was 866.431 ha. The salinity rice land was mainly distributed in Vinh Ha commune, Phu An commune and Phu Dien commune. The salinity in this area ranged from 0.4 mS/cm to 1.41 mS/cm and the moderate salinity was approximately 0.9 mS/cm. Besides, this research also showed that the salinity (electrical conductivity) and the development of vegetation (NDVI) were closely related with each other up to 61.4%.","PeriodicalId":14977,"journal":{"name":"Journal of agricultural science & technology A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75484810","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}
{"title":"Study on Reproductive Performance of Terapon jarbua (Forsskal, 1775) in Tam Giang-Cau Hai Lagoon Systems, Thua Thien Hue Province","authors":"Lê Thị Như Phượng, N. Q. Linh","doi":"10.17265/2161-6256/2017.10.012S","DOIUrl":"https://doi.org/10.17265/2161-6256/2017.10.012S","url":null,"abstract":"Terapon jarbua was collected from Tam Giang-Cau Hai lagoon systems and then their reproductive performances were investigated. Total 342 species were caught by otter trawlers and different fishing gears in marine and Tam Giang-Cau Hai lagoon systems on certain days of each month during period from September 2015 to August 2016 at fishing port. The determination of age was based on composition of the fish: ear, scaly, spine, gill cover and spine and the ovarian histology template. The gonads after being fixed with Bouins solution were cleansed, cut, dyed and put on the observation microscope. Results showed that the sex of Terapon jarbua was nearly clarified at the approximately 1+ age group and participated in reproduction process in the first time at the 1+ age group. The batch and relative fecundity of Terapon jarbua were high. The batch fecundity of Terapon jarbua varied from 239,029 to 420,400 eggs. The relative fecundity capacity fluctuated from 945 to 1,013 of eggs per gram of fish and the mean value by 981 eggs per gram of fish. The spawning season of fish occurred from March to May annually.","PeriodicalId":14977,"journal":{"name":"Journal of agricultural science & technology A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87564408","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}
{"title":"Effects of Bio-probiotic Betel Bokashi on Raising Pigs and Preventing Diarrhea in Young Piglets in Central Vietnam","authors":"N. Q. Linh, T. Thiem","doi":"10.17265/2161-6256/2017.10.010S","DOIUrl":"https://doi.org/10.17265/2161-6256/2017.10.010S","url":null,"abstract":"Infection of Escherichia coli in piglets is identified as one of major problems in pig husbandry. Data were collected from different experiments conducted at farm levels and results showed that the percentage of piglets infected with E. coli was very high. E. coli infected healthy piglets were up to 48.9% and E. coli infected diarrhea piglets accounted for 88.3%. Using Betel Bokashi and antibiotics in treatment brings about different results. Out of 48 infected piglets, 15 piglets were selected for three groups treatment with five each group. Results showed that 92.3% diarrhea piglets treated with Betel Bokashi recovered in 3.85 d, while 100% and 88.23% treated with antibiotics were cured in 4 d and 4.01 d, respectively. Post-treatment piglets in group 3 grew up faster than group 1 and group 2, with gains 231, 218 and 212 g, respectively.","PeriodicalId":14977,"journal":{"name":"Journal of agricultural science & technology A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78433228","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}
N. -. Truong, T. T. Thao, Tran Mai Thi Tuyet, N. Khánh, Trần Quang Khánh Vân
{"title":"Safe Vegetable Consumption in Hue City: A Case Study of Food Safety Situation in Vietnam","authors":"N. -. Truong, T. T. Thao, Tran Mai Thi Tuyet, N. Khánh, Trần Quang Khánh Vân","doi":"10.17265/2161-6256/2017.10.015S","DOIUrl":"https://doi.org/10.17265/2161-6256/2017.10.015S","url":null,"abstract":"","PeriodicalId":14977,"journal":{"name":"Journal of agricultural science & technology A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77185542","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}
Tran Vinh Phuong, N. Khánh, Pham Thi Hai Yen, V. Diễu, N. Huy
{"title":"Effects of Foods on Maturity and Spawning Induction Methods on Ovulation of Rice Field Eel Monopterus albus (Zuiew, 1793) in Thua Thien Hue Province, Vietnam","authors":"Tran Vinh Phuong, N. Khánh, Pham Thi Hai Yen, V. Diễu, N. Huy","doi":"10.17265/2161-6256/2017.10.011S","DOIUrl":"https://doi.org/10.17265/2161-6256/2017.10.011S","url":null,"abstract":"Adult rice field eels with 125.52 ± 27.99 g body weight corresponding to 44.79 ± 5.93 cm in length were maturity cultured in a 5 m cement tank without mud for three months with density 30 eels/m. Eel broodstocks were fed with three types of food including: sea fish (T1), commercial pellet food (T2) and mixed food—50% sea fish and 50% commercial pellet food (T3). Result showed that the maximum gonadosomatic index (GSI) of female eels fed by sea fish (2.89% ± 0.67%) was higher than both commercial pellet food (1.62% ± 0.62%) and mixed food (2.03% ± 0.82%) (P < 0.05), while, GSI of male eels was 1.27% ± 0.31%, 0.68% ± 0.23% and 1.14% ± 0.41% (P > 0.05). Maturity rate of female fed by sea fish (88.91% ± 9.64%) was higher than commercial pellet food (61.12% ± 9.64%) (P < 0.05). The maturity rate of male eels was rather low and there was not significantly different among treatments (P > 0.05). Then. the eels were induced for spawning with two kinds of hormones, including T1: human chorionic ganadotropin (HCG) at 1,500 IU/kg, T2: luteinzing hormone-releasing hormone (LHRH-a) at 150 μg/kg and domperidon 10 mg/kg, and T3: control without hormone. The results of spawning induction methods showed that the reproduction rate of female eels induced by LHRH-a and HCG hormones were higher than that by natural reproduction method (P < 0.05). Others, the survival rate of fry eels after 5 d using natural reproduction method (92.65% ± 2.54%) was higher than both using LHRH-a (67.77% ± 1.91%) and HCG (68.65% ± 1.23%) hormones (P < 0.05). The average diameter of eggs was 3.40-3.41 mm and the length of newly hatched eels was 1.72 ± 0.19 cm.","PeriodicalId":14977,"journal":{"name":"Journal of agricultural science & technology A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85744634","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}
Trần Thị Hương Sen, Phan Thị Phương Nhi, Trinh Thi Sen
{"title":"Salinity Effect at Seedling and Flowering Stages of Some Rice Lines and Varieties (Oryza sativa L.)","authors":"Trần Thị Hương Sen, Phan Thị Phương Nhi, Trinh Thi Sen","doi":"10.17265/2161-6256/2017.10.005S","DOIUrl":"https://doi.org/10.17265/2161-6256/2017.10.005S","url":null,"abstract":"This study used 10 rice lines and varieties, including the salt tolerant variety (Pokkali) and salt susceptible variety (IR29) as control. Experiment for screening rice salinity tolerance at seedling stage was conducted in hydroponic system using five different salinity concentrations (0, 4, 6, 8 and 10 dS/m). Flowering stage was evaluated at the salinity level of 8 dS/m. The experiment was designed in randomized completely block (RCBD) with three replications for each line/variety under non-saline and saline condition. The results showed that the growth of rice lines/varieties was retarded severely with increasing salinity levels, and almost all of leaves were drying and dead completely (score 7 and 9). Plants of IR29 and OM7347 were dead at the electrical conductivity (EC) = 10 dS/m, whereas Pokkali (the tolerant variety) and IR93350 were evaluated at score 5. Salinity stress caused the reduction of overall vigor of rice lines/varieties especially in the pollen germination, fertilization and grain yield. Rice lines/varieties were classified to salinity tolerance levels as following: IR5040, IR93350, IR86385-8D-1-2-B and Pokkali (tolerant); OM8104, IR93340 and IR93343 (moderate susceptible); OM7347, IR87832-303-1-B and IR29 (susceptible).","PeriodicalId":14977,"journal":{"name":"Journal of agricultural science & technology A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85047959","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}
{"title":"Nutritional Value and Sensory Acceptance of Fermented Meat Sauce “Shishibishio” with Neutrase and Flavourzyme Enzyme under Different Salt Concentrations","authors":"Nguyen Thi Hien Trang","doi":"10.17265/2161-6256/2017.10.014S","DOIUrl":"https://doi.org/10.17265/2161-6256/2017.10.014S","url":null,"abstract":"Shishibishio, a Japanese traditional seasoning, is made from fermented meat. The study aimed to evaluate the effect of neutrase 0.5 L alone or flavourzyme 500 L + neutrase 0.5 L on the acceleration of fermentation period and the improvement of nutritional value and sensory acceptance of the final product. The fermentation mixtures (moromi) were prepared by mixing ground pork with salt at one of three concentrations (15%, 20% or 25%), koji (rice fermented with Aspergillus oryzae) and pepper. To accelerate the fermentation of moromi, all treatments were added with neutrase at the begining, then adding with or without flavourzyme after one month. The results showed that neutrase or neutrase + flavourzyme mixture accelerated hydrolysis of meat protein during the fermentation of moromi. Yield, protein recovery, total nitrogen and free amino acid in shishibishio treated with enzymes were significantly greater (P < 0.05) than that of control, especially at 15% salt. The treatment treated with neutrase + flavourzyme was significantly increased (P < 0.05) in free amino acid as compared with treatment with neutrase alone, resulting a better sensory taste and smell, which was mostly accepted. Almost the shishibishio obtained after six fermentative months was acceptable seasonings having a good taste and no unpleasant smell.","PeriodicalId":14977,"journal":{"name":"Journal of agricultural science & technology A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80356152","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}
{"title":"Selection of Sesame Accessions (Sesamum indicum L.) in Thua Thien Hue Province, Vietnam","authors":"T. Nguyen, H. Truong","doi":"10.17265/2161-6256/2017.10.004S","DOIUrl":"https://doi.org/10.17265/2161-6256/2017.10.004S","url":null,"abstract":"The main objective of this study was to select the best accessions for use as potential breeding sources in Thua Thien Hue province. A total of 16 accessions were used in this study, of which three accessions from Ho Chi Minh city in Vietnam, four accessions supplied by Japan, six accessions collected from China, two accessions provided by the United States and one Mè Vàng local accession (control) from Thua Thien Hue. The field experiment was conducted from August 2016 to November 2016 and laid out in a random complete block design (RCBD) for three replications at Huong Long ward, Hue city, Thua Thien Hue province. Each accession was observed 10 plants per replication. The size of each plot was 10 m and the spacing of 25 cm × 10 cm was applied. The results showed that experiment accessions can grow under Thua Thien Hue conditions. Of those, the actual yield of VV12, VDM21, VH12, VDM50, VH01 and VDM45 were higher than the other accessions with 1.65, 1.64, 1.55, 1.54, 1.52 and 1.45 tons/ha, respectively. Oil content of these six accessions was above 50%. Therefore, VV12, VDM21, VH12, VDM50, VH01 and VDM45 can be used for breeding and cultivation under local condition.","PeriodicalId":14977,"journal":{"name":"Journal of agricultural science & technology A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76506701","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}
Phan Thị Phương Nhi, Trần Thị Hương Sen, Trinh Thi Sen, Tran Thi Hoang Đong
{"title":"Evaluation of Agronomic Characteristics, Drought Tolerance and Yield of Some Rice Varieties in Central Vietnam","authors":"Phan Thị Phương Nhi, Trần Thị Hương Sen, Trinh Thi Sen, Tran Thi Hoang Đong","doi":"10.17265/2161-6256/2017.10.001S","DOIUrl":"https://doi.org/10.17265/2161-6256/2017.10.001S","url":null,"abstract":"The aim of the study was to evaluate the drought tolerance, agro-morphological characteristics and yield of 10 rice varieties collected from different locations. In experiment one, drought tolerance of rice varieties under artificial drought condition in the greenhouse was assessed through root and leaf characteristics. In experiment two, the growth and yield of rice varieties in the rainfed rice field was estimated. The results showed that drought has affected the root characteristics, leaf rolling and leaf drying of these varieties. In rainfed rice field of Thua Thien Hue and Quang Nam province, summer-autumn 2016 and winter-spring 2016-2017 crop season, these rice varieties grew and developed well. The growth time was 90-119 d in summer-autumn crop season, while in winter-spring crop season was 107-131 d. The yield of these rice varieties ranged from 37.02 quintals/ha to 56.33 quintals/ha and from 42.33 quintals/ha to 66.60 quintals/ha, respectively. Some rice varieties with high yields in both two crop seasons were OM4900, GSR38, IR93340 and OM7347. It is sugessted to conduct production experiment on a large area in rainfed field for these four varieties to evaluate them objectively and early put them into structure of rice varieties in Central Vietnam.","PeriodicalId":14977,"journal":{"name":"Journal of agricultural science & technology A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89872532","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}