This study was conducted to determine some of the reproductive characteristics of young Chios rams. For the purposes of this study, the data was obtained and used from 30 Chios ram lambs born in 2009 between the ages of 90-360 days. The minimum and maximum values of the testicular diameter (cm) and length (cm), scrotal circumference (cm), scrotal length (cm), testicular volume (cm3) of the Chios ram lambs were 1.59-7.30, 3.05-14.23, 12.00-37.50, 7.00-32.00, 17.39-771.44, respectively. Phenotypic correlations between all testis characteristics were found to be statistically significant (P 0.05). The testicular diameter and volume, scrotal circumference and scrotal length enlarged related with positively the rate of the sperm motility. As a result, estimating the rate of live spermatozoa of the ram lambs by taking morphological measurements at an early age can be useful. Therefore, this information was vulnerable in indirect selection programs.
{"title":"Reproductive Characteristics of Chios Ram Lambs During the First Year of Life in Rural Farm Conditions","authors":"Funda Ataç, M. Kaymakci","doi":"10.15832/ANKUTBD.544225","DOIUrl":"https://doi.org/10.15832/ANKUTBD.544225","url":null,"abstract":"This study was conducted to determine some of the reproductive characteristics of young Chios rams. For the purposes of this study, the data was obtained and used from 30 Chios ram lambs born in 2009 between the ages of 90-360 days. The minimum and maximum values of the testicular diameter (cm) and length (cm), scrotal circumference (cm), scrotal length (cm), testicular volume (cm3) of the Chios ram lambs were 1.59-7.30, 3.05-14.23, 12.00-37.50, 7.00-32.00, 17.39-771.44, respectively. Phenotypic correlations between all testis characteristics were found to be statistically significant (P 0.05). The testicular diameter and volume, scrotal circumference and scrotal length enlarged related with positively the rate of the sperm motility. As a result, estimating the rate of live spermatozoa of the ram lambs by taking morphological measurements at an early age can be useful. Therefore, this information was vulnerable in indirect selection programs.","PeriodicalId":41577,"journal":{"name":"Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2021-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75805355","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}
A. Said, R. Yurtal, M. Cetin, Muhammet Said Gölpinar
Groundwater is a major drinking water resource in arid coastal regions. The groundwater quality of Bosaso city experienced degradation due to rapid urbanization and industrialization. This study was carried out to delineate the spatial distribution of groundwater quality parameters and evaluate groundwater suitability for drinking and irrigation uses. The groundwater samples were collected from Bosaso Plain to determine the pH, electrical conductivity (EC), total dissolved solids (TDS), and sodium and chloride concentrations. To categorize water quality for irrigation purposes, sodium adsorption ratio (SAR) was calculated. Ordinary kriging procedure was performed in order to map the spatial distribution of groundwater quality parameters. The interpretation of laboratory analysis results revealed that the most of groundwater wells in the study area is unsafe for drinking purposes due to high salinity, except for the central area (Biyo Kulule). In terms of irrigation uses, the minor area may be under the risk of alkalinity or sodium hazard. However, all groundwater supply points are not suitable for irrigation due to the salinization risk and can be only used to irrigate high salt-tolerant crops. The final maps show that the groundwater quality decreases from southeast to the north of the plain. This indicates that the groundwater is probably subjected to the seawater intrusion. In this regard, the implementation of a groundwater monitoring program is necessary to achieve concrete results. Nevertheless, the most suitable groundwater quality is found to be at the central part of the Bosaso plain.
{"title":"Evaluation of some groundwater quality parameters using geostatistics in the urban coastal aquifer of Bosaso plain, Somalia","authors":"A. Said, R. Yurtal, M. Cetin, Muhammet Said Gölpinar","doi":"10.15832/ANKUTBD.611787","DOIUrl":"https://doi.org/10.15832/ANKUTBD.611787","url":null,"abstract":"Groundwater is a major drinking water resource in arid coastal regions. The groundwater quality of Bosaso city experienced degradation due to rapid urbanization and industrialization. This study was carried out to delineate the spatial distribution of groundwater quality parameters and evaluate groundwater suitability for drinking and irrigation uses. The groundwater samples were collected from Bosaso Plain to determine the pH, electrical conductivity (EC), total dissolved solids (TDS), and sodium and chloride concentrations. To categorize water quality for irrigation purposes, sodium adsorption ratio (SAR) was calculated. Ordinary kriging procedure was performed in order to map the spatial distribution of groundwater quality parameters. The interpretation of laboratory analysis results revealed that the most of groundwater wells in the study area is unsafe for drinking purposes due to high salinity, except for the central area (Biyo Kulule). In terms of irrigation uses, the minor area may be under the risk of alkalinity or sodium hazard. However, all groundwater supply points are not suitable for irrigation due to the salinization risk and can be only used to irrigate high salt-tolerant crops. The final maps show that the groundwater quality decreases from southeast to the north of the plain. This indicates that the groundwater is probably subjected to the seawater intrusion. In this regard, the implementation of a groundwater monitoring program is necessary to achieve concrete results. Nevertheless, the most suitable groundwater quality is found to be at the central part of the Bosaso plain.","PeriodicalId":41577,"journal":{"name":"Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2021-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77525125","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 translocation of iodine (I) from soil to food chain is largely determined by its adsorption/desorption reaction in soils. In this study, the effects of commercial humates (HA) applied on an Aridisol and indigenous soil organic matter (SOM) on the adsorption and desorption of iodide were investigated. For this reason, 1% and 3% HA (w/w) were incorporated into the whole soil (WS) and organic matter free (OMF) soil samples. Then soil samples were equilibrated with 0, 2, 4, 6, 8 and 10 mg L-1 iodide solution prepared in 0.01 molar CaCl2 for 40 h. The sorption data were better described by Langmuir isotherm (R2= 0.938) than Freundlich isotherm (R2= 0.763). The Langmuir sorption maximum of WS was 19.8 mg kg-1. Freundlich isotherm parameters were n= 0.89 and Kf= 2.165. Sorption maximum of OMF soil significantly increased up to 35.5 mg kg-1. HA applications reduced iodide sorption maximum of both WS and organic OMF soil samples. Desorption rate of the WS ranged between 0-15.3% whereas it decreased 0-0.65% upon removal OM. HA treatments, in general, reduced the desorption rates. However, increasing HA application resulted in higher desorption ratio in both WS and OMF soils. Consequently, either SOM or HA has preeminent role in the adsorption-desorption chemistry in soils.
{"title":"Effect of Soil Organic Matter and Humates on Adsorption and Desorption Chemistry of Iodide in an Aridisol","authors":"M. O. Akca, S. Usta, M. Keçeci, V. Uygur","doi":"10.15832/ankutbd.412628","DOIUrl":"https://doi.org/10.15832/ankutbd.412628","url":null,"abstract":"The translocation of iodine (I) from soil to food chain is largely determined by its adsorption/desorption reaction in soils. In this study, the effects of commercial humates (HA) applied on an Aridisol and indigenous soil organic matter (SOM) on the adsorption and desorption of iodide were investigated. For this reason, 1% and 3% HA (w/w) were incorporated into the whole soil (WS) and organic matter free (OMF) soil samples. Then soil samples were equilibrated with 0, 2, 4, 6, 8 and 10 mg L-1 iodide solution prepared in 0.01 molar CaCl2 for 40 h. The sorption data were better described by Langmuir isotherm (R2= 0.938) than Freundlich isotherm (R2= 0.763). The Langmuir sorption maximum of WS was 19.8 mg kg-1. Freundlich isotherm parameters were n= 0.89 and Kf= 2.165. Sorption maximum of OMF soil significantly increased up to 35.5 mg kg-1. HA applications reduced iodide sorption maximum of both WS and organic OMF soil samples. Desorption rate of the WS ranged between 0-15.3% whereas it decreased 0-0.65% upon removal OM. HA treatments, in general, reduced the desorption rates. However, increasing HA application resulted in higher desorption ratio in both WS and OMF soils. Consequently, either SOM or HA has preeminent role in the adsorption-desorption chemistry in soils.","PeriodicalId":41577,"journal":{"name":"Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72532101","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}
Popularity of pomegranate fruit has increased in recent years because of its health benefit content, economic value and medicinal characteristics. Since pomegranate fruit is perishable species, prolonging storage life, keeping fruit quality during storage and marketing period with minimum quality and quantity loss after harvest are essential. Influence of salicylic acid treatments on some quality properties in ‘Hicaznar’ cultivar fruit were investigated in the current study. After harvest at commercial maturity, fruit were exposed to salicylic acid (SA) treatments. Controls (C1) were untreated. The other groups were dipped into a solution containing 0.01% Tween 20 (C2), 0.01% Tween 20+2 mM SA (SA1), and 0.01% Tween 20+4 mM SA (SA2). Then fruit were stored at 5±1 °C temperature, 85-90% relative humidity for 120 days. Changes in fruit skin and aril color, soluble solids content, titratable acidity, weight loss and chilling injury rate total phenolic content, antioxidant activity were followed at 60 days intervals. Neither SA1 nor SA2 affected total phenolic content and antioxidant activity levels of fruit. But, both treatments helped to maintain C* values in arils and skin, titratable acidity and soluble solids content. Since SA2 treatment significantly reduced chilling injury symptoms during cold storage period of 120 days, it could be considered as promising postharvest technology.
石榴因其保健功效、经济价值和药用特性，近年来越来越受到人们的青睐。石榴果实是易腐烂的品种，延长贮藏期，在贮藏和销售期间保持果实品质，尽量减少采收后的质量和数量损失是至关重要的。研究了不同水杨酸处理对“海卡兹纳”品种果实部分品质特性的影响。在商业成熟收获后，将果实暴露于水杨酸(SA)处理下。对照组(C1)未经治疗。其余各组分别浸于含有0.01% Tween 20 (C2)、0.01% Tween 20+ 2mm SA (SA1)和0.01% Tween 20+ 4mm SA (SA2)的溶液中。温度5±1℃，相对湿度85-90%，贮藏120 d。每隔60 d对果皮和假种皮颜色、可溶性固形物含量、可滴定酸度、失重率和冻害率、总酚含量、抗氧化活性的变化进行观察。SA1和SA2均不影响果实总酚含量和抗氧化活性水平。但是，这两种处理都有助于维持韧皮和表皮的C*值、可滴定酸度和可溶性固形物含量。在120天的冷库期，SA2处理显著降低了冷害症状，是一种很有前途的采后处理技术。
{"title":"Postharvest Salicylic Acid Treatment Influences Some Quality Attributes in Air-Stored Pomegranate Fruit","authors":"N. Güneş, M. Yıldız, Burak Variş, Ö. Horzum","doi":"10.15832/ankutbd.549669","DOIUrl":"https://doi.org/10.15832/ankutbd.549669","url":null,"abstract":"Popularity of pomegranate fruit has increased in recent years because of its health benefit content, economic value and medicinal characteristics. Since pomegranate fruit is perishable species, prolonging storage life, keeping fruit quality during storage and marketing period with minimum quality and quantity loss after harvest are essential. Influence of salicylic acid treatments on some quality properties in ‘Hicaznar’ cultivar fruit were investigated in the current study. After harvest at commercial maturity, fruit were exposed to salicylic acid (SA) treatments. Controls (C1) were untreated. The other groups were dipped into a solution containing 0.01% Tween 20 (C2), 0.01% Tween 20+2 mM SA (SA1), and 0.01% Tween 20+4 mM SA (SA2). Then fruit were stored at 5±1 °C temperature, 85-90% relative humidity for 120 days. Changes in fruit skin and aril color, soluble solids content, titratable acidity, weight loss and chilling injury rate total phenolic content, antioxidant activity were followed at 60 days intervals. Neither SA1 nor SA2 affected total phenolic content and antioxidant activity levels of fruit. But, both treatments helped to maintain C* values in arils and skin, titratable acidity and soluble solids content. Since SA2 treatment significantly reduced chilling injury symptoms during cold storage period of 120 days, it could be considered as promising postharvest technology.","PeriodicalId":41577,"journal":{"name":"Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90952292","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 present study aimed to investigate the effects of sodium silicate (Si) and methyl jasmonate (MeJA) on the pigments and antioxidant activity of tomato, under salinity stress. For this purpose, completely randomized factorial design with three factors including three levels of salinity (0, 4 and 6 dS m-1), Si (0, 4 and 8 mM) and MeJA (0, 5 and 7.5 μM), and three replications was used. The present study displayed that the increase in salinity level reduced chlorophyll index, fluorescence, and vitamin C; however, the catalase (CAT) and ascorbate peroxidase (APX) activities increased. MeJA and Si enhanced the chlorophyll index and vitamin C at different salinity levels, respectively. CAT and APX decreased when the salinized plants were treated with MeJA and Si. MeJA and Si may act to mitigate the adverse effect of salinity stress by reducing the H2O2 production. Finally, it can be concluded that MeJA and Si partially offset the adverse impacts of salinity stress.
{"title":"The Effect of Sodium Silicate and Methyl Jasmonate on Pigments and Antioxidant Activity of Tomato (Solanum lycopersicum L.) Under Salinity Stress","authors":"M. Arvin","doi":"10.15832/ankutbd.561603","DOIUrl":"https://doi.org/10.15832/ankutbd.561603","url":null,"abstract":"The present study aimed to investigate the effects of sodium silicate (Si) and methyl jasmonate (MeJA) on the pigments and antioxidant activity of tomato, under salinity stress. For this purpose, completely randomized factorial design with three factors including three levels of salinity (0, 4 and 6 dS m-1), Si (0, 4 and 8 mM) and MeJA (0, 5 and 7.5 μM), and three replications was used. The present study displayed that the increase in salinity level reduced chlorophyll index, fluorescence, and vitamin C; however, the catalase (CAT) and ascorbate peroxidase (APX) activities increased. MeJA and Si enhanced the chlorophyll index and vitamin C at different salinity levels, respectively. CAT and APX decreased when the salinized plants were treated with MeJA and Si. MeJA and Si may act to mitigate the adverse effect of salinity stress by reducing the H2O2 production. Finally, it can be concluded that MeJA and Si partially offset the adverse impacts of salinity stress.","PeriodicalId":41577,"journal":{"name":"Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74943657","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 present study aimed to evaluate the effects of different doses of gamma radiation on some physiological characters of onion genotypes and the expression of PAL gene in the best interaction of gamma irradiation dose and onion genotype treatment. To this aim, four onion genotypes (White-Qom, White-Neyshabour, Red-Ridge- Lump, and Red-Ray-Corrugated) irradiated at 0, 30, 60, 90, 120, and 150 Gy. After four months of storage (at 10-15 °C and 70% relative humidity), the effects of gamma rays on the dry matter (DM), protein content, phenylalanine ammonia lyase (PAL) and peroxidase (POD) were investigated. In addition, the expression of PAL gene in the best interaction of gamma irradiation dose and onion genotype treatment was assessed. The result indicated that POD activity was increased by most of the gamma irradiation levels; however, the protein content and PAL activity were decreased. Moreover, dry matter content was found to be highly genotype-dependent. A linear regression (R2= 0.82) between PAL activity and gamma irradiation levels, was observed. PAL activity decreased with increasing in gamma irradiation level, while the expression rate of PAL gene was not significantly changed between irradiated and non-irradiated control, indicating that the radiation might not have direct effects on the gene regulatory elements. These results suggest that gamma irradiation could reduce the PAL activity possibly by controlling abiotic stress sources such as fungal and bacterial stresses.
{"title":"Physiological Responses of Gamma-Irradiated Onion Bulbs during Storage","authors":"M. Ahmadi","doi":"10.15832/ankutbd.559604","DOIUrl":"https://doi.org/10.15832/ankutbd.559604","url":null,"abstract":"The present study aimed to evaluate the effects of different doses of gamma radiation on some physiological characters of onion genotypes and the expression of PAL gene in the best interaction of gamma irradiation dose and onion genotype treatment. To this aim, four onion genotypes (White-Qom, White-Neyshabour, Red-Ridge- Lump, and Red-Ray-Corrugated) irradiated at 0, 30, 60, 90, 120, and 150 Gy. After four months of storage (at 10-15 °C and 70% relative humidity), the effects of gamma rays on the dry matter (DM), protein content, phenylalanine ammonia lyase (PAL) and peroxidase (POD) were investigated. In addition, the expression of PAL gene in the best interaction of gamma irradiation dose and onion genotype treatment was assessed. The result indicated that POD activity was increased by most of the gamma irradiation levels; however, the protein content and PAL activity were decreased. Moreover, dry matter content was found to be highly genotype-dependent. A linear regression (R2= 0.82) between PAL activity and gamma irradiation levels, was observed. PAL activity decreased with increasing in gamma irradiation level, while the expression rate of PAL gene was not significantly changed between irradiated and non-irradiated control, indicating that the radiation might not have direct effects on the gene regulatory elements. These results suggest that gamma irradiation could reduce the PAL activity possibly by controlling abiotic stress sources such as fungal and bacterial stresses.","PeriodicalId":41577,"journal":{"name":"Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88318370","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 is aimed to examine the domestic tractor market share with time series analysis to forecast the future probabilities with the help of the models which are created according to the Box-Jenkins method. The study was planned for year 2010, based on 5 different domestic tractor brands which are separately estimated for the domestic tractor market and included the total tractor numbers. It has been observed that the projected value of tractor companies whose market shares are estimated by time series analysis and the total tractor number are very close to their actual values.
{"title":"Domestic Tractor Market Share Estimation by Time Series Analysis Method","authors":"M. Güner, Burcu Hamleci","doi":"10.15832/ankutbd.497236","DOIUrl":"https://doi.org/10.15832/ankutbd.497236","url":null,"abstract":"This study is aimed to examine the domestic tractor market share with time series analysis to forecast the future probabilities with the help of the models which are created according to the Box-Jenkins method. The study was planned for year 2010, based on 5 different domestic tractor brands which are separately estimated for the domestic tractor market and included the total tractor numbers. It has been observed that the projected value of tractor companies whose market shares are estimated by time series analysis and the total tractor number are very close to their actual values.","PeriodicalId":41577,"journal":{"name":"Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74515921","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}
In this study, a picker system with a belt-pulley mechanism, which can be used in sesame harvesting only to aim grabbing the plant stems, was designed and manufactured. In addition, the optimum working criteria were determined in laboratory conditions. To this aim, catching efficiency of the picker was evaluated statistically depending on different pulley diameters (155, 185 and 210 mm), belt speeds (0.55, 0.66 and 0.77 m s-1) and belt gaps (0 and 5 mm). The catching efficiency increased as the pulley diameter, the belt speed and the belt gap increased. The picking system was found to be successful on catching the plant stems. Furthermore, the coefficient of friction between the plant body and the catching belt was determined according to the stem moisture content. As the stem moisture content decreased, a slight decrease was observed in the coefficient of friction between the belt material and the stem.
本研究设计并制造了一种带皮带轮机构的采摘系统，该采摘系统可用于芝麻收获，仅用于瞄准抓取植物茎。并在实验室条件下确定了最佳工作准则。为此，根据不同皮带轮直径(155、185和210 mm)、皮带速度(0.55、0.66和0.77 m s-1)和皮带间隙(0和5 mm)，对采摘机的捕获效率进行了统计评估。捕获效率随皮带轮直径、带速和带隙的增大而增大。发现采摘系统在捕获植物茎上是成功的。根据茎部含水量确定了植物体与捕集带之间的摩擦系数。随着阀杆含水率的降低，皮带材料与阀杆之间的摩擦系数略有下降。
{"title":"Development and Analysis of a Belt Picking System for Sesame (Sesamum indicum L.) Harvesting","authors":"Selçuk Uğurluay, Gizem Cardak","doi":"10.15832/ankutbd.555869","DOIUrl":"https://doi.org/10.15832/ankutbd.555869","url":null,"abstract":"In this study, a picker system with a belt-pulley mechanism, which can be used in sesame harvesting only to aim grabbing the plant stems, was designed and manufactured. In addition, the optimum working criteria were determined in laboratory conditions. To this aim, catching efficiency of the picker was evaluated statistically depending on different pulley diameters (155, 185 and 210 mm), belt speeds (0.55, 0.66 and 0.77 m s-1) and belt gaps (0 and 5 mm). The catching efficiency increased as the pulley diameter, the belt speed and the belt gap increased. The picking system was found to be successful on catching the plant stems. Furthermore, the coefficient of friction between the plant body and the catching belt was determined according to the stem moisture content. As the stem moisture content decreased, a slight decrease was observed in the coefficient of friction between the belt material and the stem.","PeriodicalId":41577,"journal":{"name":"Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89429197","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 was designed to determine the ideal dosages of marigold (Tagetes erecta) and synthetic carotenoid in blue streak hap (Labidochromis caeruleus) and pindani (Pseudotropheus socolofi) fry (Cichlidae), and to compare effects on the growth and skin coloration. In the first experiment, the blue streak hap and pindani fry fed with different levels of water-soluble marigold flower meal (0, 2, 4, 6, 8, 10 and 12%) were tested for 30 days to find the optimum skin coloration and growth parameters. Then, in the experiment, the most effective doses of water-soluble marigold flower meal (2, 4, 8%) which obtained from the first experiment were compared with the different synthetic carotenoid dosages (50, 100 and 150 mg kg-1) for 30 days. At the end of the first experiment, weight gain and the skin coloration degrees for both fish species were increased significantly by supplementation of 4% water-soluble marigold flower meal supplemented diet (P<0.05). In the second experiment, 50 and 100 mg kg-1 of synthetic carotenoid and 4% water-soluble marigold flower meal supplementation showed better performances concerning growth and skin coloration (P<0.05). This study showed that the 4% water-soluble marigold flower meal could be used as an alternative and useful pigmentation source for blue streak hap and pindani.
{"title":"Effects of marigold (Tagetes erecta) and synthetic carotenoid on growth performance and skin coloration of blue streak hap (Labidochromis caeruleus) and pindani (Pseudotropheus socolofi) fry (Cichlidae)","authors":"Nuran Çavdar, Mevlüt Aktaş, E. Genç","doi":"10.15832/ankutbd.523112","DOIUrl":"https://doi.org/10.15832/ankutbd.523112","url":null,"abstract":"This study was designed to determine the ideal dosages of marigold (Tagetes erecta) and synthetic carotenoid in blue streak hap (Labidochromis caeruleus) and pindani (Pseudotropheus socolofi) fry (Cichlidae), and to compare effects on the growth and skin coloration. In the first experiment, the blue streak hap and pindani fry fed with different levels of water-soluble marigold flower meal (0, 2, 4, 6, 8, 10 and 12%) were tested for 30 days to find the optimum skin coloration and growth parameters. Then, in the experiment, the most effective doses of water-soluble marigold flower meal (2, 4, 8%) which obtained from the first experiment were compared with the different synthetic carotenoid dosages (50, 100 and 150 mg kg-1) for 30 days. At the end of the first experiment, weight gain and the skin coloration degrees for both fish species were increased significantly by supplementation of 4% water-soluble marigold flower meal supplemented diet (P<0.05). In the second experiment, 50 and 100 mg kg-1 of synthetic carotenoid and 4% water-soluble marigold flower meal supplementation showed better performances concerning growth and skin coloration (P<0.05). This study showed that the 4% water-soluble marigold flower meal could be used as an alternative and useful pigmentation source for blue streak hap and pindani.","PeriodicalId":41577,"journal":{"name":"Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81243978","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}
Kefir is a probiotic, dairy product produced by the fermentative activity of a diverse range of lactic acid bacteria, acetic acid bacteria, and yeast. In this study, we revealed the antimicrobial spectra of five types of kefir supernatants (EG, AN, KF, KY and SD) from different regions of Turkey fermented for 24 and 48 h against seven plant pathogenic bacteria and one bacterial biocontrol agent in vitro and in vivo for the first time. In vitro, antibacterial activity was investigated by the disk diffusion agar method. Their antibacterial potencies varied according to the type of kefir and the fermentation time. Also, we showed that the antimicrobial activity of kefir could be attributable to antimicrobial substances in supernatants rather than the low pH. In vivo, studies using the most potent kefir type on cucumber and common bean with their pathogenic bacteria in the climate chamber showed no remarkable decrease in diseases but revealed an increase in some plant growth parameters. The application resulted in an increase of 22% in shoot fresh weight, 20% in shoot dry weight, 79% in root fresh weight and 113% in root dry weight in common bean, on the other hand, 25% in shoot fresh weight, 34% in root fresh weight and 30% in shoot dry weight in cucumber.
{"title":"Antibacterial Activity of Different Kefir Types Against Various Plant Pathogenic Bacteria","authors":"Bilgin Taskin, A. Akköprü","doi":"10.15832/ankutbd.499790","DOIUrl":"https://doi.org/10.15832/ankutbd.499790","url":null,"abstract":"Kefir is a probiotic, dairy product produced by the fermentative activity of a diverse range of lactic acid bacteria, acetic acid bacteria, and yeast. In this study, we revealed the antimicrobial spectra of five types of kefir supernatants (EG, AN, KF, KY and SD) from different regions of Turkey fermented for 24 and 48 h against seven plant pathogenic bacteria and one bacterial biocontrol agent in vitro and in vivo for the first time. In vitro, antibacterial activity was investigated by the disk diffusion agar method. Their antibacterial potencies varied according to the type of kefir and the fermentation time. Also, we showed that the antimicrobial activity of kefir could be attributable to antimicrobial substances in supernatants rather than the low pH. In vivo, studies using the most potent kefir type on cucumber and common bean with their pathogenic bacteria in the climate chamber showed no remarkable decrease in diseases but revealed an increase in some plant growth parameters. The application resulted in an increase of 22% in shoot fresh weight, 20% in shoot dry weight, 79% in root fresh weight and 113% in root dry weight in common bean, on the other hand, 25% in shoot fresh weight, 34% in root fresh weight and 30% in shoot dry weight in cucumber.","PeriodicalId":41577,"journal":{"name":"Journal of Agricultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74620927","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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