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Mustafa Kemal Üniversitesi Tarım Bilimleri Dergisi
Number of Followers: 0  Open Access journalISSN (Online) 2667-7733 Published by Mustafa Kemal University  [3 journals]
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- The effects of 1-Methylcyclopropane (1-MCP) treatment and modified
atmosphere packaging on storage of ‘Fuerte’ avocado variety
Authors: Canan AYDINLIOĞLU; Ahmet Erhan ÖZDEMİR, Mustafa ÜNLÜ
Abstract: In this study, the effects of 1-Methylcyclopropane (1-MCP) application, modified atmosphere packaging (MAP) and MAP+1-MCP applications on the quality of 'Fuerte' avocados during storage were investigated. Untreated or treated fruits were stored at 6 °C and 85-90% relative humidity for 3 months in the cold storage. CO2 concentrations in the bag, weight loss, appearance, fruit flesh firmness, skin and flesh color, total soluble solid and titratable acidity contents, fruit juice pH value, oil and dry weight contents, fungal decay and physiological disorders were determined in fruit samples removed from cold room monthly during storage. In addition, the fruits removed from the store every month were kept at 20 °C and 70-75% relative humidity for 3 days for their shelf life. According to data, avocados, which untreated and treated with 1-MCP or MAP, had also only 2 months of storage life. Avocado fruits, which were applied MAP+1-MCP for local and distant markets, were successfully stored for 3 months at 6 C and 85-90% relative humidity with preserving their quality. Modified atmosphere storage and 1-MCP treatment had been successful. With the MAP+1-MCP application, the storage period of avocados was extended by 1 month to 3 months. The results show that MAP+1-MCP application will offer a practical way to extend the commercial life of avocados for long and high quality storage.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- New distribution areas and identification characters of Loxostege
sticticalis L. (Lepidoptera: Crambidae)
Authors: Gülay KAÇAR; Erol ATAY, Abdurrahman Sami KOCA, Burhan ŞAHİN
Abstract: In this study, the distribution area, density, and damage of Loxostege sticticalis were determined in this area. In addition, information about the characteristics and identification characters of the male and female is given. The study was conducted in the laboratory and field studies. In field studies, samples were taken from Istanbul, Kocaeli, Sakarya, Düzce and Bolu. The adult density was determined using light traps, sweep-net, and visual control methods. Migratory adults of L. sticticalis were detected on shrubs and herbaceous plants in Bolu, Düzce, Kocaeli, İstanbul, and Sakarya provinces. The adults of the first generation flight from the last week of June to the first half of July, and the second generation was seen from the beginning to the middle of August. Adult densities were found in İstanbul 7-15 adult m-², Kocaeli 7-8 adult m-², Sakarya 10 adult m-², Düzce 10-50 adult m-², and Bolu 5-10 adult m-² in July . Although the first generation of L. sticticalis was seen quite intensely in the region , the second generation considerably decreased. Despite its high density, serious epidemics were caused by this pest in surveyed areas (except for two locations). Loxostege sticticalis was detected first in Bolu, Kocaeli, and Sakarya provinces, and number and distribution areas were determined with the identification characteristics of the pest. This study will form a basis for future studies and contribute to be the control programs.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Spatial erosion suitability analysis for various agricultural crop
classes: Case study of Seyhan River Basin
Authors: Fizyon SÖNMEZ ERDOĞAN; Süha BERBEROĞLU, Mehmet Akif ERDOĞAN
Abstract: This study aims to provide a spatial erosion sensitivity analysis for agricultural crop class in the Seyhan River Basin to exhibit the optimal crop selection according to the erosion sensitivity. In this manner, it is targeted to contribute to the provision of ideal product selection processes according to erosion intensity in order to support soil protection and ecological sustainability. The Revised Universal Soil Loss Equation (RUSLE) method was used for erosion estimation as the first step of the methodology. The factors that were used within the scope of RUSLE were produced as layers in the GIS environment with the help of remote sensing. The annual total erosion in the basin was estimated as the erosion intensity groups. The erosion sensitivity index was produced depending on the soil cultivation needs of the crop classes based on the produced erosion intensity groups. According to the results of the RUSLE erosion modelling carried out within the borders of the Seyhan Basin, it has been determined that the average annual erosion in the basin is 14 tons/ha, and 28% of the basin has moderate, 12% has high and 2% has very high erosion. According to the results of the erosion suitability index produced for each crop class; It has been seen in the Seyhan Basin that pasture, forage legumes, and citrus crop classes have the highest suitability and the fiber, sugar and starch crops crop classes have the lowest suitability for erosion.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Determination of population density and hosts of Tropinota hirta (Poda,
1761) (Coleoptera: Scarabaeidae) on almond (Amygdalus communis L.) in
Adıyaman province
Authors: Abdurrahman Abdulkadir UZUN; Mahmut Murat ASLAN, Kevser SABANCI
Abstract: This study was carried out to determine the population density and hosts of Tropinota hirta (Poda, 1761) (Coleoptera: Scarabaeidae), which is harmful in almond (Amygdalus communis L.) orchards. The study was carried out between 2017 and 2018 in a 300-decare area in Zey village of the central district of Adıyaman province, in a garden consisting of 80% Ferragnes, Ferraduel, and 20% Texas, Nonpareil varieties. In the study, 32 blue basin trap types were placed in four rows to represent the whole garden, with eight traps in each row and 8 m between rows, and 10 m between rows. After the blue basin type traps were filled 1/2 with water, KAPAR flower beetle pheromone was used as a sexual attractant. According to the years, 7531 T. hirta (Poda, 1761) adults were caught in 2017 and 7042 in 2018, totally. As a result of the study, as hosts of T. hirta; Amygdalus communis L., Malus domestica L. Borkh, Prunus avium L., Prunus cerasus L., Pyrus armeniaca L., Pyrus communis L., Cydonia vulgaris L., Sinapis arvensis L., Ranunculus repens L., Taraxacum spp., Lamium amplexicaule L., Vicia narbonensis L., Hypecoum sp. determined. As a result of the observations, it was determined that the first choice of T. hirta among fruit trees was A. communis, while S. arvensis was from weeds. It was determined that T. hirta spent the winter between the cracks in the soil and under the stones.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- The effect of salicylic acid treatments on quality features of mushrooms
(Agaricus bisporus) during cold storage
Authors: Sevil ÜNAL; Hakan BAĞCI, Havvanur ORAL, Ferhan KÜÇÜKBASMACI SABIR
Abstract: In this study, the effects of salicylic acid, which has been used frequently in extending the postharvest life of products in recent years, on the quality of mushrooms during cold storage were investigated. The harvested mushrooms were immersed into the different concentrations of salicylic acid solutions (0, 1, 2 and 4 mM) for three minutes. Physical and biochemical analyses were performed with 5 d intervals during 15 d storage at 4 °C and 90-95% relative humidity room. Salicylic acid treatments were effective on protecting the quality features of mushrooms during the 15 d storage. Salicylic acid treatments reduced weight loss in mushrooms compared to control. In addition, all doses were effective in maintaining firmness, total antioxidant activity and titratable acidity values. However, 2 and 4 mM doses of salicylic acid caused loses in quality as they resulted in browning along with the prolonged storage duration. 1 mM dose of salicylic acid was more suitable on extending the quality of mushrooms as higher doses led to browning on caps.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Determination of some quality and production characteristics of peanut
with different market types (Arachis hypogaea L.) in second crop culture
in the eastern Mediterranean passage zone
Authors: Mustafa YILMAZ
Abstract: This study was carried out in Osmaniye location of Oil Seed Research Institute in 2020-2021 in order to determine some yield and quality characteristics in second crop cultivation of peanuts with different market types in the Eastern Mediterranean transition zone. Eleven different genotypes of Runner (Georgia Green) Virginia (NC 7, Masal, Halisbey, Wilson, Çom, Brantley, Sultan, Düziçi 1) Spanish (Florispan, Nigeria 1) types of peanut were used in the study. In the study, number of pods per plant, 1st quality pod ratio, pod weight per plant, 100 pod and seed weight, shelling percentage, pod yield, oil content and, protein content parameters were investigated. The number of pods per plant is between 20.8 (Nigeria 1) and 51.4 (Düziçi 1); pod weight per plant varied between between 12.3 g (Nigeria-1) and 64.9 g (Halisbey). It was determined that 100 pod weight and 100 seed weights varied between 66.8-289.0 g and 29.6-106.5 g, respectively. Pod yield varied between 1963 kg ha-1 (Nigeria 1) and 4846 kg ha-1 (Düziçi 1). As a result, it was determined that Düziçi 1 genotype, Brantley and Halisbey cultivars came to the fore in terms of the investigated characteristics in the Eastern Mediterranean Passage zone. In the study, while the second crop peanut variety suitable for the Eastern Mediterranean Transition zone was determined, the varieties to be used as breeding material were also determined.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Socio-cultural analysis of olive cultivation in Hatay Province
Authors: İpek SEZER; İsmail YAMAN, Sefer DEVİREN, Erdal DAĞISTAN, Celil TOPLU
Abstract: Scope of this work; In 2019, the characteristics of olive farming enterprises determined by random sampling method in the important districts of Hatay in terms of olive production were examined. It was aimed to analyze the current situation of olive cultivation in Hatay, to determine the technical and socio-cultural structure of farmers and to determine the structural problems of production, and to obtain guiding data about the activity plans of the stakeholder organizations operating in agriculture. For this purpose, through the farmer surveys applied in the field using the Farmer Registration System data of the Ministry of Agriculture and Forestry Türkiye; The socio-demographic characteristics, cultural characteristics, harvest and yield characteristics and the problems of the farmers were determined in the olive enterprises in Altınözü, Antakya, Yayladağı, Kırıkhan, Hassa, Samandağ and Arsuz districts. The results of the study show that although the producers have a certain experience, there is not enough awareness of some technical issues such as pruning and Plant Protection. In thıs study, important data were obtained for R&D organizations and agricultural extension staffnin the region. These data are important in terms of planing training and extension studies for farmers.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Fishery products processing facilities and the socio-economic structure of
their employees in Türkiye: A sectional study from Istanbul
Authors: Leyla ATAMAN; Emre ÇAĞLAK
Abstract: In this study, both the business structure and the socio-economic structures of the employees in 13 active aquaculture processing plants operating in Istanbul were examined and it was aimed to reveal the data in social and economic terms. In the study, a 24-question questionnaire for employees and a 15-question questionnaire to evaluate the business structure were presented. It was seen that 52% of the employees were men and 48% were women and 34.29% were in the 31-40 age range. It was found that 73.14% of the respondents were married and most of them lived in apartments under 120m2. In the multiple compliance analyzes, it was determined that there was a relationship between education level and the number of social media uses, and between monthly income and job satisfaction. It was determined that 31% of the 13 enterprises in the study had an export permit and that the HACCP system was applied in all of them. It was seen that only 38% of the enterprises received state support. The problems and solution proposals of the sector are also put forward in titles. Turkey's aquaculture sector and the processing plants connected to this sector are very important in economic terms. With the two different survey applications used, both a different perspective on employee data and important data on general problems within the scope of the facility were revealed. When the importance of Istanbul and the aquaculture processing sector is considered, the originality of the study is revealed.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Effect of different vermicompost applications on yield and quality of
lettuce (Lactuca sativa L. var. longifolia)
Authors: Saniye Handan KORKMAZ; İrfan Ersin AKINCI
Abstract: This study was conducted to determine the effects of different vermicompost fertilizers on yield, plant characteristics and some quality criteria of lettuce (Lactuca sativa L. var. longifolia cv. Paris Island). In the study, the effects of five different commercial vermicompost (Akme Solidem, Saltfarm, Nanonat, Ecosol, Vermisol); certified organic fertilizer (MOG), fertilizer (NPK) and control application (C-without fertilizer). Three different doses the dose recommended, 15% less than the recommended and 15% more than the recommended, were applied. All vermicompost applications were found to be more effective in terms head weight, marketable head weight, leaf number, discarded leaf number, head height, head diameter, root lenght, root fresh weight, clorophyll content, “L” “a”, “b” ve Croma (except “L” and discarded leaf number) as compared to the control groups. When all of the features are evaluated together, Akme Solidem and Vermisol applications were found to be more successful than other applications.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Evaluation of soil quality for olive groves in Kilis Province
Authors: Tuğba ŞİMŞEK SEMERCİOĞLU; Nilgün KALKANCI, Serkan KÖSETÜRKMEN, Gökhan BÜYÜK, Nevzat ASLAN
Abstract: In olive cultivation, which has an important potential, the reasons for the loss of yield together with periodicity are the plant nutrition situation and water deficiency in the gardens. This study was carried out to determine some physical and chemical properties and nutrient content of olive growing soils in Kilis. Analyzes were made on soil samples (0-30 cm) taken simultaneously from a total of 49 orchards from 40 different villages in Merkez, Musabeyli, Elbeyli and Polateli districts. Available B, Fe, Cu, Zn, Mn analyzes were made in soil samples. 34.7% of the boron content in the soil is low, 65.3% is sufficient, all of the Fe and Cu contents are sufficient, 28.6% of the Zn content is very little, 65.3% is less than 6.1% is sufficient, and in terms of Mn, 26.5% of the soils are sufficient. sufficient, 73.5% was determined to be more. In addition, it was determined that 58.3% and 27.1% of the soils measured in terms of P were insufficient in terms of Mg. It has been determined that there are important plant nutritional problems on B, Zn, P and Mg. Also, it has been determined that most of the soils in terms of manganese are above the limit values. Considering the results of this study, the necessity of applying Zn and B fertilizers from the soil or leaves has emerged in olive orchards in Kilis.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- The population fluctuation of European grapevine moth, Lobesia botrana
(Denis & Schiffermüller) (Lepidoptera: Tortricidae) in a vineyard in
Antalya
Authors: Mehmet KEÇECİ
Abstract: European grapevine moth, Lobesia botrana (Denis & Schiffermüller) (Lepidoptera: Tortricidae) is the most serious pest of vineyards on a worldwide scale. The study aimed to determine the adult and larval population fluctuations and the generation number for the control of the L. botrana. The present study was conducted in a 1 ha vineyard in Serik district of Antalya province during 2014 and 2015. After the first adult in traps, adult and larval population of pest monitored, weekly. The study findings revealed that L. botrana adults were initially observed in nature in mid-March and remain active for almost eight months in both years. The second peak in the adult count was observed on June 2 and June 12, in 2014 and 2015, respectively. The highest adult density was observed on July 7, 2014 (72.5 adults trap-1) and July 14, 2015 (54 adults trap-1)) during the third peak. The highest larval count was determined on July 14, 2014 (1.72 larva bunch-1) and on July 22, 2015 (1.45 larva bunch-1). The data obtained show that L. botrana gives four full generations in Antalya province conditions. Based on the data, it could be suggested that pest population could partially generate a fifth generation in September. It is recommended to consider the determined second and third peak dates in the pest control strategy in Antalya province.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Direct and indirect contributions of internal and external quality traits
on egg weight of Shika Brown layer using Path Coefficient Analysis
Authors: Emmanuel Abayomi ROTIMI; Babba Hussaina USMAN, Dauda GAMBO
Abstract: Path analysis procedure is a statistical procedure that can be applied to evaluate direct and indirect contributions of independent variables to the dependent variables for better understanding of the relationships between egg quality traits. One hundred and twenty (120) eggs, collected from Shika Brown layers, were used to evaluate the direct and indirect effects of internal and external egg quality parameters on egg weight of Shika Brown layers using Path analysis procedure. Data obtained on individual egg include the following; egg weight (EWT), egg length (ELT), egg width (EWD), shell thickness (STK), shell weight (SWT), albumen weight (AWT) and yolk weight (YWT). Correlation coefficient results show that EWT had a positively significant correlation (P<0.05) with ELT (0.715), EWD (0.758), SWT (0.460) and AWT (0.785). ELT had the greatest direct effect (0.360; P<0.05) on EWT followed by EWD (0.345; P<0.05) while the least of the direct effects on EWT (0.012; P<0.05) was from STK. However, the highest total indirect effect (0.487) on EGW was realised largely via EWD. Therefore, EWT of Shika Brown layer strain had a high positive relationship with ELT, EWD and AWT. The path coefficient analysis revealed that ELT, along with EWD contributed highest direct effect on the EWT. This information could be used in selection programme for the improvement of EWT of Shika Brown layer chickens.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Determination of the efficacies of different phosphites in the management
of tomato bacterial speck disease caused by Pseudomonas syringae pv.
tomato
Authors: Sa Ad Mohamed HAJİ NOUR; Sümer HORUZ
Abstract: This study tested the efficacy of five different phosphites (calcium, copper, magnesium, potassium and zinc/manganese phosphites) and a fungicide Fosetyl-Aluminum to inhibit bacterial speck disease severity caused by Pseudomonas syringae pv. tomato (Pst) on tomato leaves. The phosphites were applied at the recommended doses to the Pst inoculated plants in pots by foliar spraying at one-week intervals for a total of 4 weeks. The plants were kept in a controlled greenhouse under relative humidity (%75-90) and temperature (22-24 °C) until disease symptoms appeared in the control plants. Phosphites and Fosetyl-Aluminum inhibited the Pst symptoms on tomato leaves by 42.1-75.0% in the first and 22.8-90.3% in the second experiments. This study demonstrated the direct influence of phosphites on tomato bacterial speck. The study suggested that phosphites can be an effective alternative for the chemical control of tomato bacterial disease. The bacterial agent, Pst, causes bacterial speck disease in tomatoes. The initial symptoms of the disease are water-soaked, small dark brown spots surrounded by a yellow halo on tomato leaves. Since the pathogen is seed-borne, control of the disease is difficult.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- The changes in total antioxidant capacities of pomegranate and orange
juice in frozen storage versus traditional storage methods
Authors: Kübra KADIOĞLU; Esra YILMAZ, Hatice TATLİ, Rümeysa GÖK, Doğan ÇETİN, Metin KONUŞ, Can YILMAZ, Ceylan FİDAN BABAT
Abstract: The aim of this study was to compare the efficiency of traditional storage, in which a combination of pine needles and cotton seeds are used, and frozen storage (at -20˚C) for pomegranates and oranges in terms of the changes in total antioxidant capacities. Both methods are used, especially in the Mediterranean region, in order to prevent post-harvest loss of agricultural products. The fruits were divided into two groups: traditional storage group which contained the fruits stored as a whole and the frozen storage group, which included fruit juices stored at -20˚C. All the antioxidant capacities were detected by using the 2,2-diphenyl-1- picrylhydrazil method. The first tests were conducted as soon as the fruit samples arrived at the laboratory and the following measurements were performed at the end of the 3rd and 6th months. The results revealed that both storage methods were comparable in their ability to preserve the total antioxidant capacity for 3 months of storage and the traditional storage method can be used reliably for at least three months of storage of fruits. However, the antioxidant activities of pomegranate and orange juices stored for 6 months of conventional method were decreased by 20% and 33%, respectively. During the 6-month period, no statistically significant differences in antioxidant activities were observed between frozen fruit juice samples.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- The effects of boron applications with different doses on the biochemical
properties of myrtle plant (Myrtus communis L.) in in vitro conditions
Authors: Cansu DİNDAR; Adnan YILDIRIM, Civan ÇELİK
Abstract: In this study, shoot tips of the 'sweet myrtle' genotype which is a local variety with black fruits, were used as study material. It was aimed to determine the level of boron (B) that may cause toxicity problems from six different B concentrations added to the growing media and the changes in biochemical properties of myrtle plants under possible boron stress were examined. Six different boric acid (H3BO3) doses (12.4 mg L-1, 18.6 mg L-1, 24.8 mg L-1, 31 mg L-1, 37.2 mg L-1, 43.4 mg L-1) was added to the Murashige and Skoog (MS) medium and the development of the plants was compared with the control group. Only standard B content (6.2 mg L-1) was added in the MS medium to the plants in the control group. As a result of examining the statistical evaluations; the highest proline amount was obtained as 11.6 µg ml-1 in 43.4 mg L-1 application in the media which has the highest H3BO3 concentration, whereas the lowest proline amount was determined as 3.3 µg ml-1 in the control group. Ascorbat peroxidase, superoxide dismutase, peroxidase enzyme activities increased as the application doses increased and the lowest value was determined in the plants in the control group. As the amount of B added to the growing medium increased, a significant increase was observed in the enzymatic antioxidant activities that play a role in the stress mechanism, especially ascorbat peroxidase, catalase, superoxide dismutase, peroxidase. As a result of the study, it was determined that the tolerance limits of the myrtle plant against boron stress were high.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Basin sediment yield estimation using basin morphological characteristics
determined by Geographic Information Systems
Authors: Ercan VAROL; Ahmet İRVEM
Abstract: The morphological characteristics of 47 basins for different rainfall regions of Turkey were determined using Geographic Information Systems (GIS). These features and data taken from flow and sediment monitoring stations were subjected to multiple regression analysis in order to develop basin sediment yield prediction equations for ungauged basins. Basins' morphological characteristics were determined by using ILWIS-GIS software. Areas of the basins, the maximum relief, stream orders and elevations of the stations were determined using GIS. All data were analyzed using the best-subset within the multiple regression statistical method. As a result of analysis, individual sediment yield prediction equations for each region were generated. These regions were found to be appropriate in terms of providing the predetermined information of basin sediment yield for ungauged basins. In this study, sediment yield prediction equations for ungauged basins in the 5 regions (2, 3, 4, 5, and 7) were developed. These equations can be used, in terms of providing sediment data for ungauged basins. However, the prediction equation can not be generated for 1. Region because of insufficient data and equation for region 6 was not proper in terms of Nash-Sutcliffe coefficient. So that the number of observation stations has to be increased for 1. and 6. region.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Effect of basal heating and different substrates on rooting of
semi-hardwood cuttings of ‘Halhalı’ olive cultivar
Authors: Sabahittin ABAY; Adem DAL, Murat ÇELİK, İpek SEZER, Oğuzhan ÇALIŞKAN
Abstract: This study was carried out to determine the effects of basal heating and different substrates on the rooting properties of semi-hardwood cuttings of the ‘Halhalı’ olive cultivar. Wood cuttings of Halhalı' olive variety were rooted in rooting media such as Creek Sand (DK) (1), Pumice (Po) (1), Kokopit (Ko) (1), Perlite (Pe) (1), Creek Sand: Pumice (DK:Po, 1:1), Cocopit:Perlite (Ko:Pe, 1:1), Peat:Perlite (T:Pe, 1:1) and Cocopit: Peat:Perlite (Ko:T:Pe, 1 :1:1) at 22-25°C ambient temperature. In the study, callus rate (%), rooting rate (%), root number (number), root length (cm), shoot number (number) and shoot length (cm) characteristics were investigated. In the study, the basal heating system and the use of different substrates had significant effects on the rooting properties of semi-hardwood cuttings in the ‘Halhalı’ cultivar. The highest callus rate (45.00%), number of roots (4.66 pieces), and rooting rate (22.5%) were obtained from the basal heating system. Besides, in the ‘Halhalı’ cultivar, the highest rooting rate was determined in heated Ko+Pe (35.00%), DK+Po (34.17), and DK (32.50%) substrates. As a result, DK+Po and DK substrates can be preferred in the rooting of semi-hardwood cuttings in the ‘Halhalı’ cultivar since they are more economical than the Ko+Pe mixture.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Molecular characterization of some parsley (Petroselinum crispum Mill.)
genotypes
Authors: Ömer Faruk COŞKUN; Yakup Fevzi GÜNDÜZ, Seher TOPRAK, Kazım MAVİ
Abstract: Parsley (Petroselinum crispum Mill.), a vegetable whose leaves are consumed, has many benefits for human health. The first step of parsley breeding is the characterization of existing genotypes. In this study, genetic diversity of 12 different parsley genotypes was determined by ISSR (Inter Simple Sequence Repeat) marker system. In the study, 41 of the 130 bands obtained from 16 ISSR primers were found to be polymorphic. The similarity coefficients ranged from 0.86–0.99 for ISSR. The average polymorphism was 31.5% and the number of bands varied between 4 and 14. While the genotypes that are genetically closest to each other were determined as the 5th and 6th genotypes, the most distant genotypes were the 3rd and 8th genotypes. Findings from the present study showed that there were genetic variations among the parsley genotypes examined. The obtained data will enable more effective utilization of the parsley genotypes, the genetic differences of which have been determined for the future breeding programs.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Determination of salinity tolerance levels of some eggplant rootstock
candidates
Authors: Şeyma SARIBAŞ; Ahmet BALKAYA, Dilek KANDEMİR, Hakan ARSLAN
Abstract: This study aimed to determine the resistance levels of eggplant rootstocks, which were salt stress tolerant under controlled conditions, of interspecies hybrid eggplant rootstock candidates that stand out in terms of many characteristics. As genetic material in the research, 8 interspecies hybrid eggplant rootstock candidates (Solanum melongena x Solanum aethiopicum) developed within the scope of SAN-TEZ Project no. 0832.STZ.2014 was evaluated. In addition, AGR-703 and AGR-704 commercial hybrid eggplant rootstocks were used. Karabey F1 variety was used as a scion in obtaining grafted plants. It was determined that grafted and ungrafted eggplant plants, subjected to salt stress, decreased at varying rates compared to control plants, depending on the increased salt level in terms of the criteria examined. The salt stress created by different salt doses adversely affected the growth and development of grafted and ungrafted eggplant plants. However, these adverse reactions differed depending on rootstock/scion combinations. In conclusion, it was determined that the grafted eggplant genotypes performed better than the ungrafted Karabey variety. The best-performing combinations under salt stress conditions were determined to be AGR-704/K commercial rootstock/scion combination and RS-5/K and RS-7/K rootstock/scion combinations. As a result of the research, It was concluded that rootstock use is an effective control method against soil-based biotic factors and abiotic stress factors: It can significantly reduce the adverse effects of salt stress.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
- Effect of the application of chemical fertilizer and different organic
substances on some properties of soil in annual ryegrass cultivation
Authors: Hasan Can DEMİRAY; Altıngül ÖZASLAN PARLAK, Mehmet PARLAK
Abstract: The application of chemical fertilizer and different organic substances into the soil can increase plant yield and improve some physical and chemical properties of soil. A field experiment was conducted for 2 years to determine the effect of the application of chemical fertilizer (ammonium sulphate-21% N), control and different organic substances (farmyard manure, chicken manure, leonardite, biofertilizer, pea + annual ryegrass, mixtures of common vetch + annual ryegrass) on aggregate stability, bulk density, pH, electrical conductivity, organic matter, total N, available P, K, Ca, and Mg concentration of soil at a depth of 0-5 cm and 5-20 cm in annual ryegrass cultivation. The field experiment was established in a randomized complete block design with 3 replications. Some physico chemical analyzes were carried out on the soil samples taken from the study area. Farmyard manure affected the available P and K in the soil at a depth of 0-5 cm of the applications of different organic and inorganic substances. With the application of farmyard manure, the available P and K content of the soil has increased. The application of chemical fertilizer and organic substances did not affect the remaining properties of soils taken from 2 depths. It is suggested that the long term field experiments should be conducted to determine the effect of the application of chemical fertilizer and organic substances on the properties of soil.
PubDate: Fri, 07 Apr 2023 00:00:00 +030
