Faculty of Agricultural Sciences and Food
Permanent URI for this communityhttps://repository.ukim.mk/handle/20.500.12188/2
Browse
42 results
Search Results
- Some of the metrics are blocked by yourconsent settings
Item type:Publication, IMPROVING THE BUDS' WINTER TEMPERATURE RESISTANCE AND CLUSTER CHEMICAL COMPOSITION FROM ‘CARDINAL’ GRAPEVINE USING SOIL AND FOLIAR FERTILIZATION(2024-10) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Seed germination of Calendula officinalis L. under influence of different light conditions(2022)Svjetlana Zeljković, Ivana Kozomara, Jelena Davidović Gidas, Margarita Davitkovska, Zvezda BogevskaThe aim of this study was to examine germination rate and morphological characteristics of English marigold seedlings under influence of different light conditions. Seeds of Calendula officinalis L. were collected from the natural population of the Botanical garden of the University of Banja Luka. Experiment was set up in four replicates for each light treatment. Petri dishes with seeds were placed in growth chamber under artificial white (FLUO) and blue, red, and combination of blue/red (LED) light with 16h/8h photoperiod. Germination energy was tested after 7 days and germination of the seeds was tested after 14 days. Results showed significant difference in germination energy, germination rate, hypocotyl height, root length, and fresh weight. The highest average values of the germination energy and germination rate of the Calendula officinalis L. were recorded under red LED light (32%; 47%) while the lowest values were recorded under blue LED light (1%; 23%). The highest average values of hypocotyl height, root length and fresh weight were recorded also under red LED light (3,70 cm; 6,33 cm; 0,97 g) while the lowest values were recorded under combination of blue/red LED light (1,95 cm; 2,52 cm; 0,28 g). It can be concluded that the use of red LED light is recommended in the seed germination phase, not only for better germination but also for better morphological development. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, EFFECT OF WATER EXTRACT OF ALOE VERA ON GERMINATION AND EARLY GROWTH OF DIANTHUS BARBATUS(2022)Svjetlana Zeljković, Lidija Milojević, Emina Mladenović, Margarita Davitkovska, Zvezda BogevskaThe Sweet William - Dianthus barbatus (L.) is a plant from Caryophyllaceae family. The germination and growth of the plant are important phenological stages, and plant survival depends on them. The seed that has better germination energy also has better vigor, so it is more resistant to stressful conditions during germination. The aim of this study was to examine the possibilities and effectiveness of water extracts of plant species Aloe vera on the seed germination and early growth of Sweet William seedlings - Dianthus barbatus (L.). The experiment was conducted in laboratory conditions at the Faculty of Agriculture, University of Banja Luka and consisted of control (distilled water) and treatment with water extract of Aloe vera. Water extracts were prepared from fresh leaves and experiments were conducted in Petri dishes at 5, 10, and 15%. The temperature in the laboratory was constant at 20°C and the light regime was set to 16h day/8h night. Water extracts of Aloe vera at a concentration of 5% had a positive effect on the seed germination and germination energy, while a concentration of 15% had a positive effect on shoot and root length, and fresh mass of Dianthus barbatus seedlings. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, THE EFFECT OF DIVERSE FERTILIZERS ON THE QUALITY OF BEGONIA SEMPERFLORENS LINK. ET OTTO.(2022)Margarita Davitkovska, Zvezda Bogevska, Gordana Popsimonova, Rukie Agic, Ana Vujošević, Svjetlana Zeljković, Boris DorbićThis research was carried out to analyze the effect of diverse types of fertilizers and concentrations on the morphological features of Begonia semperflorens Link. et Otto., as well as to determine the most appropriate concentration of fertilizer to obtain the highest plant quality. Different types of liquid fertilizers and concentrations were used in this experiment - Agrosal with NPK 10-5-5 + microelements (0.2%; 0.3%; 0.4%), Agrosal with NPK 7-1-5 + microelements (0.2%; 0.3%; 0.4%) and Agrosal with NPK 12-5-7 + microelements (0.2%; 0.3%; 0.4%). For measurement, 30 plants were used per treatment, three months after planting into plastic containers. The following biometric parameters were analyzed: plant height (mm), number of leaves, number of branches, and number of inflorescences. Measurements of biometric parameters showed that the liquid mineral fertilizer Agrosal with NPK 12-5-7 + microelements and a concentration of 0.4% showed the highest average number of branches and number of inflorescences. Agrosal with NPK 12-5-7 + microelements and concentration of 0.3% showed the highest average height of plant and Agrosal with NPK 7-1-5 + microelements and concentration of 0.2% showed the highest average number of leaves. Agrosal with NPK 12-5-7 + microelements and a concentration of 0.4% can be recommended in practice. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, LETTUCE (LACTUCA SATIVA L.) - THE NEGLECTED VEGETABLE IN THE MACEDONIAN PRODUCTION AND TRADE(2022)Gordana Popsimonova, Rukie Agic, Zvezda Bogevska, Margarita DavitkovskaAlthough vegetable production plays a significant role with over 30% of the total crop production output in the Republic of North Macedonia, only a couple of vegetables are treated with due diligence: tomato, pepper (most of it intended for processing), cucumber, and cabbage. Fifteen other vegetables can be found in different data sources, but lettuce is not among them. The only source about the cultivation area and quantity of production is the Ministry of Agriculture Forestry and Water Economy, but this information defers largely from the one that can be obtained from FAOstat. In both cases, the values are negligible low, i.e., below 20 ha in total. In this paper, we have tried to present the realistic status and trends of lettuce import, export, and consumption over ten years and deduct from there the volume and the origin of lettuce production. The results indicate that over 80% percent of the lettuce that is sold on the markets comes from uncertain cultivation practices, especially concerning food safety standards. Considering that lettuce has a tendency to accumulate nitrates, along with microbiological threats, it makes the whole picture even more complex. We propose some soil-less cultivation methods that can be easily adopted by the growers and result in more efficient and safe production. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, IMPACT OF THE DIFFERENT VEGETATION SPACES ON THE YIELD COMPONENTS OF SEEDLESS WATERMELON(2022)Rukie Agic, Gordana Popsimonova, Zvezda Bogevska, Margarita Davitkovska, Besnik ZendeliRecently seedless watermelon production is becoming popular, especially for export, and has significant potential for larger area production. Although the production practices for growing seedless watermelons are similar to those for the production of seeded watermelons, they still differ in certain views, which should be put into focus. The aim of this research is to determine the best vegetation space for the plants (the use of different row and inter-row distances) on the components of yield. For this purpose, an experiment was set up using seedlings from the seedless hybrid Sinrubita F1. The experiment was set up in the Skopje region with a randomized block design, with three variants in four replications. The treatments were as follows: Treatment 1 (control) (3x1.65 m, 2000 plants ha-1); Treatment 2 (3x1.30 m, 2500 plants ha-1) and Treatment 3 (3x0.96 m, 3500 plants ha-1). Several parameters were analyzed: the average number of fruits per plant, the weight of fruit (kg), the diameter of the fruit (cm), the fruit length (cm), the fruit index, and the total yield (t/ha). The biggest fruit (6.97 kg), fruit diameter (21.77 cm), and fruit length (24.29 cm) were determined in the control treatment while the highest fruit number (4.38) and yield (65.05 t ha-1) were obtained in the treatment 2. The fruits of the three treatments had a slightly elliptical shape. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, EVALUATION OF FREQUENTLY GROWN LEAK LANDRACES IN NORTH MACEDONIA(2022)Zvezda Bogevska, Gordana Popsimonova, Rukie Agic, Margarita Davitkovska, Tome Timov, Maja SudimacIn North Macedonia, there is a long tradition of growing leek. The most grown are those with long shaft (pseudostem) or kamus type of leeks. The study aimed to evaluate three local landraces of leek with long shafts (pseudostem): Kumanovski, Veleski, and Strumicki. The experiment was set up in the village of Dobrejci near Strumica, during the season of 2019. A single experimental plot was 12 m2 with a density of 400 plants per plot organized in a complete randomized block design in four replications. During the vegetation period the plant height (cm), the shaft thickness (pseudostem) (mm), leaves number in the shaft (pseudostem), the plant mass (g), length of the shaft (pseudostem) (cm), the shaft mass (pseudostem) (g) and total yield (t ha-1) were measured. According to the results, the thickest shaft (pseudostem) (32.38 mm), the highest number of leaves in the shaft (pseudostem) (11.78), the highest plant mass (460.26g), the highest shaft mass (pseudostem) (285.53 g) and total yield (95.18 t ha-1) were obtained from Kumanovski leek landrace. The highest plants (87.74 cm) had Veleski leek landrace while the longest shaft (pseudostem) (36.35 cm) was observed in the Strumicki leek landrace. It can be concluded that even grown in different climate conditions from its origin, the Kumanovski leek landrace obtained the best results. Further research on these landraces should be taken into consideration. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, LENGTH OF VEGETATION PERIOD AND FRUIT SET IN PEPPER GROWN ON DIFFERENT TYPES OF MULCH(2022)Zvezda Bogevska, Gordana Popsimonova, Rukie Agic, Margarita Davitkovska, Daniela Trajkoska, Maja SudimacMulching is a common practice of covering the soil to make favorable conditions for plant growth, development, and efficient crop production. The study aimed to determine the influence of different mulching materials on some parameters of pepper Kapija type grown in an open field. The experiment was set in the village of Kutretino near Demir Hisar, during the season of 2018. The treatments were as follows: no mulch (bare soil) - as a control treatment, straw mulch, black film mulch, white on black (double face) film mulch, and red film mulch. A single experimental plot was 15 m2 with a density of 100 plants per plot organized in a complete randomized block design in four replications. During the vegetation, there was monitoring of some phenological stages. In addition, on ten plants per replication, the number of flowers and the number of fertilized flowers were recorded. The earlier botanical maturity was in straw mulch and black foil mulch or 153 days after germination. The latest was in red foil mulch or 161 days after germination. The largest number of flowers had the plants from the black foil mulch an average of 11.83 flowers, out of which 10.95 were fertilized, which means that 92.56% of the flowers set fruit. Plants on red mulch had the least number of flowers, 7.33 on average, of which 5.73 were fertilized, leading to 78.17% of fruit set. White on black mulch had the highest percentage of fruit set (93.7%) because of favoring condition. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, DETERMINATION OF POLYSACCHARIDE CONTENT OF AGARICUS MACROSPORUS AND RUSSULA VESCA MUSHROOM EXTRACTS(2022)Monika Stojanova, Dragutin Ðukić, Marina Todor Stojanova, Blažo Lalević, Simin Hagh Nazari, Zvezda BogevskaThe aim of this research was to determine the polysaccharide content of aqueous and ethanolic extracts from Agaricus macrosporus and Russula vesca mushrooms. Generally, aqueous extracts were characterized with higher (p<0.05) glucan content compared to the ethanolic extracts. From the point of the same extract from different mushrooms, can be seen that the extract from R. vesca was characterized with higher values (p<0.05) for most of the analysed parameters, compared to the extract from A. macrosporus. In accordance, both α- and β-glucan had higher (p<0.05) values in the aqueous (3.79%; 15.19%, respectively) as well as in the ethanolic extract (1.61%; 13.23%, respectively) from R. vesca compared to aqueous and ethanolic extract from A. macsorporus. On the other hand, in the aqueous extract from R. vesca was determined higher (p<0.05) monosaccharide content (18.46%) compared to the aqueous extract from A. macsorporus (16.27%). Therefore, it can be concluded that water extraction of mushrooms, especially of Russula vesca, is a successful method by which the most important bioactive polysaccharides (total, α- and β-glucan) can be extracted, as well as a high percentage of monosaccharides. This opens up new possibilities for further use of the extracts in various industries. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Influence of mulching materials on pepper (Capsicum annuum L. ssp. macrocarpum var. longum) characteristics(2021)Bogevska, Z. , Popsimonova, G., Agic, R., Davitkovska M.The experiment was conducted in order to determine the influence of different mulching materials on some parameters of pepper kapiya type grown in an open field. This type of pepper is widely grown in North Macedonia in open field. It is specifically used for processing with more than half of raw materials volume. The experiment was carried out in the village of Kutretino near Demir Hisar, during the season of 2018. The treatments were as follows: no mulch (bare soil) – as control treatment, straw mulch, black film mulch, white on black (double face) film mulch and red film mulch. A single experimental plot was 15 m2 with density of 100 plants per plot organized in complete randomized block design in four replications. During the vegetation period the plant height (cm), number of marketable fruits per plant, fruit length (cm), fruit diameter (cm), fruit mass (g) and total yield (t ha-1) were measured. According to the results the highest plants (58.8 cm), the highest number of marketable fruits per plant (8.45), the longest and widest fruits (16.00 and 8.25 cm, respectively), the highest fruit mass (113.79 g) and the highest yield (63.15 t ha-1) were obtained from plants grown with black foil as mulching material. Taking into consideration the results, it can be concluded that mulching with black film gave the best results for the most of the examined parameters and can be widely used for pepper kapiya type production in open fields.