Andreevska, Danica

Preferred name

Andreevska, Danica

Official Name

Andreevska, Danica

Main Affiliation

danicaandreevska@yahoo.com

Now showing 1 - 4 of 4

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Some Quality Properties of Tropical Cucurbits Chayote (Sechium edule (Jacq.) Sw.), Bitter Melon (Momordica charantia L.) and Kiwano (Cucumis metuliferus E. Mey) Produced in the Temperate Climate Conditions of North Macedonia
(Agricultural Academy, Research Institute of Mountain Stockbreeding and Agriculture Troyan, 2020)
Dimitrovski,Trajche
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Gjorgovska, Natasha
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Levkov, Vesna
The tropical crops chayote, bitter melon and kiwano (Cucurbitaceae) were cultivated under the temperate continental subMediterranean climate of Kochani region, North Macedonia. The fresh fruits were tested for their physicochemical characteristics (water content, total dry content, total soluble solids and pH) and microbiological quality using selective media for Salmonella spp., L. monocytogenes, E. coli/Enterobacteriaceae, yeast and molds and plate count agar for total number of bacteria. All parameters were tested in 5 replications. The physicochemical properties of kiwano (total soluble solids of 4.07 %Brix and pH of 4.47) and bitter melon (total soluble solids of 3.77 %Brix) were similar to reports from other regions/countries, while the chayote had a similar water content and pH but lower total soluble solids obtained in our conditions. Concerning the microbiological quality, L. monocytogenes, Salmonela spp. and E. coli were not detected in any of the samples. Non-coli Enterobacteriaceae were found in kiwano and bitter melon. The highest average plate count was found in kiwano (3626 cfu/g), while the highest number of yeasts and molds in bitter melon (3084 cfu/g). The results suggest that chayote, bitter melon and kiwano crop with good fruit quality can be produced under the temperate climate conditions of North Macedonia. Still, the chayote had inferior total soluble solids as compared to the crop produced in tropical and subtropical regions. The research in these crops should continue in regard to the suitability of the different climate-vegetation-soil regions for their cultivation, and specific cultivation techniques in each species in relation to fruit yield and quality.
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Estimation of protein digestibility in bran from different rice varieties.
(University Ss Ciril and Methodius in Skopje, Institute of Animal Science, 2018)
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Gjorgovska, Natasha
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Levkov, Vesna
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Menkovska, Mirjana
Rice is an important cereal crop in the Republic of Macedonia. The process of the post-production of paddy rice results in certain categories of products: brown rice (or cargo), white rice, broken rice, rice hull and rice bran as by-products, which have a wide variety of applications. The focus of our study was to estimate the protein digestibility in rice bran of 8 rice varieties (Prima riska – as standard, San Andrea, Onice, Gloria, Roma, Gala, Halilbey and Gönen). The protein digestibility was determined using in vitro method with pepsin dissolved in HCl. There was a statistically significant difference between the rice varieties in the digestibility of protein and in total fat. The protein digestibility of rice bran ranged from 81.79% in the Turkish variety Gönen to 88.58% in the Italian variety Gloria. These results suggest that rice bran is a good source of protein with good biological value and digestibility
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The weed and weedy rice impact on direct seeded rice production in North Macedonia
(Agricultural Academy of Bulgaria (Земјоделска Академија на Бугарија), 2022)
Dimitrovski, Trajche
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Atanasovska, Katerina
A study from 2017 to 2019 in 10 vilages in the rice producing region of North Macedonia was undertaken to estimate the effect of weed flora on some productive rice properties. The common production technology was implemented. Rice was direct seeded in wet conditons. The weed managent included water bed regulation in combination with herbicide application. The following properties were investigated in three replications: density and infestation of the total weeds, weedy rice and other weed species, crop density, biological, straw and paddy rice yield, harvest index and head rice yield. The results were pooled in 5 groups depending on the weed infestation level. A correlation analysis revaled significant negative effect of the total weeds and the weedy rice component on the crop density, biological yield, harvest index and paddy rice yield. The weeds controled with herbicides were not significanlty correlated and affected the productive properties indirectly as a contributing factor in the total weed density. Low infestation (0.01% to 1.00%) caused drop in paddy rice yield of 6.73%. The most severe cases of weed infestation (15.01% to 25.00%) averaged 100.08 weed tillers/m2 and caused paddy yield drop of 35.30%. These field parcels were located in a region with extensive monoculture, where weedy rice populations constituted 90.68% of the total weed flora, or 90.75 panicles/m2 against 9.33 tillers/m2 from other weed species. Some weedy rice morphotypes were easily distinguished against cultivated rice in field conditions as early as anthesis, while others were more difficult to recognize. This study confirms weedy rice as a serious threat for the direct seeded rice production in the region, and addresses the need to investigate its biology and the most suitable management practices.
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Effect of Orgalife Fertilizer on Some Quality Properties of the Seed and Growth Potential of Two Rice Varieties (Oryza sativa L.) Cultivated in North Macedonia
(Trakya University, Edirne, Turkey, 2021-09)
Spaseva, Brankica
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Mitrushev, Ivo
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The aim of this study was to examine the effect of Orgalife (liquid organic microbial fertilizer based on manure from californian earthworms) on the seeds of two rice varieties, San Andrea and Opale, obtained from three production years: 2018, 2019 and 2020. They were treated with three different concentrations (3.3%, 6.7% and 9.9%) compared to control (distilled water). Germination energy, total seed germination, germination index, seedlings growth (root length, shoot length, dry seedling weight) and vigor index (I and II) were examined. One-way analysis of variance (ANOVA) was carried out and separation of means was performed using the LSD test at P=0.05 and P=0.01 significance level. The values of all treatments for all parameters were compared with the control. Germination energy and total germination for Opale in 2020 showed statistical significance for the 3.3% concentration at P=0.05, while for San Andrea the same significance was noticed only for the germination energy. Germination index for Opale gave statistically significant results only for the 2020 production year at P=0.05. For San Andrea the situation is slightly different where the treatments affected the germination index only for 2018 and 2020. Orgalife treatments increased the vigor index I and II in 2020 for both varieties and for both levels of significance. The length of the seedlings for Opale in 2020 was positively affected by the 3.3% concentration in both levels of significance, while San Andrea in the same year had statistical significance for the 9.9% concentration only for P=0.05. The results for the dry matter showed statistical significance for San Andrea for the 6.7% concentration in 2018. As an overall conclusion, we can say that the use of the Orgalife fertilizer showed to be reasonable for the seedling growth and development, better than the effect on the germination parameters.

Andreevska, Danica

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