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    Differentiation of mixed flower buds in some traditional pear varieties in the region of Skopje
    (Centre for Evaluation in Education and Science (CEON/CEES), 2018)
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    Miskoska-Milevska, Elizabeta
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    Differentiation of mixed flower buds in some traditional pear varieties in the region of Skopje
    (University of Kragujevac, Faculty of Agronomy, 2018)
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    Miskoska-Milevska, Elizabeta
    The results in the present paper are part of the scientific research project “Autochtonous genetic resources of pears in the Republic of Macedonia”. Flower bud differentiation was examined in five traditional pear varieties (‘Carigradsko Avche’, ‘Letna Kajkushka’, ‘Vodenka’, ‘Zimska Kajkushka’ and ‘Zimnica’) in the region of Skopje. In the region of Skopje, the differentiation of mixed flower buds in the traditional pear varieties starts in summer. The primordia of calyx and corolla are formed in the period from the second half of October to early November. In mid-November, stamen primordia are formed, while in late November the primordia of carpels are formed. In winter months, the archesporial tissue develops and microsporogenesis occurs. In the period from January to March, microgametogenesis and pollen grain development take place. The earliest differentiation of flower buds (approximately 7–10 days) and the earliest blooming (about 3-4 days) are tipical of the variety ‘Carigradsko Avche’, compared to the latest varieties ‘Zimska Kajkushka’ and ‘Zimnica’.
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    Fruit characteristics of some traditional pear varieties in the Prespa region
    (Centre for Evaluation in Education and Science (CEON/CEES), 2015)
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    Miskoska-Milevska, Elizabeta
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    Item type:Publication,
    Interaction of environment conditions and genotypes on expression of genetic background in micro-phenophases of strawberry mixed flower bud
    (National Library of Serbia, 2013)
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    Kratovalieva, Suzana
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    Nikolic, Katerina
    <jats:p>The aim of this research is differentiation or micro-phenophases of reproductive organs on two junebearing strawberry (Fragaria x anannassa) varieties senga sengana and pocahontas, depending on climate conditions, rosettes ordering and cultivate manner (orchard mulched on black foil and orchard on bare soil). The beginning of differentiation of flower buds is genetic characteristic depending on climate conditions (insulations, day length, higher midday and night air temperatures from 1.05 till the beginning of differentiation, the sum of rainfalls from the beginning of May until the end of July), order of rosettes and cultivate manner The sum of effective temperatures over 10?C from 1st of May till the beginning of differentiation has no influence on beginning of flower buds differentiation. First morphological changes of the apical meristem were started in the first decade of August that has coincided with the day length of 14 hours and day insulations of 9.3 hours. Micro-phenophases were undergoing almost at the same time in both varieties, only the beginning at pocahontas was 2-3 days earlier. Primary rosettes differ 10-15 days earlier than the secondary rosettes. Plants that grown on black foil had 7-10 days earlier flower bud differentiation compared to those grown on bare soil.</jats:p>
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    Ultrasound influence on coleoptile length at Poaceae seedlings as valuable criteria in prebreeding and breeding processes
    (National Library of Serbia, 2012)
    Kratovalieva, Suzana
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    Srbinoska, Marija
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    Meglic, Vladimir
    <jats:p>The study includes research on the effect of ultrasound on the ability of seed germination and coleoptile development of cereal landraces (fam. Poaceae): oat (Avena sativa L.) brodski, rye (Secale cereale L.) rakotinska, Triticale svetinikolsko and soft wheat (Triticum aestivum L.) govrlevska. The experiment with ultrasound was carried out at frequency of 30-40 kHz on the thermostatic ultrasonic bath. Seeds were sonicated at a constant temperature (25?C) for 15 min. Ultrasound effect is reflected in the length of the coleoptyl and mesocotyl, although in a good deal is genetically predetermined. Coleoptile length was the longest in Triticale (3.3-5.5 cm) and approximately the same lengths are evident in rye (3.0-6.1 cm). Concerning the mesocotyl the longest one (5.525 cm ? 0.697) is recorded at rye, even significantly longer than control of oat and Triticale. Longer coleoptile of sonicated seeds indicates faster seedling development, good water supply and rapid development and emergence of first leaves. Correlation coefficient showed very high (0.821) and high R2 (67,472%) dependence among variables both, in length of coleoptiles (as dependent variable) and mesocotyl (as independent) with low standard error (0.225). With the simple use of ultrasound the germination period could be shorten, water supply more efficient, the sowing periods will be shorten and good yields even under conditions of climate change with increased temperatures could be achieved.</jats:p>
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    Item type:Publication,
    Traditional pear varieties in the west region of Republic of Macedonia
    (Centre for Evaluation in Education and Science (CEON/CEES), 2014)
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    Miskoska-Milevska, Elizabeta
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    Dimovska, Daniela
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    Item type:Publication,
    GENETIC RESOURCES OF TRADITIONAL PEAR VARIETIES IN THE REGION OF SKOPJE
    (Macedonian Academy of Sciences and Arts, 2017-03-27)
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    Miskoska-Milevska, Elizabeta
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    <jats:p>In this paper, we present the results of the phenological characteristics (flowering and ripening time), fruit characteristics (fruit mass, length, width and hardness, length of fruit stalk, number of seeds in fruit, fruit colour and taste and content of stone cells) and chemical characteristics of fruits (soluble dry matter, total sugar and total acids) of 7 traditional pear varieties (Carigradsko avche, Evropsko avche, Letna kajkushka, Karamanka, Vodenka, Zimnica and Zimska kajkushka) in the Skopje region. In the Skopje region, the analyzed pear varieties start to flower in the first decade of April. The pear variety Carigradsko avche flowered at the earliest and Zimnica at the latest. According to the ripening time, the varieties Carigradsko avche, Evropsko avche, Letna kajkushka and Karamanka are summer pear varieties, Vodenka is an autumn variety, Zimnica and Zimska kajkushka are winter varieties. The pear Zimnica had the biggest fruits. The pears Carigradsko avche, Evropsko avche, Karamanka and Vodenka had long fruit stalks. Only the variety Zimska kajkushka contains high quantity of seeds in the fruits. The highest quality fruits, juicy, with very fine to excellent taste, are met in the pears Vodenka and Karamanka. Statistically significant differences among the examined pear varieties for all fruit characteristics were found.</jats:p>