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Articles by Marcel M. DUDA
Total Records ( 4 ) for Marcel M. DUDA
  Cristina Firuta MATEI , Marcel M. DUDA , Marius V. OLAR , Anca Eva ARDELEAN and Mariana Niculina MADAS
  Species from Aggastache genus are part of mint family (Lamiaceae) and their flowers represent a lure for insects (bees, butterflies etc.). The common name of hyssop comes from the plant’s hyssop flavour. Commercially, this plant is considered as having culinary importance. Several varieties of this species were selected in Canada, for their essential oil, which contains methyl chavicol. The species was cultivated in Moldavia, as an experiment, for essential oil production. The herb (Agastache foeniculi herba) is used for therapeutic purposes in treating cardiovascular, nerve and gastrointestinal affections, in treating cold, fever (North America Indies used the infusion for this intent) and as a diaphoretic. It also has antiemetic, antibacterial and antifungal properties. It improves throat pains and cold symptoms. The present study aimed to determine seed germination, by using classical methods- on paper under layer, in Linhardt dishes and in blotting paper envelopes. Seeds were 1, 2 and 3 years old. The results show that seed germination of Agastache foeniculum (Pursh) Kuntze, is influenced by age and external factors (temperature and light). TP (Top of Paper) and BP (Between Paper) methods both influence the germinating faculty.
  Simona VAIDA , Leon Sorin MUNTEAN and Marcel M. DUDA
  In the experimental field of UASVM Cluj-Napoca from Jucu we performed, between 2008-2010, a series of research on the behavior of eight varieties of marigold, in three conditions of soil fertilization with manure. The average yearly air temperature is 10.71 ° C Jucu in 2008, 11.12 ° C in 2009 and 11.21 ° C in 2010 and during the growing season (aprilie-sept.) of 17.70 ° C 19.07 ° C and 18, 08 ° C. In terms of rainfall, 2008 was very dry (less than 150 mm from the annual average), 2009 excessively dry (less than 250 mm annual average) and 2010 was very wet (83 mm more than the annual average). Climatic conditions were favorable to grow marigolds. A series of biometric measurements have been conducted on the eight varieties of marigold, such as waist measurement of the average plant, the production of flowers and drying efficiency, the correlation between average plant size and production. Average plant size in eight varieties of marigold, in 2008-2010 was between 67.44 and 84.78 cm. Production of fresh flowers was between 7400 and 8507 kg / ha. The biggest production of inflorescences was obtained from varieties of “Belezza del Pacifico”, “Cluj 2” and “Starsem 922”, with over 9.000 kg / ha of fresh flowers. Production of Marigold is strongly influenced by genotype and fertilization. The average yield of drying was 6 / 1. Between the average height of marigold plant and production there's a direct link. The increase of production is influenced by the average size of marigold plant.
  Cristina Firuta MATEI , Marcel M. DUDA , Marius V. OLAR , Anca Eva ARDELEAN and Mariana Niculina MADAS
  Agastache foeniculum has its origins in North-America. In Europe has been planted for the first time as a decorative plant in flower gardens (Small E., 2006). For species Agastache foeniculum varies common names have been used: Anise hyssop, Blue giant hyssop, Giant fennel hyssop (Allen Gary, The Herbalist In The Kitchen, 2007). Multiplication of the species can be achieved by transplantation of the seedlings in cellular packages or small containers, 15 to 20 days after seeding (Armitage A.M. and Laushman J.M., 2003). Multiplication of the species can be achieved by transplantation of the seedlings in cellular packages or small containers, 15 to 20 days after seeding. The most recommended temperatures for young plants are bellow 15°C. The plants will bloom at 12-16 weeks after seeding (Armitage A.M. and Laushman J.M., 2003). Separation of the stalks is performed in the spring from mature plants, over 2 or 3 years old. Sowing is done by using young stalks from the base potted in pots in the greenhouse in light shadow. In about 3 weeks the young plants will have their roots formed and they will be ready to be planted in the field in the summer (Falticeanu Marcela, Munteanu N., 2010). During the seedling the experiment took place in the greenhouse, in plastic trays, throughout April and May at temperatures over 20°C. First observations have been made after 7 days when the first 2 leaves sprouted, followed by observations every 7 days as the other leaves were forming. For observations, over 80 plants have been chosen to be measured targeting their hight and the number of leaves. The texture of the soil for obtaining good seedlings of Agastache foeniculum (Pursh) Kuntze has to be clay like. The time needed to form the first pair of leaves at 20°C is 7 days. The next leaves are formed at aprox. the same period of time, 7 days. To obtain the seedling of Agastache foeniculum (Pursh) Kuntze in the greenhouse during April and May we recommend that the temperature should be over 20°C.
  Simona VAIDA , Marcel M. DUDA , Dan I. VARBAN and Sorin MUNTEAN
  In this paper we present results of the research made between 2008-2010 on the influence of cultivation, density and fertilization on the plant’s morphology and leaf production. Experiences had been located in the experimental field of Jucu, CJ. We took four cultivation of artichokes in the study: “Unirea”, “Violet”, “Agrosel 656” and “Chisinau”. They were placed in the experimental field of Jucu - Cluj, made in two densities (3.57 pl/sqm and 2.38 pl/sqm) and three levels of fertilization (unfertilized, fertilized with 20 t/ha farmyard manure and 40 t/ha manure in the fall plowing).
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