Sökning: "Ornamental plants"
Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Ornamental plants.
Sammanfattning : The plants in the ancient Roman garden were chosen with deliberation. These choices were ruled by the meaning and associations the plants conveyed to the garden visitors. LÄS MER
2. Dissertatio botanica de Passiflora, quam cum consensu amplis. Facult. Medicae, in Reg. Acad. Upsalensi, præside ... Dn. Doct. Carolo Linnæo ... publice ventilandam sistit Johannes Gustavus Hallman, fil., Holmensis. In audit. Carol. Majori, ad diem XVIII. Decemb. Horis ante meridiem solitis. Anni MDCCXLV
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Sammanfattning : Although low temperature plays an important role in determining agricultural yield, little is known about the effect on the underlying biochemical and physiological processes that influence plant growth. Photosynthesis and respiration are central to plant growth and both processes are heavily affected by temperature. LÄS MER
4. Pesticide use in periurban areas : farmers’ and neighbours’ perceptions and attitudes, and agricultural field influences on pests in nearby garden plants
Sammanfattning : Public concern about pesticide use is very high, although it varies with social, ethical and political factors. In periurban regions, farmers live close to people with other occupations. Thus farming activities such as pesticide spraying may cause tensions. LÄS MER
Sammanfattning : In the North European greenhouses, energy use for climatization accounts for a significant share of the operational costs. Air temperature and humidity are important factors whose control is crucial for assuring high productivity and limited use of energy. LÄS MER