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Damage threshold levels for western flower thrips, Frankliniella occidentalis (Perg.) (Thysanoptera: Thripidae) on ornamentals
1993
Frey, J.E. (Swiss Federal Research Station for Fruit Growing Viticulture and Horticulture, Waedenswil (Suisse))
Delan: a valuable tool for Swiss growers
1993
Ruegg, J. | Siegfried, W. (Swiss Federal Research Station for Fruit Growing, Viticulture and Horticulture, Wadenswil (Switzerland))
Poplar resources and breeding in a variable environment. Problems and opportunities in a Chinese-German cooperative project
1993
Weisgerber, H. (Research Inst. for Fast Growing Tree Species and Forest Research Centre, Muenden (Germany, F.R.))
Effect of the scab inoculum and the susceptible parent on resistance to apple scab (Venturia inaequalis) in the progenies of crosses to the scab resistant cv "Florina" [Malus x domestica, symptom class, breeding strategy]
1993
Kellerhals, M. (Federal Research Station for Fruit Growing Viticulture and Horticulture, Waedenswil (Suisse)) | Fouillet, A. | Lespinasse, Y.
Grapevine leaf gas exchange, plant growth, yield, fruit quality and carbohydrate reserves influenced by the grape leafhopper, Empoasca vitis
1993
Candolfi, M.P. (Swiss Federal Research Station for Fruit-Growing, Viticulture and Horticulture, Waedenswil (Switzerland)) | Jermini, M. | Carrera, E. | Candolfi-Vasconcelos, M.C.
Survey of viruses affecting faba bean in Hungary [Vicia faba]
1993
Simay, E.I. (Enterprise for Research and Extension in Fruit Growing and Ornamentals, Budapest (Hungary)) | Beczner, L. (Hungarian Academy of Sciences, Budapest (Hungary). Plant Protection Research Inst.)
In the course of virological studies of faba bean (Vicia faba L.) crops during 1982-1987, seven viruses were identified from samples collected. Identification of Bean Leaf Roll Virus (BLRV) was based on visual symptoms and persistent aphid transmission by Acyrthosiphon pisum (Harris), while Broad Bean Stain Virus (BBSV) was only serologically detected from samples. The others - Bean Yellow Mosaic Virus (BYMV), Alfalfa Mosaic Virus (AMV), Cucumber Mosaic Virus (CMV), Broad Bean True Mosaic Virus (BBTMV) and Pea Enation Mosaic Virus (PEMV) - were investigated both serologically and by host range
Mostrar más [+] Menos [-]Flora of Melbourne | Guide to the indigenous plants of the greater Melbourne area
1993
Gray, Marilyn
[Economic and technical data for sorghum growing (France)]
1993
Jacquin, M. (Institut Technique des Cereales et des Fourrages, Paris (France)) | Maruejouls, B.
High and low fiber diets for growing pheasants
1993
Bagliacca, M. | Paci, G. | Marzoni, M. | Santilli, F. (Pisa Univ. (Italy). Dipartimento di Scienze Anatomiche, Fisiologiche e delle Produzioni Animali) | Calzolari, G. (Ministero delle Risorse Agricole, Alimentari e Forestali, Rome (Italy))
40 pheasants were used for the experiment. Two diets, characterised by a different composition (metabolizable energy 11.7 MJ/kg and 11.0 MJ/kg, crude fibre 6.2% and 12.2%, crude protein 23.5 and 16.0 for diets 1 and 2, respectively), were fed to the birds during the growing-finisher periods. Live weights and gut characteristics (weight, volume and length of the digestive apparatus with the annexed organs and of the different elements and sections: liver, gizzard, small intestine, caeca and colon-rectum) were measured in 91 and 133 days old pheasants. Results showed that the use of the diet containing 12.2% fibre produced lighter pheasants with longer caeca, theoretically more adapted to survive in nature after release | Per la prova sono stati utilizzati 40 fagiani, divisi in due gruppi ed alimentati con due differenti diete: dieta 1 (ad alto contenuto di fibra) fibra weende 12.2%, energia metabolizzabile 11.0 MJ/kg, proteine grezze 16.0%; dieta 2 (a contenuto normale di fibra) fibra weende 6.2%, energia metabolizzabile 11.7 MJ/kg, proteine grezze 23.5%. A 56, a 91 e a 133 giorni tutti i soggetti sono stati pesati e a 91 e a 133 giorni e' stato valutato su un campione lo sviluppo dell'apparato digerente (peso, volume e lunghezza). I risultati hanno mostrato che l'impiego della dieta a piu' alto contenuto di fibra determina una riduzione del peso vivo a parita' di eta' e un maggior sviluppo (lunghezza) dei ciechi. Cio' dovrebbe teoricamente migliorare il tasso di sopravvivenza dei fagiani dopo il rilascio grazie ad un preadattamento degli stessi ad utilizzare alimenti "poveri"
Mostrar más [+] Menos [-]Natural ventilation of greenhouses in Mediterranean areas. Modelling and results Texto completo
1993
Feuilloley, P. | Mekikdjian, C.
Ce document résume les expérimentations et une modélisation de 3 systemes de ventilation statique sur 3 tunnels différents : un tunnel avec des ouvertures mécaniques longitudinales hautes et basses, un tunnel avec des ouvertures latérales et sommitales à ecartement des films, un tunnel avec des ouvertures longitudinales hautes et basses fermés par des gaines gonflables.
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