Zmienność barwy trawnika wiechlinowego

• Autorzy: Kozłowski S. , Goliński P. , Golińska B.

Warianty tytułu

EN

Change ability of colour of Kentucky blue-grass lawn

• Języki publikacji: PL

Abstrakty

EN

In an experim ent established in 1999 at the premises of the Agricultural University in Poznań, colour changeability of a Kentucky blue-grass lawn developed from Limousine (G) and Ani (PL) cultivars as well as a mixture of Canadian cultivars called Trawan was investigated. During the period of vegetation, the lawn was fertilised with annual quantities of 200 kg/ha N, 70 kg/ha P2O5 and 120 kg/ha K2O applied in five doses, cut 25 times at the height of 3-4 cm and irrigated with an automatic system TORO. The content of chlorophyll dyes found in leaf blades was used as the evaluation criterion of the lawn colour. In the course of the vegetation period, 20 measurements of chlorophyll a and b were taken employing for this purpose the traditional method by Peach and Tracey. In conditions of systematic cutting and irrigation, the colour of the Kentucky blue-grass lawn showed considerable variations. It appears that the content of chlorophyll in leaf blades is affected by weather conditions as well as nutrients supplied in fertilisers. The highest concentrations of a + b chlorophyll, i.e. the most intensive colour, during the vegetation season was observed in the mixture of Canadian cultivars Trawan. In comparison with Limousine and Ani cultivars, the Canadian mixture was characterised by the highest colour stability in spring and summer. In autumn, the Limousine cultivar exhibited the least variability in concentrations of a + b chlorophyll.

Słowa kluczowe

PL

trawnik; kolor; zmienność

EN

lawn; colour; variability

• Wydawca: Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
• Czasopismo: Przegląd Naukowy Inżynieria i Kształtowanie Środowiska
• Rocznik: 2002
• Tom: Vol. 11, No. 1
• Strony: 130--135
• Opis fizyczny: Bibliogr. 4 poz., rys., tab.

Twórcy

autor

Kozłowski S.

• Department of Grassland Sciences Agricultural University of Poznań 60-637 Poznań ul. Wojska Polskiego 38/2 Poland

autor

Goliński P.

• Department of Grassland Sciences Agricultural University of Poznań 60-637 Poznań ul. Wojska Polskiego 38/2 Poland

autor

Golińska B.

• Department of Grassland Sciences Agricultural University of Poznań 60-637 Poznań ul. Wojska Polskiego 38/2 Poland

Bibliografia

• DOMAŃSKI P. 1998: Metodyka badania wartości gospodarczej odmian roślin uprawnych. 1.4. Trawy darniowe. Wydaw. COBORU, Słupia Wielka.
• ELANDT R. 1964: Statystyka matematyczna w zastosowaniu do doświadczalnictwa rolniczego. PWN, Warszawa.
• KOZŁOWSKI S., GOLIŃSKI P., GOLIŃSKA B. 2002: Barwniki chlorofilowe jako wskaźniki wartości użytkowej gatunków i odmian traw. Zesz. Probl. Post. Nauk Roln., 474 (w druku).
• PEACH K., TRACEY M.V. 1955: Modeme Methoden der Pflanzenanalyse. Band 4, Verlag Parey, Berlin.