Abstract
The effects of flurprimidol at the concentration of 7.5 i 15 mg×dm<sup>-3</sup> on the growth and flowering of <i>Pelargonium hortorum</i> 'Omega' were examined in the years 2003 and 2004. Pelargonium plants were sprayed either once or twice; 2 weeks after planting rooted seedlings - first, and next - 2 weeks later. At the beginning, the plants were grown in a greenhouse, and then in a foil tunnel. Flurprimidol at the concentration of 15 mg×dm<sup>-3</sup> increased the number of leaves and intensified their colour, but reduced the plant height and diameter, shortened peduncles lowering their decorative value. 7.5 mg×dm<sup>-3</sup> of the retardant had weaker effects on <i>Pelargonium</i> morphological traits, but resulted in more abundant flowering, compact and proportional conformation and high decorative value.
Highlights
Pomiary wysokoci i rednicy rolin, zawartoci chlorofilu (indeks zazielenienia lici) oraz liczby lici wykonano na pocz1tku kwitnienia pelargonii w 10
The plants were grown in a greenhouse, and in a foil tunnel
Flurprimidol at the concentration of 15 mg×dm 3 increased the number of leaves and intensified their colour, but reduced the plant height and diameter, shortened peduncles lowering their decorative value. 7.5 mg×dm 3 of the retardant had weaker effects on Pelargonium morphological traits, but resulted in more abundant flowering, compact and proportional conformation and high decorative value
Summary
Pomiary wysokoci i rednicy rolin, zawartoci chlorofilu (indeks zazielenienia lici) oraz liczby lici wykonano na pocz1tku kwitnienia pelargonii w 10. Wp3yw fluropirimidolu na cechy morfologiczne, kwitnienie i wartoæ dekoracyjn1 pelargonii rabatowej Pelargonium hortorum 'Omega' W dowiadczeniu przeprowadzonym w 2003 roku fluropirimidol zastosowany w stê¿eniu 15 mg×dm 3 do opryskiwania pelargonii rabatowej 'Omega' spowodowa3 istotne zmniejszenie wysokoci i rednicy rolin; stosowany jedno i dwukrotnie zmniejsza3 wysokoæ odpowiednio o 24,8 i 26,8%, a rednicê o 22,6 i 23,9% w porównaniu do rolin kontrolnych
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