Physiological studies on garden roses (some sp. and varieties) and its importance on border landscapes

Abstract

The present work was carried out in three successive years 2000/2001 and 2002 at the experimental farm of Agriculture, Moshtohor, Zagazig University, Egypt This work included three experiments "Study the effect of two different light intensities, The effect of 6 of growing media and the effect of thiourea treatments on growth, flowering and chemical composition of Rosa.

The growing media consisted of the following:

M•. Control using garden soil only (GS). M2. Sand: GS: FYM*: Foam ( Pollythyrine).l:l:l:l by volume. M3. Sand : GS : FYM : Peat Moss.I:I:I:1 by volume. - Sand : GS : Sludge**: Shipps of Maize husk 2:2:1:1 by volume. Ms. Sand:GS:Sludge: Rice straw 2:2:1:1 by volume. -Sand: GS :Leaf mould (dry leaves of Ficus elastica)l:l:lby volume. The following results were obtained:-

EXPERIM ENT(l) :- 1-Effect of light intensities on growth and flowering of rose hybrid tea:-

Plant height was highly significant increase by using medium M3 andcompared to control. Number of branches /plant was significant increased at the open filed and by using media M3 andduring the second season. Media M3, M5 and M6 were significantly increased the number ofleaves per plant.

Effect of media on flowering:-

Flower stem length was significantly taller under shading by using media M2, M3 and M6.