Growth, Yield and Quality of Rosa Hybrida L. As

The effects of sodium chloride (nacl) salinity (control; canal water with0.4 ds m-1), 2.5 dsm-1, 5.0 ds m-1, 7.5 ds m-1 and 10.0 ds m-1, respectively)developed after 6 weeks of pruning (beginning of study) on plant growth,flowering and quality of three cut rose (rosa hybrida l.) cultivars viz. ‘kardinal’,‘angelique’ and ‘gold medal’ were studied to achieve better management,quality production and ascertaining salinity tolerance of promising cut rosesbeing grown commercially in pakistan. plants were grown in pure sand in orderto eliminate substrate salinity effect on plants. number of leaves branch-1, leafarea, leaf total chlorophyll contents, bud diameter, flower diameter and flowerquality were greater when plants were grown with canal water (control) havingonly 0.4 ds m-1 salinity, which also reduced interval between flushes by earlyflowering, while plant height, number of flowers plant-1 flush-1, fresh and dryweight of a flower, stem length and diameter were greater with 2.5 ds m-1substrate salinity followed by canal water (control). among cultivars, ‘angelique’proved comparatively more salt tolerant as compared with ‘kardinal’ and ‘goldmedal’ by producing vigorous growth and greater number of flowers. insummary, cut rose cultivars studied cannot tolerate higher substrate salinity andpreferably be grown with < 2.5 ds m-1 nacl substrate salinity.