Abstract
The effects of two types of rootstock (Rosa odorata and Rosa multiflora), training method (high-rack and arching) and the presence or absence of permanent rootstock assimilation branches on the yield and cut flower quality in the rose ‘Asami Red (Rote Rose) ’ grown in rockwool in a plastic house were studied.
The high-rack training method produced a higher yield of cut flower stems compared with those grown by the arching training method. In both the high-rack and the arching training methods, the yield of cut flower stems of plants with permanent rootstock assimilation branches of Rosa odorata was higher than that of plants grown by cutting. However, on Rosa multiflora rootstocks, the yield of cut flower stems was reduced by permanent rootstock assimilation branches compared to that of plants without such branches. In both of the high-rack and the arching training methods, the cut flower stem length of plants with permanent rootstock assimilation branches of Rosa odorata was more increased than that of plants grown by cutting. However, on Rosa mutiflora rootstocks, the cut flower stem length of plants with permanent rootstock assimilation branches was shorter than that of plants without them.
