Effects of training methods and flower cutting methods on the yield and quality of a rose crop
1997
Nimura, M. (Aichi-ken. Agricultural Research Center, Nagakute (Japan)) | Yamaguchi, N. | Itoh, K.
We studied the effects of the main training methods, Conventional (pruning and bending in June or July, and harvesting just above the second five-leaflet leaf counted from the base), Arching and High-rack on the yield and quality of cut roses grown in rockwool culture in a glasshouse. In order to improve the yield and/or quality of cut flowers, some experiments were performed to determine the effects of harvesting methods and disbudding methods for a knuckle on the High-rack training method. When the Arching and High-rack training methods were compared, the annual yield of cut flowers on the High-rack was 1.5 times as much as that on Arching. With both training methods, there was a tendency for the number of cut flowers to increase in periods of high temperature. This tendency was remarkable with the Arching method. Cut flower length was generally longer with Arching, but the number of cut flowers over 60 cm with High-rack was bigger than that with Arching. On the other hand, when the conventional and High-rack training methods were compared; the annual yield of cut flower on summer rest High-rack (bending all branches from July to August) was 92% and that on year-round High-rack was 137% of the conventional. The cut flower length of High-rack was undoubtedly longer than that of the conventional. However, there was little difference between summer rest High-rack and year-round High-rack on the yield and quality of the cut flower after autumn
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