The effect of different media and chemical applications on the rooting of hydrangea cuttings,growth and sepal colour

An experiment was made to investigate the effect of six rooting media(1.Perlite,2.Peat,3.grape marc,4.Zeolite,5. Rockwool,6.cocopeat) on the rooting of hydrangea cutting, with a randomised block design replicated three times in the laboratory of horticultural deparment. Zeolite gave the most rooted cuttings, root numbers, shoot length and percantage of rooted cuttings. The rooted cuttings taken from rockwool, zeolite and perlite were planted in peat and four different chemical applications were arranged factorially with fully randomized design with two replications to find out their effect on the growth and sepal colour in the second experiment. Chemical applications were: 1.) K0: constant liquid feed with 100 ppm N,50 ppm P2O5 and 100 ppm K2O 2.)K1: 1.5 g Al2 (SO4)3 was given as a base dressing when the buds seen 10 g /L Al2 (SO4)3 solutions was applied five times every 14 days. The volume applied was 120 ml/L constant liquid feed was 150 ppm N and 300 ppm K2O 3.)K2:0.75 g Al2 (SO4)3 was given as a base dressing. When buds seen 5 g/L Al2 (SO4)3 was applied five times every 14 days. The volume applied was 120 ml/L . Constant liquid feed was 150 ppm N and 300 ppm K2O 4.)K3 Constant liquid feed with 150 ppm N ,210 ppm P2O5 and 100 ppm K2O The shoot number per plant was the highest in PK1,PK2,ZK1 and ZK3 combinations. The longest shoot length was obtained from PK3.According to chemical main effect K3 gave the longest shoot lenght. The flower colour was blue in K1 purple in K2 and pink in K0 and K3 As a result, zeolite is the most suitable medium for rooting.ZK3 can be recommended for the shoot number, plant and PK3 for the longest shoot lenght. K3 liquid feed as a main effect is more suiıtable for the longest shoot lenght K1: 1.5 g/L Al2 (SO4)3 as a base dresing when the buds seen 10 g /L AL2 (SO4)3 five times ever 14 days,120 ml/L should be used for blue colouring. The constant liquid feed of K1 was 150 ppm N, 300 ppm K2O.According to the result ZK1, for blue flower, ZK2 for purple and ZK3 combination for pink flower can be recommended. Keywords: Perlite, Peat, Grape Marc, Zeolite, cocopeat 2019, 43 sayfa