Effect of Plant Growth Regulators Alar, MEIA and Paclobutrazole on the Phenophase of Flowering and Some Ornamental Parameters of Mini-Carnation (D. caryophyllus f. spray Hort.)

摘要

The effect of three plant growth regulators on flowering and some quality parameters of mini-carnation (D. caryophyllus f. spray Hort.) cut-flower was studied. Plants of Bulgarian varieties - Yanita, Naslada and Russalka were treated three times withwater solutions of Alar (500 and 1000 mg/1), MEIA (500 and 1000 mg/1) and Paclobutrazole (500 mg/1). It was found that: PGRs Alar and MEIA stimulated the beginning of flowering and full blooming during the phenophase of flowering, while Paclo haa a retardant effect on their timing. All three PGRs increasea the number of flowers per floriferous shoot but in terms of floriferous shoot length and number per plant the effect of Paclobutrazole was retardant, unlike Alar and MEIA.