Production of chrysanthemum (Dendranthema grandiflora Tzvelev.), cv. 'Snowdon', in pots I: daminozide's concentrations and times of application

Ciência Rural

Tolotti, Jucelma de Cássia Câmara²  Bellé, Rogério Antônio²  Mainardi, Leandro¹ 

[1] Universidade Federal de Santa Maria, Santa Maria

关键词: growth retardant;    succinic acid 2;    2-dimethyl-hydrazide (daminozide);    B-nine;    concentration;    plant height;    stem diameter;    flower diameter;   

DOI  :  10.1590/S0103-84782003000600008

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

The aim of this study was to investigate the response of potted chrysanthemum cv. Snowdon, to the growth retardant Daminozide, in terms of fenometric parameters. The study consisted of two experiments with five repetitions. The experiments were bifactorial 4 x 2, with four concentrations of Daminozide (0, 2,000, 4,000 and 6,000 mg.L-1) and two times of application (weekly and bi-weekly) of the product. Plant height, number of nodes, length of internodes, diameter of stems and inflorescences, length and diameter of floral peduncle were determinated. All concentrations and times of applications were able to reduce plant height, length of internodes, flower diameter and floral peduncle length. However, the diameter of the stem and floral peduncle were increased. The weekly application of 4,000 mg.L-1 Daminozide produced plants with the best quality within the commercial standards.

【 授权许可】

CC BY-NC