Flurprimidol preplant corm soaks or drenches affect potted gladiolus production

被引:1
作者
Ahmad, I. [1 ]
Whipker, B. E. [2 ]
Dole, J. M. [2 ]
机构
[1] Univ Agr Faisalabad, Inst Hort Sci, Faisalabad 38040, Pakistan
[2] N Carolina State Univ, Dept Hort Sci, Raleigh, NC 27695 USA
来源
XXIX INTERNATIONAL HORTICULTURAL CONGRESS ON HORTICULTURE: SUSTAINING LIVES, LIVELIHOODS AND LANDSCAPES (IHC2014): INTERNATIONAL SYMPOSIUM ON ORNAMENTAL HORTICULTURE IN THE GLOBAL GREENHOUSE | 2015年 / 1104卷
关键词
plant growth retardants; production system; Topflor; HEIGHT; GROWTH;
D O I
10.17660/ActaHortic.2015.1104.16
中图分类号
S6 [园艺];
学科分类号
0902 ;
摘要
Efficacy of flurprimidol was studied for growth control of potted gladiolus (Gladiolus L. hybrids) using a 10 min preplant corm soak at 0, 5, 10, 20, or 40 mg L-1 for 'White Prosperity' and 0, 5, 10, 20, or 30 mg L-1 for 'Priscilla'. In a second study, flurprimidol drenches at 0, 0.5, 1.0, 2.0, or 4.0 mg of active ingredient per pot were used for both cultivars. With increasing flurprimidol dose, plant growth (plant height, leaf length, and fresh and dry weight of a stem) decreased for both cultivars. When used as a preplant corm treatment for 10 min, 20 mg L-1 flurprimidol resulted in 41 and 30% shorter plant height, 48 and 25% smaller leaves, 14 and 20% less fresh weight, and 20 and 24% less dry weight of 'White Prosperity' and 'Priscilla' gladiolus, respectively, compared to untreated plants. Drenches of 2.0 or 1.0 mg of flurprimidol for 'White Prosperity' and 'Priscilla, respectively, resulted in ample growth control with 40 and 40% shorter plant height and 12 and 24% less dry weight for 'White Prosperity' and 'Priscilla, respectively. With increasing flurprimidol dose, the number of stems that flowered decreased in all experiments. In summary, preplant corm soaks at 20 mg L-1 or 1.0-2.0 mg drenches per pot of flurprimidol effectively controlled excessive plant growth and may be used by the growers for potted gladiolus production, but may reduce plant quality.
引用
收藏
页码:103 / 108
页数:6
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