Using Paclobutrazol, Daminozide, Chlormequat, Propiconazole on Vegetative Growth and Flowering Control of Zinnia

Öz

PGRs such as paclobutrazol, daminozide, chlormequat and propiconazole help to alter various growth characteristics of plants and they are used commonly in the modern production system of ornamental plants. The objective of this work was to evaluate the effects of the optimum dose, decreasing and increasing amounts of the optimum dose of paclobutrazol, daminozide, chlormequat and propiconazole used in the modern production system of zinnia (Zinnia elegans Jacq.) vegetative growth parameters and flowering in a greenhouse experiment. Plant height was reduced with the administration of 2 g L-1 of daminozide (T4) at a ratio of 20.87% compared to the control group. The plants treated with 1.5 ml L-1 of chlormequat (T9) had the highest main stem diameter, flower stalk diameter (4.50 mm) and side branch length (16.17 cm). It was determined that the highest side branch diameter (3.78 mm) and number of flower buds (4.67 per plant) were manifested with T4. The treatment of T4 can be used to increase the number of flower buds of zinnias. The result showed that the use of 2 g L-1 of daminozide (T4) reduced the internode length compared to the control group at a rate of 58.60%. In summary, it was concluded that the chemicals and all the doses used in the experiment did not affect the deterioration of the flower quality of zinnias. On the contrary, it was concluded that more compact plants can be obtained by providing height control especially by applying different doses of daminozide. In order to shorten the production period of zinnias, it may be advisable to apply 0.25 ml L-1 of propiconazole.

Anahtar Kelimeler

• Plant growth retardants
• Zinnia elegans Jacq.
• plant height
• compact plant form

Paclobutrazol, Daminozid, Klormequat, Propiconazole Zinnia'nın Vejetatif Büyümesi ve Çiçek Kontrolü Üzerinde Kullanılması

Öz

Paclobutrazol, daminozide, chlormequat ve propiconazole gibi PGR'ler bitkilerin çeşitli büyüme özelliklerini değiştirmeye yardımcı olur ve bunlar süs bitkilerinin modern üretim sisteminde yaygın olarak kullanılır. Bu çalışmanın amacı, bir sera denemesinde, zinnia (Zinnia elegans Jacq.) vejetatif büyüme parametreleri ve çiçeklenmesinin modern üretim sisteminde kullanılan paclobutrazol, daminozide, chlormequat ve propiconazole’nin optimum dozu, dozlarının azaltılması ve arttırılması etkilerini değerlendirmektir. Bitki boyu, kontrol grubuna kıyasla %20.87 oranında 2 g L-1 daminozid (T4) uygulanarak azaltılmıştır. 1.5 ml L-1 chlormequat (T9) ile muamele edilen bitkiler, en yüksek ana sap çapına, çiçek sapı çapına (4.50 mm) ve yan dal uzunluğuna (16.17 cm) sahiptir. En yüksek yan dal çapının (3.78 mm) ve çiçek tomurcuklarının sayısının (bitki başına 4.67) T4 ile ortaya konulduğu belirlenmiştir. T4 uygulaması, zinnia’nın çiçek tomurcuklarının sayısını arttırmak için kullanılabilir. 2 g L-1 daminozid (T4) kullanımının, internod uzunluğunu kontrol grubuna kıyasla % 58.60 oranında azalttığını sonuçlar göstermiştir. Özetle, denemede kullanılan kimyasalların ve tüm dozların zinnia’nın çiçek kalitesinin bozulmasını etkilemediği sonucuna varılmıştır. Aksine, özellikle farklı dozlarda daminozid uygulanarak bitki boyu yükseklik kontrolü sağlanarak daha kompakt bitkilerin elde edilebileceği sonucuna varılmıştır. Zinnia’nın üretim süresini kısaltmak için, 0.25 ml L-1 propiconazole uygulanması tavsiye edilebilir.

Anahtar Kelimeler

• Bitki büyüme geciktiricileri
• Zinnia elegans Jacq.
• bitki boyu
• kompakt bitki formu

Kaynakça

1. Burlec AF, Pecio Ł, Kowalczyk M, Mircea C, Cioancă O, Corciovă A, Nicolescu A, Stan C, Oleszek W, & Hăncianu M (2019). Chemical profile and antioxidant activity of new selective Zinnia elegans fractions. Mesmap–5 Proceedıng Book 115.
2. Cardoso JC, & Habermann G (2014). Adventitious shoot induction from leaf segments in Anthurium andreanum is affected by age of explant, leaf orientation and plant growth regülatör. Horticulture, Environment, and Biotechnology 55(1): 56-62.
3. Carey DJ, Fair BA, Buhler W, Mccall I, & Whipker BE (2013). Growth control and flower promotion of salvia with benzyladenine foliar sprays. Journal of Applied Horticulture 15: 87-89.
4. Christopher JC & Lopez RG (2010). Paclobutrazolpre- plant bulb dips effectively control height of ‘Nellie White’ Easter lily. HortTechnology 20: 357-360.
5. Cox DA (1991). Gibberellic acid reverses effects of excess paclobutrazol on geranium. HortScience 26(1): 39-40.
6. Cramer CS, & Bridgen MP (1998). Growth regulator effects on plant height of potted ‘MussaendaQueen Sirikit'. HortScience 33(1): 78-81.
7. Currey CJ & Erwin JE (2012). Foliar applications of plant growth regulators affect stem elongation and branching of 11 kalanchoe species. HortTechnology 22(3): 338-344.
8. Currey CJ, Lopez RG, Krug BA, Mccall I & Whipker BE (2012). Substrate drenches containing flurprimidol suppress height of ‘Nellie White’ easter lilies. HortTechnology 22(2): 164-168.

9. Gibson Jl & Whipker BE (2001). Ornamental cabbage and kale growth responses to daminozide, paclobutrazol, and uniconazole. HortTechnology 11(2): 226-230.
10. Hadizadeh H, Tehranifar A, Shoor M & Nemati H (2010). Investing of the dwarfeness effect of paclobutrazol on tuberose (Polianthes tuberosa L.) and the possibility of pot tuberose production. Journal of Horticulture Science (Agriculture Science and Technology) 24: 7-13.
11. Hashemabadi D, Lipaei SR, Shadparvar V, Zarchini M & Kaviani B (2012). The effect of cycocel and daminozide on some growth and flowering characteristics of Calendula officinalis L., an ornamental and medicinal plant. Journal of Medicinal Plants Research 6(9): 1752-1757.
12. Khaimov A & Mizrahi Y (2006). Effects of day-length, radiation, flower thinning and growth regulators on flowering of the vine cacti Hylocereus undatus and Selenicereus megalanthus. The Journal of Horticultural Science and Biotechnology 81(3): 465-470.
13. Meijón M, Rodríguez R, Cañal MJ & Feito I (2009). Improvement of compactness and floral quality in azalea by means of application of plant growth regulators. Scientia Horticulturae 119(2): 169-176.
14. Meksem L, Rouabhi R, Djebar-Berrebbah H & Djebar MR (2007). The impact of propiconazole (Tilt 250 EC) on the growth and the breathing of hard wheat isolated roots (Triticum durum, GTA & Vitron varieties). Advances in Agriculture and Agricultural Sciences 2(8): 370-373.
15. Olivera CM & Browning G (1993). Studies on the induction of flowering in juvenile Prunus avium L. Journal of Horticultural Science 68: 731-739.
16. Pinto ACR, Rodrigues TDJD, Leite IC & Barbosa JC (2005). Growth retardants on development and ornamental quality of potted 'Lilliput' Zinnia elegans Jacq. Scientia Agricola 62(4): 337-345.
17. Rolston MP, Mccloy BL & Pyke NB (2004). Grass seed yields increased with plant growth regulators and fungicides. In Proceedings of the New Zealand Grassland Association 66: 127-132.
18. Sajjad Y, Jaskani MJ, Asif M & Qasim M (2017). Application of plant growth regulators in ornamental plants: A review. Pakistan Journal of Agricultural Sciences 54(2).
19. Taherpazir S & Hashemabadi D (2016). The effect of cycocel and pot size on vegetative growth and flowering of Zinnia (Zinnia elegans). Journal of Ornamental Plants 6(2): 107-114.
20. Wanderley CDS, Faria RTD, Ventura MU & Vendrame W (2014). The effect of plant growth regulators on height control in potted Arundina graminifolia orchids (Growth regulators in Arundina graminifolia). Acta Scientiarum Agronomy 36(4): 489-494.
21. Whipker BE, Eddy RT & Hammer PA (1995). Chemical growth retardant application to tuberous-rooted dahlias. HortScience 30(5): 1007-1008