Effect of Paclobutrazol on Growth and Development of Curcuma alismatifolia Gagnep. Grown Off-season

Kriangsuk Boontiang; Benjawan Chutichudet; Prasit Chutichudet

doi:10.14456/nujst.2019.1

Authors

Kriangsuk Boontiang Department of Agricultural Technology, Faculty of Technology, Mahasarakham University, Mahasarakham 44150
Benjawan Chutichudet Department of Agricultural Technology, Faculty of Technology, Mahasarakham University, Mahasarakham 44150
Prasit Chutichudet Department of Agricultural Technology, Faculty of Technology, Mahasarakham University, Mahasarakham 44150

DOI:

https://doi.org/10.14456/nujst.2019.1

Keywords:

off-season Curcuma alismatiflolia Gagnep., paclobutrazol, vegetative growth, physical development, chemical compound

Abstract

A study on the effects of paclobutrazol on growth and development of C. alismatifolia Gagnep. grown in the off-season was conducted on an open field. A comparison was done between plants grown under sunlight plus 2 hrs. extra night light without paclobutrazol (Control 1) and plants grown under sunlight source without paclobutrazol (Control 2). This experiment was done by a completely randomized design with 6 treatments and 10 replications (10 plants/ replication). The results demonstrated that plants grown with paclobutrazol treatments were significantly affected in both height and peduncle length. The 600 mg/L paclobutrazol treatment was non-significant difference in terms of leaf area, chlorophyll content in leaf, non-structural carbohydrate content in rhizome, pseudo-stem, peduncle and inflorescence, and anthocyanin content in coma bract compared to control 1. Earliest flowering parameters; the day to inflorescence apparent (day 47.2) and first flower opening (day 47.2) were found in plants grown under sunlight + 2 hours night-break without paclobutrazol. The most delay inflorescence apparent (day 62.9) and first flower opening (day 94.1) were recorded under sunlight source without paclobutrazol.

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