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Growth Responses to two Commercial Plant Growth Retardants with Different Concentration in Potted Geranium

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영문명
Growth Responses to two Commercial Plant Growth Retardants with Different Concentration in Potted Geranium
발행기관
인간식물환경학회
저자명
Jeongmin Park Yongheon Han Jaeyo Sin Jeonghyun Ahn Wook Oh
간행물 정보
『인간식물환경학회지(JPPE)』제26권 제5호, 487~493쪽, 전체 7쪽
주제분류
자연과학 > 자연과학일반
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발행일자
2023.10.31
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국문 초록

영문 초록

Background and objective: The aim of this study was to elucidate the effect of varying treatment concentrations of twodifferent plant growth retardants, acting at different inhibition positions during the biosynthetic process, on the growthcharacteristics of geranium (Pelargonium × hortorum) and then to provide essential data to improve the quality of pot plantproduction. Methods: Aqueous solutions of diniconazole (Binnari) and daminozide (B-9) at concentrations of 0 (distilled water), 50, 100,200, and 400 mg·L-1 were prepared for the geranium 'Ringo 2000TM Deep Red'. These solutions were applied by foliarspraying twice at 10-day intervals. Growth characteristics such as plant height, leaf size and relative chlorophyll content(SPAD) were then assessed. Results: When Binnari was applied at concentrations of 0, 50, 100, 200, and 400 mg·L-1, the corresponding plant heightswere 29.5, 23.8, 24.1, 23.0, and 18.4 cm, respectively. There was a statistically significant decrease in plant height withincreasing concentration. Conversely, for B-9, plant height was significantly reduced to 26.7 cm only at the 400 mg·L-1concentration, indicating a less pronounced inhibitory effect compared to Binnari. Leaf width showed a significant decreasingtrend with increasing Binnari application concentrations and was 4.6, 4.7, 4.1, 4.2, and 3.9 cm respectively. However, therewas no significant difference due to the B-9 treatment. Chlorophyll content increased with increasing concentrations ofboth retardants. Conclusion: In conclusion, Binnari showed a greater inhibitory effect on geranium growth compared to B-9. The applicationof Binnari at 400 mg·L-1 resulted in the greatest increase in the ornamental value of the geranium. Furthermore, diniconazoleacts during the early stage before the splitting of the GA1 and GA4 pathways, thus inhibiting the biosynthesis of both activegibberellins. In contrast, daminozide inhibits the step just before GA1 biosynthesis. It is concluded that GA4 serves as thedominant active gibberellin in geranium plants.

목차

Introduction
Research Methods
Results
Discussion
Conclusion
References

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APA

Jeongmin Park,Yongheon Han,Jaeyo Sin,Jeonghyun Ahn,Wook Oh. (2023).Growth Responses to two Commercial Plant Growth Retardants with Different Concentration in Potted Geranium. 인간식물환경학회지(JPPE), 26 (5), 487-493

MLA

Jeongmin Park,Yongheon Han,Jaeyo Sin,Jeonghyun Ahn,Wook Oh. "Growth Responses to two Commercial Plant Growth Retardants with Different Concentration in Potted Geranium." 인간식물환경학회지(JPPE), 26.5(2023): 487-493

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