Foliar Application of Gibberelic Acid on Growth and Flowering of Gerbera Cultivars

Uddin, A. F. M. Jamal; Mehraj, Hasan; Taufique, T.; Ona, AF; Parvin, Shahnaj

doi:10.18801/jbar.020114.19

Cited by 6 publications

(8 citation statements)

References 11 publications

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“…The highest number of flowers/plant was observed in V1 (14.75/plant/4month) and the lowest was observed in V12 (12.25/plant/4 month) (Figure 01). A similar variation was also observed by Hossain et al (2015), Jamal Uddin et al (2014); in case of gerbera. Also, similar result was found by Wazir (2014), Uddin et al (2013) and Uddin et al (2015a) in their evaluation of different lines of lisianthus.…”

Section: Resultssupporting

confidence: 86%

Influence of growth promoters on fourteen gerbera (Gerbera jamesonii) cultivars

Usha¹,

Rakibuzzaman²,

Akter³

et al. 2021

J biosci agric res

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Applications of plant growth promoters influenced plants growth and have a quicker effect on vegetative growth as well as flower yield of flowering crops. That’s why an experiment was accomplished in the Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh to observe the effect of the growth promoters on Gerbera cultivars. Fourteen gerbera cultivars viz. V1= Sweet pink with black centre, V2= Yellow with black centre, V3= Reddish orange with black centre, V4= Red with yellow centre, V5= White with yellow centre, V6= Purplish pink with yellow centre, V7= Yellow, V8= Creamy yellow with yellow centre, V9= Magenta with black centre, V10= Red with black centre, V11= Bright orange with yellow centre, V12= Magenta pink with black centre, V13= Orange with yellow centre, V14= Yellow with greenish centre were used as factor A in this experiment. Factor B was growth chemicals denoted as T0 (control), T1 (4-CPA), T2 (Flora) and T3 (GA3). This experiment was organised in Randomized Complete Block Design with three replications. In this study, V6 showed the highest head diameter but V1 showed the highest flower head diameter when treated with GA3 (T3). Again in all other cases, V1 showed the best performance and among the growth chemicals GA3 (T3) was observed best, Flora (T2) showed better performance than 4-CPA (T1).

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Section: Resultssupporting

confidence: 86%

Influence of growth promoters on fourteen gerbera (Gerbera jamesonii) cultivars

Usha¹,

Rakibuzzaman²,

Akter³

et al. 2021

J biosci agric res

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“…As discussed earlier, due to delay in flowering and more chlorophyll content in treatment with cycocel, there was more reserve of photosynthates in flower which prolong bloom life. Similar finding have been reported by Jamaluddin et al (2014) by application of growth retardant like ethrel in gerbera. The shortest bloom life was observed in T 1 (control) due to no application of growth regulators.…”

Section: Bloom Lifesupporting

confidence: 90%

“…Being a growth promoter Gibberellin induce cell elongation and cell enlargement increasing stalk length. Similar finding was obtained by Pobudkiewicz and Nowak (1992), Sujatha et al (2009), Dalal et al (2009), Dogra et al (2012), Mehraj et al (2013) and Jamaluddin et al (2014) by application GA in gerbera. Decrease in flower stalk length in T 5 (Cycocel @ 800ppm) may be due to inhibitory effect of cycocel on cell elongation and cell enlargement which corroborates with the findings of Mohamed (1992) who reported that growth retardant like ethrel decreased stalk length.…”

Section: Length Of Flower Stalksupporting

confidence: 86%

Efficacy of Growth Regulators on Flowering of Gerbera (Gerbera jamesonii B.) cv. Goliath in Open Field Condition

Giri

Beura

2021

ASD

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Background: Application of plant bioregulators at specific concentration modify growth, flowering, flower yield and post harvest quality of flowers. Growth promoters like auxin, gibberellins and cytokinin modify physiological process by accelerating plant growth while growth retardant like cycocel and abscisic acid inhibit plant growth. But in open field cultivation of gerbera, little is known about use of growth regulators on flowering regulation. A good knowledge on use of growth regulators in gerbera is required before going to any recommendations. The current study aimed to standardize suitable bioregulators on flower production in gerbera in open field condition. Methods: The study was carried out in premises of Biotechnology cum Tissue Culture Centre, Odisha University of Agriculture and Technology, Bhubaneswar during 2015-16 and 2016-17. Apart from control eight treatments of growth regulators were used like GA3 @ 100 ppm and 150 ppm, cycocel @ 700 ppm and 800 ppm with or without amino acids as foliar spray. The observation were recorded from 5 randomly selected plant within each replication of treatment for different floral parameters. Result: The result revealed that days taken to flower bud initiation and days taken to flowering was minimum in GA3 @ 100 ppm + amino acid. The stalk length of flower was maximum in treatment GA3 @ 150 ppm + amino acid while largest flower diameter, maximum number of flowers and longest bloom life was observed in treatment with cycocel @ 700 ppm + amino acid. Maximum stalk thickness was found in treatment with cycocel @ 800 ppm + amino acid. The present work will be a complementary contribution to the researchers and gerbera growers in increasing productivity of this flower crops.

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“…Similar findings was reported by Hamidimoghadam et al [14] in increasing flower diameter of carnation applied with 5 ppm GA3 and BA @ 80 ppm in vase solution. Being a growth promoter, GA also attribute towards increase in flower diameter due to accumulation of more photosynthates and so also more petals in flower which corroborates with the finding of Sujata et al [1] and Jamaluddin et al [15] in gerbera.…”

Section: Percentage Gain Flower Diameter In Vasesupporting

confidence: 88%

Impact of Plant Growth Regulators on Post Harvest Life of Cut Flowers of Gerbera (Gerbera jamesonii.B) cv. Goliath

Giri

Beura

2021

IJECC

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The present investigation was carried out in premises of Biotechnology cum Tissue Culture Centre, Odisha University of Agriculture and Technology, Bhubaneswar during 2015-16 and 2016-17. The objective of the study was to standardize suitable bio regulators on post harvest life of gerbera cut flowers. Apart from control, eight treatments of growth regulators like Gibberellins (GA3) @ 100ppm and 150ppm; cycocel @ 700 ppm and 800 ppm with and without amino acid were used as foliar spray. In winter season percentage gain weight of flower stalk (19.95%), percentage gain in flower diameter (4.95%), solution uptake (33.17 ml) and vase life (13.83 days) were maximum with application of cycocel @ 700 ppm + Amino Acid while percentage gain in stalk length (1.28%) of flower in vase was maximum in Gibberellin @ 150ppm + Amino Acid. Similar trends in change in above post harvest parameters were also observed in summer and rainy season.

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Foliar Application of Gibberelic Acid on Growth and Flowering of Gerbera Cultivars

Cited by 6 publications

References 11 publications

Influence of growth promoters on fourteen gerbera (Gerbera jamesonii) cultivars

Influence of growth promoters on fourteen gerbera (Gerbera jamesonii) cultivars

Efficacy of Growth Regulators on Flowering of Gerbera (Gerbera jamesonii B.) cv. Goliath in Open Field Condition

Impact of Plant Growth Regulators on Post Harvest Life of Cut Flowers of Gerbera (Gerbera jamesonii.B) cv. Goliath

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