Effect of Gibberellic Acid, Spacing and Nutrient Sprays on Growth and Flowering in Snapdragon (Antirrhinum majus L.) cv. Rocket Pink

Malik, Sajid Ali; Neelofar,; Qadri, Z.A.; Nazki, Imtiyaz Tahir; Mir, Shakeel Ahmad; Khan, F. A.; Pukhta, M. S.

doi:10.9734/ijpss/2019/v28i130098

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…Positive effects have been obtained with regards to plant growth and development by GA 3 applications in Antirrhinum majus L. cv. Rocket Pink (Rocket Pink snapdragon) and Polianthes tuberosa L. (tuberose) [42,43]. The latter had similar results to Cyclamen in petiole and leaf area with GA 3 at 100 mg/L.…”

Section: Discussionmentioning

confidence: 71%

Gibberellic Acid Can Improve Seed Germination and Ornamental Quality of Selected Cyclamen Species Grown Under Short and Long Days

et al. 2020

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Cyclamen species (swinebread spp.) are perennial herbaceous plants which belong to the Primulaceae family, widely used as medicinal or ornamental plants. Currently, gibberellic acid (GA3), an environmentally friendly bioregulator is widely used to enhance the productivity and phenotypic characteristics of multiple ornamental crops. A dual experiment was conducted to evaluate the influence of gibberellic acid (50, 100 or 150 mg/L), on germination earliness of seeds, along with growth and ornamental quality of selected Cyclamen species. Additionally, a greenhouse experiment with long and short sunlight photoperiod was conducted to evaluate its importance in the development of Cyclamen plants. Our results indicated that under short sunlight exposure, seeds germinated earlier than those kept in long sunlight photoperiod. Plants treated with foliar applications of GA3 exhibited higher plant height, leaf area, number of leaves, root length and tuber development. Significant differences were found in germination percentage (GP), mean germination time (MGT) and seedling vigor index (SVI), within different GA3 supplementation and greenhouse sunlight intensity (short and long days). In conclusion, our study suggests that seedling vigor and ornamental quality can be increased by GA3 application, an economic strategy for enhancing germination and growth of selected Cyclamen species.

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Section: Discussionmentioning

confidence: 71%

Gibberellic Acid Can Improve Seed Germination and Ornamental Quality of Selected Cyclamen Species Grown Under Short and Long Days

et al. 2020

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“…2009) also it increase osmotic potential inside plant tissue which cause absorption of more water and nutrient elements, and then securing necessary energy to form leaves and increase its area (Sardoei, et. al., 2014) or the increase in the number of leaves is due to an increase in the branches number as mentioned by (Malik, et. al.…”

Section: Table (2)mentioning

confidence: 93%

Gibberellic Acid (ga3 And Npk Nano-fertilizers Can Enhance The Growth And Development of Buxus Sempervirens ‘suffruticosa’ Plant

Jihad,

Hasan,

Hammo

2023

UOD

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This study was conducted in the greenhouse of the College of Agricultural Engineering Sciences, University of Duhok for the period between 15 th March 2022 to 15 th March 2023. The study aimed to test the effect of Gibberellic acid (GA3) with three concentrations (0, 200, 400) mg L -1 , and (1, 2, 4) g L -1 of NPK Nano fertilizers sprayed two times on the growth and development of Buxus sempervirens 'Suffruticosa' plant and the experimental units were organized by using (RCBD) Randomized Complete Block Design, with two factors 3×3= 9 treatments and three replications then taking three plants for each replication. The results showed that the 400 mg L -1 of GA3 significantly increased the number of branches, plant weight, number of leaves, growth index and leaf area compared with 200 mg L -1 which resulted in increasing plant height, vegetative dry weight, root dry weight, total chlorophyll content compared with control. Increasing of Nano fertilizer concentration up to 4 g L -1 significantly increased the plant height, number of branches, plant weight, number of leaves, vegetative dry weight, root dry weight also leaf area compared with 2 g L -1 which affected on increasing total chlorophyll content. The highest branches number (17.33) branch/plant, highest plant weight (189.20) g, number of leaves (143.33) leaf/plant, vegetative dry weight (42.30) g leaf area (2755.00) cm 2 was obtained from the interaction of (4 g L -1 + 400 mg L -1 ) of NPK Nano fertilizer and GA3 while plant height gave the same result (58.67) at both concentration (4 g L -1 + 200 mg L -1 ) and (4 g L -1 + 400 mg L -1 ), but in other side maximum total chlorophyll and growth index were from interaction of (2 g L -1 + 200 mg L -1 ) and gave (87.97) , (74279) respectively. Overall, the interaction between (gibberellin at 400 mg L -1 + Nano-NPK fertilizer 4 g L -1 ) provided best results of most studied characteristics. Also, both factors individually provided best results when 400 mg L -1 gibberellin and 4 g L -1 Nano-NPK fertilizer were used.

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“…The GA 3 applications have been also used for speeding up plant growth and development. The fostering of plant growth has been exploited in the ornamental sector and positive results have been obtained on Polianthes tuberose and snapdragon cut flowers [36,37]. The effect of GA treatments depends on both the species/cultivar and concentrations used [6].…”

Section: The Gas Exchanges Analysismentioning

confidence: 99%

Bioregulators Can Improve Biomass Production, Photosynthetic Efficiency, and Ornamental Quality of Gazania rigens L.

et al. 2019

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Gazania rigens L. is a perennial herbaceous plant that belongs to the Asteraceae family, widely used as bedding or ornamental potted plants. The environmental and economic sustainability of ornamental production can be enhanced using environmentally friendly bioregulators. A pot experiment was conducted to evaluate the influence of key bioregulators gibberellic acid ((GA3) at 50, 100 or 150 mg L−1), humic acid ((HA) at 100, 300 or 600 mg L−1), and ascorbic acid ((AA) at 50, 100 or 200 mg L−1)), on the growth, leaf gas exchange, and ornamental quality of G. rigens. The results indicated that plants treated with foliar applications of GA3, HA, or AA exhibited higher plant fresh and dry biomass, plant height, leaf area, and leaf area ratio, root-shoot ratio, root-shoot mass fractions, and number of flowers, as well as the flowers display time. All bioregulator treatments enhanced the vegetative and floral characteristics of Gazania plants. The GA3 was the most efficient at the concentration of 100 mg L−1. The highest efficacy of HA and AA treatments was observed at the higher concentrations, 600 and 200 mg L−1, respectively. These results were associated with higher photosynthetic rate (A), transpiration rate (E) as well as stomatal conductance (gs), and water use efficiency (WUE). In conclusion, the results suggest that foliar-applied bioregulators to Gazania are promising and represent sustainable strategies to enhance growth, flowering, and flower display time of Gazania plants.

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Effect of Gibberellic Acid, Spacing and Nutrient Sprays on Growth and Flowering in Snapdragon (Antirrhinum majus L.) cv. Rocket Pink

Cited by 4 publications

References 3 publications

Gibberellic Acid Can Improve Seed Germination and Ornamental Quality of Selected Cyclamen Species Grown Under Short and Long Days

Gibberellic Acid Can Improve Seed Germination and Ornamental Quality of Selected Cyclamen Species Grown Under Short and Long Days

Gibberellic Acid (ga3 And Npk Nano-fertilizers Can Enhance The Growth And Development of Buxus Sempervirens ‘suffruticosa’ Plant

Bioregulators Can Improve Biomass Production, Photosynthetic Efficiency, and Ornamental Quality of Gazania rigens L.

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