scholarly journals Effects of Plant Growth Regulator on Yield and Economic Benefit of Sweet Pepper (Capsicum annum L.)

2018 ◽  
Vol 16 (02) ◽  
pp. 58-64
Author(s):  
S Akhter ◽  
T Mostarin ◽  
K Khatun ◽  
F Akhter ◽  
A Parvin
Keyword(s):  
Acetic Acid ◽  
Plant Growth ◽  
Gibberellic Acid ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Sweet Pepper ◽  
Net Income ◽  
Treatment Combination ◽  
Phenoxy Acetic Acid ◽  
Capsicum Annum

The experiment was conducted in the Horticultural Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh. Plant growth regulators were applied which had significant effect on yield of sweet pepper (Capsicum annum L.). The experiment consisted of two factors. Factor A: Plant growth regulators (four levels) as G0: Control, G1: Gibberellic Acid (GA3) @ 30 ppm, G2: 4-Chloro Phenoxy Acetic Acid (4-CPA) @ 45 ppm and G3: 4-Chloro Phenoxy Acetic Acid (4-CPA) @ 45 ppm + Gibberellic Acid (GA3) @ 30 ppm and Factor B: Number of spray (three levels) as N0: Control (no spray), N1: two spray, N2: three spray. In case of plant growth regulators, the highest yield (27.77 t/ha) was found from G3 treatment, whereas the lowest (18.87 t/ha) was from G0 treatment. For number of spray the maximum yield (26.0 t/ha) was recorded from N2 treatment, while the minimum yield (19.87 t/ha) was from N0 treatment. The results indicated that the highest yield (31.8 t/ha) was observed from G3N2 treatment combination, while the lowest yield (17.5 t/ha) was from G0N0 treatment combination. Due to combined effect, the highest yield (31.8 t/ha) with net income (Tk/ha 1416558) and BCR (2.46) was observed from G3N2 treatment combination, while the lowest yield (17.5 t/ha) with net income (Tk/ha 433045) and BCR (1.49) from G0N0 treatment combination. Thus, three times spray with (4- Chloro Phenoxy Acetic Acid + Gibberellic Acid) may be recommended for achieving the higher growth, yield and economic benefit of sweet pepper. The Agriculturists 2018; 16(2) 58-64

scholarly journals Effect of Gibberellic Acid and Indole 3-Acetic Acid on Seed Germination Performance of Horse gram (Macrotyloma uniflorum) Lam (Verdc)

2016 ◽  
Vol 1 (2) ◽  
pp. 36 ◽  
Author(s):  
J. Lalitha ◽  
Haseena Rafath ◽  
M. Subash
Keyword(s):  
Acetic Acid ◽  
Seed Germination ◽  
Plant Growth ◽  
Gibberellic Acid ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Germination Percentage ◽  
Potential Growth ◽  
Macrotyloma Uniflorum ◽  
Indole 3 Acetic Acid

The experiment was undertaken with an objective to investigate the effect of various concentrations of plant growth regulators, i.e., Gibberellic acid (GA3) and Indole 3-acetic acid (IAA) on seed germination of Macrotyloma uniflorum. Seeds were soaked for 12 hours in different concentrations substances (1.0, 2.0, 3.0 and 4.0 mg/L) of IAA, GA3 and control set was soaked only in distilled water.  Three replicates of each treatment with fifty seeds per replicate were arranged for precise physiological analysis. Significant variation was found in all aspects after analysis of variance (ANOVA) of each mean value. After two weeks of seed soaking, it was noted that germination percentages were significantly accelerated by lower concentrations (1 and 2 mg) of used hormones. Amongst the two potential growth regulators, 2 mg/L was found most effective because it showed highest germination percentage for IAA (93%) and GA3 (88%). A great deal of information relating to seed germination practices shows that these plant growth regulators were efficient in overcoming dormancy leading to rapid seed germination. IAA was selected as best hormone in this study, which showed highest seed germination (93%). 

scholarly journals Estimation levels of Indol acetic acid (IAA) and Gibberellic acid (GA3) from dry bakery yeast Saccharomyces cereviciae

2010 ◽  
Vol 4 (2) ◽  
pp. 94-100
Author(s):  
Arwa A Tawfiq
Keyword(s):  
Acetic Acid ◽  
Plant Growth ◽  
Gibberellic Acid ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Indol Acetic Acid ◽  
Bakery Yeast

The level of endogenous free, bound and total auxin (Indol-3-acitic acid, IAA) and gibberellic acid (GA3) were examined in dry bakery yeast. For determination of the levels of these plant growth regulators level, used spectrophotometer. The results show that Saccharomyces cereviciae was produced IAA and GA3. IAA level was 29.86 µg/ml, 198 µg/ml at 222nm and 280nm wavelengths respectively and GA3 level was 799 µg/ml at 254nm.

scholarly journals CHANGES IN THE CHARACTERISTICS OF ‘PRATA’ BANANA TREATED WITH CYTOKININ AND GIBBERELLIN

2016 ◽  
Vol 38 (3) ◽  
Author(s):  
JULIANA DOMINGUES LIMA ◽  
JÉSSICA SANTA ROSA ◽  
DANILO EDUARDO ROZANE ◽  
EDUARDO NARDINI GOMES ◽  
SILVIA HELENA MODENESE GORLA DA SILVA
Keyword(s):  
Plant Growth ◽  
Gibberellic Acid ◽  
Factorial Design ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Physicochemical Characteristics ◽  
Fruit Yield ◽  
Musa Spp ◽  
Yield And Quality ◽  
Split Plot

ABSTRACT Plant growth regulators can influence fruit yield and quality. This study aimed to evaluate the effect of cytokinin and gibberelin on the agronomic and physicochemical characteristics of banana fruits cv. ‘Prata’ (Musa spp. AAB), according to the formation period and position in the bunch. The experiment was conducted in a completely randomized 2 x 5 factorial design, two periods of bunch development (summer and winter), five treatments and ten replicates. To study the effect of position in the bunch, split plot was adopted, considering in the plot, 2 x 5 factorial and in subplots, hand 1, hand 4 and last hand. Treatments consisted of 2 pulverizations with water, 150 mg L-1 cytokinin, 200 mg L-1 of gibberellic acid, 100 mg L-1 of cytokinin plus 200 mg L-1 of gibberellic acid and 200 mg L-1 of cytokinin plus 200 mg L-1 of gibberellic acid, applied from the fourth to the last hand of the bunch. Cytokinin and gibberellin, alone or associated, regardless of formation period and position, did not affect the size and physicochemical characteristics of fruits, only delayed the bunch harvest.

scholarly journals Sweet pepper seed responses to inoculation with microorganisms and coating with micronutrients, aminoacids and plant growth regulators

2009 ◽  
Vol 66 (3) ◽  
pp. 293-297 ◽  
Author(s):  
Kênia Almeida Diniz ◽  
Paulo de Albuquerque Silva ◽  
João Almir Oliveira ◽  
José Renato Emiliorelli Evangelista
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Beauveria Bassiana ◽  
Growth Regulators ◽  
Metarhizium Anisopliae ◽  
Trichoderma Viride ◽  
Sweet Pepper ◽  
Seedling Development ◽  
Initial Development ◽  
Antagonistic Microorganisms

Small sized seeds, such as the horticultural species, have limited quantities of reserves that can be balanced by coating then with essential nutrients for their initial development. In addition, inoculation of the seeds with microorganisms may protect the plants against phytopathogens, thus enhancing their growth. The present work had the objective of evaluate the physiological quality and seedling development of sweet pepper seeds and seedlings coated with several kind of films. Seeds were first coated with polymers and then with antagonistic microorganisms (Trichoderma viride, Trichoderma polysporhum, Trichoderma stromaticum, Beauveria bassiana, Metarhizium anisopliae), mycorrhizas, aminoacids, micronutrients and plant growth regulators. Evaluation was performed for percentage of germination and for seedling emergence, speed of emergence index, number of plants, dry mass of the aerial and root parts and height of the seedlings. Inoculation with Trichoderma viride increased the percentage and rate of the seedlings emergence Inoculation with Trichoderma viride, Metarhizium anisopliae and mycorrhizas promote better seedling development; seed microbiolization with microorganisms Trichoderma viride, T. polysporhum, T. stromaticum, Beauveria bassiana, Metarhizium anisopliae. Mycorrhizas mixture negatively affected seeds and seedling quality. Seed covering with plant growht regulator, at a 5 mL kg-1 dose increased the roots dry matter.

scholarly journals Effect of GA3 and Gly Plant Growth Regulators on Productivity and Sugar Content of Sugarcane

Agriculture ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 136 ◽  
Author(s):  
Nguyen ◽  
Dang ◽  
Nguyen ◽  
Tran ◽  
Giang ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Large Scale ◽  
Sugar Content ◽  
Sugar Accumulation ◽  
Sucrose Accumulation ◽  
Net Income ◽  
Actual Yield

The use of plant growth regulators is one effective solution to improve sugarcane yields and sugar content in several countries. In this study, we examined the role of gibberellin acid (GA3) and glyphosate (Gly) plant growth regulators to determine the appropriate concentration of GA3 and Gly to increase the yield of sugarcane and sugar accumulation, respectively. The statistical results showed that GA3 was sprayed at 150 ppm to increment the actual yield by 19.94%; sucrose accumulation increased by 2.21%. With Gly treatment, although the yield decreased by 3.17%, sucrose accumulation increased by 11.27% compared to control trials. In this study, the combined concentration of 150 ppm of both GA3 and Gly gave the best results, for which sucrose accumulation increased from 2.21% to 10.74% and from 19.94% to 20.97% for actual yield. The results led to increased net income compared to the control. To address concerns about residues of plant growth regulators, residues of GA3 and Gly were evaluated after the sugarcane harvest using the HPLC and UV-vis methods, respectively. The analyzed results showed that their residues were lower than what is permitted in several countries. This showed the applicability of the study, on a large scale, to increase sucrose accumulation, productivity of sugarcane, and profit for farmers.

scholarly journals Plant Growth Regulators Improve the Production of Volatile Organic Compounds in Two Rose Varieties

Plants ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 35 ◽  
Author(s):  
Mohammed Ibrahim ◽  
Manjree Agarwal ◽  
Jeong Oh Yang ◽  
Muslim Abdulhussein ◽  
Xin Du ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Volatile Organic Compounds ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Organic Compounds ◽  
Growth Regulators ◽  
Naphthalene Acetic Acid ◽  
Flame Ionization ◽  
Three Phase ◽  
Volatile Organic

The study focused on the influence of the plant growth regulators (PGRs) benzyladenine (BA) and naphthalene acetic acid (NAA) on the production of volatile organic compounds (VOCs) from the flowers of two modern rose varieties, Hybrid Tea and Floribunda. Thirty-six plants of Hybrid Tea and Floribunda were tested. Benzyladenine and naphthalene acetic acid were applied at 0, 100 and 200 mg/L to both rose varieties. Gas chromatography, coupled with flame ionization detection and mass spectrometry, was used to analyze and identify the volatile organic compounds from the flowers. A three-phase fiber 50/30 µm divinylbenzene/carboxen/polydimethylsiloxane was used to capture VOCs, at 2, 4 and 8 weeks, and 4 weeks was selected as it had the highest peak area. In total, 81 and 76 VOCs were detected after treatment of both rose varieties with BA and NAA, respectively. In addition, 20 compounds, which had significant differences between different treatments, were identified from both rose varieties. The majority of VOCs were extracted after the application of 200 mg (BA and NAA) /L of formulation, and four important compounds, cis-muurola-4(141)5-diene, y-candinene, y-muurolene and prenyl acetate, increased significantly compared to the controls. These compounds are commercially important aroma chemicals. This study used the rapid and solvent-free SPME method to show that BA and NAA treatments can result in significant VOC production in the flowers of two rose varieties, enhancing the aromatic value of the flowers. This method has the potential to be applied to other valuable aromatic floricultural plant species.

scholarly journals Morpho-physiological and molecular responses of two Libyan bread wheat cultivars to plant growth regulators under salt stress

2020 ◽  
Vol 15 (3) ◽  
Author(s):  
El Hadi Hadia ◽  
Amor Slama ◽  
Leila Romdhane ◽  
Hatem Cheikh M’hamed ◽  
Ahmed Houssein Abodoma ◽  
...  
Keyword(s):  
Gene Expression ◽  
Salt Stress ◽  
Plant Growth ◽  
Gibberellic Acid ◽  
Plant Growth Regulators ◽  
Bread Wheat ◽  
Growth Regulators ◽  
Glycine Betaine ◽  
Growth Yield ◽  
Wheat Varieties

To study the effects of salt stress and plant growth regulators (kinetin, gibberellic acid, potassium) on growth, yield, glycine betaine content, phosphoenolpyruvate carboxylase (PEPC) and ribulose biphosphate carboxylase (RBC) gene expression of two Libyan bread wheat varieties, a factorial design of greenhouse experiment with three replications was conducted. Results revealed that salt stress significantly reduced plant growth and productivity of both varieties. Moreover, the addition of kinetin + potassium and gibberellic acid + potassium had improved the performance of the morpho-metric parameters of both genotypes under salt stress; but the performance was more effective for kinetin treatment than for gibberellic acid. At the biochemical level, the results showed that salt stress increased glycine betaine contents in both varieties with different proportions. This increase is more elevated in the presence of kinetin + potassium than the treatment with gibberellic acid+ potassium, which showed an almost similar result as in only salt stress. At the molecular level, the effects of salt stress and plant growth regulators on the PEPC and RBC gene expression showed that the increase was significantly higher for kinetin, gibberellic acid, and salt stress when compared to the control.

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