scholarly journals Application of foliar spray of gibberellic acid and nitrogen on the Marigold quantitatively and qualitatively (Tagetes erecta and Tagetes patula L.)

2016 ◽  
Vol 5 (4) ◽  
Author(s):  
Sajjad Ali
Keyword(s):  
Gibberellic Acid ◽  
Foliar Spray ◽  
Tagetes Erecta ◽  
Tagetes Patula

scholarly journals The influence of substrate type and chlormequat on the growth and flowering of marigold (Tagetes L.)

2017 ◽  
Vol 29 (2) ◽  
pp. 189-198 ◽  
Author(s):  
Małgorzata Maślanka ◽  
Renata Magdziarz
Keyword(s):  
Foliar Spray ◽  
The Other ◽  
Tagetes Erecta ◽  
Tagetes Patula ◽  
Substrate Type ◽  
Influence Of Substrate

AbstractThis study was conducted to investigate the effect of various horticultural substrates (compost, peat-coconut, peat TS1, flower soil, lowmoor peat) and a foliar spray of chlormequat (at a concentration of 1380 mg dm-3) on the growth and flowering of the marigold cultivars belonging to two species: Tagetes erecta - ʻMarvel Mixtureʼ and ʻTaishan Orangeʼ, and Tagetes patula - ʻDurango Redʼ and ʻBonanza Flameʼ. The obtained results show that the plants grown in peat TS1 and peat-coconut were taller, had longer internodes and leaves, and thicker stems than the plants grown in the other substrates. Chlormequat significantly reduced the height of ʻMarvel Mixtureʼ (in peat TS1), ʻTaishan Orangeʼ (in lowmoor peat) and ‘Bonanza Flameʼ (in peat-coconut). The use of chlormequat also accelerated the development of flower heads in ʻTaishan Orangeʼ (in lowmoor peat).

scholarly journals Phytotoxicity of Tagetes erecta L. and Tagetes patula L. on plant germination and growth

2015 ◽  
Vol 100 ◽  
pp. 114-121 ◽  
Author(s):  
P.C. Santos ◽  
V.H.M. Santos ◽  
G.F. Mecina ◽  
A.R. Andrade ◽  
P.A. Fegueiredo ◽  
...  
Keyword(s):  
Tagetes Erecta ◽  
Tagetes Patula ◽  
Tagetes Erecta L ◽  
Germination And Growth ◽  
Plant Germination

Effect of time and concentrations of gibberellic acid application on growth and flowering of african marigold (Tagetes erecta l.) CV. Pusa Narangi

2019 ◽  
Vol 19 (2) ◽  
pp. 293
Author(s):  
Anaytullah Mujadidi ◽  
Mukesh Kumar ◽  
Sunil Malik ◽  
Satya Prakash ◽  
B. Singh ◽  
...  
Keyword(s):  
Gibberellic Acid ◽  
Tagetes Erecta ◽  
African Marigold ◽  
Tagetes Erecta L

Response of Apple Trees CV. Barwari to Foliar Spray With Iron and Gibberellic Acid 4 : Fruits Quality Parameters

2009 ◽  
Vol 13 (1) ◽  
pp. a1-a10
Author(s):  
مصلح محمد سعيد Ghafour ◽  
◽  
ازاد احمد الطيب Aziz ◽  
جاسم محمد علوان الاعرجي Almolla ◽  
◽  
...  
Keyword(s):  
Gibberellic Acid ◽  
Foliar Spray ◽  
Quality Parameters ◽  
Apple Trees

scholarly journals Effect of gibberellic acid on growth and flowering attributes of African marigold (Tagetes erecta) in inner terai of Nepal

2021 ◽  
Vol 4 (2) ◽  
pp. 134-147
Author(s):  
Samjhana Acharya ◽  
Bijay Ghimire ◽  
Suraj Gaihre ◽  
Krishna Aryal ◽  
Lal Bahadur Chhetri
Keyword(s):  
Gibberellic Acid ◽  
Field Experiment ◽  
Plant Height ◽  
Block Design ◽  
Maximum Diameter ◽  
Tagetes Erecta ◽  
Fresh Weight ◽  
Basal Diameter ◽  
Randomized Complete Block Design ◽  
African Marigold

A field experiment was conducted at Bangaun, Lamahi-3, Dang, Nepal to study the effect of GA3 on growth and flowering attributes of African marigold (Tagetes erecta) in Inner Terai of Nepal. The experiment consists of three replications and 8 treatments and laid out in a randomized complete block design- consisting of various concentrations of GA3 viz. 0ppm, 50ppm, 100ppm, 150ppm, 200ppm, 250ppm, 300ppm, and 350ppm. Kolkata local variety of African marigold was tested. The study revealed that among different concentrations of GA3, 300ppm showed the tallest plant height (72.93cm) and the highest basal diameter (1.49cm). Maximum numbers of primary branches (3.11) and the greatest plant spread (32.11cm) were obtained from 250ppm; similarly, maximum numbers of secondary branches (13.80) were recorded in 350ppm. In the case of floral parameters both 100ppm and 350ppm recorded earlier days to 50% flowering (44.00 days each), days for 100% flowering was recorded almost similar in every treatment that sticks around 54 and 55 days, maximum diameter (5.370cm) of flowers were obtained from 50ppm, the greatest fresh weight (6.180g) was recorded in 350ppm, 250ppm showed a maximum number of flower per plant (104.13), similarly, a longer duration of flowering (58 days) was recorded in 300ppm. Among all treatments, the 250ppm level of GA3 was found to be most suitable in terms of production perspective.

scholarly journals Gibberellic Acid Reverses Effects of Excess Paclobutrazol on Geranium

HortScience ◽  
1991 ◽  
Vol 26 (1) ◽  
pp. 39-40 ◽  
Author(s):  
Douglas A. Cox
Keyword(s):  
Gibberellic Acid ◽  
Growth Medium ◽  
Foliar Spray ◽  
Growth Suppression

Paclobutrazol (PBZ) was applied to `Mustang' geranium (Pelargonium × hortorum L.H. Bailey) as a single growth-medium drench at 0.06 mg a.i./pot or as a single foliar spray at 100 mg·liter-l when the plants had three to four expanded true leaves (34 days after sowing). At these rates, PBZ caused excessive growth suppression but plants flowered earlier than untreated controls. A single foliar spray of gibberellic acid (GA) at 100 mg·liter-l applied 0 (same day), 7, 14, or 21 days after PBZ reversed the growth suppression caused by PBZ. Plants treated with GA30 or 7 days after PBZ were as tall or taller and flowered at the same time as or later than the untreated (no PBZ, no GA3) controls. Plants treated with GA, 14 or 21 days after PBZ were shorter and flowered earlier than untreated controls but were taller than plants treated with PBZ alone. Response to GA3 was similar whether PBZ was applied as a drench or as a spray. Chemical name used: (+)-(R*,R*)-β([4-chlorophenyl]methyl)-α-(1,1-dimethylethyl)-1 H -1,2,4-triazole-1-ethanol (paclobutrazol).

scholarly journals Interrelationships of Gibberellic Acid and Nitrate in Sugar Production and Enzyme Activity of Sugarcane

1969 ◽  
Vol 52 (1) ◽  
pp. 19-28
Author(s):  
Alex G. Alexander
Keyword(s):  
Enzyme Activity ◽  
Gibberellic Acid ◽  
Foliar Spray ◽  
Oxidative Enzymes ◽  
Sand Culture ◽  
Major Protein ◽  
Sucrose Synthesis ◽  
Sugar Production ◽  
Storage Tissue ◽  
Moderate Growth

Variable nitrate (NO3) and gibberellic acid (GA) were applied to sugarcane in order to clarify NO3-GA interrelationships which affect growth, sugar production, and enzyme activity. Since both low NO3 and foliar GA were known to increase sucrose synthesis as separate entities, their combination posed the following questions: 1, To what degree can NO3 be withheld before growth decline offsets sucrose gains? 2, To what extent will increasing NO3 supply offset the beneficial effects of GA application? 3, Is there a combination of high NO3 and GA which will permit both increased tonnage and increased sucrose synthesis as simultaneous effects? Healthy, 12-week-old plants grown in sand culture were treated for 5 weeks. Three levels each of NO3 (0, 5, and 30 meq./liter) and GA (0, 0.01-, and 0.10-percent solutions of foliar spray) were given in a 3 X 3 factorial combination. The following results were obtained: 1. Both NO3 and GA caused moderate growth increases as evidenced by fresh weights. A combination of high NO3 and medium GA gave the maximum yields recorded. Medium GA stimulated internode elongation while retaining stockiness of the cane. High GA caused excessive elongation plus weakening and occasional lodging of the plants. 2. High GA eliminated all NO3-induced growth increases. Withholding NO3 did not seriously curtail growth so long as GA was applied. Plants given GA without NO3 grew comparably to those receiving high NO3 without GA. 3. Withholding NO3 caused major sucrose increases in both leaf and immature storage tissues. Raising NO3 increased synthesis of total ketoses but caused striking decline of sucrose. GA caused significant sucrose increases in storage tissue when NO3 supply was low. However, GA-induced sucrose increases could not offset sucrose losses due to high NO3. 4. The most favorable treatment for growth and sugar production was a combination of low NO3 and medium GA. This induced moderate growth plus major sucrose increases. 5. Leaf phosphatase and ATP-ase were greatly stimulated by NO3. High GA alleviated the NO3 effects. 6. A strong NO3 X GA interaction affected both hydrolytic and oxidative enzymes in immature storage tissue. Phosphatase, ATP-ase, peroxidase and polyphenol oxidase were all involved. 7. NO3 greatly increased protein content of immature storage tissue, but GA had little effect. GA was able to stimulate both growth and sugar formation without the major protein changes characteristic of NO3 treatments. Practical usage of the NO3 and GA data are discussed. It is felt that GA treatment should be delayed after heavy nitrogen fertilization, and will not prove fully effective if given simultaneously with normal fertilizer programs.

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