Effect of Micronutrients and Plant Growth Regulators on Growth, Flowering and Yield Attributes of Marigold (Tagetes erecta L.)

Pawar, Ajit; Saraladevi, D.; Kannan, M.; SabirAhamed, A.

doi:10.29321/maj.2019.000284

Cited by 6 publications

(11 citation statements)

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“…Cycocel and MH enhanced the bud initiation with the increasing concentration of cycocel, whereas, MH delayed the bud initiation (Table 2). These results are in contradiction with the results of Parmar and Singh (1983). Duration of flowering increased with both the chemicals.…”

Section: Floral Parameterscontrasting

confidence: 99%

The Effect of Growth Retardants on Growth, Flowering and Yield of African Marigold (Tagetes Erecta L.)

Kundu¹,

Tjprc²

2019

IJASR

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Cycocel and maleic hydrazide at 0, 500 and 1000 ppm were applied to study its effects on growth, floral characters, yield and seed parameters. Various growth parameters i. e. number of branches, fresh and dry weight of plant were significantly increased when the plants were sprayed with 500 ppm of cycocel or maleic hydrazide. Plant height and internodal length decreased with the increasing concentrations of cycocel and maleic hydrazide. Interactions were significant in all the growth parameters except internodal length. It was interesting to note the detrimental effects of these chemicals when applied in combination at higher concentrations. Maximum number of buds per plant were observed when the plants were sprayed separately with cycocel 1000 ppm and MH 500 ppm. Maleic hydrazide at 500 ppm significantly affected days to flowering and duration of flowering, whereas, the results were non-significant with cycocel application. The combined application of MH and CCC significantly favoured days to flowering and duration of flowering. Cycocel at 1000 ppm along with MH at 500 ppm had significantly higher fresh and dry weight, number of flowers, flower yield per plant and flower yield per hectare.

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Section: Floral Parameterscontrasting

confidence: 99%

The Effect of Growth Retardants on Growth, Flowering and Yield of African Marigold (Tagetes Erecta L.)

Kundu¹,

Tjprc²

2019

IJASR

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“…Also, GA 3 (100 ppm) was found more effective than naphthalene acetic acid and ethrel of same or lower concentration in respect of plant height (Palei et al, 2016). However, the plant height was found greater with GA 3 @ 100 ppm than 200 ppm (Singh, 2004); 150 ppm than 200 ppm (Kanwar & Khandelwal, 2013); 300 ppm than 400 ppm (Patil et al, 2016) and 100 ppm than 200 ppm (Narute et al, 2020). Similar result was obtained by treatment combination of GA 3 @ 200 ppm, azospirillium @ 5kg/ha and Phosphate solubalizing bacteris @ 5 kg/ha (Shivaprakash, 2011).…”

Section: Plant Heightmentioning

confidence: 99%

“…This paper reviewed the application of various biochemicals to quantify yield and quality of African marigold. Among phytohormones and plant growth regulators Gibberellins or Gibberellic acids (GA 3 ) (Sunitha, 2007;Pandey & Chandra, 2008;Ramdevputra et al, 2009;Rajhansa et al, 2013;Palei et al, 2016;Acharya et al, 2021;Karki et al, 2021), ethrel (Rajyalakshmi & Rajasekhar, 2014), paclobutrazol (Rathore et al, 2011), salicylic acid (Basit, 2018;Poudel & Subedi, 2020), Naphthalene Acetic Acid (NAA) (Kanwar & Khandelwal, 2013), Chlormequat Chloride (CCC) (Kumar et al, 2012;Rajyalakshmi & Rajasekhar, 2014), etc. are the most widely used and proven biochemical for ornamentals (including African marigold) with pronounced effect on plant growth, development, morphology, phenology and overall differentiation (Singh et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Effect of Plant Growth Regulators in African Marigold: A Review

Regmi¹,

Acharya

2022

Nep. Hort.

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African marigold, being tall enough and producing large flowers suitable for preparing garlands, is the most cultivated cultivar of marigold in Nepal. Besides, pinching and other improved cultural techniques, a number of chemicals, hormones and phyto-hormones are being tested and found to impart a varying response in African marigold. This review has its importance for standardizing the type and concentration of plant growth regulators in African marigold. Online journals, scientific papers, proceedings, books, thesis and lecture notes are the key reference site for this review. Gibberellins or gibberellic acids (GA3), ethrel, paclobutrazol, salicylic acid, Indole 3 Acetic Acid, Naphthalene Acetic Acid (NAA), Chlormequat Chloride and sea weed extract are the most widely used and proven biochemical with pronounced effect on growth, development and differentiation in marigold. Among these, 300 ppm, 350 ppm and 450 ppm of GA3 results higher plant height, minimum days for flower initiation and higher basal diameter respectively. Similarly, 450 ppm for higher number of branches and leaves per plant and 400 ppm of GA3 or 600 ppm of CCC has been found to impart higher number and weight of flowers per plants. Besides, 1000 ppm of CCC has been found more effective to impart higher productivity (yield/ ha) in African marigold. Hence, plant growth regulators have been a valuable agent for optimizing yield and yield potential in African marigold.

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“…Commercially, plant growth regulators are used for suppressing apical dominance retarding vegetative growth, lateral buds induction and the production of a large number of flowers in various crops resulting in a higher flower yield and easy cultivation [13][14][15]. There are many examples of utilization of plant growth hormones to regulate the flowering in aromatic plants [16].…”

Section: Introductionmentioning

confidence: 99%

Effect of Foliar Supplied PGRs on Flower Growth and Antioxidant Activity of African Marigold (Tagetes erecta L.)

et al. 2021

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Marigold is one of the commercially exploited flowering crops that belongs to the family Asteraceae. The production of economical yield and better quality of marigold flowers requires proper crop management techniques. Crop regulation is an important technique to make the marigold production profitable. This can be done by adopting application of plant growth regulators (PGRs). The present study was designed to investigate the effect of PGRs on flowering and antioxidant activity of two cultivars of African marigold (Tagetes erecta L.) viz. “Pusa Narangi Gainda” (hereinafter referred to as Narangi) and “Pusa Basanthi Gainda” (hereafter referred to as Basanthi). Plants were sprayed with abscisic acid (ABA), N-acetyl thiazolidine (NAD), gibberellic acid (GA3), salicylic acid (SA), indole-3-butyric acid (IBA) and oxalic acid (OA) at the concentrations of 100, 150, 250, 300 and 800 mg·L−1, each. Results revealed that the plants treated with 500–600 mg·L−1 IBA exhibited maximum increase in floral diameter (34–51%). The use of 500–550 mg·L−1 IBA exhibited maximal enhancement in flower fresh weight (21–92%). The exogenously applied OA significantly (p ≤ 0.05) improved flower dry weight, total phenolic contents, total flavonoid contents and reducing power ability of marigold plants. Overall, “Narangi” performed better than “Basanthi”, in terms of flowering and antioxidant activity. Conclusively, the results suggest that foliar application of PGRs favors flowering and antioxidant activity of African marigold.

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Effect of Micronutrients and Plant Growth Regulators on Growth, Flowering and Yield Attributes of Marigold (Tagetes erecta L.)

Cited by 6 publications

References 0 publications

The Effect of Growth Retardants on Growth, Flowering and Yield of African Marigold (Tagetes Erecta L.)

The Effect of Growth Retardants on Growth, Flowering and Yield of African Marigold (Tagetes Erecta L.)

Effect of Plant Growth Regulators in African Marigold: A Review

Effect of Foliar Supplied PGRs on Flower Growth and Antioxidant Activity of African Marigold (Tagetes erecta L.)

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