Influence of paclobutrazol on growth and yield of Brassica carinata A.Br.

Setia, R. C.; Bhathal, Gurmeet; Setia, Neelam

doi:10.1007/bf00029532

Cited by 34 publications

(33 citation statements)

References 18 publications

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“…At both stations it was observed that application of only triazole fungicides (Top0.5and Folicur + Proline) reduced oil content in comparison with control and other treatments [6,16]. Our results are contradicted by MertTürk et al (2008) [23] and Butkute et al (2006) [24], who worked with triazole fungicides Harvesan and Folicur, respectively, and reported that oil content of rapeseed increased significantly after triazole application in comparison with the control.…”

Section: Resultscontrasting

confidence: 87%

“…Triazole and strobilurin treatments, along with plant growth regulators, are associated with various morphological and physiological changes in various plants; including inhibition of plant growth, decrease in inter-nodal elongation, increased chlorophyll content, enlarged chloroplast, thicker leaf tissue, increased root to shoot ratio, delayed senescence, increased antioxidant potentials, and enhancement in alkaloid production [3,4]. For example, triazole fungicides affect the isoprenoid pathway and alter the levels of certain plant hormones by inhibiting gibberellin synthesis [5,6]. Triazole inhibits mono-oxygenases that results in oxidation of ent-kaurene to ent-kaurenoic acid in three steps, which is an early reaction in GA biosynthesis [7].…”

Section: Introductionmentioning

confidence: 99%

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Interactive Role of Fungicides and Plant Growth Regulator (Trinexapac) on Seed Yield and Oil Quality of Winter Rapeseed

Ijaz¹,

Mahmood²,

Honermeier³

et al. 2015

Agronomy

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This study was designed to evaluate the role of growth regulator trinexapac and fungicides on growth, yield, and quality of winter rapeseed (Brassica napus L.). The experiment was conducted simultaneously at different locations in Germany using two cultivars of rapeseed. Five different fungicides belonging to the triazole and strobilurin groups, as well as a growth regulator trinexapac, were tested in this study. A total of seven combinations of these fungicides and growth regulator trinexapac were applied at two growth stages of rapeseed. These two stages include green floral bud stage (BBCH 53) and the course of pod development stage (BBCH 65). The results showed that plant height and leaf area index were affected significantly by the application of fungicides. Treatments exhibited induced photosynthetic ability and delayed senescence, which improved the morphological characters and yield components of rape plants at both locations. Triazole, in combination with strobilurin, led to the highest seed yield over other treatments at both experimental locations. Significant effects of fungicides on unsaturated fatty acids of rapeseed oil were observed. Fungicides did not cause any apparent variation in the values of free fatty acids and peroxide of rapeseed oil. Results of our study demonstrate that judicious use of fungicides in rapeseed may help to achieve sustainable farming to obtain higher yield

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Section: Resultscontrasting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Interactive Role of Fungicides and Plant Growth Regulator (Trinexapac) on Seed Yield and Oil Quality of Winter Rapeseed

Ijaz¹,

Mahmood²,

Honermeier³

et al. 2015

Agronomy

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“…Spring applications of PBZ in oilseed rape (Brassica napus) prior to a period of rapid crop development reduced plant height, but they had an adverse effect on the yield components and they offered no practical advantage in the commercial production of oilseed rape (Scarisbrick et al, 1985). By contrast, foliar application of PBZ in Ethiopian mustard (Brassica carinata), apart from reducing plant height, increased seed yield per plant primarily due to an increase in the number of siliquae (i.e., pods) per plant and secondarily due to an increase in total dry matter of plants and partitioning coefficients (Setia et al, 1995). The shortening effect of PBZ on sunflower plants appeared to be associated with the application scheme tested.…”

Section: Resultsmentioning

confidence: 99%

Sunflower response to repeated foliar applications of Paclobutrazol

Koutroubas

Damalas

2015

Planta daninha

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-Paclobutrazol (PBZ), a well-known growth retardant of the triazole family, is mostly used for controlling plant size and growth, resulting in more desirable compact plants for floricultural purposes; however, limited experimental data are available for use of PBZ in field sunflower. The objective of this study was to evaluate the effect of repeated foliar applications of PBZ at rates of 50 + 50 g ha -1 (double application) and 50 + 50 + 50 g ha -1 (triple application) on sunflower morphology and productivity. PBZ applications corresponded to growth stages of four to five, five to six, and six to eight true leaves of sunflower plants, respectively. The double foliar application of PBZ reduced sunflower plant height at maturity by 4.4% (or by 11.7 cm). The triple foliar application of PBZ reduced sunflower plant height at maturity by 14.4% (or by 49.2 cm). However, PBZ either in the double or the triple application reduced achene yield per plant by 25.6% and 22.5% and the 100-achene weight by 11.4% and 25.0%, respectively, compared with the non-treated control. Overall, the repeated foliar applications of PBZ at the rates tested in this study, apart from providing a reduction of sunflower plant height, had major adverse effects on achene yield and weight. Thus, different application schemes of PBZ or perhaps different growth regulators should be investigated to control plant height in sunflower.Keywords: Achene yield, growth retardants, height, lodging. RESUMO -Paclobutrazol (PBZ) é um bem conhecido retardador de crescimento da família triazol utilizado principalmente para controlar a altura e o crescimento das plantas, resultando em indivíduos

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“…1), and this is attributed to higher chlorophyll accumulation in leaves. Previous studies in different plants cultivars had shown leaves exhibited higher chlorophyll content when treated with PBZ (Setia et al, 1995;Bañón et al, 2002). A Study on Catharanthus roseus plant indicated that, the gibberellin biosynthesis inhibitor is capable of enhancing photosynthesis net assimilation rate and chlorophyll content (Abdul Jaleel et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Effects of Gibberellin and Gibberellin Biosynthesis Inhibitor (Paclobutrazol) Applications on Radish (Raphanus sativus) Taproot Expansion and the Presence of Authentic Hormones

Jabir¹,

Kinuthia²,

Faroug³

et al. 2017

IJAB

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To cite this paper: Jabir, B. AbstractRadish (Raphanus sativus L), is a taproot plant that undergoes noticeable organ size modification during plant growth and development. Paclobutrazol (PBZ) inhibits gibberellin biosynthesis and stimulates the proliferation and expansion of plant root cells in growth and developmental stages. Our study aims to examine the effects of PBZ treatment on the storage organ of plant. Four treatments were applied at the pre-cortex splitting stage of "Nau-yh" radish plant. Foliar spray treatments including PBZ (50 mg/L), gibberellic acid (GA3, 150 mg/L) and a mix of GA3+PBZ (150+50 mg/L) were applied. The results revealed considerable improvement in taproot growth and decreases development in aerial parts after 48 days of the growth. Paclobutrazol treatment showed enhanced growth parameters, most notably, root weight was 33% higher than GA 3 treatment, 28% higher than the control (H2O), and 23% higher than the PBZ+GA 3 treatment. PBZ also significantly promoted xylem development in tuberous root of radish. In contrast, the GA3 treatment inhibited tuberous root growth and enhanced shoot growth in plants. Furthermore, mass spectrometry assay confirmed the absence of gibberellins in paclobutrazol-treated plants, whereas auxin was found in all treatments. Our study provides the first evidence on the applicability of PBZ in root size expansion of radish plant.

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Influence of paclobutrazol on growth and yield of Brassica carinata A.Br.

Cited by 34 publications

References 18 publications

Interactive Role of Fungicides and Plant Growth Regulator (Trinexapac) on Seed Yield and Oil Quality of Winter Rapeseed

Interactive Role of Fungicides and Plant Growth Regulator (Trinexapac) on Seed Yield and Oil Quality of Winter Rapeseed

Sunflower response to repeated foliar applications of Paclobutrazol

Effects of Gibberellin and Gibberellin Biosynthesis Inhibitor (Paclobutrazol) Applications on Radish (Raphanus sativus) Taproot Expansion and the Presence of Authentic Hormones

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