Paclobutrazol increases canola seed yield by enhancing lodging and pod shatter resistance in Brassica napus L.

Kuai, Jie; Yang, Yang; Sun, Yingying; Zhou, Guangsheng; Zuo, Qingsong; Wu, Jian; Ling, Xiaoxia

doi:10.1016/j.fcr.2015.05.004

Cited by 48 publications

(40 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By that time, rapeseed had developed much stronger resistance to lodging and pod shattering, which can be attributed to the higher water content of pod walls. The increase in resistance counteracted the tendency to lodge and shatter, a tendency made stronger by the more plump stems and greater weight of pods -the outcome of extended growth (Kuai et al 2015). However, the overall yield declined, indicating that postponing and prolonging growth beyond the most optimal range contributes little to increasing the yield, a finding supported by earlier research (Barłóg and Grzebisz 2004).…”

Section: Discussionsupporting

confidence: 61%

“…Paclobutrazol also promotes the transfer of biomass accumulated during vegetative growth to seeds in significant amounts (ddo-Quaye et al 1985). Paclobutrazol sprays are known to reduce lodging in rapeseed (Rajala et al 2002;Tripathi et al 2003) and to boost production (Kuai et al 2015); however, the mechanism by which paclobutrazol does so and its effect on accumulation and allocation of biomass in rapeseed have seldom been studied -A lacuna the present study seeks to fill. So the objective of the research were to (i) quantitatively analyze the change trend of biomass accumulation and partitioning as affected paclobutrazol; and (ii) evaluate the relations between biomass, yield and resistance to pod shattering and lodging in rapeseed.…”

Section: Introductionmentioning

confidence: 91%

“…In each plot, the foliage was sprayed with 1.5 L of paclobutrazol either during the closed canopy stage or during the early bud stage. The agronomic traits of the two cultivars were reported by Kuai et al (2015). Yangguang 2009 had higher culm lodging resistance and pod shattering resistance whereas lower yield when compared to Fengyou 520.…”

Section: Experimental Designmentioning

confidence: 99%

See 2 more Smart Citations

Effects of paclobutrazol on biomass production in relation to resistance to lodging and pod shattering in Brassica napus L.

Kuai

Yang

et al. 2017

Journal of Integrative Agriculture

Self Cite

View full text Add to dashboard Cite

Paclobutrazol was sprayed at 0, 150, and 300 mg L −1 during the closed canopy stage and the early bud stage with two high-yielding cultivars of rapeseed, Yangguang 2009 and Fengyou 520. The impact of paclobutrazol on the accumulation and distribution of biomass and its relationship with yield, resistance to lodging and pod shattering were determined. All the treatments increased the resistance as well as yield. The maximum yield was obtained when paclobutrazol was applied during the closed canopy stage at 150 mg L-1. The plant's resistance to both lodging and pod shattering was the maximum when paclobutrazol was applied during the early bud stage at 300 mg L-1. Paclobutrazol also delayed senescence, with the higher concentration or later spraying leading to more obvious effects; improved the net assimilation rate before the early bud stage; and promoted the relative growth rate of the main growth organ at each stage of growth and maximized the rate and quantities of biomass accumulation. However, at the higher concentration and later spraying, the increments were smaller. The spraying also increased the rates of biomass allocation to roots, leaves, and pods, but the rate of allocation to stems decreased as the plants grew shorter. The higher allocation to roots and the lower allocation to stems favoured resistance to both lodging and pod shattering whereas higher allocation to leaves and pods favoured yield. The higher concentration or late spraying led to excessive biomass being allocated to roots, which decreased leaf biomass during the bud stage, leading to greater resistance but lower yields.

show abstract

Section: Discussionsupporting

confidence: 61%

Section: Introductionmentioning

confidence: 91%

Section: Experimental Designmentioning

confidence: 99%

See 1 more Smart Citation

Effects of paclobutrazol on biomass production in relation to resistance to lodging and pod shattering in Brassica napus L.

Kuai

Yang

et al. 2017

Journal of Integrative Agriculture

Self Cite

View full text Add to dashboard Cite

show abstract

“…Previously, its effects were reported in decreasing the stem length and also was involved in vascular formation (Solé Gil, 2016). It is also utilized in boosting the growth of agronomic and horticultural crops (Wang et al, 1986;Kuai et al, 2015). The Paclobutrazol mode of action is reported by holding up energy transport to mitochondria and preventing the biosynthesis gibberellin, thus, cell elongation will reduce, accompanied with shortened above-ground bone, while contributing in the enhancement of photosynthesis and minerals uptake, leading to major incresae in the final yield of rooty plants (Bai and Chaney, 2001;Nouriyani et al, 2012).…”

Section: Introductionmentioning

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

View full text Add to dashboard Cite

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.

show abstract

“…This pathogen can lead to tissue necrosis in affected plant parts or entire plants and this contributes to uneven maturation. The application of fungicides against this pathogen can increase canola yield by reducing lodging and pod shatter (Kuai et al, 2015). Fungicide application at flowering did not affect absolute total harvest losses and seed losses in canola which suggests that either the reduction in proportional total harvest losses was primarily the result of increased yield of the canola crop to which fungicides were applied, or more likely that fungicides were applied preferentially only to canola crops with high yield potential.…”

Section: Discussionmentioning

confidence: 97%

Evaluation of the Causes of On‐Farm Harvest Losses in Canola in the Northern Great Plains

et al. 2016

View full text Add to dashboard Cite

Canola (Brassica napus L.) is the main oilseed crop grown in the northern Great Plains (Canada). This species, however, also is associated with significant seed losses before and during harvest. To determine the factors that contribute to on‐farm harvest losses in B. napus, an extensive on‐farm survey was conducted in four regions across the northern Great Plains in 2010, 2011, and 2012. In addition to measuring on‐farm harvest losses on 310 fields, a survey questionnaire was used to collect agronomic data for each field and wind data from the nearest local weather station was used to determine wind speed during the harvest season. This study showed that total on‐farm harvest losses in canola are a complex phenomenon. This study identified that managing harvest losses in B. napus begins at the time of planting. Management factors that contributed to increased yield were linked to lower proportional B. napus harvest losses. Other factors that contributed to reduced proportional harvest losses included a fungicide application at flowering, earlier windrowing and harvest dates, lower combine harvester ground speed, and reduced windrower width. Factors considered by producers as important, such as combine manufacturer or B. napus variety did not contribute significantly to total harvest losses in this crop. Nevertheless, clear management practices were identified that can be employed to minimize on‐farm harvest losses in B. napus. A better understanding of the contributions of environmental variables to harvest losses in this species is required, particularly as interest in direct‐harvesting B. napus continues to increase in western Canada.

show abstract

Paclobutrazol increases canola seed yield by enhancing lodging and pod shatter resistance in Brassica napus L.

Cited by 48 publications

References 49 publications

Effects of paclobutrazol on biomass production in relation to resistance to lodging and pod shattering in Brassica napus L.

Effects of paclobutrazol on biomass production in relation to resistance to lodging and pod shattering in Brassica napus L.

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

Evaluation of the Causes of On‐Farm Harvest Losses in Canola in the Northern Great Plains

Contact Info

Product

Resources

About