Influence of a Triazole Plant Growth Regulator on Root and Shoot Development and Nitrogen Utilisation of Oilseed Rape (Brassica napus L.)

1990 ◽  
Vol 165 (4) ◽  
pp. 257-262 ◽  
Author(s):  
Gundula Bruns ◽  
R. Kuchenbuch ◽  
J. Jung
Keyword(s):  
Brassica Napus ◽  
Plant Growth ◽  
Oilseed Rape ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Shoot Development ◽  
Brassica Napus L ◽  
Nitrogen Utilisation

Effect of triapenthenol plant-growth regulator on canola height, yield, side branches and pod density

1992 ◽  
Vol 72 (4) ◽  
pp. 1153-1156 ◽  
Author(s):  
K. J. Kirkland
Keyword(s):  
Brassica Napus ◽  
Plant Growth ◽  
Field Experiment ◽  
Plant Height ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Growth And Development ◽  
Management Tool ◽  
Brassica Napus L ◽  
Growing Conditions

A 3-yr field experiment was conducted at the Scott Experimental Farm to determine the effect of the growth regulator, triapenthenol, on the growth and development of Argentine canola (Brassica napus L.). Triapenthenol reduced plant height 25–45 cm under optimal growing conditions. Increases in yield, branches and total pods were observed. Application at the bud stage was more effective than earlier treatment in the rosette. It was concluded that triapenthenol application to canola could be a useful management tool, particularly under optimal growing conditions.Key words: Canola, growth regulator, RSW-0411, lodging

The Plant Growth Regulator Lipo-chitooligosaccharide (LCO) Enhances the Germination of Canola (Brassica napus [L.])

2014 ◽  
Vol 34 (1) ◽  
pp. 183-195 ◽  
Author(s):  
Timothy Schwinghamer ◽  
Alfred Souleimanov ◽  
Pierre Dutilleul ◽  
Donald Smith
Keyword(s):  
Brassica Napus ◽  
Plant Growth ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Brassica Napus L

scholarly journals Genome Mining and Evaluation of the Biocontrol Potential of Pseudomonas fluorescens BRZ63, a New Endophyte of Oilseed Rape (Brassica napus L.) against Fungal Pathogens

2020 ◽  
Vol 21 (22) ◽  
pp. 8740
Author(s):  
Daria Chlebek ◽  
Artur Pinski ◽  
Joanna Żur ◽  
Justyna Michalska ◽  
Katarzyna Hupert-Kocurek
Keyword(s):  
Brassica Napus ◽  
Plant Growth ◽  
Pseudomonas Fluorescens ◽  
Oilseed Rape ◽  
Plant Growth Promotion ◽  
Fungal Pathogens ◽  
Growth Promotion ◽  
Genome Mining ◽  
Plant Colonization ◽  
Brassica Napus L

Endophytic bacteria hold tremendous potential for use as biocontrol agents. Our study aimed to investigate the biocontrol activity of Pseudomonas fluorescens BRZ63, a new endophyte of oilseed rape (Brassica napus L.) against Rhizoctonia solani W70, Colletotrichum dematium K, Sclerotinia sclerotiorum K2291, and Fusarium avenaceum. In addition, features crucial for biocontrol, plant growth promotion, and colonization were assessed and linked with the genome sequences. The in vitro tests showed that BRZ63 significantly inhibited the mycelium growth of all tested pathogens and stimulated germination and growth of oilseed rape seedlings treated with fungal pathogens. The BRZ63 strain can benefit plants by producing biosurfactants, siderophores, indole-3-acetic acid (IAA), 1-aminocyclopropane-1-carboxylate (ACC) deaminase, and ammonia as well as phosphate solubilization. The abilities of exopolysaccharide production, autoaggregation, and biofilm formation additionally underline its potential to plant colonization and hence biocontrol. The effective colonization properties of the BRZ63 strain were confirmed by microscopy observations of EGFP-expressing cells colonizing the root surface and epidermal cells of Arabidopsis thaliana Col-0. Genome mining identified many genes related to the biocontrol process, such as transporters, siderophores, and other secondary metabolites. All analyses revealed that the BRZ63 strain is an excellent endophytic candidate for biocontrol of various plant pathogens and plant growth promotion.

Segregation of Triazine-Resistant Chloroplasts after Introduction into Winter Type Oilseed Rape (Brassica napus L.) by Protoplast Fusion

1990 ◽  
Vol 45 (5) ◽  
pp. 478-481
Author(s):  
R. Hain ◽  
J. E. Thomzik
Keyword(s):  
Brassica Napus ◽  
Plant Growth ◽  
Protoplast Fusion ◽  
Oilseed Rape ◽  
Field Experiments ◽  
Rflp Analysis ◽  
Winter Oilseed Rape ◽  
Brassica Napus L ◽  
X Irradiation ◽  
Spring Type

Abstract Triazine-resistant chloroplasts of the Canadian spring oilseed rape variety OAC Triton were transferred into four German winter oilseed rape lines and two cultivars of double-low quality by means of protoplast fusion. X-irradiation has been used to reduce the amount of nuclear D N A of the spring type cultivar and to promote cybrid formation. RFLP-analysis showed that some regenerants and their progeny carried both types of chloroplasts. In some instances regenerants and progeny containing mixtures of both chloroplasts not kept under selective conditions lost their triazine-resistant chloroplasts completely during further plant growth. Preliminary results of greenhouse and field experiments indicate that volunteer plants can be eliminated by application of 150-300 g/ha metribuzin (SencorR, Bayer AG) in a stand of triazine-resistant oilseed rape of double-low quality.

The number of generations of Heterodera schachtii completed on oilseed rape (Brassica napus L.) during the UK growing season

Nematology ◽  
2015 ◽  
Vol 17 (5) ◽  
pp. 557-565 ◽  
Author(s):  
Stephen Kakaire ◽  
Ivan G. Grove ◽  
Patrick P.J. Haydock
Keyword(s):  
Brassica Napus ◽  
Plant Growth ◽  
Oilseed Rape ◽  
Growing Season ◽  
Heterodera Schachtii ◽  
Brassica Napus L ◽  
First Report ◽  
Two Generations ◽  
Growth Differences ◽  
The Uk

The number of generations completed by a UK field population of Heterodera schachtii on winter and spring oilseed rape (OSR; Brassica napus L.) during the growing season of 2010/2011 was investigated. The experiments were conducted in pots outdoor using UK OSR winter cultivars (cvs) Flash and Castille and spring cvs Belinda and Heros. The results indicated that temperature was crucial in determining the number of generations completed on OSR during the growing season. At least one generation was completed on cv. Castille, whilst two generations were completed on cvs Flash, Belinda and Heros during the growing season. Development of H. schachtii was faster on hybrid OSR cvs Flash and Belinda, suggesting that the hybrids were better hosts of H. schachtii than the conventional cvs Castille and Heros. Cultivar Flash was more susceptible to H. schachtii infection than cv. Castille, while cv. Belinda was more susceptible than cv. Heros. However, no major plant growth differences were observed between the cvs investigated. This is the first report on the number of generations of H. schachtii completed on current cultivars of OSR in the UK.

scholarly journals Cyclanilide Promotes Shoot Production and Flowering of Coreopsis and Coneflower during Nursery Production

2011 ◽  
Vol 29 (3) ◽  
pp. 108-114
Author(s):  
M.E. Farris ◽  
G.J. Keever ◽  
J.R. Kessler ◽  
J.W. Olive
Keyword(s):  
Plant Growth ◽  
Plant Development ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Shoot Development ◽  
Herbaceous Perennials ◽  
Foliar Sprays ◽  
Concentration Method ◽  
Shoot Production ◽  
Nursery Production

Abstract Herbaceous perennials were screened for increased branching and flowering in response to foliar sprays of cyclanilide (CYC), a plant growth regulator with cytokinin-like activity. Coreopsis verticillata ‘Creme Brulee’ (‘Crème Brulee’ coreopsis) and Rudbeckia fulgida ‘Goldsturm’ (‘Goldsturm’ coneflower), the only two species that responded positively to CYC, were used in subsequent experiments evaluating CYC concentration, method of application, and stage of plant development at application. Foliar sprays of 25 to 100 ppm CYC promoted increased shoot development, flowering, and plant width of coreopsis and coneflower, although flowering was delayed. Applying foliar sprays to both species when they were vegetative resulted in similar or more new shoots and flowers than an application when plants exhibited early signs of approaching flowering or at both stages. Increases in shoot counts from the application of substrate drenches of CYC to coreopsis and coneflower generally were less than from foliar sprays, while flower counts either decreased with increasing CYC concentration (coreopsis) or were unaffected (coneflower).

scholarly journals Unraveling Mechanisms and Impact of Microbial Recruitment on Oilseed Rape (Brassica napus L.) and the Rhizosphere Mediated by Plant Growth-Promoting Rhizobacteria

2021 ◽  
Vol 9 (1) ◽  
pp. 161
Author(s):  
Ying Liu ◽  
Jie Gao ◽  
Zhihui Bai ◽  
Shanghua Wu ◽  
Xianglong Li ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Plant Growth ◽  
Community Composition ◽  
Oilseed Rape ◽  
Plant Growth Promoting Rhizobacteria ◽  
16S Rrna Genes ◽  
Rrna Genes ◽  
Brassica Napus L ◽  
Plant Growth Promoting ◽  
Growth Promoting

Plant growth-promoting rhizobacteria (PGPR) are noticeably applied to enhance plant nutrient acquisition and improve plant growth and health. However, limited information is available on the compositional dynamics of rhizobacteria communities with PGPR inoculation. In this study, we investigated the effects of three PGPR strains, Stenotrophomonas rhizophila, Rhodobacter sphaeroides, and Bacillus amyloliquefaciens on the ecophysiological properties of Oilseed rape (Brassica napus L.), rhizosphere, and bulk soil; moreover, we assessed rhizobacterial community composition using high-throughput Illumina sequencing of 16S rRNA genes. Inoculation with S. rhizophila, R. sphaeroides, and B. amyloliquefaciens, significantly increased the plant total N (TN) (p < 0.01) content. R. sphaeroides and B. amyloliquefaciens selectively enhanced the growth of Pseudomonadacea and Flavobacteriaceae, whereas S. rhizophila could recruit diazotrophic rhizobacteria, members of Cyanobacteria and Actinobacteria, whose abundance was positively correlated with inoculation, and improved the transformation of organic nitrogen into inorganic nitrogen through the promotion of ammonification. Initial colonization by PGPR in the rhizosphere affected the rhizobacterial community composition throughout the plant life cycle. Network analysis indicated that PGPR had species-dependent effects on niche competition in the rhizosphere. These results provide a better understanding of PGPR-plant-rhizobacteria interactions, which is necessary to develop the application of PGPR.

scholarly journals The Impact of Growth-Promoting Streptomycetes Isolated from Rhizosphere and Bulk Soil on Oilseed Rape (Brassica napus L.) Growth Parameters

2021 ◽  
Vol 13 (10) ◽  
pp. 5704
Author(s):  
Renata Cinkocki ◽  
Nikola Lipková ◽  
Soňa Javoreková ◽  
Jana Petrová ◽  
Jana Maková ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Plant Growth ◽  
Oilseed Rape ◽  
Shoot Length ◽  
Bulk Soil ◽  
In Planta ◽  
Brassica Napus L ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
The Impact

Inoculation of Streptomyces to improve oilseed rape (Brassica napus L.) yields and minimise the use of chemical fertilisers is a promising sustainable strategy. In this study, we isolated 72 actinobacterial strains from rhizosphere of oilseed rape and maize and from bulk soil for screening and characterising their antimicrobial activity. Nine promising strains, identified as Streptomyces sp. by morphology, physiological characteristics, and 16S rRNA gene sequencing, were selected for their plant growth-promoting traits and in planta experiments. The actinobacterial strains were positive for IAA production, siderophore production, and HCN production. In planta experiments were conducted by soaking the oilseed rape seeds in the actinobacterial suspension, followed by plant growth under controlled conditions in a cultivate chamber (22–28 °C, 8 h dark/16 h light, constant humidity 80%). We recorded root and shoot length (cm) and seedling fresh weight (g). For most of the abovementioned parameters, a significant enhancement was observed with strain KmiRC20A118 treatment. The length of the root increased by 53.14%, the shoot length increased by 65.6%, and the weight of the fresh plant by 60% compared to the control. The integrated application of PGPS (Plant Growth Promoting Streptomyces) from the rhizosphere of oilseed rape is a promising strategy to improve the growth of oilseed rape.

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