نتایج جستجو برای: rooting depth

تعداد نتایج: 164156  

Journal: :American journal of botany 2013
Sara Palacio C Guillermo Bueno José Azorín Melchor Maestro Daniel Gómez-García

UNLABELLED PREMISE OF THE STUDY Wild-boar soil disturbance (i.e., rooting) increases the abundance of some species of geophytes (i.e., plants with underground renewal buds) in upland meadows. However, the mechanisms that could lead to such enhanced prevalence remain unexplored. • METHODS We analyzed the effects of wild-boar disturbance on the size, nutrient (N, P, K, C, and total ash), and...

2012
Wisam F. Al-Azzo Borhanuddin Mohd. Ali

This paper addresses the problem of peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. It also introduces a new PAPR reduction technique based on adaptive square-rooting (SQRT) companding process. The SQRT process of the proposed technique changes the statistical characteristics of the OFDM output signals from Rayleigh distribution to Gaussian-like ...

Journal: :The Plant cell 2012
Laurent Gutierrez Gaëlle Mongelard Kristyna Floková Daniel I Pacurar Ondrej Novák Paul Staswick Mariusz Kowalczyk Monica Pacurar Hervé Demailly Gaia Geiss Catherine Bellini

Vegetative shoot-based propagation of plants, including mass propagation of elite genotypes, is dependent on the development of shoot-borne roots, which are also called adventitious roots. Multiple endogenous and environmental factors control the complex process of adventitious rooting. In the past few years, we have shown that the auxin response factors ARF6 and ARF8, targets of the microRNA m...

2003
B. M. Doyle J. F. Roycroft A. C. Cassells

The potential of slow phase chlorophyll fluorescence (CF) to predict the physiological status of Pelargonium propagules (seven varieties in 28 different batches) post shipment or post simulated shipment was evaluated. The rooting ability of the cuttings was recorded and used to confirm the results from the CF data. The use of cardboard versus polystyrene packaging and the inclusion of two treat...

Journal: :Molecular phylogenetics and evolution 2011
Seán G Brady Jessica R Litman Bryan N Danforth

The placement of the root node in a phylogeny is fundamental to characterizing evolutionary relationships. The root node of bee phylogeny remains unclear despite considerable previous attention. In order to test alternative hypotheses for the location of the root node in bees, we used the F1 and F2 paralogs of elongation factor 1-alpha (EF-1α) to compare the tree topologies that result when usi...

2014
Rania A. Taha N. S. Mustafa

Shoot tips of two fig cultivars (Conadria and Black Mission) proliferated in vitro, were cultured on modified MS medium supplemented with 0.5 mg/l 6-benzylaminopurine (BAP). The present investigation aimed to investigate the effect of different medium salt strengths (Double, full, half and quarter) and different sources of carbon (sucrose and fructose) at different concentrations (0.1 and 0.2 m...

Journal: :Plant physiology 2006
Céline Sorin Luc Negroni Thierry Balliau Hélène Corti Marie-Pierre Jacquemot Marlène Davanture Göran Sandberg Michel Zivy Catherine Bellini

A lack of competence to form adventitious roots by cuttings or explants in vitro occurs routinely and is an obstacle for the clonal propagation and rapid fixation of elite genotypes. Adventitious rooting is known to be a quantitative genetic trait. We performed a proteomic analysis of Arabidopsis (Arabidopsis thaliana) mutants affected in their ability to develop adventitious roots in order to ...

Journal: :Indian journal of experimental biology 2000
M Sharma M Modgil D R Sharma

Successful in vitro propagation of clonal apple rootstock MM106 was achieved by culturing axillary buds on MS basal medium with BAP (1 mg/L), GA3 (0.5 mg/L) and IBA (0.1 mg/L). Use of liquid medium (LM) in initial cultures reduced phenol exudation to a greater extent and gave maximum sprouting percentage when transferred to solid MS medium. Phloroglucinol (PG) did not enhance sprouting of buds ...

2012
Mostafa Khoshhal Sarmast Hassan Salehi Morteza Khosh-Khui

The family Araucariaceae encompasses several evergreen forest tree species, which has a high ornamental value due to being a good specimen and having symmetrical branches. Conventional propagation of Araucaria excelsa R. Br. var. glauca by cutting has limited success because of topophysis and difficult-to-root characteristics, and grafting is accompanying incompatibility. The aim of this resear...

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