scholarly journals ROLES OF PLANT GROWTH REGULATORS ON ADVENTITIOUS ROOTING OF SOME BANANA GENOTYPES (Musa sp.)

2009 ◽  
Vol 12 (9) ◽  
pp. 23-30
Author(s):  
Huong Thanh Tran ◽  
Viet Trang Bui ◽  
Feng Teng-Yung
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Adventitious Rooting ◽  
Histological Changes ◽  
Apical Shoot ◽  
Musa Sp ◽  
Meristematic Region ◽  
Young Leaves ◽  
Root Primordium

Some of Musa cultivars were used in this study: Cauman (AA), Giahuong (AAA), Su (AAB) and Hot (BB). Auxins (IAA, NAA, or 2,4-D at different concentrations) were used to induce adventitious rooting from explants containing a apical shoot and young leaves. Histological changes in the rooting were analysed under microscope. This process included following stages: activation of cell divisions, initiating of meristematic region, formation of root primordium, and root elongation. Roles of genotypes, plant growth regulators in this adventitious rooting were discussed.

scholarly journals EFFECT OF PLANT GROWTH REGULATORS IN ADVENTITIOUS ROOTING OF CUTTING IN SOURSOP (ANNONA MURICATA L.)

2021 ◽  
Vol 21 (Suppliment-1) ◽  
pp. 2013-2015
Author(s):  
T. Uma Maheswari ◽  
S. Sinduja ◽  
A. Rajavel ◽  
J. Padmanaban ◽  
R. Sudhagar
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Adventitious Rooting ◽  
Annona Muricata

THE INHIBITION OF BRUSSELS SPROUT LEAF SENESCENCE BY KININS

1967 ◽  
Vol 45 (7) ◽  
pp. 1019-1024 ◽  
Author(s):  
D. T. Dennis ◽  
M. Stubbs ◽  
T. P. Coultate
Keyword(s):  
Electron Microscopy ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Leaf Senescence ◽  
Growth Regulators ◽  
Brussels Sprout ◽  
Cell Organelles ◽  
Leaf Discs ◽  
Mature Leaves ◽  
Young Leaves

The senescence of leaf discs cut from mature Brussels sprout leaves is retarded by a number of kinins. Other plant growth regulators are without effect. When young expanding leaves are treated with kinins the senescence processes appear to be accelerated. The effect of N-6-benzyladenine on the structure of the cell organelles in young and old leaves has been studied by electron microscopy. It has been found that in mature leaves the chloroplast is the organelle which senesces first and the breakdown is retarded by N-6-benzyladenine. The mitochondria are very stable. In young leaves N-6-benzyladenine appears to over-stimulate the chloroplast, causing enlargement and excessive membrane synthesis.

scholarly journals Plant Growth Regulators Affecting Leaf Traits of Loquat Seedling

2020 ◽  
pp. 73-85
Author(s):  
Muhammad Imam Surya ◽  
Lily Ismaini ◽  
Suluh Normasiwi ◽  
Dwinda Mariska Putri ◽  
Vandra Kurniawan
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Growth And Development ◽  
Leaf Growth ◽  
Leaf Traits ◽  
Naphthalene Acetic Acid ◽  
General View ◽  
Stomata Size ◽  
Young Leaves

Leaf is a key functional traits that shows respond of changes in plant physiology. This experiment aimed to study the changes on the leaf traits of loquat seedling that treated with plant growth regulators (PGRs). Three types of PGRs, auxin (naphthalene acetic acid/NAA), gibberellin (gibberellic acid/GA3) and cytokinin (benzylaminopurine/BA) with four doses (0, 25, 50, 100 ppm) were sprayed onto the leaves of loquat seedling. We observed nine parameters, PGRs treatments were significantly affecting eight parameters, while there were one parameter is not significantly affected. The results showed that either in mature or young leaves, PGRs treatments were significantly affecting in eight parameters the growth and development of leaves, such as leaf surface area, specific leaf area, fresh and dry weight leaf, water content, number of stomata, size of stomata, chlorophyll and transpiration rate compared to control. These results gave general view that PGRs treatment might stimulate leaf growth and development including photosynthesis and respiration. However, PGRs was not significantly affecting the number of stomata in young leaves. The application of PGRs doses was not always inline with the mean value of each parameters and it could be linear or quadratic models. The findings of this research could provide the recommendation for application of PGRs during seedling growth, and theoretical basis for comparison between mature and young leaves after PGRs application.

scholarly journals Adventitious Rooting of Lavandula x intermedia Cuttings

2021 ◽  
Vol 39 (4) ◽  
pp. 150-159
Author(s):  
Derek Reed ◽  
Thayne Montague ◽  
Catherine Simpson
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Butyric Acid ◽  
Growth Regulators ◽  
Adventitious Rooting ◽  
Peat Moss ◽  
Media Selection ◽  
Naphthaleneacetic Acid ◽  
Effects Of Media ◽  
Root Quality

Abstract Due to challenges associated with lavender propagation, Texas hybrid lavender (lavandin) growers require revised propagation information. Therefore, experiments investigated effects of media and plant growth regulators (PGR) on rooting of three different lavandin (Lavandula x intermedia) cultivars. PGRs applied to cuttings were naphthaleneacetic acid (NAA), or indole-3-butyric acid (IBA) at three concentrations. In addition, four rooting media were examined. Cuttings exposed to a peat moss/sand medium had the greatest mean overall rooting percentage, number of roots, and regardless of cultivar, cuttings exposed to the peat moss/sand medium had the longest roots. In general, mean rooting data were also greatest for cuttings dipped in NAA at 0.5 and 1.0 g·L−1 (500 and 1000 ppm, respectively). Overall, across all media and PGR treatments ‘Grosso' cuttings tended to have the greatest rooting percentage and longest roots. In addition, compared to the no PGR treatment, ‘Provence' and ‘Hidcote Giant' cuttings exposed to the peat moss/sand medium and greater PGR concentrations produced cuttings with an increased mean rooting percentage and longer roots. When rooting lavandin cultivars, results indicate correct media selection, PGR formulation, and PGR concentration determine propagation success. Index words: lavandin, Lavandula x intermedia Emeric ex Loisel, peat moss, perlite, rooting percentage, root quality, sand. Chemicals used in this study: indole-3-butyric acid (IBA; 0.5, 1.0, and 1.5 g.L−1); naphthaleneacetic acid (NAA; 0.5, 1.0, and 1.5 g.L−1). Species used in this study: ‘Grosso', ‘Provence', and ‘Hidcote Giant' lavandin (Lavandula x intermedia Emeric ex Loisel.).

Wheat regenerants in the system of rapid assessment of the effect of 24-epibrassinolide

Biomics ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 394-397
Author(s):  
Seldimirova O.A. ◽  
M.V. Bezrukova ◽  
N.N. Кruglova ◽  
F.М. Shakirova
Keyword(s):  
Plant Growth ◽  
Experimental Model ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Drought Resistance ◽  
Rapid Assessment ◽  
Immature Embryo ◽  
Model System ◽  
Wheat Cultivars ◽  
Experimental Model System

The influence of 24-epibrassinolide on the efficiency of regenerants obtained from embryonic calli formation was studied in wheat cultivars contrast for drought resistance. The possibility of using the experimental model system «immature embryo – embryonic callus – regenerant» in the rapid assessment of the effect of antistress plant growth regulators is shown.

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