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Storage of rooted woody cuttingsRunge, George Fredrick. January 1957 (has links)
Call number: LD2668 .T4 1957 R84 / Master of Science
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Application de la méthode graphique à l'étude du mécanisme de la déglutition chez les mammifères et les oiseaux Recherches anatomiques sur le bouturage des cactées /Arloing, Saturnin January 1900 (has links)
Thèse : Botanique : Faculté des sciences de Paris : 1877. Thèse : Zoologie : Faculté des sciences de Paris : 1877. / Titre provenant de l'écran-titre. Bibliogr. p. 93-94.
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Clonal variations in rooting of Simmondsia chinensis (Link) SchneiderCardran, Paula January 1980 (has links)
No description available.
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Aspects of the role of cytokinins in adventitious root formation.Taylor, Joslyn Leanda Susan. 14 January 2014 (has links)
The initiation and development of adventitious roots in cuttings are highly
complex processes, influenced by both endogenous and exogenous factors.
These vary from the environmental factors prior to the striking of the cutting,
to the anatomical and physiological factors, within the stem. Encompassed are
the nutrient status, physiological age and degree of differentiation of the
tissues, and the balance of endogenous rooting inhibitors and/or promoters
(including hormones).
The role of cytokinins in root initiation and development has been perceived
as that of an inhibitor. This investigation considered several aspects of the
role played by cytokinins in the process of root development.
A qualitative/quantitative analysis of the cytokinin-like activity in stem
cuttings of several plants, including both easy- and difficult-to-root species
was conducted on a comparative basis. There was no clear correlation
between the type / level of cytokinins detected in the cuttings and the relative
ease of root formation. Both qualitative and quantitative changes in the
compounds exhibiting activity in the soybean callus bioassay were observed
over the period of root formation in Impatiens stem cuttings.
The effects on root formation in cuttings of exogenously applied auxins and
cytokinins were investigated. Auxins generally promoted root number and
elongation at relatively high concentrations (10[-4] M), but showed less effect
on lateral root initiation and development. At high concentrations, cytokinins
strongly inhibited root development, but did promote lateral root growth. In
suspension culture, the effect of these hormones differed slightly, with IAA
and IBA having no significant effect on root development, but NAA strongly
stimulating lateral root initiation. Zeatin (10¯¹¹ M) significantly increased root
length and the number of lateral roots produced. The effect of treatment of the stem cuttings with potassium permanganate
and centrifugation was examined. While both these treatments have been
perceived to increase root production in cuttings, no significant improvement
in rooting ability following centrifugation (relative to the control) was
observed. Impatiens cuttings centrifuged in the presence of distilled water
showed a significantly reduced rooting ability relative to those centrifuged in
the dry state. Treatment with an 8-hour pulse in 0.05 % potassium
permanganate significantly increased the average root length.
These treatments had an effect on the cytokinin levels and distribution in the
stem cuttings. Slightly higher levels of cytokinins were associated with the
increase in root number and length in both experiments. / Thesis (M.Sc.)-University of Natal, Pietermaritzburg, 1996.
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Effect of acacia gum on bare root nursery crops and in cutting propagationCreel, Sarah Frances. January 2006 (has links) (PDF)
Thesis(M.S.)--Auburn University, 2006. / Abstract. Includes bibliographic references.
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Stem cutting propagation of the endangered species, Clematis socialis (Kral)Johnson, Connie Nicole, January 2006 (has links) (PDF)
Thesis(M.S.)--Auburn University, 2006. / Abstract. Vita. Includes bibliographic references.
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Cutting propagation and container production of Rudy Haag burning bush [Euonymus alatus 'Rudy Haag']Poston, Amy Lynn, January 2007 (has links) (PDF)
Thesis (M.S.)--University of Kentucky, 2007. / Title from document title page (viewed on June 28, 2007). Document formatted into pages; contains: vii, 74 p. Includes abstract and vita. Includes bibliographical references (p. 64-73).
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Influence of ozone on two white clover (Trifolium repens) clones :: a phenotypic investigation /Johnson, Michael S. 01 January 1996 (has links) (PDF)
No description available.
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ROOT DEVELOPMENT OF STEM CUTTINGS IN SELECTED PLANT SPECIES AS INFLUENCED BY BORON, CALCIUM, AND 1H-INDOLE-BUTANOIC ACID (IBA).Livingston, Margaret. January 1985 (has links)
No description available.
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Rooting techniques for selected tree speciesLaubscher, Charles Petrus January 1999 (has links)
Thesis (MTech (Horticulture))--Cape Technikon, Cape Town, 1999 / Vegetative propagation techniques for rooting of cuttings of indigenous tree species, i.e.
Olea europaea subsp. African, Podocarpus falcatus, Syzigium cordatum and introduced
species, i.e. Acacia mearnsii, A. melanoxylon, Eucalyptus grandis and Melia azedarach
were studied and improved at the Cape Technikon nursery from May 1994 to June 1998.
These tree species are considered problematic since the indigenous species produce
unwanted fruits in urban areas which attract frugivores, while the introduced species are a
threat to indigenous vegetation and natural habitats, though they are of great commercial
value.
The progress in mutation breeding of sexual sterility in most of the problematic species
created a need to propagate them vegetatively. Without cloning of seedless species, their
beauty and economic value to South Africa will be lost, as the indigenous species will be
neglected, while invasive species will continue to threaten the natural habitat of indigenous
species.
Experiments were conducted to test age, type and length of cuttings, environmental factors,
growth season, hormone application, various treatments and rooting media for each of
these species. This study showed that relatively few publications relevant to the vegetative
propagation of indigenous tree species are available. However, some introduced species,
e.g. Eucalyptus grandis, are propagated successfully for commercial forestry purposes.
Ficus sur and Syzicium cordatum showed the highest rooting success, i.e. 85-90%,
followed by Olea europaea subsp. africana (75-80%), and Podocarpus falcatus (60%). The
introduced species showed no rooting success, however, callusing in Eucalyptus grandis
(35-61%), and Melia azedarach (50%), and survival rates in Acacia mearnsii (10%) and A.
melanoxylon (20%) were achieved. Treatments, i.e. etiolation, placing plants under stress,
sealing basal stems of cuttings, and fungicide treatments all showed positive results in
promoting callusing success. The study showed that rooting success in individual species
are directly related to the growth stage of parent plants as well as the season during which
the cuttings were taken.
With progress towards successful vegetative propagation of sterile problem plant species,
propagators and horticulturists can in future apply these improved techniques. These
plants will then continue to supply timber, fire wood and improve aesthetics in the South
African urban environment.
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