Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 43 for “"Gibberellic acid"”.
-
Palatability and digestibility of grasses treated with gibberellic acid
Experiments were conducted to study the effect of gibberellic acid on palatability and digestibility of two grasses, orchard grass and Kentucky 31 fescue. The GA was applied as a spray, except one granular application, at rates of 18 to 72 gm./A. Sheep were used to test the grass for palatability …
-
Maize alpha-amylase: purification and properties and induction by gibberellic acid
… in wheat and barley half-seeds by addition of gibberellic acid (GA) to the incubation medium. In maize, induction in de-embryonated kernels by exogenous GA has been reported in some studies but not others. Alpha-amylase induction was investigated in maize by measuring activity in extracts from …
-
Enzymic Oxidations of Ent-Kaurene and Ent-Kaurenol in Gibberellic Acid Biosynthesis: Stereochemistry and Isotope Effects
… reactions leading to the plant growth regulator gibberellic acid. The stereochemistry and deuterium isotope effects (k(,H)/k(,D)) of these two oxidations were studied using stereospecifically labelled derivatives of 1 and 2 and microsomal enzyme extracts of Marah macrocarpus (wild cucumber) as …
-
The effect of gibberellic acid and AMO-1618 on chromatin ribonucleic acid polymerase in soybean hypocotyl tissue.
Dept. of Biological Sciences. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1971 .H76. Source: Masters Abstracts International, Volume: 40-07, page: . Thesis (M.Sc.)--University of Windsor (Canada), 1972.
-
COMPARATIVE EFFECTS OF GIBBERELLIC ACID AND N(6)-BENZYLADENINE ON GROWTH AND DEVELOPMENT OF DWARF WATERMELON SEEDLINGS
… (BA), a synthetic cytokinin, or 5 micrograms gibberellic acid (GA) significantly enhanced hypocotyl elongation in intact dwarf watermelon seedlings. Accompanying the increase in hypocotyl length was increased expansion of the cotyledons and inhibition of root growth. A study on dry matter …
-
The Effects of Gibberellic Acid, Smoke Water, and Cold Stratification on the Germination of Native Perennial Seed
… chemical solution treatments—water (control), gibberellic acid, smoke water, and gibberellic acid with smoke water. Seeds were evaluated and counted twice a week. Of the twenty evaluated species, sixteen had germination rates over 3% or 1 seed out of 30. Stratification increased germination by …
-
Inhibition of Flower Bud Initiation and Development in Apple by Defoliation, Gibberellic Acid and Crop Load Manipulation
… and fruit set. In another set of experiments, gibberellic acid (GA) treatments were evaluated to suppress FBI in "off" or light crop years. The GA4+7 treatments suppressed return bloom of both spur and lateral flowers more than the GA3 treatments. The effectiveness of GA declined with delayed …
-
The Effects of Gibberellic Acid, Smoke Water, and Cold Stratification on the Germination of Asclepias and Liatris Seeds
… </em>species using water (control), gibberellic acid (GA), smoke water (SW), or a combination of both (GA+SW) as chemical treatments. The primary objective was to determine whether smoke water could significantly enhance germination and serve as a viable pre-treatment method for …
-
Response of Different Height Genotypes of Sorghum Vulgare to Gibberellic Acid and Amo-1618 and Some Phenotypic Effects of One Dwarfing Gene
Made available in DSpace on 2014-12-04T20:17:15Z (GMT). No. of bitstreams: 1 6303244.pdf: 3308132 bytes, checksum: 82789d48a245c1deb041a250b5c5a013 (MD5) Previous issue date: 1962
-
Temporal patterns of metal ion and nanoparticle uptake by Lolium perenne in hydroponic systems in the presence of amendments ethylene diamine disuccinic acid (EDDS) and gibberellic acid
… a commercially available plant growth regulator, gibberellic acid (GA), and a biodegradable chelating agent, ethylene diamine-disuccinic acid (EDDS), on the translocation of free ions (Cu, Zn) alone and in combination in a hydroponic solution; 2) Explaining the behaviour and translocation trends …
-
The effect of light and heat on 4CH and 200CH potencies of gibberellic acid as a promoter of germination in barley seed (Hordeum vulgare), measured by a germination index
Mini-dissertation submitted in partial compliance with the requirements for the Master's Degree in Technology: Homoeopathy at Technikon Natal, Durban, South Africa, 2002.
-
Hormonal Regulation of Protein and Phytic Acid Mobilization in Germinating Barley
… regulated. This work examines the involvement of gibberellic acid (GA$\sb{3}$) in the hydrolysis of protein and phytic acid (myo -inositol hexakis-phosphate) reserves.
-
Effect of replacing nitrogen fertiliser with gibberellic acid on response of perennial ryegrass and white clover pasture : A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
… nitrate leaching and nitrous oxide emissions. Gibberellic acid (GA), a naturally occuring phytohormone, has shown in short term studies, to increase, then reduce pasture yield when applied exogenously. The purpose of this research was to compare the long term effects of substituting N …
-
Rapid multiplication of cassava (Manihot esculenta Crantz.) as a potential method to provide disease-free plant materials
… weeks in a double phase medium, with 0.05 $\mu$M gibberellic acid (GA$\sb3$) in LIMO and AMM solid phase, taller (3 cm), single shoots with $>$3.5 roots per explant were produced, while with APM and GA$\sb3$ cultures were shorter, multiple shoots but without roots. Double phase medium of either …
-
Greenhouse, laser radiation, and in vitro culture studies on the growth and propagation of Algerian ivy (Hedera canariensis L.)
… that the combination of benzylaminopurine (BA) + gibberellic acid (GA$\sb{4 + 7}$) (Promalin) promoted branching of Hedera canariensis (Algerian Ivy) better than applications of BA or GA$\sb{4 + 7}$ alone. Moreover, as the concentration of Atrinal is increased, branch length and leaf number …
-
Growth of Japanese holly as affected by nitrogen and growth regulators
… breaks and decreased the stem length, while gibberellic acid (GA) at 400 ppm decreased the number of primary bud breaks and increased stem length. The hormone responses persisted for approx. a month, starting a fortnight from the first application. GA₃ + BA caused very erratic responses. …
-
Hormonal regulation of phosphatidylcholine metabolism in Apium graveolens
… studies using plant growth inhibitors and gibberellic acid led to the hypothesis that two pools of phosphatidylcholine exist within the plant cell; one capable of producing signals involved in cell proliferation and the other capable of releasing signaling molecules which facilitate cell …
-
Use of Bacillus subtilis starter cultures during red sorghum malting
… of specific red sorghum enzymes are elucidated. Gibberellic acid and abscisic acid diffusion and cross-talk as factors affecting the synthesis of red sorghum malt α- and β-amylase activities are also discussed. The production of 3-indole acetic acid (IAA) by B. subtilis S499 was also a focus in …
-
The effects of the three soil-inhabiting fungi on peanuts grown under germ-free conditions
… supplemented with 1% sucrose and 0.03 ppm gibberellic acid. Plants were grown for 4 weeks in flasks placed between tubes of fluorescent lights at room temperature. When the plants were 2 to 3 inches tall the flasks were inoculated in the root zone singly and in all combinations with …
Page 1 of 3