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.
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Showing 1 to 18 of 18 for “"Stem elongation"”.
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PHOTOPERIODIC REGULATION OF RICE STEM ELONGATION BY THE GENE PINE1
… inflorescence formation is accompanied by stem elongation. While these two processes need to progress harmoniously, until recently no genetic link had been found that could integrate and coordinate both pathways. Only a recent study has shed light on a new and unexplored pathway that, via …
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GENETIC DISSECTION OF PINE1 CONTROLLED STEM ELONGATION AND NEW INSIGHTS INTO LONG DAY FLOWERING IN ORYZA SATIVA
… developmental processes: the shoot apical meristem (SAM) produces an inflorescence while, along the stem, internodes elongate to allow heading. Recently, PREMATURE INTERNODE ELONGATION1 (PINE1), a C2H2 zinc f inger transcription factor, was described as the responsible for stem elongation …
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Some aspects of nitrogen nutrition on selected Ilex
… shown to increase following the cessation of stem elongation until a level of tissue N was reached where a new flush of growth began. These N levels were approx the same for all N treatments. The time necessary to reach this level was dependent on the level of N added; 5 weeks for 300 ppm, 13 …
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Evaluation of Methods for Control of Vegetation in Utility Corridors
… of gibberellins, the plant hormones that control stem elongation). Choosing the appropriate control method is a decision that vegetation program managers should take based on many factors, like costs, environmental impacts, existing agreements with the landowners, terrain, public perception etc. …
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Phenology, canopy development, biomass and grain yield of annual canarygrass (Phalaris canariensis L.)
… cultivars generally increased their main stem final leaf number (FLN) with later SDs and reduced their FLN and their leaf stage at floral initiation (MHLSFI) upon exposure of the seedlings for up to 14 days at 5°C and 10°C but not at 15°C vernalizing treatments. Both wheat and oat had …
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Strategic applications of nitrogen fertiliser to increase the yield and nitrogen use efficiency of wheat.
… demand for nitrogen by wheat crops is during the stem-elongation phase when the crop is growing fastest, while early demand for nitrogen is small. The study utilised two field sites in South Australia (Hart and Mintaro) over two seasons (2003-04) to examine the effect of delayed applications of …
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I. Identification of thecis-regulatory elements of the Arabidopsis thaliana TCH3 gene. II. Developmental and molecular responses to touch stimulation in Arabidopsis mutants defective in ethylene responses
… of roots, root/shoot junctions, apical meristems, leaf vasculature, and trichomes. Expression patterns of the fusion genes suggest TCH3 is required in regions of the plant which are subjected to stress, either applied externally or generated during development. It has been suggested that …
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Flowering Control and Production of Strobilanthes dyerianus Mast. (Persian Shield)
… flower. Once the plant becomes reproductive, stem elongation slows and floral buds arise from every node, rendering the plants useless for propagation. The objectives of this research were to examine the effectiveness of manipulating environmental factors and the application of ethephon on …
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Description and control of flowering in California Poppy (Eschscholzia californica)
… of this study were to document the apical meristem changes of California poppy during the transition to flowering, to determine the minimum number of inductive long-day (LD) cycles required for induction and initiation of flowering, and to examine the effects of exogenously applied gibberellin …
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The effects of exogenous application of abscisic acid and α,α'-dipyridyl on cold acclimation and physical characteristics of Pisum sativum 'Alaska' seedlings
… leakage, elastic and plastic bend angles, and stem elongation were used to evaluate freezing injury, cell wall rigidity, and growth, respectively. The role of extensin, a structural hydroxyproline-rich glycoprotein suspected of being involved in cell changes during acclimation, was examined …
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Spectroscopy as a tool for the management of soil acidification
… lime to an acidic soil, in particular during the stem elongation growth stage. Vegetation indices that incorporated the red edge region (i.e. between visible and near-infrared wavelengths) revealed greater differences in spectral responses between liming rates. Overall, a number of successful …
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Ecology and Management of Pythium species in Float Greenhouse Tobacco Transplant Production
… than at seedling emergence, or after plant stem elongation when seedling roots had started to grow into underlying nutrient solutions, depending on the species of Pythium. High and low variation was observed among isolates of P. dissotocum and P. myriotylum, respectively. Pythium myriotylum …
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Juvenility and flowering responses in Chrysanthemum x superbum and Coreopsis grandiflora and lanceolata
… either cultivar of C. x superbum. LIP inhibited stem elongation by approximately 10 cm in the chilled Coreopsis cultivars and also in C. lanceolata 'Early Sunrise' grown from seed with no chilling. LIP did not affect the scape length of either chilled or unchilled plants.
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Ecology and horticultural potential of Dirca palustris
… flowers per inflorescence, and greater annual stem elongation than plants in the other populations. We found evidence that limited solar resources and tradeoffs in allocation of resources to floral and vegetative development may account for some of the phenotypic differences we observed. …
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Nitrogen Utilization in Ruminants Consuming High Quality Fresh Forages
… and endophyte free and infected TF (tillering, stem elongation, heading, and flowering stages) were evaluated for ruminal DM and CP degradation kinetics. Maturity within forage species had a greater effect than species on ruminal DM and CP degradation. Experiment 2, 168 Angus steers (246.8 $\pm$ …
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Characterization of activation tagged potato (Solanum tuberosum L.) mutants
… The nikku revertant plants exhibited near normal stem elongation, larger leaves and consistent rooting, and it was a case of partial reversion. Southern blot analyses indicated the presence of single T-DNA insertions on chromosome 10 in the up and on chromosome 12 in the nikku mutant. The …
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The adaptive potential of plant endopolyploidy in response to herbivory
… regrowth (particularly in axillary bud break and stem elongation), recent studies have targeted possible mechanisms for facilitating rapid regrowth in overcompensating organisms. One possible mechanism is the replication of the genome without mitotic cell division via an alternative cell cycle …
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Monitoring of Plant Chlorophyll and Nitrogen Status Using the Airborne Imaging Spectrometer AVIS
… map of the same field. The phenological stage of stem elongation (EC 30) turned out to be most suitable for the derivation of the nitrogen pattern. On the one hand, the crop condition at these stages determine yield and on the other hand the nitrogen pattern images were able to map the inner field …