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Dissertations / Theses on the topic 'Plant growth regulators'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Johnson, Robert Jean. "Plant growth regulators : an alternative to frequent mowing /." Thesis, Monterey, California : Naval Postgraduate School, 1990. http://handle.dtic.mil/100.2/ADA232051.

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Thesis (M.S. in Management)--Naval Postgraduate School, June 1990.<br>Thesis Advisor(s): Carrick, Pual M. "June 1990." Description based on signature page. DTIC Identifier(s): Plant growth regulators, growth indicators. Author(s) subject terms: Plant growth regulators, growth indicators. Includes bibliographical references (p. 39-40). Also available online.

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2

Soomro, M. H. "The effects of plant parasitic nematodes and plant growth regulators on root growth of graminacious plants." Thesis, University of Reading, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378682.

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3

Nasim, Muhammad. "Response of rice plants to plant growth regulators under saline conditions." Thesis, University of Aberdeen, 2003. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU164162.

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Responses of rice to plant growth regulators on germination and seedling growth under NaCl salinity were studied to identify possible means of increasing salinity tolerance. Gibberellic acid (GA) promoted germination processes and a-amylase activity and increased plumule but reduced radicle growth after emergence. GA partitioned more metabolites towards the plumule than the radicle. Chlormequat (CCC) showed no beneficial effects and abscisic acid (ABA) inhibited germination under saline conditions. Overall there was no large difference in the performance of three rice varieties, BR29, IR8 and

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4

Oliver, J. F. "The effects of plant growth regulators and plant parasitic nematodes on cereal root growth." Thesis, University of Reading, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233539.

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5

Christensen, Cynthia Lehua Warnock. "The effect of plant growth regulators on the growth of Closterium moniliferum." PDXScholar, 1990. https://pdxscholar.library.pdx.edu/open_access_etds/3968.

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Physiologic responses to Gibberellic Acid (GA), I-Naphthalene Acetic Acid (NAA), Benzylaminopurine (BAP), and Abscisic Acid (ABA). suggest that Oosterium monilfferum has the ability to utilize these plant growth factors. The growth promoters NAA and GA both increased growth when added to the media. The cell division regulator BAP (a synthetic cytokinin). also had a promotive effect on growth. Abscisic acid was found to be inhibitive to growth.

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6

Fuentes, Hector David. "Studies in the use of plant growth regulators on phytoremediation /." View thesis View thesis, 2001. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030505.150607/index.html.

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Thesis (Ph.D.) -- University of Western Sydney, Macarthur, 2001.<br>A thesis presented to the University of Western Sydney, in partial fulfillment of the requirements for the degree of Doctor of Philosophy, December, 2001. Bibliography : leaves 163-173.

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7

Temple-Smith, Kay Elizabeth. "The mode of action of novel plant growth regulators." Thesis, University of Bristol, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317880.

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8

Norton, E. R., L. J. Clark, H. Borrego, and Bryan Ellsworth. "Evaluation of Two Plant Growth Regulators from LT Biosysn." College of Agriculture, University of Arizona (Tucson, AZ), 2005. http://hdl.handle.net/10150/198160.

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A single field study was conducted during the 2004 cotton growing season at the University of Arizona Safford Agricultural Center to evaluate the effect of two plant growth regulators (PGRs) manufactured by LT Biosyn Inc. on the growth, development, yield, and fiber quality of cotton grown in the southeastern region of the state. This test was designed as a follow up study to work that was performed in 2003 on a grower cooperator site that demonstrated positive lint yield responses to the use of one of the PGRs used in this project. This was an eight treatment test involving the application of

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9

Fuentes, Hector D., of Western Sydney Hawkesbury University, of Science Technology and Environment College, and of Science Food and Horticulture School. "Studies in the use of plant growth regulators on phytoremediation." THESIS_CSTE_SFH_Fuentes_H.xml, 2001. http://handle.uws.edu.au:8081/1959.7/112.

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Phytoremediation is a relatively new technology that uses plants for the clean up of contaminated soils.Its low cost, simplicity and environmentally friendly approach make this technology a viable option for remediation but the main drawback is that it must be considered as long term alternative given its slow speed. This work is the first to report the use of Plant Growth Regulators(PGR)to enhance the performance of phytoremediation so that less time is needed for remediation.Soil samples were taken from a heavy metal contaminated, abandoned mine site for plant growth trials. A clean soil was

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10

Tickes, B., and M. J. Ottman. "Evaluation of Plant Growth Regulators on Wheat in Arizona, 1987." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/200841.

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Plant growth regulators are applied to small grains to decrease lodging which can adversely affect crop growth and yield. Wheat is intensively managed in Arizona, and lodging can be a problem. Chlormequat and ethephon were applied at various rates and times in six studies in 1987 to evaluate their use on Arizona's semi -dwarf cultivars with respect to lodging plant height, yield components and grain yield The results indicated that growth regulators applied at the recommended rates and times may decrease plant height and decrease kernel weight. However, the influence of growth regulator treatm

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11

Hay, Elizabeth Irene. "Somatic embryo development and phenotypic variation in an abscisic acid-independent line of Larix x eurolepis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0028/NQ32748.pdf.

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12

Attaha, Ali H. Mohamad. "Effects of some plant growth regulators on productivity of strawberries." Thesis, University of Manchester, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252892.

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13

Helps, I. M. "The synthesis of plant growth regulators via alkyne hexacarbonyldicobalt complexes." Thesis, University of Strathclyde, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381126.

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14

Sheridan, Norman P. "The interaction of plant growth regulators with cell membrane constituents." Thesis, Kingston University, 1986. http://eprints.kingston.ac.uk/20346/.

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The thesis describes the interaction of auxins with membrane fractions prepared from etiolated epicotyl tissue of ‘Pisum Sativum’ seedling. The interaction of auxins with phospholipids was also examined. Two classes of high affinity binding tissue sites were found in the growing region of the epicotyl tissue. Kinetic analysis of the data resulted in dissociation constant values of: K[sub]1=2.2x 10[sup]-7 M, n[sub]1=1.8x10[sup]-10 moles/g fresh wt; K[sub]2=11x10[sup]-7M, n[sub]2=3x10[sup]-10 moles/g fresh wt. These sites were not found in the non-growing region of the pea epicotyl suggesting th

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15

Magnitskiy, Stanislav V. "Controlling seedling height by treating seeds with plant growth regulators." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1101741472.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xix, 157 p.; also includes graphics. Includes bibliographical references (p. 147-157).

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16

Augustyn-Gradkowska, E. "Stereocontrolled synthesis of plant growth regulators, abscisic acid and xanthoxin." Thesis, London Metropolitan University, 1985. http://repository.londonmet.ac.uk/3314/.

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The project is concerned with the total synthesis of plant growth regulators related to abscisic acid (ABA). The biological activity of these plant growth regulators, ABA and Xanthoxin, and their derivatives is influenced by the stereochemistry of the double bond system in the side chain, the 2Z,4E-isomers being most potent.

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17

Zhang, Xunzhong. "Influence of Plant Growth Regulators on Turfgrass Growth, Antioxidant Status, and Drought Tolerance." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30739.

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A series of studies were conducted to examine the antioxidant status, drought and disease tolerance, and growth response to foliar application of soluble seaweed (Ascophyllum nodosum) extracts (SE) and humic acid (HA; 25% active HA or 2.9% active HA) in tall fescue (Festuca arundinacea Schreb), Kentucky bluegrass (Poa pratensis L.) and creeping bentgrass (Agrostis palusttis Huds.) grown under low (-0.5 MPa) and high (-0.03 MPa) soil moisture environments. Foliar application of humic acid (2.9 % active HA) at 23.7 and 47.4 l/ha improved leaf water status, shoot and root development in tall fes

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18

Deveson, M. R. "Effects of plant growth regulators on root growth and root/shoot integration in wheat (Triticum aestivum L.)." Thesis, University of Reading, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376235.

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19

McCoy, Mark Christopher. "The effects of phytohormones on growth and artemisinin production in hairy root cultures of artemisia annua l." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0529103-162012/.

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20

Guan, Ming. "Steroids in plant development : effects and possible role of brassinosteroids and estrogens." Thesis, University of Exeter, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328469.

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21

Bass, Peter R. "Purification of an enzyme involved in abscisic acid biosynthesis." Thesis, University of Nottingham, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385939.

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22

Castellaro, Simon John. "Aspects of the chemistry and biosynthesis of gibberellins." Thesis, University of Bristol, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329885.

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23

Feys, Bart Julienne Frans. "Towards positional cloning of COI1, an arabidopsis gene controlling the response to coronatine and methyl jasmonate." Thesis, University of East Anglia, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317974.

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24

Lombard, Petrus Johannes. "A biochemical study of budbreak and plant growth regulators in table grapes." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52617.

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Thesis (MSc)--Stellenbosch University, 2002.<br>ENGLISH ABSTRACT: The cultivation of table grapes in the warmer areas of South Africa, indeed worldwide, is complicated by rest breaking problems in spring due to delayed budbreak. In order to overcome these problems rest breaking agents, mainly hydrogen cyanamide, are applied. However, instead of alleviating the problem, additional problems such as uneven budbreak and reduced production are often induced. This study was initiated to further understand the physiological processes occurring during budbreak and how the application of hydrogen

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25

Tunio, Shamsuddin. "Effect on environment and plant growth regulators on the growth of different wheat genotypes." Thesis, Bangor University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293125.

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26

Alghamdi, Mohammed A. M. "Plant growth regulators effects on vegative growth, yield and yield components in winter wheat." Thesis, University of Reading, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.553077.

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Three glasshouse experiments and one field experiment were carried out to investigate the effect of the plant growth regulator on vegetative growth and yield components of reduced height isogenic lines of the wheat (Triticum aestivum L.) cultivar Mercia. The first experiment compared the growth regulator response of seven isogenic lines of Mercia. Subsequent experiments used four lines, (Mercia control, Rhtl Rht2, and Rht8). Two glasshouse experiments examined the responses under well watered and water stress conditions. The third glasshouse experiment examined rates and time of application un

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27

Dhansay, Mohamed Afzal. "Synthesis and metal binding properties of selected organophosphorus plant growth regulators." Thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/23201.

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28

Puglisi, Sadie Erica. "Use of Plant Growth Regulators to Increase Branching of Clematis Spp." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/35000.

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Clematis spp. L. is a twining vine covered in showy blooms. Typical growth of hybrids is from the main leader, producing a thin, unbranched plant with one cyme. Apical dominance is released by cutting back the vine during production. Cutting back, or pinching, of a plant is labor intensive and compromises bloom for vegetative growth at time of sales. The purpose of this project was to eliminate manual pinching by treating young plants with chemical plant growth regulators (PGRs) that enhance branching without removal of the apical meristem. The first project evaluated the use of Atrimmec

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29

Zhang, Yun-Heng. "Biochemistry and molecular biology of binding proteins for plant growth regulators." Thesis, De Montfort University, 2000. http://hdl.handle.net/2086/13254.

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Plant growth regulators have a vital role in plant growth and development. The cellular response to these regulators depends on the presence and the action of specific receptors. The plant growth regulators and their receptors act together in complexes which determine the final effects of the plant growth regulators. In the research reported here, emphasis has been given to the regulation of the activity of the receptors themselves. The regulation of the N-l-naphthylphthalamic acid (N~A) receptor through phosphorylation and dephosphorylation and the regulation of the auxin binding protein (ABP

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30

Welsh, Claire Jillian. "Promoting resilience in rain grown cotton systems with plant growth regulators." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/23910.

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Rain grown cotton production is typified by significant climate variability with water limitation a focal constraint. Ensuing system exposure to climate risk results in substantial variability in production area, lint yield, lint quality and profit outcomes. Climate risk management involves manipulating multiple agronomic management and genetic solutions simultaneously; moderating existing limitations to reach the system water-limited yield potential. Such strategies can introduce management diversity to the farming system, but lack application agility, have added implementation costs and syst

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31

Wright, Glenn C. "Use of Plant Growth Regulators for Improving Lemon Fruit Size - 2005." College of Agriculture, University of Arizona (Tucson, AZ), 2005. http://hdl.handle.net/10150/198104.

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Lemons were treated with several plant growth regulators for the 2005-06 season, with the hope of improving fruit size. These PGR’s included CropSet, Accel, Maxim, Messenger and MT350. Although there were some increases in yield, these were just trends, and were not statistically significant. Similarly, there was no improvement in fruit size with application of the treatment

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32

Bariola, Louis A. "Using Plant Growth Regulators to Control Pink Bollworms and Boll Weevils." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/219781.

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33

Wright, Glenn C. "Use of Plant Growth Regulators for Improving Lemon Fruit Size - 2006." College of Agriculture, University of Arizona (Tucson, AZ), 2007. http://hdl.handle.net/10150/223662.

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Lemons were treated with several plant growth regulators for the 2006-07 season, with the hope of improving fruit size. These PGR’s included Bluestim, Accel, Maxim and MT1350. Although there were some increases in yield, these were just trends, and were not statistically significant. Similarly, there was no improvement in fruit size with application of the treatments.

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Hood, L. R. "Multiple Plant Growth Regulator Use on Short Staple Cotton." College of Agriculture, University of Arizona (Tucson, AZ), 1993. http://hdl.handle.net/10150/209534.

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A field trial was initiated during the 1992 growing season to evaluate the activity of Cytokin and Piz applied alone or in combination to short staple cotton. The Cytokin treatment significantly increased lint yield over the other treatments. There were no statistically significant differences between the non-treated check and any other treatment. The Cytokin treatment increased lint yield an average of 81 pounds over the check plots. Fruit retention remained high throughout the season, indicating that Pix would not normally have been needed.

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Hood, L. R. "Multiple Plant Growth Regulator Use on Short Staple Cotton." College of Agriculture, University of Arizona (Tucson, AZ), 1995. http://hdl.handle.net/10150/210271.

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A field trial was conducted during the 1992 & 1993 growing seasons to evaluate the activity of Cytokin and Pic applied alone or in combination to short staple cotton. The Cytokin treatment significantly increased tint yield over the other treatments in 1992. There were no statistically significant seed cotton differences between the non - treated check and any treatment in 1993. Fruit retention remained high throughout 1992 and very high throughout the 1993 season. Under high fruiting conditions, use of a plant growth regulator would not normally be recommended.

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36

Grossman, Mara Celeste. "Controlling Growth in Echinacea Hybrids." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/77578.

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New hybrid Echinacea cultivars, based on crosses of Echinacea purpurea (L.) Moench with several other Echinacea species, have generated interest and excitement in the marketplace due to novel flower colors and forms. However, these cultivars vary significantly in their growth habits and requirements from the species. We examined factors in the production of Echinacea hybrid cultivars to provide guidance to growers. Foliar sprays 600 mg·L⁻¹ benzyladenine (BA) increased numbers of branches between 19% and 83% in Echinacea cultivars while 400 mg·L⁻¹ dikegulac sodium or 500 mg·L⁻¹ ethephon did not

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37

Snelson, Jonathan Bundy. "Plant Growth and Root Zone Management of Greenhouse Grown Succulents." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/32398.

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Effects of media, soil moisture, fertility rate, and plant growth regulators on plant growth were investigated for 13 taxa of succulents. Media: Liners were grown in five common greenhouse substrates: 80% peat, 60% bark + 30% peat moss, 80% pine bark/20% Permatil (v/v), 100% composted pine bark, or whole tree substrate until market ready. Overall, higher percentage bark mixes yielded smaller plants, with lower shoot dry weights, shoot heights and widths. Soil Moisture: Liners were potted into a 60% bark/30% peat soilless potting mix. In group 1 , irrigation to container capacity occurred

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38

Abdul-Razak, Mubarak Ali. "INFLUENCE OF GROWTH REGULATORS AND FERTILIZERS ON COTTON YIELD AND PLANT BEHAVIOR." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/184196.

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The effect of the plant regulator Mepiquat chloride (PIXᵀᴹ) (1,1-dimethyl-piperidinium chloride), in the early flowering stage, and combinations with soil and foliar application of fertilizers was investigated through seven field experiments conducted in 1982 and 1983 at three University of Arizona experimental locations. Three upland cotton cultivars (Gossypium hirsutum L.), 'Deltapine 55', '61' and '62' were used. Cotton yield, boll properties, fiber properties, leaf chlorophyll content, plant height, plant partitioning and maturity were investigated. Petiole nitrate, leaf area index (LAI) a

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39

Norton, E. R. "Scheduling Techniques for the Use of Pentia Plant Growth Regulator." College of Agriculture, University of Arizona (Tucson, AZ), 2005. http://hdl.handle.net/10150/198162.

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A single field study was conducted at the University of Arizona Safford Agricultural Center during the 2004 season to evaluate the utilization of a feedback technique that is based upon plant growth and development to schedule applications of the new plant growth regulator (PGR) from BASF, Pentia. A simple three treatment study was constructed consisting of a control treatment (no Pentia application), a scheduled treatment (application of 16 oz/acre at first bloom regardless of plant growth), and a feedback treatment (applications based upon plant growth and development). Application decisions

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40

Eksteen, Lambertus Lochner. "Reducing height and lodging in canola (Brassica napus L.) using plant growth regulators." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95845.

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Thesis (MScAgric)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: In South Africa, canola (Brassica napus L.) is produced under short day conditions during winter months. These conditions, together with high fertiliser application levels required to maximize grain yields, often result in tall growing bulky crops which are prone to lodging. This will especially be true if canola production is expanded to irrigated areas. Plant growth regulators (PGRs) have successfully been used to reduce canola plant height and lodging under experimental conditions in Australia and are worldwide commercia

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Zhou, Dongfang. "Using Plant Growth Regulators to Improve the Quality of Containerized Herbaceous Peony." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/98808.

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Herbaceous peonies (Paeonia lactiflora Pall.) are common perennials used both in gardens and the landscape as well as for cut flowers. Peonies require a chilling period to break dormancy but not for flower bud differentiation. For all studies discussed in this dissertation, two peony cultivars, Sarah Bernhardt and Inspecteur Lavergne, small (3–5 eye) crowns from Holland were potted in 3.8-L pots in mid-November of 2017 and 2018. Our overall objective was to determine if we could manipulate chilling time, along with application of gibberellic acid (GA3) and growth retardants, to produce marketa

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42

McCarthy, Timothy James. "Studies towards the total synthesis of (+)-ovalifoliene and other plant growth regulators." Thesis, University of Liverpool, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314551.

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Grossman, Mara Celeste. "Use of Plant Growth Regulators to Improve Branching of Herbaceous Perennial Liners." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/32830.

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The objective of this study is to evaluate the efficacy of PGRs to improve branching during production of herbaceous perennial liners and finished plants. The effects of benzyladenine (BA) on the branching and root and shoot growth of Agastache Clayt. Ex Gronov. 'Purple Hazeâ , Gaura lindheimeri Engelm. & A. Gray 'Siskiyou Pink', Lavandula Ã intermedia Emeric ex Loisel. 'Provence', Leucanthemum Ã superbum (Bergmans ex J.W. Ingram) Bergmans ex Kent. 'Snowcap', and Salvia Ã sylvestris L. (pro sp.) 'May Night' was tested. Root dry weight was found to be highly correlated to root volume and root

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Ibrahim, Mohammed. "Physiological and metabolic responses of two rose varieties to plant growth regulators." Thesis, Ibrahim, Mohammed (2018) Physiological and metabolic responses of two rose varieties to plant growth regulators. PhD thesis, Murdoch University, 2018. https://researchrepository.murdoch.edu.au/id/eprint/45991/.

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Rose (Rosa hybrida) is one of the most popular cut flowers with a worldwide production of more than 300 million stems per year. The perfume industry, which relies on a range of scented rose varieties, is also an important industrial application for roses. Among the numerous types of roses are some recent varieties including Hybrid Tea and Floribunda roses. The major problem in Australia is accelerated pre- and post-harvest flower drop and senescence, caused by deficiencies in endogenous plant growth regulators (PGRs). PGRs play important roles in the growth and development of flowers, especial

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Rethwisch, Michael D., Michael D. Kruse, and Justin Parker. "Effects of Aerially Applied Plant Growth Regulators on Alfalfa Quality and Yields." College of Agriculture, University of Arizona (Tucson, AZ), 1996. http://hdl.handle.net/10150/202434.

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Plant growth regulators were aerially applied on April 26, 1996, to two alfalfa fields, one (Cibola) in its first year of production and the other field (CUF 101) in its third year. The first year field was approximately 50% through the cutting cycle and the third year field was approximately 30% through the cutting cycle when applications were made. No statistical differences were noted in hay tonnage the first cutting after application. Yield increases due to treatments were noted in the second cutting and maximum increases ranged from 277 -461 lbs of hay per acre. No yield or quality differ

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Rethwisch, Michael D., Greg Hurtado, and Rosario Hurtado. "Comparison of Various Plant Growth Regulators on Pima S-7 Cotton Yields." College of Agriculture, University of Arizona (Tucson, AZ), 1996. http://hdl.handle.net/10150/210772.

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All plant growth regulators and nutritional products applied to Pima S-7 cotton during bloom economically increased lint yields, with increases ranging from 80 - 261 lbs. /acre. Greatest increase was noted with Boll-Set Plus, a product that contains raised levels of calcium and zinc. Cytokin and Boll -Set Plus significantly increased yields at one location. A lint yield increase of approximately 40 lbs/acre was noted when Tech-Flo Alpha was added to Cytokin. A single application of Foliar Triggrr resulted in equal yields as two applications of the Cytokin plus Tech-Flo Alpha.

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Clark, L. J., and E. W. Carpenter. "Plant Growth Regulator Studies at the Safford Agricultural Center, 1993." College of Agriculture, University of Arizona (Tucson, AZ), 1994. http://hdl.handle.net/10150/209604.

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48

Clark, L. J., and E. W. Carpenter. "Plant Growth Regulator Studies at the Safford Agricultural Center, 1994." College of Agriculture, University of Arizona (Tucson, AZ), 1995. http://hdl.handle.net/10150/210270.

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Methanol, Cytokin and PGR IV plant growth regulators were tested on long and short staple cotton on the Safford Agricultural Center in 1994. It was a follow up study on Methanol and Cytokin and a first time look at PGR IV.

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49

Norton, E. R., and H. J. Borrego. "Evaluation of Plant Growth Regulator Formulations in Arizona Cotton Production Systems." College of Agriculture, University of Arizona (Tucson, AZ), 2006. http://hdl.handle.net/10150/198211.

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A single experiment was conducted in 2005 at the University of Arizona Safford Agricultural Center in an effort to continue to evaluate several different formulations of the plant growth regulator (PGR) mepiquat chloride. Plots were established with the cultivar Deltapine DP 655BR on 19 April 2005. Four treatments were imposed on 18 July 2005 of 16 oz./acre applications of Mepex, Pix Ultra, and Pentia, plus a control plot. Plots were four 36” rows wide and extended the length of the irrigation run of 220 feet. Plots were arranged in a randomized complete block design with four replications. Pl

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Leitao, Daniela. "Effects of commercial kelp extract and plant growth regulators on growth of Gracilaria gracilis in culture." Master's thesis, University of Cape Town, 2005. http://hdl.handle.net/11427/6707.

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Abstract:

The addition of a local commercial seaweed extract (Kelpak®) to crop plants has proven to be beneficial as it improves growth and yields. Its efficiency has been attributed to its production method that involves a cold process, resulting in a product containing significant amounts of plant growth regulators (auxins and cytokinins). The aim of this study was therefore to investigate the effects of this commercial seaweed concentrate (Kelpak®) on the growth of Gracilaria gracilis (Stackhouse) Steentoft, Irvine et Farnham, with a view to the potential in mariculture, especially as this red seawee

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