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Teses / dissertações sobre o tema "Root"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 25 de julho de 2025

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1

Olsen, Mary. "Cotton (Texas) Root Rot." College of Agriculture, University of Arizona (Tucson, AZ), 2015. http://hdl.handle.net/10150/346609.

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Revised 02/2015; Originally published: 2000.<br>The most important disease of woody dicotyledonous plants in Arizona is Phymatotrichopsis root rot (Cotton or Texas root rot) caused by a unique and widely distributed soil-borne fungus, Phymatotrichopsis omnivora. The fungus is indigenous to the alkaline, low-organic matter soils of the southwestern United States and central and northern Mexico.

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2

Olsen, Mary W. "Cotton (Texas) Root Rot." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2009. http://hdl.handle.net/10150/144800.

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4 pp.<br>Cotton root rot commonly causes a sudden wilt and death of susceptible plants in summer months but may also cause a slow decline, especially at cooler temperatures. So, positive identification of disease by an experienced person is essential. This publication addresses the symptoms, environmental conditions, disease, prevention and control methods, sampling, identifying susceptible plants and the tolerant and immune plants of cotton root rot.

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3

Chambers, Susan M. "Phytophthora root rot of chestnut /." Title page, contents and abstract only, 1993. http://web4.library.adelaide.edu.au/theses/09PH/09phc4449.pdf.

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4

West, Jon. "Chemical control of Armillaria root rot." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386565.

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5

Kilby, Michael W. "Phymatotrichum (Cotton Root Rot) Resistant Grape Rootstocks." College of Agriculture, University of Arizona (Tucson, AZ), 1990. http://hdl.handle.net/10150/215735.

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6

Mahato, Tilak, Mary Olsen, and Ursula K. Schuch. "Controlling Rhizoctonia Root Rot in Bedding Plants." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2004. http://hdl.handle.net/10150/216551.

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Rhizoctonia root rot is caused by a soil borne fungus, Rhizoctonia solani and is a serious problem in bedding plants. The objective of this study was to determine the efficacy of three chemical and two biological products for controlling Rhizoctonia root rot in cool season and warm season bedding plants. Experiments were conducted with summer and winter bedding plants in a nursery production and landscape situation. The efficacy of conventional fungicides or biological products to control Rhizoctonia root rot in bedding plant production and simulated landscape growth cannot be evaluated from r

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7

Tyler, Ray, Edith DeRosa, Lee J. Clark, and Mary Olsen. "Seed Treatment to Prevent Black Root Rot." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/219773.

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The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers.<br>NU-Zone (imazalil) + Nu-Flow ND (TCMTB + Chloroneb), NU-Flow ND, and Vitavax (carboxin) were evaluated as seed treatments with and without in-furrow PCNB. The following was learned: - Vitavax-treated seed got out of the ground faster than the other treatments, which brings out the possibility that NU-Flow or NU-Zone slows germination. - Stands and root development were slightly better when NUZone was present. - NU-Zone + NU-Flow ND seed treatment is not totally effective in controlling black root rot in heavily

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8

Erb, Ronald T. "The effect of roots on the shearing strength of soil." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1119364987.

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9

Persson, Lars. "Soil suppressiveness to Aphanomyces root rot of pea /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1998. http://epsilon.slu.se/avh/1998/91-576-5472-7.gif.

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10

Xia-Hong, He. "Bio-control of root rot disease in vanilla." Thesis, University of Wolverhampton, 2007. http://hdl.handle.net/2436/15398.

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Fusarium oxysporum Schl. var. vanillae (Tucker) Gondon is known to cause root rot in Vanilla planifolia Andrews in most regions where it is grown, including the major plantations in Xishuangbanna, Yunnan Province of China. This is of serious economic concern to the Province since the vanilla flavouring extractable from the beans of the plant is a valuable food product and an important export commodity. There are no fungicides registered for the control of Fusarium root rot and the only available chemical control methods are ineffective and cause serious contamination of the soil. Breeding for

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11

Lan, Chinchun. "Analysis of soil-root interaction." Connect to resource, 1985. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1119365654.

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12

Spataro, Ilaria. "Generalized root systems." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Il mio elaborato definisce i sistemi di radici generalizzati mostrandone le proprietà più rilevanti ai fini della classificazione di quelli di rango 2. Inoltre, ci si sofferma sul fatto che quozienti di sistemi di radici generalizzati sono ancora sistemi di radici generalizzati e si dimostra che tutti i sistemi di radici generalizzati di rango 2 sono combinatoriamente equivalenti a quozienti dei sistemi di radici classici.

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13

Carman-Goeke, Macy Anne. "Taking Root." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/91405.

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This thesis seeks to investigate how architecture can utilize different techniques to introduce people to landscape, specifically those who have an uncomfortable relationship with nature due to inequities in access to quality green space, a cultural distancing from nature due to historical acts of violence, or an increasingly urban and work focused lifestyle. A proposed Visitor Center in Rock Creek Park, in Washington, DC, acts as a slow transition from park to city and back again, breaking the landscape into more digestible pieces before putting it back together as a whole. The building's str

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14

Sivananthan, Malini. "An examination of the relationship between NO, ABA and auxin in lateral root initiation and root elongation in tomato." Thesis, University of Canterbury. Biological Sciences, 2006. http://hdl.handle.net/10092/1375.

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The length of the primary root and the density of lateral roots determine the architecture of the root. In this thesis the effect of NAA, ABA and the NO donor SNP alone as well as the combination of ABA or NAA with SNP on lateral root development was investigated. The interaction between CPTIO, a NO scavenger, and NAA or SNP is also reported. Following preliminary experiments in which it was observed that the aerial part of the seedling influenced LR growth and that there was a possible inhibitory effect of light on cultured root tips, experiments were conducted with excised roots tips in t

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15

Omar, Ibrahim. "Biological control of crown and root rot of tomato." Thesis, University of Nottingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310952.

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16

Beligala, Gayathri. "Screening for Resistance to Phytophthora Root Rot in Lupin." Bowling Green State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1467244910.

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17

Hine, Dick, Roy Whitson, Jim Armstrong, Don Howell, and Ron Cluff. "Fungicide Evaluations for the Control of Phymatotrichum Root Rot." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/204052.

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18

Das, Jyotsna. "Serological detection of sphaerostible repens B. and Br. causing violet root rot disease of tea and its management." Thesis, University of North Bengal, 2002. http://hdl.handle.net/123456789/915.

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19

Downie, Helen. "Application in imaging root trajectories and root-bacteria interactions." Thesis, Abertay University, 2013. https://rke.abertay.ac.uk/en/studentTheses/bc3a83e5-d6fa-45d8-913b-a97e664ae81a.

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Biological processes that occur in the soil have important environmental implications. These processes include root growth and microbial interactions with roots and soil particles and they influence the efficiency of crop production and, in turn, global food security. The observation and imaging of these below-ground processes is difficult due to the opacity of soil and so this thesis presents a new artificial soil analogue that is transparent and therefore allows optical imaging. Transparent soil is a 3D matrix of chemically treated particles of the low refractive index fluoropolymer Nafion,

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20

Lee, Jang Hoon. "Effect of fruit removal on carbohydrate concentrations of cantaloupe (Cucumis melo L.) roots in naturally infested soil with Monosporascus cannonballus." Texas A&M University, 2003. http://hdl.handle.net/1969.1/259.

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The effect of fruit removal from cantaloupe was studied under field conditions in a soil naturally infested with Monosporascus cannonballus. Fruit removal resulted in greater sugar accumulation in the cantaloupe roots compared to the roots from plants on which the fruits were allowed to develop normally. Individual, total, and combined root carbohydrate levels were greater in plants without fruit than in plants with fruit. Five major sugars (stachyose, raffinose, sucrose, glucose, and fructose) were found in the cantaloupe roots. Stachyose concentrations were higher than all the other sugars i

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21

Stevens, Glen N. "Trophic dynamics in the fine-root based food web: integrating resource heterogeneity, root herbivores, and root foraging." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/28168.

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Resources in the soil are heterogeneously distributed. We know that plant species differ in their root responses to nutrient patches and that these differences in foraging can influence plant competition. However, most studies of root-resource interactions overlook the potential top-down influence of root herbivores. While root herbivores can influence plant community structure, the extent to which they influence ecosystem-scale factors such as net primary production is unclear. In addition, little is known regarding root herbivore foraging behaviors and, more importantly, whether these fo

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22

Meyer, Jack Robert. "Cultivar susceptibility and fungicide control of black dot root rot." Thesis, Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/meyer/MeyerJ0507.pdf.

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23

Linde, Alec Robert 1956. "Root rot of hydroponically grown lettuce caused by Phytophthora cryptogea." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277895.

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In April 1989, lettuce (Lactuca sativa L.) plants showing severe root rot symptoms were received for diagnosis from a commercial hydroponic facility in Southern California. A species of Phytophthora was consistently isolated from necrotic roots. Pathogenicity trials were conducted under hydroponic conditions in a greenhouse at root temperatures of 18 and 28 C. Root necrosis, along with stem decay and plant death, occurred within 5-7 days after inoculation at both temperatures. Reisolation of the fungus from roots and stems of inoculated, but not from roots of non-inoculated plants, confirmed p

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24

Chittem, Kishore. "Genomics and Management of Fusarium Root Rot of Field Peas." Diss., North Dakota State University, 2012. https://hdl.handle.net/10365/26475.

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Dry Pea or field pea (Pisum sativum L.) is an important cool season legume crop grown in the United States. Field peas are vulnerable to many diseases of which, soil borne diseases including wilt and root rot are of major economic importance and can cause significant reduction in yield. There is a dearth of satisfactory methods for control of root rot and no varieties with complete resistance to Fusarium root rot are currently available. Root rot disease was found to be prevalent in all the major pea growing counties of North Dakota surveyed in 2004, 2005, 2010 and 2011. Fusarium species were

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25

Samils, Nicklas. "Monitoring the control methods of Heterobasidion annosum s.l. root rot /." Uppsala : Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences, 2008. http://epsilon.slu.se/200847.pdf.

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26

Young, Deborah, and Michael Matheron. "Control of Phytophthrowa Root and Crown Rot of Apple Trees." College of Agriculture, University of Arizona (Tucson, AZ), 1990. http://hdl.handle.net/10150/215717.

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27

Matheron, Michael, Deborah Young, and Joe Matejka. "Root and Crown Rot of Apple Trees Caused by Phytophthora." College of Agriculture, University of Arizona (Tucson, AZ), 1990. http://hdl.handle.net/10150/215738.

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28

Dhillon, Sameet. "The Delicate Root." Thesis, Boston College, 2015. http://hdl.handle.net/2345/bc-ir:104023.

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Thesis advisor: Sue Roberts<br>A collection of stories that explore the lives of men and women struggling with love, friendship, growing up and facing the world; all through the lens of Indian culture. Some of these characters are recent immigrants, some have lived in America for years. Regardless, they struggle with issues that are both connected to and separate from their status as Indian Americans. Here we have missed connections and realities. A desire to know as well as a desire to remain in the dark<br>Thesis (BA) — Boston College, 2015<br>Submitted to: Boston College. College of Arts an

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29

Zamboni, Giulio. "Fan root aerodynamics." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611841.

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30

Ingram, Amanda. "Root: early memoirs." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555430230053347.

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31

Mazzon, Andrea. "Processo Square Root." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3834/.

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32

Olsen, Mary W. "Root-knot nematode." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011. http://hdl.handle.net/10150/146969.

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3 pp.<br>Originally published: 2000<br>Nematodes are microscopic round worms found in many habitats. They are the most abundant multicellular organisms on earth. Most are beneficial memebers of their ecosystems, but a few are economic parasites of plants and animals. There are several plant parasitic nematodes that cause problems on landscape and garden plants in Arizona and the most widespread and economically important are the root-knot nematodes. This article discusses the hosts and environmental conditions, symptoms and disease of root-knot nematode, and the prevention / control method to

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33

Blume-Werry, Gesche. "The hidden life of plants : fine root dynamics in northern ecosystems." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-124757.

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Fine roots constitute a large part of the primary production in northern (arctic and boreal) ecosystems, and are key players in ecosystem fluxes of water, nutrients and carbon. Data on root dynamics are generally rare, especially so in northern ecosystems. However, those ecosystems undergo the most rapid climatic changes on the planet and a profound understanding of form, function and dynamics of roots in such ecosystems is essential. This thesis aimed to advance our knowledge about fine root dynamics in northern ecosystems, with a focus on fine root phenology in natural plant communities and

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34

Mayer, Sebastian. "Hilbert modular forms for the fields Q([square root]5), Q([square root]13) and Q([square root]17)." [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=985767022.

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35

Chowdhury, Prabir Roy. "Exploitation of Rhizosphere microorganisms of tea for protection against root rot pathogens." Thesis, University of North Bengal, 2008. http://hdl.handle.net/123456789/1063.

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36

佑脩, 田和, and Yusuke Tawa. "Dynamics and architecture of fine root system in a Cryptomeria japonica plantation." Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13106238/?lang=0, 2019. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13106238/?lang=0.

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37

Ihrmark, Katarina. "Double-stranded RNA elements in the root rot fungus Heterobasidion annosum /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2001. http://epsilon.slu.se/avh/2001/91-576-6310-6.pdf.

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38

Popoola, Temi-Tope Olukayode. "The role of host plant stress in Armillaria root rot infections." Thesis, University of Reading, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304388.

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39

Collins, A. J. "'The role of willow root architecture and character in root reinforcement potential'." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246876.

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40

Morandage, Shehan [Verfasser]. "Characterization of Root System Architectures from Field Root Sampling Methods / Shehan Morandage." Bonn : Universitäts- und Landesbibliothek Bonn, 2020. http://d-nb.info/1221668927/34.

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41

Upton, Caroline. "Factors controlling root growth in heterogeneous substrates : physical structures and root behaviour." Thesis, Abertay University, 2016. https://rke.abertay.ac.uk/en/studentTheses/f556f1fc-0529-4555-b985-320f853780c6.

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Roots are essential for nutrient uptake and anchorage for the plant, however there is published evidence to suggest that the physical structure of soil has a strong influence on their abilities to grow and develop healthily. Observing roots in 3-dimensions, in situ and non-destructively is important for understanding the complex nature of the physical root/soil relationship, however roots are notoriously difficult to observe due to the opaque nature of soil. This problem can be partially negated by using techniques such as X-ray micro-computed tomography, but is an expensive and time-consuming

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42

Eskiyerli, Mirat Hayri. "Square root domain filters." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299973.

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43

Schofield, April. "Blood At The Root." TopSCHOLAR®, 2015. http://digitalcommons.wku.edu/theses/1450.

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This is a coming of age story about two very different boys – Jason, a Northerner who ends up stuck in a small Southern town and Billy, a Southern boy with an abusive father. The boys become friends and grow up learning the dark secrets that are allowed to fester in a tiny southern town ruled by the Good Ol’ Boy System of justice. The story chronicles how their shared experiences change them in ways they never imagined and ultimately destroys their friendship and their lives. Through a history of violence and prejudice, Billy and Jason learn who they really are and just how far they’re willing

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44

Birdsall, Margaret. "Root development in allium." Thesis, University of Newcastle Upon Tyne, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328252.

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45

Hopkins, Samuel F. "Root system chip-firing." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/117780.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mathematics, 2018.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 195-200).<br>This thesis investigates an extension of the classical chip-firing process to "other Cartan-Killing types." In Chapter 1 we review the classical chip-firing game: the states of this process are configurations of chips on the vertices of a graph

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46

Koerfer, Filip. "Classification of Root Systems." Thesis, Uppsala universitet, Algebra och geometri, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-355873.

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47

Reffruschinni, Katie, David Robinson, and Albert Dobrenz. "Seedling Alfalfa Root Research." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/203792.

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There has been limited research on the rooting patterns of alfalfa. This information would be important in developing new germplasm sources that are more water efficient, salt tolerant and drought tolerant. Ten alfalfa varieties were evaluated for possible genetic control of rooting traits. Seedlings were grown hydroponically in a growth chamber. The cultivars evaluated showed a significant statistical difference for width of lateral root system and number of lateral roots. The variation in seedling rooting patterns is sufficient to warrant a selection program for improved lateral rooting patt

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48

Brigham, Lindy Andersen 1951. "Root border cell differentiation." Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/290689.

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The inability of a plant to run from danger or seek nutrients necessitates its capacity to change the environment of the surrounding soil for protection and sustenance. A unique plant process, the release of thousands of autonomous cells from the root cap, called root border cells, may play a role in the ability of the plant to regulate microbial populations and nutrient availability in the rhizosphere. In this study, evidence is presented showing that root border cells are a differentiated tissue, that the production of border cells is highly regulated and tied to cell turnover in the root ca

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49

Smith, Lisa C. "The root in winter." Thesis, University of St Andrews, 1994. http://hdl.handle.net/10023/14359.

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Factors affecting the survival of over-wintering tree roots during waterlogging were investigated. Die-back of roots covered by high Winter water tables results in shallow rooted trees susceptible to wind-throw. Such is the scale of the problem in Britain, this research is considered to be of practical relevance. Sitka spruce (Picea sitchensis (Bong.) Carr.) and Lodgepole pine (Pinus contorta Douglas ex Loudon) were chosen, being the most predominant species planted and showing differing susceptibility to flooding. Sitka spruce is considered flood-intolerant (Crawford 1982) and Lodgepole pine

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50

Ottman, Mike. "Nondormant Alfalfa Varieties for Arizona 2017." College of Agriculture, University of Arizona (Tucson, AZ), 2017. http://hdl.handle.net/10150/625864.

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2 p.<br>Alfalfa varieties differ in fall dormancy, defined as growth during the fall. Nondormant alfalfa varieties are usually planted in mild winter areas for their ability to grow in the fall. However, fall growth of nondormant alfalfa may be undesirable in areas subject to repeated frosts or freezes. Nondormant, very nondormant, and extremely nondormant alfalfa varieties (fall dormancy class 8, 9, and 10) are adapted to elevations below 4000 feet in Arizona. Other dormancy classes not included in this publication are moderately nondormant varieties (fall dormancy class 7) which may be grown

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