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Дисертації з теми "Alfalfa plant"

Автор: Grafiati

Опубліковано: 10 березня 2023

Оновлено: 25 липня 2025

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1

Madhusudhan, Vaadiyar V. "Interaction of the spotted alfalfa aphid and its food plant." Title page, contents and summary only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phm1812.pdf.

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2

Wissuwa, Matthias 1964. "Improvement of tolerance to summer irrigation termination in alfalfa." Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/282135.

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Withholding irrigation to alfalfa (Medicago sativa L.) during summer, a management strategy referred to as summer irrigation termination (SIT), has been suggested as a way to conserve water in desert environments. SIT may decrease productivity of alfalfa stands, although such negative effects may be reduced if cultivars with improved tolerance to SIT could be developed. This research was undertaken to determine how improved tolerance to SIT could be achieved through plant breeding. Single spaced plants of an extremely nondormant alfalfa population were grown in a field trial in Tucson, AZ and

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3

Venter, Annari. "Comparing plant yield and composition with soil properties using classical and geostatistical techniques." Diss., University of Pretoria, 2003. http://hdl.handle.net/2263/23916.

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Plant nutrient management plays a vital role in the success or failure of modern Lucerne production. In South Africa, Lucerne is produced under a wide range of climatic conditions, under dryland and irrigation and in some areas throughout the year. This means that there is a continuous demand for nutrients under a wide range of environmental conditions. The most important factors affecting the nutrient requirement of Lucerne is yield, the cutting schedule, climate and management practices. To enable site-specific crop requirements, the spatial variation of soil and plant properties within a fi

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4

Jeffries, Alex Craig. "The study at the molecular level of the New Zealand isolate of Lucerne transient streak sobemovirus and its satellite RNA." Title page, contents and summary only, 1993. http://web4.library.adelaide.edu.au/theses/09PH/09phj47.pdf.

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5

Dolling, P. J. "Lucerne (Medicago sativa) productivity and its effect on the water balance in southern Western Australia /." Connect to this title, 2006. http://theses.library.uwa.edu.au/adt-WU2006.0108.

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6

Stadler, H. Scott. "Response of alfalfa to foliar applications of long-chain fatty acids or seed treatments with Chevron XE-1019." Thesis, This resource online, 1987. http://scholar.lib.vt.edu/theses/available/etd-04272010-020308/.

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7

Frank, Scott 1971. "Phosphoenolpyruvate carboxylase and cold acclimation of alfalfa." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27318.

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Phosphoenolpyruvate carboxylase (PEPC) was examined during cold acclimation of seedlings of the freezing-tolerant cultivar (Medicago sativa ssp falcata cv Anik) and the relatively freezing-sensitive cultivar (Medicago sativa cv Trek) of alfalfa. With four days of cold acclimation, PEPC activity increased to 3.5-fold and 2-fold the control levels in Anik and Trek, respectively. This was associated with an increase in the level of a 110 kD PEPC protein and a decrease in the amount of a 120 kD PEPC polypeptide in both cultivars. The role of reversible phosphorylation in regulating PEPC activity w

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8

Wolfraim, Lawrence A. (Lawrence Allen). "Cloning, characterization and regulation of expression of a cold-acclimation-specific gene, cas18, in a freezing tolerant cultivar of alfalfa." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39485.

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Cold-acclimation-specific (CAS) gene expression was examined by screening a cDNA library prepared from poly(A)$ sp+$ RNA of cold-acclimated seedlings of a freezing-tolerant variety of alfalfa (Medicago falcata cv Anik). Three distinct CAS cDNA clones, pSM784, pSM2201, and pSM2358 were isolated. The genes corresponding to all three clones are coordinately induced by cold. Expression of these genes is not triggered by other stress treatments such as heat shock, water stress, wounding, or treatment with exogenous ABA. A positive correlation was observed between the level of expression of each gen

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9

Rethwisch, Michael D., Rigo Perez, Bradley J. Griffin, A. Bradley, and Mark Reay. "Alfalfa yield and quality responses to applications of three types of plant growth regulators." College of Agriculture, University of Arizona (Tucson, AZ), 2003. http://hdl.handle.net/10150/205397.

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Three plant growth regulators (two for growth enhancement, one for growth inhibition) were applied to several consecutive cuttings of alfalfa during the period of May-August in the Blythe, CA, area. All treatments resulted in reduced tonnage compared to the untreated check, although application of prohexadione calcium (active ingredient in the growth inhibition plant growth regulator) did result in increase in alfalfa quality when applied in May. Subsequent applications during the summer of this material did not result in a quality class increase for alfalfa hay production. Treatments of growt

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10

Morita, Tateo 1958. "Effect of inbreeding on germination salt tolerance in alfalfa." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276644.

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The performance of an alfalfa (Medicago sativa L.) population has been improved by recurrent selection for germination salt tolerance. However, recurrent selection may lead to increased inbreeding. Since alfalfa is subject to severe inbreeding depression, accumulation of inbreeding during the selection process may negatively affect performance. This experiment was designed to determine the effects of inbreeding on germination performance in alfalfa under saline and non-saline conditions. The germination performance of seed having three different levels of inbreeding as examined. No adverse eff

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11

Zheng, Liansheng 1955. "Gene expression in two different genotypes of alfalfa under salt stressed and unstressed conditions." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276936.

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Анотація:

Gene expression in two different genotypes of alfalfa, salt-tolerant and salt-sensitive, was examined by studying differences in protein products coded for by poly(A+) RNA isolated from shoot and root tissue. Plants were grown in hydroponics under unstressed or salt-stressed conditions. Two salinity levels (low salt: 30 mM NaCl and 6 mM CaCl2 and high salt: 133 mM NaCl and 27 mM CaCl2) and one unstressed control were applied. The salt-tolerant genotype showed higher biomass accumulation than the salt-sensitive genotype under both control and salt-stressed conditions. The difference in biomass

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12

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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13

Sabah, Husni N. "Membrane Protein as a Basis of NACL Tolerance in Alfalfa." DigitalCommons@USU, 1995. https://digitalcommons.usu.edu/etd/3414.

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This study sought to determine whether NaCl altered the plasma membrane proteins in alfalfa exhibiting differential NaCl concentrations, and whether caso4 modified the responses. Two alfalfa cultivars, Centurion and Condor, were grown in 0.5 strength Hoagland solution in a greenhouse. The cultivars were exposed to 0, 88, and 132 mM of NaCl alone and mixed with caso4 .H20 at 7 and 14 Mm caso4 for 3, 9, and 60 days. In experiment 1, roots were dried to determine their Na, Ca, K, and Mg concentration. The results were similar to previous reports in which CaS04 alleviated the salt stress by increa

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14

Arthur, Fareed Kow Nanse. "Defense responses to fungal challenge in alfalfa (medicago sativa L.) plants and tissue cultures." Thesis, University of Nottingham, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385239.

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15

Diedrick, Keith A. "Reduced insecticide rates and host plant resistance for managing Potato Leafhopper in Alfalfa." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1413291380.

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16

Chaulk, Christine Annie 1964. "Chromosome number, fertility, and mitochondrial genome of backcross populations derived from Medicago sativa x Medicago dzhawakhetica hybrids." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277157.

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Backcross populations (BC) from Medicago sativa L. x M. dzhawakhetica Bordz. hybrids were analyzed for chromosome number, fertility and morphological characteristics. Previously obtained F1 hybrids were recovered when diploid (2n = 2x = 16) M. sativa was crossed with tetraploid (2n = 4x = 32) M. dzhawakhetica. Resulting F1 hybrids were triploid (2n = 3x = 24), completely male sterile and had low levels of female fertility. Subsequent populations were obtained by successive backcrossing to unrelated (4x) M. sativa clones. The BC1 plants were pentaploid (2n = 5x = 40) and both male and female fe

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17

Kawczyński, Wojciech. "Effects of low temperature on nuclear proteins of alfalfa." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23278.

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During the present studies we attempted to answer the following questions: (i) Does low temperature alter the phosphorylation level of proteins in isolated nuclei? (ii) Does the nuclear phosphoprotein population change during a prolonged exposure of seedlings to cold? (iii) Do heat-stable proteins accumulate in the nucleus during a prolonged exposure of seedlings to cold? (iv) Are the answers to the above three questions related to freezing tolerance? A possible relationship between the observed cold-induced changes in phosphoproteins and the level of freezing tolerance was explored by compari

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18

Dhumal, Suresh S. "Potassium and Sodium Interrelations in Alfalfa Phenotypes Grown on Calcareous Soil." DigitalCommons@USU, 1991. https://digitalcommons.usu.edu/etd/3451.

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Three greenhouse experiments were conducted with three phenotypes of alfalfa (Medicago sativa L.) obtained from a potassium (K)-deficient field and with their diallel crosses grown on low K soil. The first experiment was conduc ted to study the partitioning and broad-sense heritability of K a nd sodium (Na) between leaves and stems of the three phenotypes which were deficient in K and exhibited normal (N), marginal chlorotic (M), and white spot chlorotic (W) leaflets. The second experiment was conducted to study the partitioning of K and Na in leaves, stems, and roots as influenced by 32 alfal

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19

Hocker, Anna Margaret 1960. "Development of procedures towards the somatic hybridization of alfalfa and Medicago marina L." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/278034.

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Protoplasts were isolated from mesophyll tissue, callus and seedling cotyledons of Medicago sativa L. cv. Regen S and the halophyte M. marina L. Cotyledon protoplasts of Regen S were cultured in protoplast and cell culture media used previously for alfalfa protoplast culture and in media that had been simplified. There were no differences in the plating efficiencies of protoplasts cultured in the simple and complex media, but cells produced in the latter were greener and they colonized sooner. Protoplasts of M. marina grew at one-half the rate of Regen S protoplasts. Etiolated cotyledon protop

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20

Clark, Jason Daniel. "Yield and Quality of First-Year Corn Silage Following Alfalfa Stand Termination as Affected by Tillage, Herbicide, and Nitrogen Fertilizer." DigitalCommons@USU, 2014. https://digitalcommons.usu.edu/etd/2342.

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Glyphosate (N-(phosphonomethyl)glycine)-containing herbicides are a common and highly effective method to terminate alfalfa (Medicago sativa) stands. With the development and use of glyphosate-resistant (Roundup Ready®) alfalfa, this tool is no longer an option. The purpose of this research was to determine the optimal strategy to rotate from glyphosate-resistant alfalfa into silage corn (Zea mays). Studies were conducted in 2012 and 2013 at sites near Cache Junction and Cornish, Utah to determine the effect of tillage type and timing [fall conventional till (FCT), spring conventional till (SC

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21

Probst, Thomas Adam. "HARVEST FREQUENCY AND CULTIVAR EFFECTS ON YIELD, QUALITY, AND REGROWTH RATE AMONG NEW ALFALFA CULTIVARS." UKnowledge, 2008. http://uknowledge.uky.edu/gradschool_theses/527.

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Alfalfa (Medicago sativa L.) is the most important forage crop in the United States and consistently produces high yields and quality, but harvest frequency is the most significant factor for maximizing forage yield and quality. The objective of this research was to determine forage yield, quality, and regrowth rate among new alfalfa cultivars under four different harvest frequencies. Some of these cultivars have been marketed as having rapid rates of regrowth after cutting to maximize the number of harvests per year. Five cultivars were placed under four harvest frequencies of 25, 30, 35, and

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22

Al-Niemi, Thamir S. "Effect of Salinity (NaCl) on Germination, Growth, Ion Accumulation, and Protein Synthesis in Alfalfa (Medicago Sativa L.)." DigitalCommons@USU, 1993. https://digitalcommons.usu.edu/etd/3443.

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To study the effect of NaCl stress on gene expression in alfalfa (Medicago sativa L.), greenhouse and laboratory experiments were conducted with 22 cultivars during germination and post-germination growth. The ability of alfalfa cultivars to germinate at the different NaCl concentrations was not related to their postgermination performance (salt tolerance) under those conditions. Genetic effects were evident for Na and Cl ion uptake and accumulation in alfalfa shoots and roots. The strategies of alfalfa cultivars to cope with NaCl stress includes exclusion of Na from shoots and Cl from roots o

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23

Gale, Jody A. "A Simple Model to Predict Optimal Harvest Time of Alfalfa Using Near Infrared Reflectance Spectroscopy, Environmental, Morphological, and Growth Parameters." DigitalCommons@USU, 1988. https://digitalcommons.usu.edu/etd/7454.

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Knowledge of relationships between nutrient levels, yield, maturity, and environmental influences on alfalfa (Medicago sativa L.) are necessary to estimate when to harvest alfalfa to maximize quality and yield. Objectives were to document the change in nutrient content, yield, and growth stage of alfalfa grown in Utah as it matures and to develop a simple model to predict optimal harvest date. The study involved three locations in major alfalfa producing regions in Utah. Samples were collected from three commonly grown alfalfa varieties between 26 April and 26 September in 1987. Maximum and mi

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24

Sajid, G. Mustafa. "Hydrogen Uptake Genes and Nitrogen Fixation Efficiency of Rhizobium Species in Symbiosis With Alfalfa, Chickpea and Pigeonpea." DigitalCommons@USU, 1991. https://digitalcommons.usu.edu/etd/3458.

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The plasmids pDN211 and pDNll, isolated from the gene bank of the Rhizobium japonicum strain I-110, have been reported to complement two different Nif+ Hup· (nitrogen fixation positive and hydrogen uptake negative) mutants. A 5.9-kb Hindiii DNA fragment of the cosmid pHU52, isolated from the gene bank of R. japonicum strain 122DES, has been reported to code for the two polypeptide subunits of uptake hydrogenase. To determine homology between the structural genes of uptake hydrogenase of the two strains, a Southern blot of the Hindiii restriction fragments of the plasmids pDN211 and pDN11 was h

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25

Bucht, Onni. "Ljudvågors stimulerande påverkan hos alfalfa och linser : En studie om akustiska instruments och sinusvågors påverkan hos alfalfafröns och linsers växtprocess." Thesis, Högskolan Dalarna, Ljud- och musikproduktion, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:du-36120.

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This research was conducted in order to provide information about the effect of sound waves in the growth settings of alfalfa (also known as lucerne) and lentils. Humans have researched about the effect of sound on humans and other animals since the beginning of our time. One of humanity’s oldest research on effects of sound is human communication. In order to expand the research of the effect of sound, this thesis expands to the area of plants. The method used consisted of playing Korobeiniki – also known as the theme song from Tetris – recorded in two versions. One version was played in pian

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26

Khalil, Hala. "Model Medicago species for studies of low temperature signaling and cold acclimation." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=30844.

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To identify a model legume experimental system for studying low temperature signaling and cold acclimation, cold-induced expression and regulation of homologues of alfalfa (Medicago sativa) cold acclimation-specific genes cas15 and cas30 were examined in M. arborea (relatively frost tolerant) and M. truncatula (relatively frost sensitive). Both cas15 and cas30 genes are present in the genomes of both species but whereas both genes are cold-induced in M. arborea, only cas15 is induced in M. truncatula. Cold-induced expression of these genes is inhibited by calcium chelators and channel blockers

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27

Martínez, Pérez Mireya. "Involvement of the host RNA N6-adenosine methylation (m6A) pathway in the infection cycle of Alfalfa mosaic virus." Doctoral thesis, Universitat Politècnica de València, 2020. http://hdl.handle.net/10251/155976.

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[ES] Las modificaciones químicas post-transcripcionales implican un nuevo nivel de modulación de la expresión génica. Al comienzo de esta Tesis, algunos componentes del complejo de metilación del nitrógeno en posición 6 de la adenosina (m6A) habían sido caracterizados en plantas. Sin embargo, a diferencia de mamíferos y levadura, ninguno de los 13 homólogos de AlkB (atALKBH1-10B) - potenciales desmetilasas (o erasers) - y las 13 proteínas de la familia YTH (ECT1- 11, AT4G11970 y CPSF30) - potenciales proteínas de reconocimiento de m6A (o readers) - identificadas en el genoma de Arabidopsis se

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28

Mohamad, Ramzi Muhiddin. "N2-Fixation in Alfalfa (Medicago sativa L.) Seedlings and Rhizobium meliloti L. Grown in Vitro Under Salt and Drought Stresses." DigitalCommons@USU, 1987. https://digitalcommons.usu.edu/etd/3417.

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Alfalfa, Medicago sativa L., cultivars, breeding lines and germplasm releases (populations) and Rhizobium meliloti L. strains that exhibit nitrogen fixation efficiency and tolerance to salinity and drought stresses should enhance seedling establishment, increase yields, reduce nitrogen dependency on petroleum-based nitrogen fertilizers, and allow wider use of irrigated lands in semiarid and a rid regions. In vitro experiments were conducted to determine relative salt (sodium chloride -- NaCl) tolerance: l) during germination and early seedling growth of 229 alfalfa populations from North Afric

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29

Cox, Steven R. "Forage Yield and Quality of Binary Grass-Legume Mixtures of Tall Fescue, Orchardgrass, Meadow Brome, Alfalfa, Birdsfoot Trefoil, and Cicer Milkvetch." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/4998.

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Rising fertilizer prices have led a return to the use of grass-legume mixtures to reduce N costs and improve pasture productivity. The objective of this study was to determine optimal species combinations of binary grass-legume mixtures to improve forage production and pasture nutritive value in irrigated pastures of the Intermountain West. The study was conducted at the Utah State University Intermountain Pature Research Facility near Lewiston, UT. Tall Fescue (TF), Orchardgrass (OG), and meadow brome (MB) were grown with alfalfa (ALF), birdsfoot trefoil (BFTF), and cicer milkvetch (CMV) in l

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30

Vincent, Laura A. "The Effect of Salinity Level upon the Yield, Root Growth, and Water Extraction of Contrasting Rooting Subpopulations of Alfalfa (Medicago sativa) Under Conditions of Zero Leaching." DigitalCommons@USU, 1996. https://digitalcommons.usu.edu/etd/6432.

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A major problem in irrigated agriculture in the Western U.S. is the gradual accumulation of salinity in the plant root zone. These nonuniformly saline soils contain increasing amounts of salinity with depth, and salt accumulation is accelerated in situations where leaching is minimized. Root growth and thus plant yield is limited in these soils due to decreased water uptake. We studied the root growth of two subpopulations of alfalfa differing in their ability to produce fibrous roots to determine if altering root morphology would increase plant yield and water extraction, in an irrigated sali

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31

Poulter, Rachel. "Investigating the role of soil constraints on the water balance of some annual and perennial systems in a Mediterranean environment /." Connect to this title, 2005. http://theses.library.uwa.edu.au/adt-WU2006.0018.

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32

Dolling, Perry. "Lucerne (Medicago sativa) productivity and its effect on the water balance in southern Western Australia." University of Western Australia. Faculty of Natural and Agricultural Sciences, 2006. http://theses.library.uwa.edu.au/adt-WU2006.0108.

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[Truncated abstract] In southern Western Australia the replacement of deep-rooted native vegetation with annual species has resulted in rising water tables and increased salinity due to insufficient water use. The area has a Mediterranean-type climate where rainfall during summer is generally low but variable resulting in limited plant growth. However, if rainfall does occur it potentially can contribute to to the increased water excess or drainage by increasing the soil water content before the main drainage period in winter. The first study investigated factors controlling soil water content

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33

Tickes, Barry. "Alfalfa Renovation." College of Agriculture, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/201364.

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A test was conducted to evaluate the effect that renovating a weak alfalfa stand had upon yields in one field in the Yuma Valley. Results indicated that yields were not significantly different in the renovated vs. the not renovated plots. Under the conditions present in this test, there appeared to be no yield advantage to renovation during the first year.

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34

Rethwisch, Michael D., and Michael Kruse. "Effect of Late Winter 1998 Furadan4F Alfalfa Stubble Treatment on Alfalfa Growth and Alfalfa Weevil, Aphid, and Threecornered Alfalfa Hopper Populations." College of Agriculture, University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/205153.

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Furadan 4F was applied to alfalfa regrowth stubble following the first harvest of 1998 to examine treatment effects of alfalfa weevils, aphids, resultant plant growth, and threecornered alfalfa hoppers. Furadan 4F reduced larval numbers throughout the period that larvae were present (25 days after treatment). Little effect was noted for adult weevil numbers in field. Aphid numbers were also reduced by the treatment, and alfalfa stems in Furadan 4F plots were significantly taller at 21 days post treatment. Little, if any, effect from the Furadan 4F treatment was noted for adult threecornered al

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35

Ranger, Christopher M. "The chemical mechanism for defense of glandular-haired alfalfa, Medicago sativa L., against the potato leafhopper, Empoasca fabae (Harris) /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3137739.

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36

Rethwisch, Michael D. "Spring Alfalfa Insecticide Trial." College of Agriculture, University of Arizona (Tucson, AZ), 1991. http://hdl.handle.net/10150/201373.

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37

Tickes, Barry. "Sandbur Control in Alfalfa." College of Agriculture, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/201387.

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EPTC IO percent granules, Trifluralin 10 percent granules and Poast were evaluated for southern sandbur (cenchrus echinatus) control. Trifluralin resulted in variable control ranging from 90 percent down to 55 percent. EPTC produced good but sometimes varied control when applied in February, prior to the germination of the weeds, and repeated in April, June and July. Poast was effective postemergence only when applied to small seedlings. It was ineffective when applied to established sandbur.

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38

Ottman, M. J., and B. R. Tickes. "Alfalfa Irrigation Termination, Yuma." College of Agriculture, University of Arizona (Tucson, AZ), 1994. http://hdl.handle.net/10150/201407.

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Alfalfa irrigation is often withheld as a water conservation measure in Arizona. The objective of this research was to test the hypothesis that alfalfa yield and stand can be permanently damaged by withholding irrigation water. Irrigation was terminated during the summer (July through October) or winter (November through February) on a Superstition sand in Yuma. Summer irrigation termination reduced plant density from 4 to 1.5 plants per square foot and reduced hay yield from 0.76 to 0.27 tons per acre per cutting after irrigation was resumed. Winter irrigation termination had no residual effe

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39

Ottman, M. J., and R. L. Roth. "Alfalfa Irrigation Termination, Maricopa." College of Agriculture, University of Arizona (Tucson, AZ), 1994. http://hdl.handle.net/10150/201408.

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Alfalfa irrigation is often withheld as a water conservation measure in Arizona. The objective of this research was to test the hypothesis that alfalfa can be permanently damaged by withholding irrigation water. Irrigation was terminated during the summer (July or August through September) or summer through winter (July or August through mid -March) on a Casa Grande sandy loam at Maricopa. Irrigation termination at Maricopa was not detrimental to stand although hay yields were depressed from 1.47 to 1.28 tons per acre following the second cycle of summer irrigation termination and from 1.57 to

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40

Bourassa, Hélène. "Membrane proteins and cold acclimation in alfalfa." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56916.

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Membrane proteins specific to cold acclimation were studied in alfalfa (Medicago falcata L. cv Anik) seedlings and cell cultures. They were identified following separation on polyacrylamide gels and localized as far as possible to specific membranes by fractionation on continuous sucrose gradient and analysis of marker enzyme assays.<br>With cold acclimation, certain membrane proteins from seedlings showed subtle changes (mainly increases) in their steady-state amount and in their net synthesis rate. Most of these changes were in proteins with molecular weights below 100 kDa and were associate

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41

Barstow, Ben. "Alfalfa Insecticide Trial, Coolidge." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200497.

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42

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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43

Dawson, Lester, and David K. Parsons. "Alfalfa Variety Trial, Maricopa County." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200499.

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44

Harper, John, and David K. Parsons. "Alfalfa Variety Yield Comparison, Coolidge." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200500.

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45

Harper, John. "Alfalfa Yield and Cutting Interactions." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200496.

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46

Tickes, Barry R., and Michael Ottman. "Evaluation of Coated Alfalfa Seed." College of Agriculture, University of Arizona (Tucson, AZ), 1990. http://hdl.handle.net/10150/201034.

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A test was conducted to evaluate the effect of two seed treatments on seven varieties of alfalfa. The treatments included Rhizocote, Rhizocote plus Apron plus Rovral and untreated seed. Significantly fewer seedlings emerged for the coated than the uncoated seed when planted on a pound for pound basis. First cutting alfalfa yields were neither increased nor decreased as a result of the seed treatments.

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47

Tickes, Barry R., and Stanley Heathman. "Shepardspurse Control in Established Alfalfa." College of Agriculture, University of Arizona (Tucson, AZ), 1990. http://hdl.handle.net/10150/201339.

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48

Tickes, Barry R., and Michael Ottman. "Alfalfa Response to Water and Nitrogen." College of Agriculture, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/201367.

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49

Rethwisch, Michael D., Paula Hayden, Ben Hayden, and Bradford J. Griffin. "Insecticidal effects on cowpea aphids and their parasitoids, blue alfalfa aphids, and alfalfa weevils in 2002." College of Agriculture, University of Arizona (Tucson, AZ), 2002. http://hdl.handle.net/10150/203855.

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Twentynine insecticide treatments were applied on Feb. 7, 2002, to evaluate the effects of chemistry and rates on cowpea aphids and associated parasitic wasps. Data were also able to be collected on blue alfalfa aphids and alfalfa weevil larvae. At seven days post treatment fewest cowpea aphids were noted in plots treated with Furadan, the 3.84 oz./acre rate of WarriorT, and several of the higher rates of Lorsban 4E. Organophosphate insecticides had fewer cowpea aphids on the whole than did pyrethroid insecticides. All insecticide treatments had significantly fewer parasitic wasps than the unt

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50

Back, Merri, and A. K. Dobrenz. "Increasing the Leaf Area of Alfalfa." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200495.

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