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Relevant bibliographies by topics / Agriculture, Agronomy. Biology, Genetics. Agriculture, Plant Culture / Dissertations / Theses

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Dissertations / Theses on the topic 'Agriculture, Agronomy. Biology, Genetics. Agriculture, Plant Culture'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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Consult the top 27 dissertations / theses for your research on the topic 'Agriculture, Agronomy. Biology, Genetics. Agriculture, Plant Culture.'

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1

Sieberg, Maureen A. "Heritability and development of the free fatty acids and acylglycerideconstituent fatty acids in Vernonia galamensis oil." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/280501.

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Since the mid-1970's, there has been active research on the development of Vernonia galamensis (Cass.) Less. as a potential new oilseed crop. Vernolic acid (cis-12:13-epoxy-cis-9-octadecenoic acid) comprises 70--75% of vernonia oil and is chemically reactive, affording it a variety of industrial applications. A concern in the domestication of an oilseed crop is to establish a breeding program to improve oil quality traits. The objectives of this research were to (1) develop a rapid procedure for seed analyses; (2) determine the development of vernonia oil; and (3) estimate the narrow-sense her

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2

Diallo, Mamadou MBaye 1962. "Genetic variability within and between apomictic Guayule (Parthenium argentatum Gray) lines." Thesis, The University of Arizona, 1994. http://hdl.handle.net/10150/278439.

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Guayule (Parthenium argentatum Gray), a semidesert shrub was evaluated as a potential rubber crop. Since polyploid guayule reproduces by apomixis, progeny of individual plants should duplicate the characteristics of their parent. This study was conducted to estimate variations within and among progeny families from single-plant selections. Ten progeny per family were individually evaluated for plant height, width, fresh and dry weight of clipped branches, rubber and resin content, and yield. Leaves of selected plants were analyzed by gradient polyacrylamide gel electrophoresis for esterase and

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3

Lopez-Valenzuela, Jose A. "Characterization of proteins influencing the nutritional qualityof maize (Zea mays L.) endosperm." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/280366.

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Elongation factor 1A is one of the lysine-rich proteins increased in o2 mutants, and its concentration is highly predictive of the protein-bound lysine content of the endosperm. Understanding the biological basis of this relationship could help to explain the mechanisms of lysine accumulation in the endosperm, providing new insights for developing maize genotypes with better nutritional quality. Three different eEF1A isoforms were purified from developing endosperm and investigated in their accumulation, structural and functional activities. The accumulation of the isoforms appears to be devel

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4

Idso, Keith Edward 1969. "The recovery of physiological processes following irrigation of water-stressed extra long-staple cotton." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278091.

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In the southwestern United States, rising costs and limited availability of water have lead to irrigation scheduling based on plant stress indicators in an effort to conserve water. This research was conducted to better define the recovery rates of transpiration, stomatal resistance, and leaf water potential in field grown extra long staple cotton (Gossypium barbadense cv. Pima S-6) following varied durations of water stress. Three water stress treatments were maintained by scheduling irrigations at different Crop Water Stress Index (CWSI) values. Plants irrigated at 0.19 and 0.68 CWSI units n

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5

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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6

Hara, Yuto 1959. "Physical and chemical soil properties affecting the growth habits of agave species." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278200.

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Nine physically and chemically different soil samples from five study sites in which agaves grew, or were grown, were investigated to evaluate the effects of soil physical and chemical properties on the growth habits of agaves. In five Arizona study sites, biomass data of seven agave species has been recorded for the past ten years. Agaves were grown experimentally in the greenhouse using two widely different soil types from the five sites to evaluate growth under controlled conditions. Influence of edaphic factors on agave growth for the study sites and greenhouse experiment was evaluated. Th

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7

Luna, Ruiz Jose de Jesus 1959. "The crown system of barley: I. Temperature, seeding depth and genotypic effects II. Classification and description." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/291560.

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Little is known about the crown system and its association with plant growth and development in spring cereals. This study investigated temperature, seeding depth and genotypic effects on crown development of barley; relationships between crown and seminal root systems; and classification and description of crown systems under deep seeding. Two greenhouse experiments were performed using PVC tubes. Low temperature and deep seeding reduced percentage and rate of emergence but increased crown number, crown depth, and crown weight in most genotypes. Crown number, crown depth and crown weight show

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8

Wang, Xuelu. "Biochemical and genetic analysis of factors influencing lysine content in maize (Zea mays L.) endosperm." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/284224.

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Protein-bound and free lysine contributed to the total lysine content of maize endosperm, and both of these can be significantly increased by the opaque-2 (o2) mutation. Elongation factor 1A is one of the lysine-rich proteins increased in o2 mutants, and its concentration is highly correlated with the protein-bound lysine content of the endosperm. However, the biological basis of this correlation is unknown. The mechanism by which the free amino acid content, including free lysine, is increased by the o2 mutation is also poorly understood. Understanding the biological basis of these traits co

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9

Todd, Steven Michael. "Application of Near-Infrared Spectroscopy to Study Inheritance of Sweetpotato Composition Traits." Thesis, North Carolina State University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3575892.

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<p> As interest in new sweetpotato (<i>Ipomoea batatas</i> (L.) Lam.) markets such as starch feedstocks, anthocyanin production, chips and French fries, and other processed food products have increased, breeders have begun developing sweetpotatoes with unique compositions. This dissertation describes a three-pronged strategy to understand the genetic control of sweetpotato composition and modify it using near infrared spectroscopy (NIRS), quantitative inheritance studies, molecular markers, and exotic germplasm.</p><p> In our first experiment, a 5 × 5 NCII crossing block with 25 full-s

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10

Hagely, Katherine Bray. "Improving soybean seed composition through molecular breeding for Raffinose family oligosaccharides, lectin, and trypsin inhibitors." Thesis, University of Missouri - Columbia, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3576094.

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11

Soleimani, Vahab D. "Genome dynamics in barley (Hordeum vulgare L) cultivars: Molecular diversity, evolution, and DNA fingerprinting." Thesis, University of Ottawa (Canada), 2005. http://hdl.handle.net/10393/29264.

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In the absence of whole genome sequencing, molecular markers are indispensable tools for the study of genome evolution, genetic diversity measurements, and genotype identification. We have used sequence-specific amplified polymorphism (S-SAP) markers that were derived from the BARE-1, an active retrotransposon of barley, to measure the contribution of this element to the evolution of barley genome among 103 cultivars that are commonly grown in Canada and the United States. The results were compared to the genome diversity measures obtained by the single nucleotide polymorphisms (SNP). The barl

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12

Coelho, Cintia Marques. "Identification of quantitative trait loci (QTL) affectingendoreduplication and characterization of cyclin dependent kinase inhibitorsin developing maize (Zea mays L.) endosperm." Diss., The University of Arizona, 2005. http://hdl.handle.net/10150/280767.

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Endoreduplication is a process of genome duplication without mitosis. Although endoreduplication is common among plants and animals, the molecular mechanisms involved with this process are not fully understood. Two strategies were used to determine the genetic components involved with endoreduplication. One, based on QTL analysis and the other strategy involved identifying cell cycle candidate genes, and characterizing them in regard to endoreduplication. To map genes influencing endoreduplication, four backcross populations were created from crosses between a high (Sg18) and a low (Mo17) endo

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13

Ellis, Danielle René. "Characterization of a citrus vascular-specific zinc-binding cysteine proteinase inhibitor." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/298754.

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A 712 bp partial cDNA clone (czbp- 1) of the citrus vascular zinc binding protein (CVZBP) was isolated using reverse transcriptase polymerase chain reaction (RT-PCR). The deduced amino acid sequence of czbp-1 was identical to the N-terminal amino acid sequence for the CVZBP. Czbp- 1 had a 549 bp open reading frame and two putative polyadenylation sites, +20 bp and +103 bp relative to the poly-A tail. The deduced amino acid sequence had identity with members of the Kunitz soybean proteinase inhibitor (KSPI) family. Many members of this family are present in high concentrations in storage organs

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14

Meng, Jianye. "Genetic analysis of soybean aphid resistance gene in soybean K1621." Diss., Kansas State University, 2010. http://hdl.handle.net/2097/4599.

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Doctor of Philosophy<br>Genetics Interdepartmental Program-Agronomy<br>William T. Schapaugh Jr<br>The soybean aphid (Aphis glycines Matsumura) has been one of the major pests of soybean [Glycine max (L.) Merr.] in soybean-growing regions of North America since it was first reported in 2000. The objectives of this study were to screen for soybean aphid resistant genotypes, determine the inheritance of resistant genes, and map and validate the resistance gene in the moderate resistant genotype K1621 using simple sequence repeat (SSR) markers. A mapping population of 150 F2:3 families from the cr

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15

Wilson, Jamie Jo. "Production of wheat-Haynaldia villosa Robertsonian chromosomal translocations." Thesis, Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/1085.

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16

Van, der Walt Izak David. "Pollen biology in relation to artificial hybridization in the genus Protea." Thesis, Stellenbosch : University of Stellenbosch, 1995. http://hdl.handle.net/10019.1/16084.

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Thesis (MScAgric)--University of Stellenbosch, 1994<br>127 Leaves printed single pages, preliminary pages i-viii and numberd pages 1-118.Includes bibliography,tables and figures.<br>Date on t.p.: Dec. 1994.<br>ENGLISH ABSTRACT: Effects of pH,sucrose, boric acid and temperature on in vitro germination of pollen of Protea repens (L.) L. cv. 'Embers' were investigated in hanging-drop culture to establish optimum conditions for germination. Optimum values were found within ranges pH: 5 - 8, sucroseconcentration:0.4 - 0.7 M, boric acid concentration:50 - 500 mg.e-1 , and incubation temperatu

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17

Balimponya, Elias George. "Application of Genomic Selection and Association Mapping to Breeding for Resistance to Rice Blast and Bacterial Blight of Rice (Oryza sativa L.)." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1449138999.

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18

Kuraparthy, Vasu. "Genomic targeting and mapping of agronomically important genes in wheat." Diss., Manhattan, Kan. : Kansas State University, 2007. http://hdl.handle.net/2097/311.

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19

Frances, Anne. "A study of Guaymi and Tico Homegardens In Southern Costa Rica." FIU Digital Commons, 2003. https://digitalcommons.fiu.edu/etd/3629.

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20

Harilal, Vibin Eranezhath. "Genetics and Quantitative Trait Loci Mapping of Septoria Tritici Blotch Resistance, Agronomic, and Quality Traits in Wheat." Thesis, North Dakota State University, 2013. https://hdl.handle.net/10365/26478.

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Most breeding programs aim at developing superior germplasm and better cultivars that combine high yield, disease and pest resistance, and end-use quality to satisfy the requirements of the growers as well as industry. A population, consisting of 138 F2-8 recombinant inbred lines (RILs) derived from a cross between ‘Steele-ND’ and ND 735, was evaluated to study the inheritance pattern of the septoria tritici blotch (STB)-resistant genes, agronomic and quality traits. The framework map made of 392 markers, including 28 simple sequence repeat (SSR) markers and 364 DArT markers, spanned a total d

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21

Rothe, Nolan. "Validation of tilling populations in diploid and hexaploid wheat." Thesis, Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/4125.

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22

Vijayalakshmi, Kolluru. "Physiological and genetic analyses of post-anthesis heat tolerance in winter wheat (Triticum aestivum L.)." Diss., Manhattan, Kan. : Kansas State University, 2007. http://hdl.handle.net/2097/300.

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23

Jamago, Joy Membreve. "Breeding for high yield and high protein in soybean and the potential use of new flower color genes /." 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3290257.

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Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2007.<br>Source: Dissertation Abstracts International, Volume: 68-11, Section: B, page: 7030. Adviser: Randall L. Nelson. Includes bibliographical references. Available on microfilm from Pro Quest Information and Learning.

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24

Heffron, Leslie M. "Induction, selection, and characterization of ethylene-insensitive mutants in Antirrhinum majus (snapdragon) /." 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3242867.

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Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006.<br>Source: Dissertation Abstracts International, Volume: 67-11, Section: B, page: 6173. Adviser: Schuyler S. Korban. Includes bibliographical references. Available on microfilm from Pro Quest Information and Learning.

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25

Tatum, Tatiana C. "The significance of inter- and intraspecific DNA content variation in agriculturally important species /." 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3223731.

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Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006.<br>Source: Dissertation Abstracts International, Volume: 67-07, Section: B, page: 3571. Adviser: A. Lane Rayburn. Includes bibliographical references. Available on microfilm from Pro Quest Information and Learning.

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26

Hunt, Matt Robert. "Molecular analyses of the soybean glabrous mutation (P1) and of transgenic lines designed to modify seed composition /." 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3362923.

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Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2009.<br>Source: Dissertation Abstracts International, Volume: 70-06, Section: B, page: 3289. Adviser: Lila Vodkin. Includes bibliographical references. Available on microfilm from Pro Quest Information and Learning.

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27

Jones, Sarah I. "Transcript profiling of soybean seed development from fertilization to maturity /." 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3362932.

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Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2009.<br>Source: Dissertation Abstracts International, Volume: 70-06, Section: B, page: 3290. Adviser: Lila O. Vodkin. Includes bibliographical references (leaves 159-165) Available on microfilm from Pro Quest Information and Learning.

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