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Relevant bibliographies by topics / Plant breeding – Research

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Dissertations / Theses

Academic literature on the topic 'Plant breeding – Research'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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Dissertations / Theses on the topic "Plant breeding – Research"

1

Dohle, Sarah. "Development of Resources for Lima Bean (Phaseolus lunatus ) Breeding and Genetics Research." Thesis, University of California, Davis, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10607596.

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<p> Lima bean (<i>Phaseolus lunatus</i>) is a semi-perennial, leguminous species characterized by large flat, crescent-moon-shaped pods and trifoliate leaves with generally vigorous growth habit. Lima bean is naturally distributed from the southern United States to northern Argentina, from sea level to over 2,700m and has been grown commercially in California since the late 1800’s. The objective of the University of California Davis Lima bean breeding program is to develop improved large and baby, bush- and vine-type dry bean varieties with lygus (<i>L. hesperus</i>) and nematode (<i>M.

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2

Lopez-Montes, Antonio JoseÌ. "Integrating farmers' knowledge and decision-making in the planning of participatory research of cassava/maize intercropping." Thesis, Bangor University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248899.

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3

Stewart, Alan V. "Plant breeding aspects of ryegrasses (Lolium sp.) infected with endophytic fungi." Phd thesis, University of Canterbury. Lincoln College, 1987. http://theses.lincoln.ac.nz/public/adt-NZLIU20071005.172250/.

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Some aspects of the presence of systemic endophytic fungi in agriculturally important New Zealand grasses were studied in relation to plant breeding. Seedling resistance to adult Argentine stem weevil feeding in perennial ryegrass, Italian ryegrass and tall fescue was found to be related to the presence of their respective Acremonium endophytes in the seed rather than to plant genetic resistance. In addition a study of perennial ryegrass revealed that this resistance was independent of endophyte viability. The seedling resistance conferred by the endophyte of Italian ryegrass was found to be b

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4

Prasad, Rajib. "Identification of high seed yielding and stable fenugreek mutants." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences, c2011, 2011. http://hdl.handle.net/10133/3118.

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Fenugreek (Trigonella foenum-graecum L.) was recently introduced to western Canada as a forage crop. To reach its full potential, high yielding, early maturing fenugreek cultivars that produce good seed yield and quality within 100 frost free days need to be developed. In this study, mutation breeding approach was used on five locally adapted fenugreek genotypes to generate variants showing improved seed yield and yield attributing traits that can be used for cultivar development. Mutant generations of these plants were evaluated in multi-location, multi-year trials, and individual plants were

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5

Lee, Ee Lynn, and University of Lethbridge Faculty of Arts and Science. "Genotype X environment impact on selected bioactive compound content of fenugreek (Trigonella foenum-graecum L.)." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences, c2009, 2009. http://hdl.handle.net/10133/2471.

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Fenugreek (Trigonella foenum-graecum L.) is a medicinal plant with potential applications in the natural health product industry. In a multi-environmental setting, 10 genotypes were tested across 14 growing environments (using a Randomized Complete Block Design), representing irrigated and rainfed growing conditions in southern Alberta, Canada over two cropping years (2006 and 2007). The objectives of this study were (1) to determine seed yield, plus content and productivity of selected bioactive compounds (galactomannan, diosgenin and 4-hydroxyisoleucine), (2) to assess the impact of growing

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6

Smith, Samson William. "Effects of Reactive Oxygen Species on Life History Traits of Caenorhabditis elegans." PDXScholar, 2012. https://pdxscholar.library.pdx.edu/open_access_etds/712.

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Evolutionary life history theory predicts that tradeoffs among fitness-related phenotypes will occur as a result of resource limitations and/or physiological constraints. Such tradeoffs are defined as the cost(s) incurred on one component of fitness (e.g., reproduction) by the increased expression of another fitness-related trait (e.g., longevity). Only recently have researchers begun to investigate the mechanistic bases of life history tradeoffs. A recent proposal is that reactive oxygen species (ROS) have a central role in shaping life history traits and tradeoffs. Research on disparate anim

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7

Childerhouse, Emma. "The effect of a natural plant extract and synthetic plant growth regulators on growth, quality and endogenous hormones of Actinidia chinensis and Actinidia deliciosa fruit : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Horticultural Science at Massey University, New Zealand." Massey University, 2009. http://hdl.handle.net/10179/1052.

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Kiwifruit are of huge economic importance for New Zealand representing 29 percent of total horticultural exports. Fruit size is the biggest determinant of what consumers are willing to pay, and there is also a positive relationship between consumer preference for flavour and percentage dry matter. The two main cultivars exported from New Zealand are Actinidia chinensis ‘Hort 16A’ (gold kiwifruit) and A. deliciosa ‘Hayward’ (green kiwifruit). Under current commercial practice the only product allowed for use on kiwifruit to increase fruit size in New Zealand is Benefit®. Benefit® has been shown

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8

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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9

Moot, Derrick J. "Harvest index variability within and between field pea (Pisum sativum L.) crops." Lincoln University, 1993. http://hdl.handle.net/10182/1285.

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The association between individual plant performance and seed yield variability within and between field pea crops was investigated. In 1988/89 six F8 genotypes with morphologically distinct characteristics were selected from a yield evaluation trial. Analysis of the individual plant performance within these crops indicated an association between low seed yields and the location and dispersion of plant harvest index (PHI) and plant weight (PWT) distributions. The analyses also showed there was a strong linear relationship between the seed weight (SWT) and PWT of the individual plants within ea

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10

Raikar, S. V. "Protoplast fusion of Lolium perenne and Lotus corniculatus for gene introgression." Diss., Lincoln University, 2007. http://hdl.handle.net/10182/301.

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Lolium perenne is one of the most important forage crops globally and in New Zealand. Lotus corniculatus is a dicotyledonous forage that contains valuable traits such as high levels of condensed tannins, increased digestibility, and high nitrogen fixing abilities. However, conventional breeding between these two forage crops is impossible due to their markedly different taxonomic origin. Protoplast fusion (somatic hybridisation) provides an opportunity for gene introgression between these two species. This thesis describes the somatic hybridisation, the regeneration and the molecular analysis

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