Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 13 of 13 for “"semi-dwarf"”.
-
Effect of Allelic Variation in Rht Loci on Plant Height and Grain Yield of Soft Red Winter Wheat (Triticum aestivum L.)
… tall and prone to lodging. Introgression of a semi-dominant mutation at either of these two loci (Rht-B1b or Rht-D1b) results in a semi-dwarf phenotype and reduced plant height. When combined (Rht-B1b and Rht-D1b) an extremely short double-dwarf phenotype is observed. The objective of this …
-
Avoiding trade-off when enhancing Fusarium head blight resistance of barley
… display brassinosteroid (BR) insensitivity and a semi-dwarf phenotype. Interestingly, bri1 semi-dwarf lines did not display increased susceptibility to FHB. Additionally, bri1 mutation provided advantageous resistance to necrotrophs but did not increase susceptibility to biotrophs, demonstrating …
-
Agronomic, quality, and genetic analysis of the Rht18 semi-dwarfing gene in a Canadian Western Red Spring Wheat (Triticum aestivum L.) background
Semi-dwarf wheat has historically resulted in reduced stem lodging, increased harvest index, and in some areas, improved yields. The Rht18 gene is known to reduce height in wheat, but there are currently no commercial varieties in Western Canada that contain this gene. In Western Canada the two …
-
QTL Mapping of Panicle Architecture and Yield-Related Traits Between Two U.S. Rice Cultivars 'LaGrue' and 'Lemont'
… in a 3.2Mbp region. A candidate gene known as Semi-dwarf 1(sd-1) was found on chromosome1 that gives rice plants a semi-dwarf height and increased lodging resistance. Six candidate genes, UBP1-5, UBP1-8, Wide and Thick Grain 1 (WTG1), OsSPL16, OsSPL14, and OsCOL15, were found to control panicle …
-
Methane Emissions and Ammonia Volatilization from Drill-Seeded, Delayed-Flood Rice on a Silt-Loam Soil in Arkansas
… (Glycine max L.) or rice] and cultivar (i.e., semi-dwarf, standard-stature, and hybrid) in 2012, and to assess the impact on grain yield of ammonia (NH3) volatilization from preflood urea application with and without the urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT). A …
-
Are Barley Dwarfing Genes Important in Tolerance to Abiotic Stress?
… mutants of which were integral to the semi-dwarf, high yielding wheat lines of the Green Revolution. In addition to reducing plant growth, the gain of function (GoF) mutants in which DELLA protein is stabilised were shown to confer resistance to salt stress in the model species …
-
Can plant survive without steroids: Modulation of plant architecture and sex determination through brassinosteroid biosynthesis and signaling
… mutants include brassinosteroid deficient semi-dwarf (bds1) and bds2. The bds1 mutant is a point-nonsense EMS-induced mutation we localized to a gene that encodes an enzyme likely involved in BR biosynthesis. Using phylogenetic and sequence similarity analysis, we identified a bds1 close …
-
Economic feasibility of using weather-altering technology on apple orchards in Virginia
… used in situations where an orchard is of dwarf and semi-dwarf type rootstock and where there is an adequate supply of water, and (2) wind machines are also shown to be economically feasible to use in orchard situations and can be implemented in orchards with older seedling type trees and …
-
Methane Emissions from Direct-Seeded, Delayed-Flood Rice Grown on a Clay Soil
… cultivar (CLXL745) than from the pure-line, semi-dwarf cultivar (Cheniere) or the pure-line, standard-stature cultivar (Taggart), which totaled 10.2, 15.5, and 14.2 kg CH4-C ha-1, respectively. The low emissions measured in this study, coupled with the magnitude of Arkansas rice production …
-
Genetic analysis of the Group IV Rht LOCI in wheat.
The introduction of the group IV semi-dwarf Rht alleles, Rht-B1b (formerly Rht1) and Rht-D1b (formerly Rht2) into bread wheat varieties from the donor line „Norin 10‟ that began in the 1960s was a major contributor to the „green revolution‟. Rht-B1b and Rht-D1b were characterised and cloned over a …
-
GENETIC DISSECTION OF PINE1 CONTROLLED STEM ELONGATION AND NEW INSIGHTS INTO LONG DAY FLOWERING IN ORYZA SATIVA
… and signalling pathways: GIBBERELLIN INSENSITIVE DWARF1 (GID1), GIBBERELLIN INSENSITIVE DWARF2 (GID2), SEMI-DWARF (SD1) AND SLENDER RICE1 (SLR1). Two novel gain-of-function dominant mutations in SLR1 were also identified. The novel dominant slender mutants (named slrD) lacks two aminoacids close …
-
Investigations into the molecular interactions between Claviceps purpurea, the causal agent of ergot, and cereal hosts
… to co-locate with the wheat Reduced height (Rht) dwarfing gene alleles Rht-B1b and Rht-D1b. The wheat Rht loci encode DELLA proteins, Rht-B1b and Rht-D1b representing GA-insensitive mutations in DELLA. A linkage between Rht-B1b and Rht-D1b and ergot resistance could therefore indicate a role of GA …
-
Innovations in agronomic management to improve maize productivity
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms