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 20 of 109 for “"root system"”.
-
Root system chip-firing
… as a process on the weight lattice of a root system, where the firing moves consist of adding a positive root whenever the weight we are at is orthogonal to that root. We call this the central-firing process. We give conjectures about certain initial weights from which central-firing is …
-
PHENOTYPING OF GRAPEVINE ROOT SYSTEM FOR DROUGHT ADAPTATION
… strategies, the adoption of drought tolerant rootstocks has emerged as one of the most promising and sustainable approaches. Since the outbreak of Phylloxera in the 19th century grapevine has been predominantly propagated through grafting and rootstocks have become essential tools to regulate …
-
Genetic Control of Root System Architecture in Rice
… has largely focused on aboveground phenotypes, root system traits represent potential unexplored targets for stress resilience and yield improvement. However, our understanding of the genetic control of root system architecture (RSA) in rice is fundamentally insufficient to contribute to these …
-
STUDY OF LOCAL ENVIRONMENTAL CONTROL OF ROOT SYSTEM ARCHITECTURE
… environment in nature, especially the root system. In a relatively small volume, soils vary greatly in texture, nutrient contents, pH, and moisture content, all of which has a great impact on shaping root architecture. Work presented in this thesis reveals that under normal growth …
-
Factors affecting root system response to nutrient heterogeneity in forested wetland ecosystems
… can respond by selectively proliferating their roots within nutrient-rich patches. However, many environmental factors may increase or decrease the degree of root proliferation by plants. I explored how soil fertility, nitrogen (N) or phosphorus (P) limitation, and soil oxygen availability …
-
The impact of forest disturbance on the fine root system of a tropical forest on Sulawesi, Indonesia
… und die Konvertierung von Wald in Waldfeldbausysteme sind an den Regenwaldrändern in Süd-Ost-Asien weit verbreitet. Diese Störung des Waldes führt zu einer nachhaltigen Veränderung der Bestandsstruktur und damit zu veränderten Ökosystemprozessen, einschließlich des Kohlenstoffkreislaufs. Bei …
-
Combining genotyping-by-sequencing data sets for GWAS and GWS study for maize root System architecture traits
Maize has a sophisticated and complex root architecture that is important for plant anchorage and uptake of nutrients and water. Tools such as genome-wide association (GWAS) and genome-wide selection (GWS) can help the breeders to make decisions about which genotypes should advance in their …
-
Unlocking the genetic potential of the root system, rhizosheath mucilage and microbiome of wheat (Triticum aestivum L.)
… of latitudes across both hemispheres. The wheat root system is a crucial determinant of plant performance, yet roots are overlooked in breeding due to the challenge of studying organs below ground. Evidence from the literature indicate that water and nutrient uptake are often suboptimal in high …
-
The Evaluation of Root System Architecture (RSA) As A New Breeding Target for Climate-Resilient Winter Wheat (Tritium aestivum L.)
… for plant breeders to shift their focus to the root system architecture (RSA) as a new target for indirect selection, enabled by the phenotypic plasticity of winter wheat (Triticum sp.), one of the main staple agronomic crops. Our current limited understanding of the dynamic nature of the root …
-
The Effects of European corn borer on whole-plant yieldand root knot nematode fitness in corn
… European corn borer and belowground herbivory by root knot nematode, Meloidogyne incognita Chitwood (Tylenchida: Heteroderidae), in corn. Two experiments were conducted to measure belowground herbivory by M. incognita in juvenile penetrations and eggs/root system. In the first experiment, the main …
-
Does root complexity affect the response of maize (Zea mays spp. mays) to abiotic stresses?
… and water acquisition, it is obvious that the root system of the maize plant is essential. Given the importance of the root system in plant performance, it is intuitive that differences in root characteristics would impact the performance of maize under water and nutrient limited conditions. …
-
High-throughput maize root phenotyping
The root system is important for plant adaptability to changing environments. Although the importance of the root system is well reported in the research literature there is still a considerable lack of knowledge with regard to the development of root systems per se, and how root system complexity …
-
Use of the systemic fungicide propiconazole for oak wilt management: an assessment of uncharacterized host - pathogen - fungicide interactions.
Propiconazole is a systemic fungicide widely used for the control of oak wilt, however, the long-term efficacy of this fungicide has not been well established and treatment effectiveness may be below levels that justify its use in many situations. To date, it is not known if propiconazole …
-
Double Affine Bruhat Order
Given a finite Weyl group W_fin with root system Phi_fin, one can create the affine Weyl group W_aff by taking the semidirect product of the translation group associated to the coroot lattice for Phi_fin, with W_fin. The double affine Weyl semigroup W can be created by using a similar semidirect …
-
Nutrient Foraging in Ten Southeast Coastal Plain Plant Species
Plant root system response to nutrient heterogeneity was tested in ten plant species of varying life form and successional status. All plants tested are native to the South Carolina coastal plain. Morphological responses of the root system (scale, precision and discrimination) and overall plant …
-
Exploring relationships between root architecture and growth of UK wheats (Triticum aestivum L.)
… during the grain filling period, growing deep rooting cultivars increased wheat yields by approximately 15%. Seedling root angle is associated with adult root system depth in Australian field-grown wheat cultivars (Triticum aestivum L.), but it is not yet known whether selection for root angle …
Page 1 of 6