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.
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Showing 1 to 11 of 11 for “"abiotic and biotic stresses"”.
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The role of genotypic diversity in stabilizing plant productivity in variable environments
… compared to monocultures in highly variable and unpredictable environments, yet knowledge of the specific mechanisms underlying enhanced yield stability has been limited. Field studies are constrained by environmental conditions that cannot be fully controlled and thus reproduced. This thesis …
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The Arabidopsis thaliana Heat Shock Transcription Factor A1b Transcriptional Regulatory Network
… to be central regulators of plant responses to abiotic and biotic stress conditions. However, the extremely high multiplicity in plant HSF families compared to those of other kingdoms and their unique expression patterns and structures suggest that some of them might have evolved to become major …
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The Role of Arabidopsis thaliana Cyclic Nucleotide-Gated Channels 2, 6, and 19 in Extracellular ATP Signalling
… messenger in plant growth, development, and stress perception. Plants generate stress-specific Ca2+ signals (Ca2+ signatures) to translate extracellular signals into cellular responses. Extracellular Adenosine 5’-triphosphate (eATP) is a crucial signalling molecule in plants but poorly …
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Effects of several abiotic and biotic factors and plant hormones on growth, morophology, and camptothecin accumulation in Camptotheca acuminata seedlings
This dissertation seeks to explore the effects of abiotic factors [nitrogen (N), sodium chloride (NaCl), and ultraviolet (UV) light], biotic factor [acetylsalicylic acid (ASA)], and plant hormones [benzyl adenine (BA) and naphthalene acetic acid (NAA)] on growth, morphology, and secondary …
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Genetic analysis of cowpea (Vigna unguiculata L. WALP) agronomic variables in phosphorus limiting soil.
… cultivated grain legume pulse, vegetable and fodder crop of African origin. However, yields have been characteristically low as a result of both abiotic and biotic stresses. Among the abiotic stresses, yield losses due to phosphorus (P) deficiency is an important factor. Identification and …
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Genetic analysis of cowpea (Vigna unguiculata L. WALP) agronomic variables in phosphorus limiting soil.
… cultivated grain legume pulse, vegetable and fodder crop of African origin. However, yields have been characteristically low as a result of both abiotic and biotic stresses. Among the abiotic stresses, yield losses due to phosphorus (P) deficiency is an important factor. Identification and …
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Consumption of Endophyte Infected Fescue During Gestation in Beef Cows
… States that is known for its resistance to abiotic and biotic stresses. A main reason for tall fescue's resistance to these stresses is attributed to the presence of a fungal endophyte. Unfortunately, this endophyte also adversely affects cattle production. Cows consuming the ergot alkaloids …
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High-throughput maize root phenotyping
… to the development of root systems per se, and how root system complexity contributes to plant performance under abiotic and biotic stresses. In order to close this knowledge gap, we first investigated the genetic basis of embryonic and post-embryonic maize root systems complexity. We define …
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Rhizobia inoculant effects on bambara groundnut growth and yield in Namibia
… in Africa after groundnut (Arachis hypogea) and cowpea (Vigna unguiculata). It is normally grown in poor soils, is drought tolerant, and has a high potential for nitrogen fixation. Despite that, Bambara groundnut yields are on a gradual decline due to a combination of abiotic and biotic …
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Benzoic acid regulates the physio-biochemical responses of chia (Salvia hispanica L.) seedlings under salinity stress
… renders plants constantly susceptible to various abiotic and biotic stresses. These stresses generate reactive oxygen species (ROS), which cause cellular damage through osmotic or oxidative stress, ultimately constraining agricultural productivity worldwide. To mitigate the challenges caused by …