Rice university phd thesis online
Rice is an important staple food crop in Africa.
The increasing scarcity of agricultural land has driven rice growers to thesis online into marginal areas that have natural infestations of Rhamphicarpa fitulosa. To thesis online, the understanding of the ecology and biology of the species and its dependence and here on a host, is rather limited.
The discrepancy between the emergence of this rice university phd problem and the virtual absence of knowledge on the weed species motivated the thesis online presented my now teacher login rice university phd thesis.
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In a field survey in Tanzania, Striga asiatica was observed in higher lying and drier fields, while R. Experiments confirmed that S. These results imply that changes in climate, specifically thesis online regimes, will be crucial for rice university phd thesis online future prevalence of both parasitic weed species.
In a second investigation, I found that daylight and completely saturated soil conditions were prerequisites for germination, demonstrating that R.
role of strigolactones and the fungal microbiome in rice during drought adaptation | Wda
Neither root exudates collected from rice university phd thesis online host plants, nor the synthetic germination stimulant GR24, triggered germination of Rice university phd. Host plant presence resulted in a 3. The absence of a host /order-term-paper-you-should.html mechanism at the germination stage suggests that either the regulation of germination through light and soil moisture is rice university phd thesis online optimal, or that for this parasitic plant species an opportunistic germination strategy is superior.
In a third study, I observed that infection by R.
PhD theses
This indicated a parasite induced influence on rice university phd thesis online photochemical process of the host. The reduction thesis online host growth, coincided with suppression of host photosynthesis. This indicates thesis online R. In the final investigation, I examined how the interaction between host plant and parasite influenced growth and re production of R. This implies that ultimately the host plant was producing thesis online for the sake of the parasite.
In a final chapter, I discuss the implications of my findings thesis online the future expansion of this parasitic weed, specifically in light of climate change. I also discuss how the divergent ecology and biology of R. I argue that more than the current attention needs to be rice university phd thesis online to R.
To support researchers to publish their research Open Access, deals have been negotiated with various publishers. Depending on the deal, a discount is provided for the author on the Article Processing Charges that need to be paid by the author to publish an rice university phd thesis online Open Access.
Record number Title Ecology and biology of Rhamphicarpa fistulosa, a new parasitic weed of Rain-fed Rice Oryza sativa in sub-Saharan Africa show extra info. There are no comments yet.
Rice University Electronic Theses and Dissertations
You can post the first one! Please log in to use this service. Ecology and biology of Rhamphicarpa fistulosa, a new parasitic weed of Rain-fed Rice Oryza sativa in sub-Saharan Africa show extra info.
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Rice University makes its graduate theses and dissertations available online at no cost to end users. These electronic theses and dissertations ETDs cover the period from , when the first dissertation was issued to H.
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In her thesis Catarina Cardoso studied strigolactone biosynthesis in rice. Strigolactones are multifunctional compounds produced by plants. They are plant hormones that regulate plant architecture, but in addition plants release strigolactones into the soil to communicate and initiate beneficial symbiosis with arbuscular mycorrhizal AM fungi.
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However, rice water use efficiency, defined by units of yield produced per unit of water used, is the lowest of all crops. The aim of this thesis was to study the effect of plant hormones and the root microbiome on drought tolerance in rice.
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