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 15 of 15 for “"mineral nutrient"”.
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Enhancing mineral nutrient availability and corn productivity with biostimulants
… population, nitrogen fertility, additional nutrient fertility, and foliar protection (Ruffo et al., 2015). In recent years, a new technology has been discussed, namely, biological products. These products have a wide variety of uses but are typically intended to increase crop growth, relieve …
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Anatomical Developments and the Role of Carbohydrate or Mineral Nutrient Deficiency in Bud Necrosis of 'Riesling' grapevines (Vitis Vinifera L.)
… to 'Chardonnay' vines (BN-insensitive). Role of mineral nutrient deprivation was examined in 'Riesling' and 'Chardonnay' buds and the results indicated that BN is unlikely caused by essential nutrient deficiency. 'Chardonnay', the BN-insensitive cultivar had greater levels of starch deposits at …
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Water, mineral nutrient and hormone flows and exchanges in the hemiparasitic association between root hemiparasite Rhinanthus minor and the host Hordeum vulgare
… water relations, the flows and partitioning of mineral nutrients, the flows, depositions and metabolism of abscisic acid (ABA) and zeatin type cytokinins (zeatin Z, zeatin riboside ZR, zeatin nucleotide ZN) within the host, the parasite and between host and parasite and the flows and …
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THE AUTECOLOGY OF THE MEADOW THISTLE (Cirsium dissectum L. Hill) ON DEVON RHoS PASTURES, WITH PARTICULAR REFERENCE TO THE EFFECT OF MAJOR ENVIRONMENTAL VARIABLES ON THE POPULATION DYNAMICS
… high with little seasonal fluctuation. Mineral nutrient status was characterised by particularly low phosphorus, below optimal nitrogen, ample calcium and potassium and a soil pH which was only mildly acid. The physiological characteristics of C. dissectum were determined by a series of …
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An investigation of the influence of drought and other soil factors on the structure of a calcareous grassland.
… of drought with soil heterogeneity and mineral nutrient stress. Efforts have been made to differentiate between mechanisms of drought tolerance and drought avoidance, and this has allowed some assessment of the contribution of diversity in morphology, life history and physiology to the …
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Exploring candidate genes and rhizosphere microbiome in relation to iron cycling in Andean potatoes
… can influence the uptake and transport of micronutrients in the plant roots. Therefore, the contribution of soil microorganisms in the rhizosphere to improve Fe supply of plants may play a key role in Fe biofortification, especially under real world field-based soil scenarios. We thus …
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The Effects of Rootstock Selection and Carbon-based Fertility Amendments on Apple Orchard Productivity and Soil Community Ecology
… water loss, while improving soil structure and mineral nutrient availability. Orchard and pot-in-pot experiments were designed to study the following objectives: 1) determine the effects of integrated carbon-based fertilizer amendments on tree growth, productivity, and orchard soil fertility, 2) …
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Studies on soil and microbial lipases
… of triacylglycerol, soil type, temperature, and mineral nutrient additions. In synthetic mixtures of substrates the breakdown of triacylglycerol occurred after the microbial oxidation of alternative substrates. The lipolytic microbiota of both unamended and triacylglycerol-amended soils were …
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An integrated plant nutrition system (IPNS) for corn and cannabis in the Mid-Atlantic USA
… with higher efficiency of input use, since mineral nutrient losses due to runoff, leaching, erosion and gas emissions are leading to environmental degradation. A huge variety of materials can serve as a crop nutrient supply and they can be derived from different resources. The integrated …
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The AtMRS2 gene family from Arabidopsis thaliana
Magnesium (Mg2+) is an essential mineral nutrient for plants and is the most abundant free divalent cation in plant cells. However, our knowledge of the role of this ion in the plant cell is limited, and the mechanisms of homeostasis and transport of the ion are almost completely unknown. A. Tutone …
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Nitrogen Fate and Transformations in the Production of Containerized Specialty Crops
Nitrogen (N) fertilizer is a required mineral nutrient in containerized crop production that is necessary for crop growth and development. Due to production aspects, the N added to crops far exceeds the amount that the plant uses and such inefficiency results in adverse environmental impacts …
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The manipulation, introduction and ecology of field layer communities in broadleaved woodlands
… capacity to survive combined low irradiance and mineral nutrient deficiency and to respond simply to relief from one constraint, or synergistically to relief from both. A transitory growth check at eight weeks in Circaea lutetiana and Viola riviniana, possibly linked to the onset of mycorrhizal …
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Agronomic and marker-assisted breeding strategies for improving nitrogen use efficiency in maize
Nitrogen (N) is an essential mineral nutrient required for maize (Zea mays L.) development. Increased maize yields will be necessary as the world demand for food increases. However, with the growing concern for food security, maize yield increases must be obtained using more sustainable …
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A Study of the Genetics of Root Nodulation in Pigeonpea (Cajanus cajan) Using Indigenous Rhizobia
… their morphological characteristics on YMA-CR, nutrient agar and peptone glucose agar, the isolates were deposited into the South African Rhizobium Culture Collection gene bank. There was ˃40.0 % difference in the number of nodules between ‘Genotype-5’ and ‘Genotype-4’ but the difference in NDW …