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 20 of 37 for “"Wilting"”.
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Selection of Drought-Tolerant Soybean Lines Using a Field Screening Method and Identification of QTLs for Slow Wilting and Nitrogen Fixation Associated With Drought-Tolerance
… to overcome this abiotic stress. Slow wilting, prolonged nitrogen fixation, and minimal yield reduction under water stress play an important role in evaluating breeding materials. Despite advances in knowledge about plant responses to drought conditions, there is little information on …
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Genomic and Physiological Approaches to Improve Drought Tolerance in Soybean
… transpiration), canopy temperature (CT), canopy wilting, and canopy coverage (CC) are promising physiological traits associated with improvement of drought tolerance. Genome-wide association studies (GWAS) are one of the genomic approaches to provide a high mapping resolution for complex trait …
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Breeding Soybean [Glycine max (L) Merr.] Under Reduced Irrigation
… onsets at different reproductive stages affect wilting, seed yield and key agronomic traits on determinate maturity group 5 (MG 5) soybean 3) to conduct a nested association mapping (NAM) for wilting, maturity, and seed yield and to identify superior individuals in seed yield using genomic …
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High Throughput Phenotypic Evaluation of Drought-related Traits in Soybean
… composition (δ18O). Five fast-and five slow-wilting genotypes derived from a cross of Benning × PI416937 were evaluated under three water treatments that included a full and two deficit-irrigation treatments of increasing severity (deficit 1, and 2). After canopy closure, aerial infrared …
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Pine Seedling Survival and Growth Related to Moisture Retention of Eight Texas Forest Soils
… droughty areas than moisture constants nearer to wilting point tensions. Likewise, water consumption (evapotranspiration) during favorable moisture conditions and during moisture stress was related to soil moisture retention characteristics. Costly reforestation failures can be avoided by …
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Development of high-throughput phenotyping methods and evaluation of morphological and physiological characteristics of peanut in a sub-humid environment
… for plant height, leaf area, and leaf wilting have been used as proxies for the desired tolerance traits. However, proximal data collection, i.e. measurements are taken on individual plants or in the proximity, is slow. Remote data collection and machine learning techniques for analysis …
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Chemical, Physical, and Biological Factors Influencing Nutrient Availability and Plant Growth in a Pine Tree Substrate
… floral quality, and on post-production time-to-wilting of poinsettias. Data from this work show that PTS requires an additional 100 mg·L-1 N to grow poinsettias comparable to plants grown in peat unless the particle size of PTS was decreased or 25% peat was added, in which case no additional …
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Leveraging genomic mapping and QTL analysis to enhance drought tolerance of cultivated peanut (Arachis hypogaea L.)
… chlorophyll content of the leaves (SPAD) and wilting for QTL mapping. Mapping identified 27 minor QTL on eight chromosomes for all physiological characteristics, i.e NDVI, CTD, SPAD and wilting, with logarithmic of odds values ranging from 2.5 to 38.5 and the phenotypic variance explained by …
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The relationship between soil components and soil physical constants of some Manitoba soils
… to apparent density, field capacity, permanent wilting percentage, available moisture (dry weight basis), available moisture (volume fraction) and moisture retained at 1/4, 1/3, 1/2, 1, 3, 7 and 15 atmospheres tension by multiple regression analyses. The relationships were subsequently tested on …
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Detection of the Oak Wilt Pathogen in Sapwood of Northern Oak Species Using PCR Technology
… Drill shavings were collected from actively wilting oak trees as well as from tissues taken the year following branch or whole tree death. Between the assays tested (nested PCR, real-time PCR, and isolation), the nested PCR assay resulted in the highest estimated probability of C. fagacearum …
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Parameter uncertainty in nonpoint source pollution modeling
… saturated conductivity, field capacity, and wilting point using sand and clay content, porosity, and organic matter as regressors. Evaluation of the regression equations indicated acceptable predictions of field-scale variability in field capacity and wilting point but not of saturated …
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Inheritance of Resistance to Tomato Spotted Wilt Virus in Lettuce (Lactuca Sativa L.)
… are necrotic spotting of young leaves, stunting, wilting, and death of the plant. The large host range of this disease has made it difficult to control. Genetic resistance might work, but there have been no reports of resistance in lettuce. Hartmann (personal communication) undertook a preliminary …
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Responses of two grass species to plant growth regulators, fertilizer N, chelated Fe, salinity and water stress
… and/or chelated Fe to creeping bentgrass reduced wilting and evapotranspiration, and increased leaf water status, root strength, and shoot dry matter at two levels of N during and after drought stress.
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Soilless media for seed germination and growth of tomato transplants, and for the rooting of certain herbaceous stem cuttings
… moisture, porosity,field capacity and permanent wilting point of these 2b media were determined. This information was compared with the results from the germination and growth study of tomato plants. Weblite was a constituent of the seven best media for germination. Tomato plants grown in media …
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MOLECULAR CHARACTERIZATION OF THE INTERACTION BETWEEN HELIANTHUS ANNUUS AND VERTICILLIUM DAHLIAE
… a pathogenicity factor on sunflower by inducing wilting symptoms such as chlorosis, necrosis and vascular discoloration, but also as an elicitor triggering defense responses of the host. VdNEP induced the hypersensitive cell death in Nicotiana benthamiana leaves and sunflower cotyledons. …
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Use of gypsum blocks for measurement of soil water status : A dissertation submitted in partial fulfilment of the requirements for the Diploma of Agricultural Science in the University of Canterbury [Lincoln College]
… is available for plant growth, since the wilting percentage corresponds approximately to the 15 atmosphere-percentage. Currently much of the interest in soil moisture is in terms of water potential which, because it is an energy concept , is valid for comparing water status through the …
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Protein preservation and rumen degradability of ensiled forage, previously treated with microwave or steam heat, formic acid, or anhydrous ammonia
… CP after incubation for 72 h. In Experiment 2, wilting, steam, formic acid and ammonia treatments had similar, but decreased CP degradability when compared to direct-cut silage. Longer duration heat in Experiment 1 resulted in greater silage protein preservation, and greater decrease in rumen …
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Hydrocyanic Acid Potential of Black Cherry Leaves
… on HCN-p; and (4) to ascertain the effect of wilting or drying of leaves on HCN-p.
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Atributos físicos e biológicos do solo sob diferentes condições de uso nas várzeas de Sousa (PB)
… in the soil, specifically, field capacity, wilting point, and available water. According to the results obtained, it can be seen that the biological part of the overall microbial diversity was larger in the area under native vegetation, with highlights on the fungal genus Mucor, Gram …
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