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 35 for “"drought resistance"”.
-
Physiological traits for screening drought resistance in barley
… of physiological traits which may be related to drought resistance in cereals and examines the feasibility of using these screening techniques in selecting more drought resistant genotypes of barley for South Australia
-
Identification of Drought-Responsive Genes and Validation for Drought Resistance in Rice
Drought stress was studied in rice (Oryza sativa) and maize (Zea mays) to identify drought-responsive genes and associated biological processes. One experiment with rice examined drought responses in vegetative and reproductive tissues and identified drought-responsive genes in each tissue type. …
-
Evaluation of physiological and morphological basis for drought resistance in maize and sorghum
Drought stress is often the most limiting factor to maize and sorghum production in the semi-arid areas. This study evaluates the physiological (water relations, gas exchange characteristics, membrane leakage), biochemical (antioxidant protection mechanisms and photosynthetic pigment compositions) …
-
Drought Resistance Response of Tall Fescue Established in Disturbed Urban Soils Utilizing Biosolids
… The study had three phases denoted as the pre-drought, drought, and recovery phases which started in April and concluded in August of 2014. Turfgrass color and quality, volumetric soil moisture percentage to a 5 cm depth, normalized difference vegetative index (NDVI), clipping yield, and …
-
Establishment, Forage Production and Drought Resistance of Native Perennial Legumes of the Canadian Prairies
… legume seed size (R2=0.0895). In a greenhouse drought study, four watering regimes (100, 75, 50, 25% field water holding capacity) were applied to seedling monoculture legume and legume-grass mixtures with B. riparius. A. flexuosus was the only native legume that showed differences in above and …
-
Burkholderia phytofirmans strain PsJN effects on drought resistance, physiological responses and growth of switchgrass
… physiology of switchgrass under a moderate pre-drought conditioning and a successive severe drought stress. PsJN inoculation increased biomass and promoted elongation of shoots within 17 days following inoculation. The enhanced root growth in PsJN inoculated plants lagged behind the shoot …
-
Drought Resistance and Resilience of Non-native vs. Native Grasses in the Northern Tallgrass Prairie
<p>Drought can have major impacts on rangeland productivity and remains highly unpredictable. Like many other rangelands in the US, the Tallgrass Prairie of eastern South Dakota contains native prairie where the plant composition includes mostly native species as well as pasture that has been …
-
The Heritability of Seedling Stage Drought Resistance in Rape and Its Relationship to Seedling Root Morphology
… examines the heritability of seedling-stage drought resistance in rape (Brassica campestris L.) and its association with seedling root morphology. The heritabilities of seedling stage drought resistance, based on percentage survival data from 40 half-sib families grown under high and low …
-
Screening Soybeans (Glycine Max (L.) Merrill) for Drought Resistance, Andpreliminary Studies on Soybean Inheritance Under Drought Stress
Made available in DSpace on 2014-12-14T14:37:26Z (GMT). No. of bitstreams: 1 7821236.pdf: 7140067 bytes, checksum: c214558dbf003af17d04ad0e0753aa3b (MD5) Previous issue date: 1978
-
Water Conservation Practices for Irrigation of Turfgrass Lawns
… environment; 2) evaluate the effects of chronic drought stress between drought-resistant and drought-sensitive varieties of tall fescue (Festuca arundinacea Schreb.; TF) and Kentucky bluegrass (Poa pratensis L.; KBG) under field conditions; 3) investigate field performance differences between KBG …
-
High-throughput phenotyping and genetic mapping of drought stress related traits in setaria (Setaria spp) and rice (Oryza spp)
Drought stress is one of the most important and complex abiotic stresses limiting crop yield. Therefore, it is essential to dissect this complex trait and understand mechanisms of drought resistance in the field. In this research, experiments were conducted in Setaria, a model C4 crop, and rice, a …
-
Floral trait architecture in crop sunflower (<i>Helianthus annuus</i>) under drought conditions
<p>Longer and more intense droughts are predicted to become more common in the coming century due to anthropogenic climate change. Drought can reduce crop yield and decrease food security. In order to mitigate the negative effects of drought on crop production, it is important to elucidate the …
-
Fate of genetically modified plant tissue in soil: what happens to the DNA
… engineering plants for pest and disease control, drought resistance, increased nutritional value content, and production of pharmaceuticals. With these advancements, concerns have risen over genetically engineered DNA entering natural ecosystems. This work focused on modeling the fate of …
-
Pengujian karakter morfologi untuk evaluasi ketahanan kekeringan beberapa varietas kedelai (Glycine max (L). Merril).
… water during the dry season which often leads to drought stress.In such conditions, attend to the development of soybean varieties that tolerant to drought stress is required. This study aims to determine the morphological characters that characterize drought resistance in several soybean …
-
Three Essays on Measuring the Ex-ante Economic Impacts of Agriculture Technology Innovations
… 'Ex-Ante Analysis of the Benefits of Transgenic Drought Tolerance Research on Cereal Crops in Low-Income Countries' develops a framework to examine the ex-ante benefits of transgenic research on drought in eight low-income countries, including the benefits to producers and consumers from farm …
-
Utilizing Electrical Geophysical Methods to Map Mycorrhizal Mycelium Networks Non-Invasively
… nitrogen cycling, and can provide some level of drought resistance to the surrounding flora. Due to the location and size of these network’s filaments, studying mycelium non-invasively has been difficult. The alternative method of laboratory grown samples, lacks the important environmental …
-
Natural variation of water use and water productivity in Arabidopsis thaliana
… availability has traditionally been assessed as drought resistance and more recently as water use efficiency (WUE). An extensive body of work has been established over the past 15 years where the natural variation of water use efficiency has been studied in the model species Arabidopsis thaliana …
-
MORPHO-PHYSIOLOGICAL EVALUATIONS OF ALEPPO AND BRUTIA PINE SEEDLINGS UNDER TWO DIFFERENT MOISTURE REGIMES (SYRIA, AFFORESTATION, CHLOROPLASTS).
The mechanism of drought resistance in the seedlings of Aleppo pine (Pinus halepensis) and Brutia pine (Pinus brutia) was investigated. Both species showed anatomical and morphological adaptations to conserve moisture. Aleppo pine had a thicker cuticle, fewer stomata per unit length, per unit area, …
-
SNP ANALYSIS FOR DROUGHT-RELATED CANDIDATE GENES IN A GERMPLASM COLLECTION AND A TILLING POPULATION OF ITALIAN RICE
… alleles with added value for the improvement of drought resistance in Italian rice. The EMS-induced genetic variability in drought-related candidate genes was then explored in a TILLING population developed in the Italian rice variety Volano. The Volano TILLING platform was validated through the …
-
The nitrogen nutrition of maize on dryland soils of the central Orange Free State
… compared with 30,000 plants per morgen. 9. The drought resistance of maize can be increased slightly when the proposed number of plants is planted in wide (6 or 7 ft.) instead of in narrow (3 ft.) rows. Compared with 3 ft. rows, planting in 6 ft. rows resulted in only a slightly retarded …
Page 1 of 2