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 52 for “"Perennials"”.
-
Increasing the overwintering survival of container-grown perennials
Container grown perennials are a popular product offered by nurseries and greenhouses and included in their production but little research has been reported on proper overwintering techniques for herbaceous perennials and ornamental grasses. In the first experiment rooted liners of Pennisetum …
-
Foliar Symptoms of Acute Ozone Injury and Exposure Response Characteristics of Select Native Perennials
<p>Twenty seven perennial species native to the Eastern Temperate Forests Level I Ecoregion were exposed to an acute ozone (O3) treatment consisting of a target peak O3 concentration of 2.0 ppm for 30 minutes in a closed chamber environment, during the summer of 2010. Plants were evaluated for …
-
Examination of 2,4-D tolerance in perennial Glycine species and the involvement of cytochrome P-450 as a tolerance mechanism
… of 2,4-D was similar between soybean and the perennials. However, soybean metabolized almost 60% less 2,4-D than the perennials at an equivalent 2,4-D concentration. The primary metabolite produced by the tolerant perennial accessions was the glycoside conjugate of 4-OH-2,5-D. Soybean and less …
-
Isolepis R.Br. (Cyperaceae) revisited : a phylogeny based on plastid and nuclear ribosomal DNA data
… are currently described as annual or short lived perennials with predominantly terete spikelet's
-
Ornamental Plants Impact Insect Pollinator Abundance and Diversity in Gardens
… preference between native and non-native plants, perennials and annuals, and among different plant species. Our data revealed significant variation in the total abundance and diversity of flower-visiting attracted insects among plant species. Brown-eyed Susans attracted the highest abundance of …
-
Assessment of vegetation diversity and rangeland condition in the Highveld communal grazing lands of Swaziland
… were identified. Of these, 9 species were strong perennials and the remaining 7 were annuals. In addition, 5 species were identified as highly palatable, 6-moderately palatable and 4-less palatable species
-
Senescence of Native Perennial Warm Season Grasses Senescence Associated Switchgrass Transcriptome
… continuous harvests after one sowing event. Perennials senesce at adapted rates of their native environments; however, early senescencing crops do not maximize the growing season as nutrient reallocation takes precedence. Chlorophyll degradation and nitrogen reallocation was observed to occur …
-
Assessing population yields and developing an agronomic cropping system for Silflower (Silphium integrifolium), a perennial oilseed crop
… deep roots, large seeds relative to other native perennials, and can produce 9.5 Mg ha-1 of biomass (Schiffner et al., 2020). We compare seed yield of ten silflower populations, two collected from wild germplasm, one from initial domestication work at the Land Institute in Kansas, and seven …
-
Reflections of Other/Reflections of Self
… distance through defamiliarizing the self. “Perennials” is the story of Noemi Tellez, an immigrant to the U.S. who must choose between working and taking care of her family. In “Load Bearing” Luis, the eldest child, faces his family and friends on one of his last days before moving away to …
-
Plant Response to the Barstow to Las Vegas Motorcycle Race of November, 1974
… ·indicated a general negative response of perennials to motorcycle disturbance, the vegetational cover reduced on an average of 34%. In the pit area, a positive response was held by annuals due to the edge effect. Differences in percent species composition, density, and cover indicate a …
-
Ecological aspects of the substrate and water relations of deciduous and evergreen plant forms in the western Karoo
… deciduous and five evergreen non-succulent woody perennials growing in both substrates were investigated on high radiation (equator-facing) and low radiation (pole-facing) slopes at one intensive study site, the Worcester Veld Reserve.
-
The Effects of Gibberellic Acid, Smoke Water, and Cold Stratification on the Germination of Native Perennial Seed
… on the seed germination yield of some native perennials.</p>
-
Examining surface energy and moisture balance changes associated with land conversion from annual to perennial biofuel crops
… seasonal pattern. During the growing season perennials had higher albedo than row crops, with miscanthus having the highest followed by switchgrass then row crops. Averaged over the course of the study, crop albedos had the opposite trend during winter, though results were not statistically …
-
Phylogenetic inference and macro-evolutionary patterns in Ficinia Schrad. (Cyperaceae)
… mutation rate among recent and rapidly radiated perennials, several relationships within m the genus are resolved with moderate nodal support.
-
Environmental Variability and Phenotypic Flexibility in Plants (Illinois)
… flexibility. (4) Twelve species of herbaceous perennials, four from each habitat, were raised in high and low light. Their phenotypic flexibility was estimated by two methods. Phenotypic flexibility was greater in the old field species group than in the prairie species group and greater in the …
-
Where trees grow, assets grow: applying spatial matching to evaluate agroforestry’s household welfare impacts in Kenya
Agroforestry--perennials planted in association with annual field crops--has potential as a method for sequestering carbon while reportedly increasing agricultural yields and farmer income. However, measuring the downstream effect of agroforestry promotion on household welfare is difficult due to …
-
The potential of agroforestry for utilisation as a significant development force in rural Kwazulu/Natal : the case of Kwabiyela
Agroforestry (the incorporation of woody perennials into crop production and animal husbandry systems) is placed within the rural development context at the local and national scales, and its potential role in attaining sustainable rural development evaluated. It is suggested as an appropriate …
-
ESTABLISHMENT AND GROWTH OF ANNUAL AND PERENNIAL GRASSES ON COPPER MINE TAILING SLOPES (ARIZONA).
… (Cynodon dactylon (L.) Pers.). Prior to planting perennials, barley residue was incorporated into the slopes using a spike-tooth chain drag and a sheepfoot roller, or was left unincorporated. Incorporation of barley residue aided in its breakdown and helped prepare a good seedbed. The spike-tooth …
Page 1 of 3