Genetic engineering of roses and other plants of floricultural importance to give them a truly blue petal color is arguably one of the holy grails of plant biotechnology. Toward this goal, bluish carnations and roses were previously engineered by establishing an exclusive accumulation of delphinidin (Dp)-type anthocyanins in their petals via the heterologous expression of a flavonoid 3',5'-hydr...

It has been generally thought that in ethylene-sensitive plants such as carnations, senescence proceeds irreversibly once the tissues have entered the climacteric phase. While pre-climacteric petal tissues have a lower sensitivity to ethylene, these tissues are converted to the climacteric phase at a critical point during flower development. In this study, it is demonstrated that the senescence...

The two-spotted spider mite, Tetranychus urticae, is a ubiquitous polyphagous arthropod herbivore that feeds on a remarkably broad array of species, with more than 150 of economic value. It is a major pest of greenhouse crops, especially in Solanaceae and Cucurbitaceae (e.g., tomatoes, eggplants, peppers, cucumbers, zucchini) and greenhouse ornamentals (e.g., roses, chrysanthemum, carnations), ...

The year 2014 marked the fortieth anniversary of Portugal’s Revolution of the Carnations, which inaugurated what Samuel P. Huntington dubbed the “third wave” of global democratization. Any assessment of the state of global democracy today must begin by recognizing—even marveling at—the durability of this historic transformation. When the third wave began in 1974, only about 30 percent of the wo...

1-mcp, as an ethylene action inhibitor, significantly delayed the wilting of cut carnation.this study was carried out to determine the optimum concentration and duration of 1-mcp application on vaselife of cut carnation c.v 'tempo'. six levels of 1-mcp concentrations (0,20,40, 60, 80 and 100 nl.1-1) as well as three application times (3, 6 and 9 hours) were studied in a factorial comp...