Interspecific hybridisation and polyploidy are recognized as the most important sources of evolution and domestication of flowering plants. In ornamental plant breeding these phenomena go hand in hand and can be observed in the breeding history of many ornamental crops (Rosa, Chrysanthemum, Gladiolus, Alstroemeria, Lilium, orchids etc). With lily as model crop techniques developed for overcomin...

Logic is often said to be “formal” in some sense. This is generally taken to mean that logical inferences, and therefore valid logical arguments, are those where the conclusion follows based on the form of the constituent sentences alone. Catarina Dutilh Novaes (2011) and John MacFarlane (2000) cite this notion as one of the ways we can think about the formality of logic. More specifically, thi...

Six tetraploid Alstroemeria clones were micropropagated by rhizome multiplication, a system whereby the shoots were cut off from the rhizome and discarded. In a three-week subculture interval, the average rhizome multiplication rate for all genotypes was 2.3. In one selected genotype the discarded shoots were used to initiate another micropropagation system: the leafy explant micropropagation s...

The aim of this paper is to present recent advances in the microbotanical analyses an organic residue on a potsherd from late Holocene hunter-gatherer site Argentine Patagonia, which first evidence kind for processing starchy food. Standard methods were carried out starch grain recovery and morphometric analysis, care being taken prevention cross-contamination evaluation post-depositional facto...

in order to examine the effects of essential oils and silver nanoparticles as anantimicrobial preservative in the solutions of alstroemeri cv. sukari cut flowers, anexperiment was conducted with 11 treatments and 3 replications in a completelyrandomized design. in this study, we used essences of carvacrol, thymol and zataria oilwithconcentrations of 50 and 100 mg l-1 and silver nanoparticles wi...