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Mountain Papaya
The mountain papaya (''Vasconcellea pubescens'') also known as mountain pawpaw, papayuelo, chamburo, or simply "papaya" is a species of the genus ''Vasconcellea'', native to the Andes of northwestern South America from Colombia south to central Chile, typically growing at altitudes of . It has also been known as ''Carica pubescens.'' Description ''Vasconcellea pubescens'' is an evergreen pachycaul shrub or small tree with an average height of ca. and can grow up to tall. It has one central stem and palmate leaves of 5-7 lobes with thick pubescence on the underside of the leaf and petiole. The petioles are long and the top of the leaf has no pubescence. It has a fast growth rate which is one of the reasons it is considered Invasive species, invasive in some regions (see section Invasiveness) and it has an ecological preference for higher altitudes. This plant is mostly dioecious but can be found to be Monoecy, monoecious or even Andromonoecy, andromonoecious. The existence of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alphonse Pyramus De Candolle
Alphonse Louis Pierre Pyramus (or Pyrame) de Candolle (27 October 18064 April 1893) was a French-Swiss botanist, the son of the Swiss botanist Augustin Pyramus de Candolle. Biography De Candolle, son of Augustin Pyramus de Candolle, first devoted himself to the study of law, but gradually drifted to botany and finally succeeded to his father's chair at the University of Geneva. He published a number of botanical works, including continuations of the ''Prodromus'' in collaboration with his son, Casimir de Candolle. Among his other contributions is the formulation, based on his father's work for the ''Prodromus'', of the first Laws of Botanical Nomenclature, which was adopted by the International Botanical Congress in 1867, and was the prototype of the current International Code of Nomenclature for algae, fungi, and plants, ICN. He was elected a foreign member of the Royal Swedish Academy of Sciences in 1859 and was awarded the Linnean Medal of the Linnean Society of London in 188 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fruit
In botany, a fruit is the seed-bearing structure in flowering plants (angiosperms) that is formed from the ovary after flowering. Fruits are the means by which angiosperms disseminate their seeds. Edible fruits in particular have long propagated using the movements of humans and other animals in a symbiotic relationship that is the means for seed dispersal for the one group and nutrition for the other; humans, and many other animals, have become dependent on fruits as a source of food. Consequently, fruits account for a substantial fraction of the world's agricultural output, and some (such as the apple and the pomegranate) have acquired extensive cultural and symbolic meanings. In common language and culinary usage, ''fruit'' normally means the seed-associated fleshy structures (or produce) of plants that typically are sweet (or sour) and edible in the raw state, such as apples, bananas, grapes, lemons, oranges, and strawberries. In botanical usage, the term ''fruit'' als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norte Chico, Chile
The ''Norte Chico'' region is one of five natural regions of continental Chile, as defined by the government agency CORFO in 1950. Its northern border is formed by the limit with the Far North, to the west lies the Pacific Ocean, to the east the Andes mountains and Argentina, and to the south the Zona Central natural region. Although from a strictly geographic point of view, this natural region corresponds to the Chilean territory between the rivers Copiapó and Aconcagua. Traditionally, the Norte Chico refers to the zone comprising the regions of Atacama and Coquimbo. This region was home to the Diaguita people. Geography The near north (Norte Chico) extends from the southern border of the Atacama Desert to about 32° south latitude, or just north of Santiago. It is a semiarid region whose central area receives an average of about 25 mm of rain during each of the four winter months, with trace amounts the rest of the year. The near north is also subject to droughts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conquest Of Chile
The Conquest of Chile is a period in Chilean history that starts with the arrival of Pedro de Valdivia to Chile in 1541 and ends with the death of Martín García Óñez de Loyola in the Battle of Curalaba in 1598, and the subsequent destruction of the Seven Cities in 1598–1604 in the Araucanía region. This was the period of Spanish conquest of territories, founding of cities, establishment of the Captaincy General of Chile, and defeats ending its further colonial expansion southwards. The initial conflict with the Mapuche extended well beyond the conquest period becoming known as the Arauco War, and the Spanish were never able to reassert control in Araucanía south of the Bío Bío River. Spanish conquerors entering Chile were accompanied by thousands of yanakuna from the already subdued territories of the Inca Empire as well by a few African slaves. In the first years of the period the Spanish in Chile gained a reputation of being poorly dressed among the Spanish in Per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chilean Mythology
Chilean mythology includes the mythology, beliefs and folklore of the Chilean people. Evolution Chilean mythology covers of a large collection of myths and legends from the beliefs of Chile's indigenous groups (Mapuche, Tehuelche, Changos, Diaguitas, Picunches, Pehuenches, Huilliches, Poyas and more). Their mythology shows a significant influence by European colonization, mainly during the Spanish colonial period. These influences have helped Chilean mythology to evolve and become distinct from other local mythologies such as Chilota mythology. The variety of sources of these beliefs has in some causes caused syncretism or the fusion of different beings, coming from these diverse mythological origins, complimenting and differentiating Chilean mythology. Similarly, the differences in landscapes and climates in the Chilean territory have configured defined geographical areas that experienced different historical circumstances. This favored the appearance of different and new b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venta De Papayuelas (Xavier Sch)
Venta may refer to: Architecture *Venta (establishment), a Spanish typical inn generally located in unpopulated and remote rural areas. Places *Venta (river), a river in Lithuania and Latvia *Venta (city), a city in Lithuania * Venta (village), a village in Lithuania * ''Venta'' (catamaran), a 1973 Latvian catamaran *''Venta'', Common Brittonic for "market" or "town" in Iron Age Britain, used particularly for: ** Venta Belgarum (Venta of the Belgae), the Roman town of Winchester in England **Venta Icenorum (Venta of the Iceni), the Roman town of Caistor St Edmund in England **Venta Silurum Venta Silurum was a town in Roman Britain (''Britannia''). The name ''Venta Silurum'' means "the town of the Silurēs", with the Silurēs being a powerful and warlike tribe. Today, it consists of remains in the village of Caerwent in Monmouthshi ... (Venta of the Silures), the Roman town of Caerwent in Wales People * Javi Venta (born 1975), Spanish footballer * Krishna Venta (1911–1958), Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Introgression
Introgression, also known as introgressive hybridization, in genetics is the transfer of genetic material from one species into the gene pool of another by the repeated backcrossing of an interspecific hybrid with one of its parent species. Introgression is a long-term process, even when artificial; it may take many hybrid generations before significant backcrossing occurs. This process is distinct from most forms of gene flow in that it occurs between two populations of different species, rather than two populations of the same species. Introgression also differs from simple Hybridization (biology), hybridization. Simple hybridization results in a relatively even mixture; gene and allele frequencies in the first generation will be a uniform mix of two parental species, such as that observed in mules. Introgression, on the other hand, results in a complex, highly variable mixture of genes, and may only involve a minimal percentage of the donor genome. Definition Introgression or i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asperisporium Caricae
''Asperisporium caricae'' is an ascomycete fungus that is a plant pathogen, found in North and South America. It is responsible for the black spot disease on papaya The papaya (, ), papaw, () or pawpaw () is the plant species ''Carica papaya'', one of the 21 accepted species in the genus '' Carica'' of the family Caricaceae, and also the name of its fruit. It was first domesticated in Mesoamerica, within ... trees. It affects generally leaves and fruits at any time. Sporodochia of ''Asperisporium caricae'' was growing under side of leaf, dark blackish brown to black, stroma well-developed, erumpent. References * C. J. R. Cumagun and C. L. Padilla. First record of Asperisporium caricae causing black spot of papaya in the Philippines. Australasian Plant Disease Notes, 2007, 2, 89–90. * Shantamma, S.G. Mantur, S.C. Chandrashekar, K.T. Rangaswamy and Bheemanagouda Patil. Review Article: Status of Black Spot of Papaya (''Asperisporium caricae''): A New Emerging Disease.I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
F1 Hybrid
F1 hybrid (also known as filial 1 hybrid) is the first filial generation of offspring of distinctly different parental types. F1 hybrids are used in genetics, and in selective breeding, where the term F1 crossbreed may be used. The term is sometimes written with a subscript, as F hybrid. Subsequent generations are called F, F, etc. The offspring of distinctly different parental types produce a new, uniform phenotype with a combination of characteristics from the parents. In fish breeding, those parents frequently are two closely related fish species; however, in plant and animal breeding, the parents often are two inbred lines. Gregor Mendel focused on patterns of inheritance and the genetic basis for variation. In his cross-pollination experiments involving two true-breeding, or homozygous, parents, Mendel found that the resulting F1 generation was heterozygous and consistent. The offspring showed a combination of the phenotypes from each parent that were genetically domin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Papaya Ringspot Virus
''Papaya ringspot virus'' (PRSV) is a pathogenic plant virus in the genus ''Potyvirus'' and the virus family ''Potyviridae'' which primarily infects the papaya tree. The virus is a non-enveloped, flexuous rod-shaped particle that is between 760–800 nm long and 12 nm in diameter. It is transmitted between plants by mechanical activities like pruning and by numerous aphid species such as ''Myzus persicae''. No seed transmission has been detected. There are two major types of this virus, but both are serologically indistinguishable and are so closely genetically related that they are now considered the same virus species. The type that gave the virus its name are the Type P isolates (PRSV-P). This type infects papaya and several members of the melon family (Cucurbitaceae). The other type, Type W isolates (PRSV-W), does not infect papaya. Isolates of PRSV-W do infect cucurbits such as watermelon, cucumber, and squash and were originally known as ''Watermelon mosa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cultivar
A cultivar is a kind of Horticulture, cultivated plant that people have selected for desired phenotypic trait, traits and which retains those traits when Plant propagation, propagated. Methods used to propagate cultivars include division, root and stem cuttings, offsets, grafting, micropropagation, tissue culture, or carefully controlled seed production. Most cultivars arise from deliberate human genetic engineering, manipulation, but some originate from wild plants that have distinctive characteristics. Cultivar names are chosen according to rules of the International Code of Nomenclature for Cultivated Plants (ICNCP), and not all cultivated plants qualify as cultivars. Horticulturists generally believe the word ''cultivar''''Cultivar'' () has two meanings, as explained in ''#Formal definition, Formal definition'': it is a classification category and a taxonomic unit within the category. When referring to a taxon, the word does not apply to an individual plant but to all plants t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different varieties, subspecies, species or genera through sexual reproduction. Generally, it means that each cell has genetic material from two different organisms, whereas an individual where some cells are derived from a different organism is called a chimera. Hybrids are not always intermediates between their parents such as in blending inheritance (a now discredited theory in modern genetics by particulate inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridization, which include genetic and morph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
