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Pericallis × Hybrida
''Pericallis'' × ''hybrida'', known as cineraria, florist's cineraria or common ragwort is a flowering plant in the family Asteraceae. It originated as a hybrid between ''Pericallis cruenta'' and '' P. lanata'', both natives of the Canary Islands. The hybrid was first developed in the British royal gardens in 1777. It was originally known as ''Cineraria'' × ''hybrida'', but the genus ''Cineraria'' is now restricted to a group of South African species, with the Canary Island species being transferred to the genus ''Pericallis''; some botanists also treat it in a broad view of the large and widespread genus ''Senecio''. Some varieties are sold under the trade name Senetti. Cultivation and uses Florist's cinerarias can be raised freely from seeds. For spring flowering the seeds are sown in mid spring in well-drained pots or pans, in soil of three parts loam to two parts leaf mould, with one-sixth sand; cover the seed thinly with fine soil, and press the surface firm. When the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julius Friedrich Wilhelm Bosse
Julius may refer to: People * Julius (name), a masculine given name and surname (includes a list of people with the name) * Julius (nomen), the name of a Roman family (includes a list of Ancient Romans with the name) ** Julius Caesar (100–44 BC), Roman military and political leader and one of the most influential men of classical antiquity * Julius (judge royal) (fl. before 1135), noble in the Kingdom of Hungary * Julius, Count of Lippe-Biesterfeld (1812–1884), German noble * Julius, Duke of Brunswick-Lüneburg (1528–1589), German noble Arts and entertainment * Julius (''Everybody Hates Chris''), a character from the American sitcom * "Julius" (song), by Phish, 1994 Other uses * Julius (chimpanzee), a chimpanzee at Kristiansand Zoo and Amusement Park in Norway * Julius (month), the month of the ancient Roman calendar originally called ''Quintilis'' and renamed for Julius Caesar * Julius (restaurant), a tavern in Greenwich Village, New York City * Julius (software), a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pericallis × Hybrida (2058070328)
''Pericallis'' is a small genus of 15 species of flowering plants in the family Asteraceae, native to the Canary Islands, Madeira and Azores. The genus includes herbaceous plants and small subshrubs. In the past, the genus was often included in either ''Cineraria'' or ''Senecio''. The florist's cineraria (Pericallis × hybrida, ''Pericallis'' × ''hybrida'') is a Hybrid (biology), hybrid between ''P. cruenta'' and ''P. lanata''. Species Species include:Jones, K. E., Reyes‐Betancort, J. A., Hiscock, S. J., & Carine, M. A. (2014). Allopatric diversification, multiple habitat shifts, and hybridization in the evolution of Pericallis (Asteraceae), a Macaronesian endemic genus. American journal of botany, 101(4), 637-651. https://bsapubs.onlinelibrary.wiley.com/doi/full/10.3732/ajb.1300390 *''Pericallis appendiculata'' (L.f.) B.Nord. *''Pericallis aurita'' (L'Hér.) B.Nord. *''Pericallis cruenta'' (L'Hér.) Bolle *''Pericallis echinata'' (L.f.) B.Nord. *''Pericallis hadrosoma'' (Sven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid Plants
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 morphological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia Tech
The Virginia Polytechnic Institute and State University, commonly referred to as Virginia Tech (VT), is a Public university, public Land-grant college, land-grant research university with its main campus in Blacksburg, Virginia, United States. It was founded as the Virginia Agricultural and Mechanical College in 1872. The university also has educational facilities in six regions statewide, a research center in Punta Cana, Dominican Republic, and a study-abroad site in Riva San Vitale, Switzerland. Through its Virginia Tech Corps of Cadets, Corps of Cadets Reserve Officers' Training Corps, ROTC program, Virginia Tech is a United States Senior Military College, senior military college. Virginia Tech offers 280 undergraduate and graduate degree programs to its 37,000 students; as of 2016, it was the state's second-largest public university by enrollment. It is Carnegie Classification of Institutions of Higher Education, classified among "R1: Doctoral Universities – Very high r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphid
Aphids are small sap-sucking insects in the Taxonomic rank, family Aphididae. Common names include greenfly and blackfly, although individuals within a species can vary widely in color. The group includes the fluffy white Eriosomatinae, woolly aphids. A typical life cycle involves flightless females giving Viviparity, live birth to female Nymph (biology), nymphs—who may also be already Pregnancy, pregnant, an adaptation scientists call telescoping generations—without the involvement of males. Developmental biology, Maturing rapidly, females breed profusely so that the number of these insects multiplies quickly. Alate, Winged females may develop later in the season, allowing the insects to colonize new plants. In Temperate climate, temperate regions, a phase of sexual reproduction occurs in the autumn, with the insects often overwintering as eggs. The life cycle of some species involves an alternation between two species of host plants, for example between an annual crop and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysanthemum Leaf Miner
''Chromatomyia syngenesiae'', the ragwort leaf miner or chrysanthemum leaf miner, also known by the synonym ''Phytomyza syngenesiae'', is a Palaearctic fly, also present in Australia and New Zealand, with larvae that make leaf mines in ''Senecio ''Senecio'' is a genus of flowering plants in the daisy family (Asteraceae) that includes ragworts and groundsels. Variously circumscribed taxonomically, the genus ''Senecio'' is one of the largest genera of flowering plants. Description Mo ...'' species and other related herbaceous daisies. References Agromyzidae Diptera of Europe Insects described in 1849 {{opomyzoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Stem
A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaf, leaves, flowers and fruits, transports water and dissolved substances between the roots and the shoots in the xylem and phloem, engages in photosynthesis, stores nutrients, and produces new living tissue. The stem can also be called the culm, halm, haulm, stalk, or thyrsus. The stem is normally divided into nodes and internodes: * The nodes are the points of attachment for leaves and can hold one or more leaves. There are sometimes axillary buds between the stem and leaf which can grow into branches (with leaf, leaves, conifer cones, or inflorescence, flowers). Adventitious roots (e.g. brace roots) may also be produced from the nodes. Vines may produce tendrils from nodes. * The internodes distance one node from another. The term "Shoot (botany), shoots" is often confused with "stems"; "shoots" generally refers to new fresh plant growth, including both stems and other str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sand
Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is usually defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass. The composition of sand varies, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide, or SiO2), usually in the form of quartz. Calcium carbonate is the second most common type of sand. One such example of this is aragonite, which has been created over the past 500million years by various forms of life, such as coral and shellfish. It is the primary form of sand apparent in areas where reefs have dominated the ecosystem for millions of years, as in the Caribbean. Somewhat more rarely, sand may be composed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Mould
Leaf mold (spelled leaf mould outside of the United States) is the compost produced by decomposition of shaded deciduous shrub and tree leaves, primarily by fungal breakdown in a slower, cooler manner as opposed to the bacterial degradation of leaves. Description Leaves shed in autumn tend to have a very low nitrogen content and are often dry. Their main constituents, cellulose and lignin, are two recalcitrant molecules resistant to degradation. Because of this, autumn leaves break down far more slowly than most other compost ingredients which may take a very long time on their own. Specialised biota, such as molds, produce extracellular enzymes which can easily break down those complex plant polymers(cellulose, lignin and hemicellulose) into biologically accessible forms enriching the soil environment. The importance of this decomposition of the leaves and other shed plant litter is that their degradation and decomposition forms a critical step in the mineralization of organic n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loam
Loam (in geology and soil science) is soil composed mostly of sand (particle size > ), silt (particle size > ), and a smaller amount of clay (particle size < ). By weight, its mineral composition is about 40–40–20% concentration of sand–silt–clay, respectively. These proportions can vary to a degree, however, and result in different types of loam soils: sandy loam, silty loam, clay loam, sandy clay loam, silty clay loam, and loam. In the USDA, United States Department of Agriculture, soil texture, textural classification triangle, the only soil that is not predominantly sand, silt, or clay is called "loam". Loam soils generally contain more nutrients, moisture, and humus than sandy soils, have better drainage and infiltration of water and air than silt- and clay-rich soils, and are easier to tillage, till than clay soils. In fact, the primary definition of loam in most dictionaries is soils containing hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soil
Soil, also commonly referred to as earth, is a mixture of organic matter, minerals, gases, water, and organisms that together support the life of plants and soil organisms. Some scientific definitions distinguish dirt from ''soil'' by restricting the former term specifically to displaced soil. Soil consists of a solid collection of minerals and organic matter (the soil matrix), as well as a porous phase that holds gases (the soil atmosphere) and water (the soil solution). Accordingly, soil is a three- state system of solids, liquids, and gases. Soil is a product of several factors: the influence of climate, relief (elevation, orientation, and slope of terrain), organisms, and the soil's parent materials (original minerals) interacting over time. It continually undergoes development by way of numerous physical, chemical and biological processes, which include weathering with associated erosion. Given its complexity and strong internal connectedness, soil ecologists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seed
In botany, a seed is a plant structure containing an embryo and stored nutrients in a protective coat called a ''testa''. More generally, the term "seed" means anything that can be Sowing, sown, which may include seed and husk or tuber. Seeds are the product of the ripened ovule, after the embryo sac is fertilization, fertilized by Pollen, sperm from pollen, forming a zygote. The embryo within a seed develops from the zygote and grows within the mother plant to a certain size before growth is halted. The formation of the seed is the defining part of the process of reproduction in seed plants (spermatophytes). Other plants such as ferns, mosses and marchantiophyta, liverworts, do not have seeds and use water-dependent means to propagate themselves. Seed plants now dominate biological Ecological niche, niches on land, from forests to grasslands both in hot and cold climates. In the flowering plants, the ovary ripens into a fruit which contains the seed and serves to disseminate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
