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Rosa 'Zephirine Drouhin'
''Rosa'' 'Zephirine Drouhin' (or 'Zéphirine Drouhin') is a cherry-pink Bourbon rose, famous for being completely thornless. It was developed by French rose breeder Bizot in 1868. Its origin is unknown, although believed to be the outcome of a cross between a Boursault rose and a Hybrid Perpetual rose. The new rose cultivar was first introduced in Switzerland by the horticulturalist Charles Bonnet, who sold it under his own name in 1868. It was later introduced in Australia by Hazlewood Bros. Pty. Ltd. in before 1921 as 'Zéphirine Drouhin'. Description 'Zephirine Drouhin' is a tall, climbing Bourbon rose, in height, with a spread. It has a semi-double (17–25 petals) bloom form, and is carried singly or in small clusters on short stems. Bloom size is . Flower colour ranges from cherry-pink to a deep-rose pink. 'Zephirine Drouhin' is known for being one of the first and last roses to bloom, flowering abundantly and continually from June to the autumn. Flowers are very f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rose
A rose is either a woody perennial plant, perennial flowering plant of the genus ''Rosa'' (), in the family Rosaceae (), or the flower it bears. There are over three hundred Rose species, species and Garden roses, tens of thousands of cultivars. They form a group of plants that can be erect shrubs, climbing, or trailing, with stems that are often armed with sharp Thorns, spines, and prickles, prickles. Their flowers vary in size and shape and are usually large and showy, in colours ranging from white through pinks, reds, oranges and yellows. Most species are native to Asia, with smaller numbers native to Europe, North America, and Northwest Africa. Species, cultivars and hybrid (biology), hybrids are all widely grown for their beauty and often are fragrant. Roses have acquired cultural significance in many societies. Rose plants range in size from compact, miniature roses to climbers that can reach seven meters in height. Different species hybridize easily, and this has been use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bourbon Rose
Garden roses are predominantly Hybrid (biology), hybrid roses that are grown as ornamental plants in private or public gardens. They are one of the most popular and widely cultivated groups of flowering plants, especially in temperate climates. An enormous number of garden cultivars has been produced, especially over the last two centuries, though roses have been known in the garden for millennia beforehand. While most garden roses are grown for their flowers, often in dedicated rose gardens, some are also valued for other reasons, such as having ornamental fruit, providing ground cover, or for hedge, hedging. The cultivars are classified in a number of different and overlapping ways, generally without much reference to strict botany, botanical principles. Taking overall size and shape, the most common type is the bush rose, a rounded plant from 2 foot up to about 7 foot tall, above which height roses generally fall into the "'climbing and rambling'" class, the latter spreading wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller islands. It has a total area of , making it the list of countries and dependencies by area, sixth-largest country in the world and the largest in Oceania. Australia is the world's flattest and driest inhabited continent. It is a megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and Climate of Australia, climates including deserts of Australia, deserts in the Outback, interior and forests of Australia, tropical rainforests along the Eastern states of Australia, coast. The ancestors of Aboriginal Australians began arriving from south-east Asia 50,000 to 65,000 years ago, during the Last Glacial Period, last glacial period. By the time of British settlement, Aboriginal Australians spoke 250 distinct l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplocarpon Rosae
''Diplocarpon rosae'' is a fungus that creates the rose black spot disease. Because it was observed by people of various countries around the same time (around 1830), the nomenclature for the fungus varied with about 25 different names. The asexual stage is now known to be '' Marssonina rosae'', while the sexual and most common stage is known as ''Diplocarpon rosae''. ''Diplocarpon rosae'' grows over seasons as mycelia, ascospores, and conidia in infected leaves and canes. In the spring during moist, humid conditions, ascospores and conidia are wind-borne and rain-splashed to newly emerging leaf tissue. Diagnosis The black spots are circular with a perforated edge, and reach a diameter of . Badly affected plants, however, will not show the circular patterning, as they combine to cause a large, black mass. The common treatment of the disease is to remove the affected leaves and spray with antifungal solutions. Some stems of the roses may become affected if untreated, and will cau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Powdery Mildew
Powdery mildew is a fungus, fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of Ascomycota, ascomycete fungi in the order Erysiphales. Powdery mildew is one of the easier plant diseases to identify, as the signs of the causal pathogen are quite distinctive. Infected plants display white powdery spots on the leaves and stems. This mycelial layer may quickly spread to cover all of the leaves. The lower leaves are the most affected, but the mildew can appear on any above-ground part of the plant. As the disease progresses, the spots get larger and denser as large numbers of asexual spores are formed, and the mildew may spread up and down the length of the plant. Powdery mildew grows well in environments with high humidity and moderate temperatures; greenhouses provide an ideal moist, temperate environment for the spread of the disease. This causes harm to agricultural and horticultural practices where powdery mildew may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rust (fungus)
Rusts are fungal plant pathogens of the order Pucciniales (previously known as Uredinales) causing plant fungal diseases. An estimated 168 rust genera and approximately 7,000 species, more than half of which belong to the genus ''Puccinia'', are currently accepted. Rust fungi are highly specialized plant pathogens with several unique features. Taken as a group, rust fungi are diverse and affect many kinds of plants. However, each species has a range of hosts and cannot be transmitted to non-host plants. In addition, most rust fungi cannot be microbial culture, grown easily in pure culture. Most species of rust fungi are able to Heteroecious, infect two different plant hosts in different stages of their life cycle, and may produce up to five Morphology (biology), morphologically and cytologically distinct spore-producing structures viz., spermogonia, aecia, uredinium, uredinia, Telium, telia, and basidia in successive stages of reproduction. Each spore type is very host-specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semur-en-Auxois
Semur-en-Auxois () is a Communes of France, commune of the Côte-d'Or Departments of France, department in eastern France. The politician François Patriat, the engineers Edmé Régnier L'Aîné (1751–1825) and Émile Dorand (1866-1922), and the Encyclopédistes, Encyclopédiste Philippe Guéneau de Montbeillard (1720–1785) were born in Semur-en-Auxois, while the military engineer Sébastien Le Prestre de Vauban, Vauban (1633–1707) was educated at the Carmelite college. Semur-en-Auxois has a medieval core, built on a pink granite bluff more than half-encircled by the River Armançon. The river formerly provided motive power for tanneries and mills, but its flow is now somewhat reduced by the Lac de Pont. The dam was built upstream in the 19th century to provide water for the Canal de Bourgogne. Sport Semur-en-Auxois was the start of Stage 6 in the 2007 Tour de France. Population Sights *The church, La Collégiale Notre-Dame, was founded in 1225 and built in flamboyan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Côte-d'Or
Côte-d'Or () is a département in the Bourgogne-Franche-Comté region of Northeastern France. In 2019, it had a population of 534,124.Populations légales 2019: 21 Côte-d'Or INSEE Its is Dijon and subprefectures are Beaune and Montbard. History Côte-d'Or is one of the orig ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sport (botany)
In botany, a sport or bud sport, traditionally called ''lusus'', is a part of a plant that shows morphological differences from the rest of the plant. Sports may differ by foliage shape or color, flowers, fruit, or branch structure. The cause is generally thought to be chance genetic mutations in a single cell. Sports may also arise from stable changes in gene expression due to epigenetic modifications, including histone modification, DNA methylation, chromatin remodeling and RNA silencing. If the clonal descendants of a modified cell eventually form a meristem that gives rise to new plant parts, those may be of a new phenotype. Often only part of the meristem cells are affected, resulting in genetic chimerism in such sports. Horticulture Sports with desirable characteristics may be grown into new plants by vegetative reproduction and are often propagated as new cultivars that retain the characteristics of the new morphology. Such selections are often prone to "reversion", mea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
