Oryza sativa contains two major subspecies: the sticky, short-grained japonica or sinica variety, and the nonsticky, long-grained indica [zh] rice variety. Japonica was domesticated in the Yangtze Valley 9–6,000 years ago, and its varieties can be cultivated in dry fields (it is cultivated mainly submerged in Japan), in temperate East Asia, upland areas of Southeast Asia, and high elevations in South Asia, while indica was domesticated around the Ganges 8,500-4,500 years a… WebFeb 28, 2024 · bottle gourd, (Lagenaria siceraria), also called white-flowered gourd or calabash gourd, running or climbing vine of the gourd family (Cucurbitaceae), native to tropical Africa but cultivated in warm climates around the world for its ornamental and useful hard-shelled fruits. The young fruits are edible and are usually cooked as a …

Beta vulgaris - Wikipedia

Cultivated plant taxonomy is the study of the theory and practice of the science that identifies, describes, classifies, and names cultigens—those plants whose origin or selection is primarily due to intentional human activity. Cultivated plant taxonomists do, however, work with all kinds of plants in … See more Cultivated plant taxonomy has been distinguished from the taxonomy of other plants in at least five ways. Firstly, there is a distinction made according to where the plants are growing — that is, whether they are wild or … See more The history of cultigen nomenclature has been discussed by William T. Stearn and Brandenberg, Hetterscheid and Berg. It has also been examined from a botanical perspective and from the origin of the Cultivated Plant Code in 1953 until 2004. The early … See more Current challenges for cultivated plant taxonomists include: the use of large plant name databases; ways of dealing with the use of non-scientific names in commerce (known as trade designations), especially for plant labels in nurseries; intellectual property and … See more The key activities of cultivated plant taxonomy relate to classification (taxonomy) and naming (nomenclature). The rules associated with naming plants are separate from the methods, principles or purposes of classification, except that the units of … See more Recent concerns have focused on international communication on cultivated plant taxonomy, organisation of international symposia, and general communication on … See more Most cultigens have names consisting of a Latin name that is governed by the International Code of Nomenclature for algae, fungi, and plants e.g. Malus domestica, to which is added a cultivar epithet, enclosed in single quotes e.g. Malus domestica … See more • Domestication of plants • Horticultural botany • List of florilegia and botanical codices See more Webمریستم یا سرلاد (به انگلیسی: Meristem)، مجموعه یاخته‌های جنینی ساخته شده‌اند که تکثیرشان سریع است. چون تمایزیابی در مرحله طویل شدن یاخته رخ می‌دهد، یاخته‌های مریستمی همیشه به حالت مریستمی باقی می‌مانند و رشد نامحدود ... chimento insurance agency

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WebApr 5, 2024 · tomato, (Solanum lycopersicum), flowering plant of the nightshade family (Solanaceae), cultivated extensively for its edible fruits. Labelled as a vegetable for nutritional purposes, tomatoes are a good … WebIn botanical nomenclature, variety (abbreviated var.; in Latin: varietas) is a taxonomic rank below that of species and subspecies, but above that of form. [1] As such, it gets a three-part infraspecific name. It is sometimes recommended that the subspecies rank should be used to recognize geographic distinctiveness, whereas the variety rank is ... WebMusa × paradisiaca is the accepted name for the hybrid between Musa acuminata and Musa balbisiana.Most cultivated bananas and plantains are triploid cultivars either of this hybrid or of M. acuminata alone. Linnaeus originally used the name M. paradisiaca only for plantains or cooking bananas, but the modern usage includes hybrid cultivars used both … chimenti catherine md