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Horned Melon
''Cucumis metuliferus'', commonly called the African horned cucumber (shortened to horned cucumber), horned melon, spiked melon, jelly melon, or kiwano, is an annual vine in the cucumber and melon family Cucurbitaceae. Its fruit has horn-like spines, hence the name "horned melon". The ripe fruit has orange skin and lime-green, jelly-like flesh. ''C. metuliferus'' is native to Southern Africa, in South Africa, Namibia, Botswana, Zambia, Malawi, Zimbabwe, Mozambique, and Angola. Consumption and other uses Kiwano is a traditional food plant in Africa. Along with the gemsbok cucumber ('' Acanthosicyos naudinianus'') and ''tsamma'' ( citron melon), it is one of the few sources of water during the dry season in the Kalahari Desert. ''Parc de Khal-agadi, pas si désert'', in Science & Vie n° 1130, November 2011, pp. 18–21. In northern Zimbabwe, it is called ''gaka'' or ''gakachika'', and is primarily used as a snack or salad, and rarely for decoration. It can be eaten at an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vine
A vine is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas, or runners. The word ''vine'' can also refer to such stems or runners themselves, for instance, when used in wicker work.Jackson; Benjamin; Daydon (1928). ''A Glossary of Botanic Terms with their Derivation and Accent'', 4th ed. London: Gerald Duckworth & Co. In parts of the world, including the British Isles, the term "vine" usually applies exclusively to grapevines, while the term "climber" is used for all climbing plants. Growth forms Certain plants always grow as vines, while a few grow as vines only part of the time. For instance, poison ivy and bittersweet can grow as low shrubs when support is not available, but will become vines when support is available. A vine displays a growth form based on very long stems. This has two purposes. A vine may use rock exposures, other plants, or other supports for growth rather than investing energy in a lot of supportive tissu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratification (seeds)
In horticulture, stratification is a process of treating seeds to simulate natural conditions that the seeds must experience before germination can occur. Many seed species have an embryonic dormancy phase and generally will not sprout until this dormancy is broken. The term stratification can be traced back to at least 1664 in John Evelyn's ''Sylva, or A Discourse of Forest-Trees and the Propagation of Timber'', where seeds were layered (stratified) between layers of moist soil and the strata were exposed to winter conditions. Thus, stratification became the process by which seeds were artificially exposed to conditions to encourage germination. Cold stratification Cold stratification is the process of subjecting seeds to both cold and moist conditions. Seeds of many trees, shrubs and perennials require these conditions before germination will ensue. In the wild, seed dormancy is usually overcome by the seed spending time in the ground through a winter period and having its har ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Purdue University
Purdue University is a Public university#United States, public Land-grant university, land-grant research university in West Lafayette, Indiana, United States, and the flagship campus of the Purdue University system. The university was founded in 1869 after Lafayette, Indiana, Lafayette businessman John Purdue donated land and money to establish a college of science, technology, and agriculture; the first classes were held on September 16, 1874. Purdue University is a member of the Association of American Universities and is Carnegie Classification of Institutions of Higher Education, classified among "R1: Doctoral Universities – Very high research activity". Purdue enrolls the largest student body of any individual university campus in Indiana, as well as the ninth-largest foreign student population of any university in the United States. The university is home to the oldest computer science Purdue University Department of Computer Science, program in the United States. Pur ... [...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] |
Greenhouse Whitefly
''Trialeurodes vaporariorum'', commonly known as the glasshouse whitefly or greenhouse whitefly, is an insect that inhabits the world's temperate regions. Like various other whiteflies, it is a primary insect pest of many fruit, vegetable and ornamental crops. It is frequently found in glasshouses (greenhouses), polytunnels, and other protected horticultural environments. Adults are 1–2 mm in length, with yellowish bodies and four wax-coated wings held near parallel to the leaf surface. Life cycle Females are capable of mating less than 24 hours after emergence and most frequently lay their eggs on the undersides of leaves. Eggs are pale yellow in colour, before turning grey prior to hatching. Newly hatched nymphs, often known as crawlers, are the only mobile immature life-stage. During the first and second nymph instars, the appearance is that of a pale yellow/translucent, flat scale which can be difficult to distinguish with the naked eye. During the fourth and final ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fusarium Wilt
Fusarium wilt is a common vascular wilt fungal disease, exhibiting symptoms similar to Verticillium wilt. This disease has been investigated extensively since the early years of this century. The pathogen that causes Fusarium wilt is ''Fusarium oxysporum'' (''F. oxysporum'').Snyder, W.C. and Hansen, H.N. 1940. The species concept in Fusarium. Am. J. Bot. 27:64-67. The species is further divided into '' formae speciales'' based on host plant. Hosts and symptoms The fungal pathogen ''Fusarium oxysporum'' affects a wide variety of hosts of any age. Tomato, tobacco, legumes, cucurbits, sweet potatoes and banana are a few of the most susceptible plants, but it also infects other herbaceous plants. ''F. oxysporum'' generally produces symptoms such as wilting, chlorosis, necrosis, premature leaf drop, browning of the vascular system, stunting and damping-off. The most important of these is vascular wilt. Fusarium wilt starts out looking like vein clearing on the younger leaves and dro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squash Mosaic Virus
Squash mosaic virus (SqMV) is a mosaic virus disease common in squash plants and other plants, including melons, of the family Cucurbitaceae. It occurs worldwide. It is transmitted primarily by beetles, including the leaf beetle ('' Acalymma trivittata''), spotted cucumber beetle (''Diabrotica undecimpunctata''), and 28-spotted ladybird beetle ('' Henosepilachna vigintioctopunctata''), as well as some other beetles. Plants are infected by the saliva expelled by the beetles as they feed upon the plant. The beetles acquire the virus by feeding upon an infected plant and can retain the virus in their bodies for up to 20 days. Unlike some other mosaic viruses that infect squashes, SqMV is not spread by aphids. In melons it can be spread by seeds. The results are dark green mosaic, blistering, vein clearing, yellowing of leaves, and hardening. Symptoms include "pronounced chlorotic mottle, green veinbanding, and distortion of leaves". Fruits of infected plants are also affected, becomin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watermelon Mosaic Virus
''Watermelon mosaic virus'' (WMV) also known as Marrow mosaic virus (Raychaudhuri and Varma, 1975; Varma, 1988), Melon mosaic virus (Iwaki et al., 1984; Komuro, 1962), and until recently Watermelon mosaic virus type 2 (WMV-2), is a plant pathogenic virus that causes viral infection (sometimes referred to as watermelon Mosaic disease) in many different plants. The virus itself is referred to as Watermelon Mosaic Virus II or WMV-2 and is an isolate of the U.S. WMV-2 is a ssRNA positive strand virus that is part of the Potyviridae or Potyvirus clade. Like all RNA viruses, it contains a protein capsid which protects the inner viral RNA. First described on squash in Florida, WMV arose from a unique recombination of genetic material contributed by ''Soybean mosaic virus (SMV)'' and ''Bean common mosaic virus (BCMV)'' along with ''Peanut Stripe virus (PSV)''. Biology WMV is a potyvirus whose particles are 760 nm long flexuous rods which has a single strand of RNA. This particular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accession Number (bioinformatics)
An accession number, in bioinformatics, is a unique identifier given to a DNA or protein sequence record to allow for tracking of different versions of that sequence record and the associated sequence over time in a single data repository. Because of its relative stability, accession numbers can be utilized as foreign keys for referring to a sequence object, but not necessarily to a unique sequence. All sequence information repositories implement the concept of "accession number" but might do so with subtle variations. LRG Locus Reference Genomic (LRG) records have unique accession numbers starting with LRG_ followed by a number. They are recommended in thHuman Genome Variation Society Nomenclature guidelinesas stable genomic reference sequences to report sequence variants in LSDBs and the literature. Notes and references # # External links * {{cite web , title=Sample GenBank Record , website=National Center for Biotechnology Information , date=2021-01-12 , url=https:/ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Root-knot Nematodes
Root-knot nematodes are plant-parasitic nematodes from the genus ''Meloidogyne''. They exist in soil in areas with hot climates or short winters. About 2000 species of plants worldwide are susceptible to infection by root-knot nematodes and they cause approximately 5% of global crop loss. Root-knot nematode larvae infect plant roots, causing the development of root-knot galls that drain the plant's photosynthate and nutrients. Infection of young plants may be lethal, while infection of mature plants causes decreased yield. Economic impact Root-knot nematodes (''Meloidogyne'' spp.) are one of the three most economically damaging genera of plant-parasitic nematodes on horticultural and field crops. Root-knot nematodes are distributed worldwide, and are obligate parasites of the roots of thousands of plant species, including monocotyledonous and dicotyledonous, herbaceous and woody plants. The genus includes more than 90 species, with some species having several races. Four ''Meloid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Society For Horticultural Science
The American Society for Horticultural Science (ASHS) is a professional society for horticultural science based in Alexandria, Virginia. Founded in 1903, the mission of ASHS is to promote and encourage national and international interest in scientific research and education in horticulture in all its branches. The more than 4800 ASHS members in all 50 states and 60 countries around the world fulfill this mission by sharing the results of their research, teaching, extension, and community engagement activities with their colleagues and humankind the world over. The members of ASHS are researchers, teachers, industry leaders, extension educators, and graduate and undergraduate students. They work at universities, in government, and in industry. They provide the research that keeps the production of our horticultural crops (ex. fruit, nut, vegetable, turf, and ornamental crops) competitive and allows them to be raised sustainably. They help rural economies develop and institute profita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
