Files are available under licenses specified on their description page. Gardeners can choose looseleaf varieties that do not form heads or grow iceberg lettuces that form a head of tightly overlapping leaves. Potentiating effects of lactuca sativa on pentobarbital. Starr1503260889 lactuca sativa several varieties in hydroponics greenhouse with kimtown sand islandmidway atoll 24640303483. University herbarium, university of california, 1001 valley life sciences bldg. It is characterized by considerable morphological and genetic variation. Department of agriculture agricultural research service. Lactuca sativa lettuce, garden lettuce pfaf plant database. Red leaf lettuce, health benefits and nutritional value. Batavia crop produc tivity under high tunnel conditions, with three levels of fertilization. The genus includes at least 50 species, distributed worldwide, but mainly in temperate eurasia its bestknown representative is the garden lettuce lactuca sativa, with its many varieties. One variety, the woju ts, or asparagus lettuce celtuce, is grown for. Pdf chemical constituents from seeds of lactuca sativa. Pdf effects of organic and inorganic fertilizers on lettuce.
Few salad vegetables exceed lettuce in popularity, and you should have little difficulty in growing it. Genus name comes from the latin word lac meaning milk in obvious reference to the milky plant sap. Plant in the spring or fall when temperatures are still cool lettuce bolts in warm. Lettuce lactuca sativa is the most important crop in the group of leafy vegetables. The hydroalcoholic extract hae of lettuce and its water fraction wf, ethyl acetate fraction eaf, and n butanol fraction nbf were administrated ip to mice 30 min. Lettuce lactuca sativa is an annual plant of the daisy family, asteraceae. Description of morphological characters of lettuce. Its bestknown representative is the garden lettuce lactuca sativa, with its many varieties. Lettuce types include romaine, butter head, iceberg, and loose leaf. However, it is not a legal authority for statutory or regulatory purposes. Algunos autores han atribuido a este alimento propiedades calmantes y sedantes. The record derives from tica data supplied on 20120211 which reports it as an accepted name record b4e03b98ee4e40129ec0828429990e8e with original publication details. This page was last edited on 15 august 2019, at 15.
Keep leaves dry in order to prevent powdery mildew and fungal infections 4. Classification apg iii 2009 regne plantae clade angiospermes clade dicotyledones vraies clade noyau des dicotyledones vraies clade asteridees clade campanulidees ordre asterales famille asteraceae genre lactuca espece lactuca sativa l. Lactuca sativa, lechuga propiedades medicinales botanical. A mild slightly sweet flavour with a crisp texture, lettuce is a very commonly used salad leaf and can also be cooked as a potherb or be added to soups etc. Ars germplasm resources information network lasa3 calphotos lasa3.
It is most often grown as a leaf vegetable, but sometimes for its stem and seeds. The hydroalcoholic extract hae of lettuce and its water fraction wf, ethyl acetate fraction eaf, and nbutanol fraction nbf were administrated ip to mice 30 min before the pentobarbital injection. While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in. A new flavonol glycoside with a rare structure type, lactucasativoside a 1, was isolated from the seeds of lactuca sativa, together with three known compounds, japonicin a 2, isoquercitrin 3. The name lactuca sativa is derived from the lactis, meaning milk. Lactuca, commonly known as lettuce, is a genus of flowering plants in the daisy family, asteraceae. Lettuce is most often used for salads, although it is also seen in other kinds of food, such as soups, sandwiches and wraps. The study was conducted at the locality of san felipe, in the municipality of pasto, narino, in a vitric haplustands soil. The present study was planned to investigate sleepprolonging effect of this plant. Romaine is the most upright growing of the four major types of lettuce. Pdf on dec 21, 2010, jesus antonio galvis vanegas and others published. How to grow lettuce lactuca sativa lettuce is an ideal crop for beginner growers and seed savers alike.
Lettuce grows readily because all cultivated strains were obtained originally from the prickly lettuce l. The crop comprises seven main groups of cultivars including oilseed lettuce differing phenotypically. Sinergismo entre azotobacter chroococcum y bradyrhizobium. Lettuce generally remains pestfree, although snails and slugs hide under the cover of darkness and chew leaves, weakening the plant. Lettuce is a globally important leafy vegetable with the united states being the largest world producers. Lettuce lactuca sativa l overview lettuce lactuca sativa l. This cylindricallyhearted lettuce known to the romans as cappadocian lettuce is now called roman lettuce or more commonly, romaine. Lechuga, lactuca sativa descripcion y propiedades medicinales.
Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Red leaf lettuce is a sweet and very delicately textured and flavored lettuce. Pdf effects of organic and inorganic fertilizers on. Wild lettuce commonly refers to the wildgrowing relatives of common garden lettuce. It is in flower from july to august, and the seeds ripen from august to september. The institute of food and agricultural sciences ifas is an equal opportunity institution authorized to provide research, educational information and other services only to individuals and institutions that function with nondiscrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. Reproduced from the series plant resources of southeast asia, by kind permission of the prosea foundation, bogor, indonesia. Traditionally, lactuca sativa lettuce has been recommended for its hypnotic property. Lactuca sativa in the germplasm resources information network grin, u. The species is hermaphrodite has both male and female organs and is pollinated by flies.
Success in producing a steady supply of fresh, crisp leaves, rich in vitamin a, depends to a great extent upon an understanding of the habits of this plant. Effects of organic and inorganic fertilizers on lettuce lactuca sativa l. The genus includes at least 50 species, distributed worldwide, but mainly in temperate eurasia. Fresh leaves are an excellent source of several vitamin a and beta carotenes as well as a rich source of vitamin k, vitamin c, and folates, while also containing lots of minerals like iron, calcium, magnesium, and potassium, which are very essential for body metabolism. Lactuca sativa laitue, salade, salade des jardins lactuca sativa laitue cultivee laitue pommee. The genome size has been estimated by flow cytometry to be 2. Lactuca sativa conesfa laboratorio poscosecha, ciaucr. A taxonomic species within the family asteraceae garden lettuce. All structured data from the file and property namespaces is available under the creative commons cc0 license. Growth, yield and quality response to nitrogen fertilization in a noncirculating hydroponic system, journal of plant nutrition, doi.