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HEAD LEAVES [16 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2017-11-21

English

Subject field(s)
  • Grain Growing
DEF

A growth stage of grasses when the main stem begins to elongate.

CONT

Stem elongation or jointing occurs as a result of internode elongation. Usually a plant has about five to six leaves on the main shoot when internode elongation first begins. Throughout development, the lower four nodes remain in the crown. The fifth node may remain in the crown or be elevated slightly and nodes six and seven are generally elevated above the soil. The elongating internode is hollow between the crown and the elevated growing point, except in solid stem varieties. Rapid stem or internode elongation brings the developing head above the soil surface. Each elongating internode becomes progressively longer and eventually leads to head emergence.

CONT

For corn, growth was determined as elongation of the sixth leaf blade.

French

Domaine(s)
  • Culture des céréales
DEF

Première phase de développement visible [...] de l'élongation des entre-nœuds de la tige chez les graminées.

OBS

Chez les graminées, elle [la montaison] est caractérisée par l'élongation, d'abord lente, puis de plus en plus rapide, des entre-nœuds de la tige principale et des talles. Cette élongation s'accompagne de la différenciation et du grossissement des inflorescences qui montent dans les gaines foliaires. La montaison se termine à la fécondation.

OBS

Stade phénologique des graminées, élongation de la tige principale porte-graine.

Spanish

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Record 2 2017-04-21

English

Subject field(s)
  • Botany
  • Vegetable Crop Production
Universal entry(ies)
Lactuca sativa var. asparagina
Latin
Lactuca sativa var. angustana
Latin
CONT

A comparatively new vegetable in the U. S., celtuce has been grown in China for many years. This type has an enlarged stem and no head. The leaves are not palatable, as those of other types, except possibly while they are young and tender. It is grown principally for its large, fleshy stems which are peeled and eaten raw or cooked. Its flavor is a combination of celery and lettuce, from which it derives its name.

OBS

Stem lettuce is an ingredient of many Chinese dishes. Celtuce is the only variety offered for sale in the United States.

French

Domaine(s)
  • Botanique
  • Production légumière
Entrée(s) universelle(s)
Lactuca sativa var. asparagina
Latin
Lactuca sativa var. angustana
Latin
CONT

Laitue celtuce [...] Variété ressemblant à un croisement de céleri et de laitue, cultivée en Chine pour sa tige au cœur tendre. Les feuilles peuvent aussi être consommées à l'instar de la laitue lorsqu'elles sont encore jeunes. Quand la tige atteint entre 30 et 45 cm de longueur, on la coupe et on retire la pelure. Le cœur de la tige est ensuite consommé frais, tel quel ou en salade - ou encore cuit, comme on le fait en Chine. Saveur de laitue-concombre.

OBS

On écrirait mieux «cèleri».

OBS

cèleri : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004).

Spanish

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Record 3 2017-02-03

English

Subject field(s)
  • Seed Plants (Spermatophyta)
Universal entry(ies)
Schinus molle
Latin
DEF

A Peruvian evergreen tree(Schinus molle) with broad rounded head, graceful pinnate leaves, and panicles of greenish flowers succeeded by small red drupes.

French

Domaine(s)
  • Plantes à graines (Spermatophyta)
Entrée(s) universelle(s)
Schinus molle
Latin
DEF

Petit arbre, Schinus molle, [...]. On lui donne aussi le nom de faux poivrier, à cause de la saveur piquante de ses fruits. Sa tige laisse exsuder par incision un suc résineux, le mastic d'Amérique, ou résine de mollé, employé ou Pérou et au Chili comme masticatoire. Il est souvent cultivé comme ornement dans le midi de la France. (Famille des térébinthacées).

Spanish

Save record 3

Record 4 2016-05-10

English

Subject field(s)
  • Botany
  • Vegetable Crop Production
  • Forage Crops
Universal entry(ies)
Leucaena leucocephala
Latin
DEF

A small tree with finely divided, light green, bipinnate leaves. The leaflets, about 15 pairs, are 1-1. 5 cm. long, opposite, asymmetrical and slightly curved. The flowering heads grow in clusters from branch ends. The individual flowers are white, the head turning brown as it matures. The pods are flat, about 15 cm. long, green when immature, turning brown with age. The oval seeds are flat and glossy.

French

Domaine(s)
  • Botanique
  • Production légumière
  • Culture des plantes fourragères
Entrée(s) universelle(s)
Leucaena leucocephala
Latin
DEF

Originaire du Mexique et du nord de l'Amérique Centrale, cette plante est maintenant largement naturalisée sous les tropiques. C'est un arbuste de 0,8 à 5 mètres, aux jeunes rameaux finement poilus. Les feuilles alternes sont pari-bipennées. Les petites fleurs blanches forment des glomérules suivies de gousses plates marron. Cette plante est souvent utilisée comme fourrage pour les animaux, mais elle renferme de la mimosine, acide aminé qui provoque à la longue la chute du poil des ruminants et peut leur faire développer un goitre si consommée en excès.

Spanish

Campo(s) temático(s)
  • Botánica
  • Producción hortícola
  • Cultivo de plantas forrajeras
Entrada(s) universal(es)
Leucaena leucocephala
Latin
CONT

La leucaena (Leucaena leucocephala) es una leguminosa que puede alcanzar hasta 20 m de altura; pero cuando se utiliza como forraje debe tener una altura menor de tres metros. Tiene una raíz profunda y pivotante, por lo tanto soporta la sequía. Las hojas son bipinnadas con numerosas pínulas. Los flores son blancas y conforman una inflorescencia globular y su fruto es alargado y plano. Las semillas son de color marrón brillante comprimidas y elípticas, presentan buena viabilidad, y generalmente poseen latencia. El número de semillas por kilo es cercano a 20.000.

Save record 4

Record 5 2010-12-01

English

Subject field(s)
  • Seed Plants (Spermatophyta)
Universal entry(ies)
Pinus pinaster
Latin
CONT

Maritime pine. [West] Mediterranean Zone 7. 90 to 120 ft [feet], branches upsweeping; old trees with bare trunk and flat-domed head. Leaves paired, stiff, medium length, short-pointed. Male "flowers" abundant; female "flowers" on tips of expanding shoots, dull red. Cone small, dark olive-green ripening to orange-brown. Grows on sand. 50 ft. in 20 years.

OBS

A tree of the family Pinaceae.

French

Domaine(s)
  • Plantes à graines (Spermatophyta)
Entrée(s) universelle(s)
Pinus pinaster
Latin
CONT

Le pin maritime représente en France environ 1,5 million d'hectare de peuplements. C'est une espèce classiquement calcifuge. Sa rusticité lui permet de coloniser des sols sableux acides très pauvres.

OBS

Arbre de la famille des Pinaceae.

Spanish

Campo(s) temático(s)
  • Plantas con semilla (Spermatophyta)
Entrada(s) universal(es)
Pinus pinaster
Latin
OBS

Árbol de la familia pináceas, de corteza áspera, parduzca y a trechos rojiza, hojas muy largas y recias, y piñas grandes (15-18 cm) ... Su madera es la más rica en resina.

OBS

Distribución: costa del Mediterráneo central y occidental. Abunda en España, tanto en las costas mediterráneas como en las cantábrico atlánticas ... Se emplea mucho como árbol de repoblación forestal en distintas partes de Europa y en zonas reducidas de las Islas Británicas.

Save record 5

Record 6 2010-09-10

English

Subject field(s)
  • Insects, Centipedes, Spiders, and Scorpions
  • Animal Pests (Crops)
Universal entry(ies)
Trichoplusia ni
Latin
OBS

An insect of the family Noctuidae.

OBS

Adult cabbage loopers are mottled grayish-brown moths that have a distinctive silvery figure eight pattern on their forewings and a slight tuft of hair behind the head. The moth, with a wingspan of about 3. 8 cm is generally nocturnal but can sometimes be found resting on the underside of cabbage leaves during the day.

OBS

Not to be confused with "cabbage looper" which is the same insect but at the caterpillar stage of its life.

French

Domaine(s)
  • Insectes, mille-pattes, araignées et scorpions
  • Animaux nuisibles aux cultures
Entrée(s) universelle(s)
Trichoplusia ni
Latin
OBS

Insecte de la famille des Noctuidae.

CONT

Fausse-arpenteuse du chou. Les adultes de cette fausse-arpenteuse sont des papillons nocturnes tachetés d'un brun grisâtre. Leurs ailes antérieures sont ornées d'un motif argenté caractéristique en forme de «8», et une petite touffe de poils se dresse à l'arrière de la tête. Le papillon, dont les ailes déployées atteignent environ 3,8 cm, est généralement nocturne, mais on le retrouve parfois au repos sous les feuilles de choux pendant la journée.

OBS

fausse-arpenteuse du chou; fausse arpenteuse du chou : ces termes désignent aussi l'insecte au stade larvaire (chenille).

Spanish

Save record 6

Record 7 2008-05-12

English

Subject field(s)
  • Fruits and Vegetables (Types and Processing - Food Ind.)
DEF

A common vegetable in Galician, Chinese, Italian, and Portuguese cuisine [that] has many spiked leaves that surround a green bud which looks very similar to a small head of broccoli.

OBS

There may be small yellow flowers blooming from the buds, which are edible.

French

Domaine(s)
  • Fruits et légumes (Types et traitement - Alimentation)
DEF

Plante potagère originaire de la région méditerranéenne [qui] possède de longues tiges minces feuillues surmontées de fleurettes.

OBS

Les tiges, les feuilles, les boutons floraux et les fleurs du rapini sont comestibles.

Spanish

Save record 7

Record 8 2008-02-26

English

Subject field(s)
  • Fruits and Vegetables (Types and Processing - Food Ind.)
DEF

A variety of lettuce with a round head and tender, yellow and green leaves.

French

Domaine(s)
  • Fruits et légumes (Types et traitement - Alimentation)
CONT

La laitue Boston est très tendre et a un goût si peu prononcé, qu'elle devrait toujours être servie avec une vinaigrette douce.

Spanish

Campo(s) temático(s)
  • Frutas y verduras (Tipos y procesamiento - Ind. alimentaria)
Save record 8

Record 9 2007-11-01

English

Subject field(s)
  • Plant Diseases
  • Vegetable Crop Production
CONT

Downy Mildew of Cabbage. Caused by the fungus Peronospora parasitica. Damage occurs mostly to young plants or to exposed leaves of heading plants.

CONT

The fungus causing downy mildew of cabbage also attacks other crucifers, such as cauliflower, collards, Chinese cabbage, Brussels sprouts, broccoli, kale, and kohlrabi... The first symptoms of downy mildew are the formation of black specks and yellow-brown spots on the upper leaf surface, accompanied by the development of a fluffy mold growth on the lower surface. Young leaves may fall off when infected, and on older leaves, the spots may coalesce, producing large, sunken, tan spots. The disease can attack young seedlings or plants that have already headed. On older cabbage plants, the disease produces dark, sunken spots, which may appear purplish, on the head or wrapper leaves.

French

Domaine(s)
  • Maladies des plantes
  • Production légumière
CONT

Mildiou de la laitue et mildiou du chou. Ces mildious affectent surtout les jeunes plants sous châssis ou sous abris plastiques. Les feuilles extérieures présentent un jaunissement à leur face supérieure et un duvet blanchâtre se forme à leur face intérieure.

Spanish

Save record 9

Record 10 2006-04-25

English

Subject field(s)
  • Medical Instruments and Devices
  • Radiotherapy
DEF

A device used in radiotherapy for defining the shape of a treatment field.

CONT

A computerized tool called a multileaf collimator(MLC) is located in the head of the linear accelerator. The MLC is composed of 120 computer controlled tungsten leaves that shift to form specific patterns, blocking the radiation beams; this is performed according to the intensity profile generated from the treatment plan. MLC capability offers patients two unique advantages : precision... and speed.

French

Domaine(s)
  • Instruments et appareillages médicaux
  • Radiothérapie
DEF

Élément d'un accélérateur de radiothérapie constitué de nombreuses lames métalliques indépendantes commandées par un système informatique et permettant de délimiter des faisceaux d'irradiation de forme complexe.

Spanish

Save record 10

Record 11 2004-04-15

English

Subject field(s)
  • Plant Diseases
CONT

Tomato yellow leaf curl virus (TYLCV) is a whitefly-transmitted Geminivirus that has recently been found in Florida.

CONT

Tomato yellow leaf curl virus(TYLCV)... Leaf symptoms include chlorotic margins, small leaves which are cupped, thick and rubbery. Tops of infected plants may look like a head of broccoli.

French

Domaine(s)
  • Maladies des plantes
OBS

Virus de la tomate originaire des régions tropicales.

Spanish

Save record 11

Record 12 2000-08-14

English

Subject field(s)
  • Mammals
CONT

Phalanger. Common name applied to marsupial mammals of the family Phalangeridae, found in Australia, Tasmania, the Solomon Islands, the Moluccas, and Celebes. Members of the family have been introduced into New Zealand. Head and body length ranges from 16 to 65 cm(6 to 26 in), tail length from 17 to 61 cm(7 to 24 in). All the members of the family have five toes on each foot; each digit, except for the opposable innermost toe of the hind foot, has a large claw. Phalangers are nocturnal, arboreal animals that feed chiefly on fruit and leaves. Some species also feed on nectar, insects, and, occasionally, small birds.

French

Domaine(s)
  • Mammifères
DEF

Le phalanger est un marsupial arboricole aux mouvements lents. Il possède une queue préhensile et un régime alimentaire le plus souvent végétarien.

Spanish

Save record 12

Record 13 1997-01-15

English

Subject field(s)
  • Culture of Fruit Trees
Key term(s)
  • head leaf

French

Domaine(s)
  • Arboriculture fruitière
OBS

Endommagées par le vent.

Key term(s)
  • feuille de la pomme

Spanish

Save record 13

Record 14 1996-11-01

English

Subject field(s)
  • Residential Architecture
DEF

The head or crowning feature of a column, engaged column, pier or pilaster; the Corinthian order is characterized by a bell-shaped capital with scroll-shaped volutes and acanthus leaves.

French

Domaine(s)
  • Architecture d'habitation
DEF

Partie supérieure qui couronne le fût d'une colonne, d'une colonne fixée, d'un pilier ou d'un pilastre; l'ordre corinthien est caractérisé par un chapiteau en forme de cloche orné de volutes et de feuilles d'acanthes.

Spanish

Save record 14

Record 15 1990-01-08

English

Subject field(s)
  • Ovens, Furnaces and Boilers (Heating)
DEF

Low-boy arrangement with furnace and blower in separate compartments, and with air discharged upwards. Used for basement installation, but also usable with furnace closets located on the first story.

CONT

The basement or low-boy furnace is a variation of the upflow furnace and requires less head room. The blower is located beside the heat exchanger at the bottom. The air enters the top of the cabinet, is drawn down through the blower and discharged over the heat exchanger, and leaves vertically at the top.

French

Domaine(s)
  • Fours et chaudières (Chauffage)

Spanish

Save record 15

Record 16 1988-06-07

English

Subject field(s)
  • Fruits and Vegetables (Types and Processing - Food Ind.)
CONT

Butterhead lettuce... forms a soft, open head of buttery-textured leaves, with pale center hearts covered by darker green wrapper leaves.

French

Domaine(s)
  • Fruits et légumes (Types et traitement - Alimentation)
CONT

Laitue Merveille d'hiver (...). Variété au feuillage vert blond constituant une forte pomme bien protégée par les feuilles extérieures.

Spanish

Save record 16

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