1. a flattened structure of a higher plant, typically green and blade-like, that is attached to a stem directly or via a stalk. Leaves are the main organs of photosynthesis and transpiration: "many of the trees had lost their leaves" Similar frond flag needle pad blade bract leaflet technical: cotyledon foliole any of a number of plant structures similar to leaves, e.g. bracts, sepals, and petals.

leaf-area index: the total area of leaves (one side) in relation to the ground area below them.

Complete leaf defoliation or defoliating three-quarters and half of each leaf at this critical stage reduced plant height, decreased shoot dry weight, branch number and leaf area index of okra. Guava is deciduous, with complete leaf loss occurring generally in Nov with new growth beginning in Mar in the study area.

Leaf area index (LAI) is a dimensionless quantity that characterizes plant canopies. It is defined as the one-sided green leaf area per unit ground surface area (LAI = leaf area / ground area, m 2 / m 2) in broadleaf canopies. In conifers, three definitions for LAI have been used: Half of the total needle surface area per unit ground surface area

Category filter: Show All (27)Most Common (0)Technology (5)Government & Military (7)Science & Medicine (7)Business (2)Organizations (8)Slang / Jargon (1) Acronym Definition LAI Leaf Area Index LAI Logic and Artificial Intelligence LAI Lean Aerospace Initiative LAI Lean Advancement Initiative (MIT) LAI Local Area Identity LAI Location Area Identify LAI ...

The analysis of the parameters that predetermine temperature changes in the plant leaf was started from the impact of initial difference of temperatures between the leaf surface and the environment ([t.sub.0] - [t.sub.apl]) on value [DELTA]t.

Leaf Area Index is a method of forest measurement of leaf area in a given section of ground area expressed in terms of half the square meters of leaf per square meter of ground. [1] LAI ranges from 0 (bare ground) to over 10 (dense conifer forests).

Leaf area index (LAI), one half the total green leaf area per unit horizontal ground surface, is an important structural property of vegetation. Because leaf surfaces are the primary border of energy and mass exchange, important processes such as canopy interception, evapotranspiration, and gross photosynthesis are directly proportional to LAI.

In case of an arc-auxanometer (see picture), there is a wire fixed with the plant apex on one end and a dead-weight on the other. It passes over a pulley which has a pointer attached to it. When the plant's height increases, the pulley rotates and the pointer moves on a circular scale to directly give the magnitude of growth. [2] The "rate of growth" is a derived measurement obtained by ...

For the theoretical analysis of the change of plant leaf temperature depending on a leaf position with respect to the source of the radiation energy, the following values of parameters were assumed for calculations: heat transfer coefficient [alpha] = 0.00125 J/(s x [cm.sup.2] x K); specific thermal capacity of the plant leaf c = 3.58 J/(g x K); density p = 0.9 g/[cm.sup.3]; coefficient ...

This article is within the scope of WikiProject Forestry, a collaborative effort to improve the coverage of the profession and science of forestry on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks. Start This article has been rated as Start-Class on the project's quality scale.

The mission objectives are determined by the investigation and analysis of vegetation from space by means of new methods and technologies. It should support the study of the relationship between the vegetation index, the reflectance factors, the leaf area index, the photosynthesis, the vegetation condition, the atmospheric influence under different illumination and seasonal conditions.

WikiMili The Free Encyclopedia. Hemispherical photography ... as well as to estimate aspects of canopy structure such as leaf area index. Detailed treatments of field and analytical methodology have been provided by Paul Rich (1989, 1990) and Robert Pearcy (1989).

definition. The specific leaf area is defined as the quotient of leaf area and dry mass: SLA = A / m The youngest fully developed is used for calculation of the leaf area often leaf used and directly after the harvest measured (z. B. scan).The dry matter is measured on the same sheet after it …

A leaf (plural leaves) is the principal lateral appendage of the vascular plant stem, usually borne above ground and specialized for photosynthesis.The leaves, stem, flower and fruit together form the shoot system. Leaves are collectively referred to as foliage, as in "autumn foliage". In most leaves, the primary photosynthetic tissue, the palisade mesophyll, is located on the upper side of ...

leaf-area ratio The photosynthetic surface area per unit dry weight of a plant. It is a measure of the efficiency with which a plant deploys its photosynthetic resources. Typically, it is increased by low light intensities. Source for information on leaf-area ratio: A Dictionary of Ecology dictionary.

Specific leaf area is defined as the leaf area to dry mass. [1] [2] [3] Application. Specific leaf area can be used to estimate the reproductive strategy of a particular plant based upon light and moisture (humidity) levels, among other factors [4] See also. Canopy (biology) Hemispherical photography; Leaf Area Index; LiDAR; Photosynthetically ...

From Wikipedia the free encyclopedia ... This article is the index of forestry topics.

Copernicus is the European program for monitoring the Earth. It consists of a set of complex systems that collect data from satellites and in-situ sensors, process this data and provide users with reliable and up-to-date information on a range of environmental and security issues.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased. Variegation, Leaf the uneven coloring of leaves, forming a unique design. Variegation may depend on such anatomic features as the formation of pneumatic cavities under the epidermis (imparting to the leaf a silvery coloring), the uneven ...

Define leaf-book. leaf-book synonyms, leaf-book pronunciation, leaf-book translation, English dictionary definition of leaf-book. Noun 1. leaf-book - an unbound manuscript of some ancient classic codex holograph, manuscript - handwritten book or document Based on WordNet 3.0, Farlex...

Leaf area index (LAI) is an indicator of the size of assimilatory surface of a crop. The analysis of 2 years of pooled data of both locations (Location-I and Location-II) regarding leaf area index given in Table 21.8 revealed that the cane LAI was significantly affected by different ASMD levels than by different planting patterns. The maximum ...

Leaf Wilderness. In 1984, 994 acres (4 km 2) of the Leaf River Wildlife Management Area in southwestern Greene County were designated wildeAlmost the entire Leaf Wilderness consists of meandering sloughs, oxbow lakes, and spruce-pine forest or oak-gum-cypress river bottom. Loblolly and shortleaf pines are found in abundance, with a dense understory of dogwood, redbud, persimmon, …

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Define leaf blade. leaf blade synonyms, leaf blade pronunciation, leaf blade translation, English dictionary definition of leaf blade. Noun 1. leaf blade - especially a leaf of grass or the broad portion of a leaf as distinct from the petiole blade foliage, leaf, leafage - the main organ of...

A lai (or lay lyrique, "lyric lay", to distinguish it from a lai breton) is a lyrical, narrative poem written in octosyllabic couplets that often deals with tales of adventure and romance.Lais were mainly composed in France and Germany, during the 13th and 14th centuries. The English term is a 13th-century loan from Old French lai.The origin of the French term itself is unclear; perhaps it is ...

Leaf area index (LAI), leaf area per unit ground area, is a key measure used to understand and compare plant canopies. It is also taller than the understory layer. The canopy holds 90% of the animals in the rainforest.

Leaf area index (LAI), leaf area per unit ground area, is a key measure used to understand and compare plant canopies. The canopy is taller than the understory layer. The canopy holds 90% of the animals in the rainforest. They cover vast distances and …

Definition of leaf through in the Idioms Dictionary. leaf through phrase. What does leaf through expression mean? ... Wikipedia Encyclopedia. Tools. A; A; A; A; Language: Mobile Apps: apple ... leaf-area index; leaf-book; leaf-climber; leaf-cutter; Leaf-cutter ant; Leaf-cutter ants; leaf-cutter bee;

Abortion - Simple English Wikipedia, the free encyclopedia " Reproductive Endocrinology and Infertility: Recurrent Pregnancy Loss (Recurrent Miscarriage)." (n.d.) Retrieved from ...

Etta Lemon (1860–1953) was a British conservationist and a founder of what is now the Royal Society for the Protection of Birds (RSPB). Born into an evangelical family in Kent, she became a campaigner against the use of plumage in hatmaking.She co-founded the Fur, Fin and Feather Folk in 1889, which two years later merged with Emily Williamson's Society for the Protection of Birds, and ...

leaf-area duration: the LEAF-AREA INDEX over a period of time. Due to the leaf-area duration changing with time, it is proportional to the area under the line on a graph of leaf-area index …

Flowering plants are members of the clade Angiospermae (/ ˌ æ n dʒ i ə ˈ s p ɜːr m i /), commonly called angiosperms. The term "angiosperm" is derived from the Greek words angeion ('container, vessel') and sperma ('seed'), and refers to those plants that produce their seeds enclosed within a fruit.They are the most diverse group of land plants with 64 orders, 416 families, approximately ...

Category filter: Show All (27)Most Common (0)Technology (5)Government & Military (7)Science & Medicine (7)Business (2)Organizations (8)Slang / Jargon (1) Acronym Definition LAI Leaf Area Index LAI Logic and Artificial Intelligence LAI Lean Aerospace Initiative LAI Lean Advancement Initiative (MIT) LAI Local Area Identity LAI Location Area Identify LAI ...

A leaf is an above-ground plant organ and it is green. Its main functions are photosynthesis and gas exchange. A leaf is often flat, so it absorbs the most light, and thin, so that the sunlight can get to the chloroplasts in the cells. Most leaves have …

leaf·let / ˈlēflit / • n. 1. a printed sheet of paper, sometimes folded, containing information or advertising and usually distributed free. 2. Bot. each of the leaflike structures that together make up a compound leaf, such as in the ash and horse chestnut. ∎ (in general use) a young leaf. • v. (-let·ed, -let·ing) [tr.] distribute leaflets to (people or an area): I won't be ...

Leaf area index was estimated for each entry by dividing the leaf area of five randomly selected plants by the corresponding ground surface (i.e., five plants/seven plants [m.sup-2]). Quantitative genetic analysis of the physiological processes underlying maize grain yield

Within an area of [approximately equal to] 10 x 10 m, 16 of 32 selected, equally sized plants, were randomly chosen and defoliated on 2 June 1988, [approximately equal to]3 wk before the new leaf buds opened, and soon after the ground became free from snow.