• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
CHARACTERIZATION AND IDENTIFICATION OF Origanum Spp
CHARACTERIZATION AND IDENTIFICATION OF Origanum Spp

... cies. During the last 150 years more than 300 names were given but only 70 are presently recognised as Origanum species, subspecies and hybrids. Plenthora of different names reflects the extent of morphological variation this genus exhibits in nature. Majority of the taxa are located in the Mediterr ...
June - the Scottish Rock Garden Club
June - the Scottish Rock Garden Club

... few champions but still, the habitat/ecology and collection and naming history of Cyclamen has been spotty. Inevitably, this has rendered the taxonomy a little mystifying. Cyclamen elegans is one of those real beauties in that most lovely genus of Cyclamen that people are most keen to grow. Despite ...
Growing Moringa for Personal or Community Use
Growing Moringa for Personal or Community Use

... found worldwide in the tropics and sub-tropics. It grows best in direct sunlight under 500 meters altitude. It tolerates a wide range of soil conditions, but prefers a neutral to slightly acidic (pH. 6.3-7.0), well-drained sandy or loamy soil. Minimum annual rainfall requirements are estimated at 25 ...
Shade - Cheyenne Botanic Gardens
Shade - Cheyenne Botanic Gardens

... mildew. The echinacea (cone flower) can also tolerate some partial shading and has a beautiful pink, daisy-like flower in late summer. Columbine grows well in shade but blooms best if it gets a little sun during the day. In many catalogs and books echinacea is listed for a sunny spot but it also doe ...
Japanese Chaff Flower - Invasive Plant Series
Japanese Chaff Flower - Invasive Plant Series

... perennial herb that can reach heights of 3-6 feet. It forms very dense stands (Fig. 1). Mature plants have extensive root systems supporting multiple stems. Chaff flower begins growing in late spring and flowers in late July. The leaves are simple, opposite, and the “arcing” venation is very similar ...
ECHOcommunity.org
ECHOcommunity.org

... new growth from root tubers, gac can be grown in areas with dry or cold seasons, as long as the growing season is long enough to form fruit. Gac can be propagated by seed, vine cuttings or root tubers. Seed can be destroyed with high heat, so avoid seeds from arils that have been dried at high tempe ...
garden topics - Jim Whiting Nursery
garden topics - Jim Whiting Nursery

... insect free from one year to the next. The cutting coleus are seldom tagged with their names, but are almost always sold as individual 41/2-inch plants or large tubs and baskets. If they are tagged, many of them have wonderful names like 'Duck's Foot', 'Pistachio Nightmare', 'Inky Fingers', 'Flirtin ...
Oncidium - Willgro
Oncidium - Willgro

... Oncidium is a diverse group of orchids with a contentious taxonomic history. Carolus Linnaeus first described these plants as part of the genus Epidendrum, which is related to Cattleya. Olof Swartz established the genus Oncidium late last century, separating the 2 genera. The genus Oncidium has unde ...
Seeded Plants
Seeded Plants

... • Living seed plants can be divided into two clades: gymnosperms and angiosperms • Gymnosperms appear early in the fossil record and dominated the Mesozoic terrestrial ecosystems • Gymnosperms were better suited than nonvascular plants to drier conditions • Today, cone-bearing gymnosperms called co ...
Plant Propagation
Plant Propagation

...  Seed is made after a pollen grain and an egg (ovum) have joined together in a flower  Seed is spread by bees and other insects in a process known as pollination  A Flower contains both the male and female sexual organs of a plant. ...
The guide (Power Point v. 97 presentation) - CLO-PLA
The guide (Power Point v. 97 presentation) - CLO-PLA

... Growth of Fragaria viridis, a species combining necessary and additive clonal growth organs. The short epigeogenous rhizome ("a" in the figure) is a necessary clonal growth organ (CGO) and above-ground horizontal rooting stem (stolon) is an additive CGO. The epigeogenous rhizome is formed by perenni ...
Campanula - Royal Horticultural Society
Campanula - Royal Horticultural Society

... Staking methods within the trial varied due to the differing habits of species. Twine wrapped around the plant and secured by bamboo cane worked well as an invisible method, as long as it was adjusted with plant growth. Birch twigs were used for shorter varieties to form a cage-like structure. Pest ...
invasive plants in the crown
invasive plants in the crown

... for weed infestations. Invasives out-compete native plants for water, soil nutrients, sunlight and space to grow. Once invasive plants become established, there are far-reaching consequences throughout the ecosystem for the native plant and wildlife communities. In a healthy plant community, various ...
Hydrangeas
Hydrangeas

... and has lobed leaves that resemble those of an oak tree. These turn a rich burgundy in the fall before they drop. The long panicles of flowers bloom white during the summer. This handsome, all-season plant grows in full sun to partial shade in moist well-drained soil. ...
Borreria
Borreria

... evidence of pathology that would have required knowledge of traditional medicines for the Tradição Nordeste. Araújo et al. (2000) found louse eggs on isolated hair shafts dating over 10,000 years ago. Repellents or delousing remedies would have reduced the annoyance of these parasites. Reinhard et a ...
new growers guide - Cotton Seed Distributors
new growers guide - Cotton Seed Distributors

... centre. A well consolidated bed is less likely to slump, and will allow more accurate seed placement, and lessen the likelihood of seed sinking when irrigation water is applied. Obviously, bed width is going to vary considerably between different farms. Most equipment would be set up to cater for th ...
Lyme Grass photos and ID
Lyme Grass photos and ID

... This plant is an ornamental grass native to Europe and Asia. It spreads primarily by underground stems (rhizomes), but also reproduces by seed. This grass can grow in most habitats, although it prefers well-drained sandy soil and full sun. It can handle extremes of heat and cold, and it is drought r ...
Leafy Spurge - Langlade County
Leafy Spurge - Langlade County

... taking more than its share of moisture and nutrients from the soil. It also appears to produce chemicals that interfere with the growth of other plant species. In natural areas, Leafy Spurge destroys wildlife habitat by displacing native grasses and forbs in only a few years after its introduction. ...
Cornus sericea L. redosier dogwood CORNACEAE Synonyms
Cornus sericea L. redosier dogwood CORNACEAE Synonyms

... 1989). Seeds do not germinate readily (can remain viable in seedbanks) and require cold stratification and sometimes scarification in order for germination to occur (Crane 1989). Fresh seed can be fall sown or stratified for 60 to 90 days at 5 ºC (Brinkman 1974). Acharya and others (1992) found tha ...
Beach False Foxglove (Agalinus fasciculata).
Beach False Foxglove (Agalinus fasciculata).

... opposite or whorled glossy green lance-shaped leaves. Fragrant flowers form large rounded ball with numerous stamens. Propagated through seeds and cuttings. An excellent nectar source. Buttonwood (Conocarpus erectus). Evergreen coastal tree to 60’ tall with alternate fuzzy ovoid light green leaves w ...
identifying northern utah`s flowering plants
identifying northern utah`s flowering plants

... immediately below and its partner, which will have the same number but may appear directly below the first or some distance (even pages) away. The keys presented here are based on those in Shaw’s Vascular Plants of Northern Utah, published by Utah State University Press., but they have been modified ...
Gymnosperms
Gymnosperms

... General characteristics: ...
S84 Diagnosing Wheat Production Problems in Kansas
S84 Diagnosing Wheat Production Problems in Kansas

... Preplant herbicide injury can cause emergence problems in certain cases. Some herbicides, such as Treflan and Fargo, cause these problems if used improperly and when cold, wet conditions follow planting. Treflan can cause a short, thickened coleoptile and stunted roots when wheat is planted directly ...
BEFORE YOU CUT: WHAT YOU NEED TO KNOW The secret to
BEFORE YOU CUT: WHAT YOU NEED TO KNOW The secret to

... Cut stems back to the top of the foliage after the flowers fade; smaller second flowers may sprout from the stem or near the ground; if not deadheaded birds will feast on the seeds ...
Confetti Glossy Abelia
Confetti Glossy Abelia

... significant and turn an outstanding burgundy in the fall. The fruit is not ornamentally significant. The stems are indian red but aren't particularly outstanding. ...
< 1 ... 43 44 45 46 47 48 49 50 51 ... 499 >

Plant ecology



This article is about the scientific discipline, for the journal see Plant EcologyPlant ecology is a subdiscipline of ecology which studies the distribution and abundance of plants, the effects of environmental factors upon the abundance of plants, and the interactions among and between plants and other organisms. Examples of these are the distribution of temperate deciduous forests in North America, the effects of drought or flooding upon plant survival, and competition among desert plants for water, or effects of herds of grazing animals upon the composition of grasslands.A global overview of the Earth's major vegetation types is provided by O.W. Archibold. He recognizes 11 major vegetation types: tropical forests, tropical savannas, arid regions (deserts), Mediterranean ecosystems, temperate forest ecosystems, temperate grasslands, coniferous forests, tundra (both polar and high mountain), terrestrial wetlands, freshwater ecosystems and coastal/marine systems. This breadth of topics shows the complexity of plant ecology, since it includes plants from floating single-celled algae up to large canopy forming trees.One feature that defines plants is photosynthesis. One of the most important aspects of plant ecology is the role plants have played in creating the oxygenated atmosphere of earth, an event that occurred some 2 billion years ago. It can be dated by the deposition of banded iron formations, distinctive sedimentary rocks with large amounts of iron oxide. At the same time, plants began removing carbon dioxide from the atmosphere, thereby initiating the process of controlling Earth's climate. A long term trend of the Earth has been toward increasing oxygen and decreasing carbon dioxide, and many other events in the Earths history, like the first movement of life onto land, are likely tied to this sequence of events.One of the early classic books on plant ecology was written by J.E. Weaver and F.E. Clements. It talks broadly about plant communities, and particularly the importance of forces like competition and processes like succession. Although some of the terminology is dated, this important book can still often be obtained in used book stores.Plant ecology can also be divided by levels of organization including plant ecophysiology, plant population ecology, community ecology, ecosystem ecology, landscape ecology and biosphere ecology.The study of plants and vegetation is complicated by their form. First, most plants are rooted in the soil, which makes it difficult to observe and measure nutrient uptake and species interactions. Second, plants often reproduce vegetatively, that is asexually, in a way that makes it difficult to distinguish individual plants. Indeed, the very concept of an individual is doubtful, since even a tree may be regarded as a large collection of linked meristems. Hence, plant ecology and animal ecology have different styles of approach to problems that involve processes like reproduction, dispersal and mutualism. Some plant ecologists have placed considerable emphasis upon trying to treat plant populations as if they were animal populations, focusing on population ecology. Many other ecologists believe that while it is useful to draw upon population ecology to solve certain scientific problems, plants demand that ecologists work with multiple perspectives, appropriate to the problem, the scale and the situation.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report