• Study Resource
  • Explore
    • 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
- The European Palm Society
- The European Palm Society

... of the available cold hardy palms, but the only two pinnate palms I can grow are Butia and Jubaea. Butia is a wonderful palm, but is slow, putting on about five leaves a year, whilst Jubaea (my favourite palm) as we all know puts on only two leaves a year in our climate and takes forever to reach an ...
Hydrilla verticillata - New Jersey Invasive Species Strike Team
Hydrilla verticillata - New Jersey Invasive Species Strike Team

... Photo: S. Kishbaugh ...
Empresa griega ofrece hojas de aloe vera Business p
Empresa griega ofrece hojas de aloe vera Business p

... offering the leaves of that particular kind of aloe. The offered type of aloe vera is featured by many medicinal and therapeutic properties. It is used by the world's largest pharmaceutical companies and among the largest companies in the field of beauty. The main activity of the company is the dedi ...
Canadian Journal of Botany 69
Canadian Journal of Botany 69

... plastic-covered greenhouse lacking environmental control. Plants were fertilized (100 mUpot) with half-strength Hoagland's nutrient solution (18) every week after germination. Pathogen growth conditions, plant inoculation, and pathogenicity tests Pathogens were cultivated and inoculum was prepared a ...
Light Environment Has Little Effect on
Light Environment Has Little Effect on

... Pasquet-Kok et al. 2010). Despite the genetic control of heteroblasty, recent studies indicate that heteroblastic responses can be modified by environmental conditions. For instance, both the trajectory and the timing of Acacia implexa’s heteroblastic development respond to nutritional and light stat ...
Effect of different media and sowing date on growth indexes of
Effect of different media and sowing date on growth indexes of

... in leave length in the late cultivated plants is their lack of generative growth (table 3). Based on the comparison of the related data mean, the average leaf width has changed after commencement of the new growth in the month of March and the most leaf width concerns the months of October or Novemb ...
Slugs and snails - Moorside Allotments Association
Slugs and snails - Moorside Allotments Association

... Organic methods are aimed at controlling numbers, and limiting the damage caused, rather than at eradicating all slugs and snails. Protection of vulnerable plants is the key for organic gardeners. There are many ways to reduce the numbers of these resilient and destructive pests. Try and clear an ar ...
Spiraea japonica with coloured leaves
Spiraea japonica with coloured leaves

... receive the Award of Garden Merit. This award (AGM ) indicates that the plant is recommended by the RHS for garden decoration. The plants are also the subject of scrutiny for their correct names, and are described in detail, photographed and specimens prepared for storage in the RHS Herbarium. ...
I. Fern Allies
I. Fern Allies

... though, the sexual reproduction of these plants results only in single-celled spores, rather than the complex structures known as seeds. This treatment of seedless vascular plants includes ferns, which of course have large, complex leaves (megaphylls), and fern allies, whose leaves are primitive (mi ...
Ethno medicinal plants used by gonds of Adilabad district, Andhra
Ethno medicinal plants used by gonds of Adilabad district, Andhra

... are socially and economically accepted. Still, one-third of the modern pharmaceutical preparations have botanical origin. International trade on medicinal plants is therefore increasing rapidly mainly as a result of intensified adoption of crude extracts for selfmedication by the general public in t ...
morphology of flowering plants
morphology of flowering plants

... the stem which serve as the origin and support of the other plant organs such as leaves, flowers, buds, fruits as well as seeds while the internodes is the area between two successive nodes. Stem being an extension of the nodal cells are thus exogenous in nature. The chief function of the stem is to ...
Rose Rosette Disease - OSU Fact Sheets
Rose Rosette Disease - OSU Fact Sheets

... in cultivated roses. There is no cure once a plant is infected. Growers have attempted to remove symptomatic canes by pruning, however pruning is often ineffective. The microscopic mites may remain on the plant and/or recently infected canes, which may not exhibit symptoms for many months or the vir ...
Photo: Sea spurge - Southern Tablelands and South Coast Noxious
Photo: Sea spurge - Southern Tablelands and South Coast Noxious

... control for small infestations but it is time consuming. Young plants are often easy to pull out if soil is moist. If soil is dry or plants are big you are likely to leave enough material in the ground for the plant to grow again. Some plants will recover unless every bit of the root system is remov ...
Nov – Dec 2006 - Bromeliad Society of Queensland
Nov – Dec 2006 - Bromeliad Society of Queensland

... (and others) collections. In this issue we have tried to ‘Do Our Bit’ by featuring a number of species in the images within the issue. The images are clearly labelled as species in the accompanying label. Apart from simply ensuring the survival of various species, the importance of species is that t ...
Key to the Families (pages 92 and 93) Modified with permission by
Key to the Families (pages 92 and 93) Modified with permission by

... 17 Leaves strictly basal or strongly basally disposed (the basal leaves the largest, and usually persistent for most of the growing season)…………………Key N. Herbaceous dicots with mainly basal leaves 17 Leaves cauline (if plant has basal leaves, they are not noticeably the largest, often senescing early ...
Easy-PEAsy seed germination
Easy-PEAsy seed germination

... The experiment could be continued after the five to seven day initial observation period to allow the students to study the effects of light. The seedlings they have germinated could be placed in compost-filled seed trays, pots or similar and grown on with adequate moisture and warmth, under either ...
AN UPDATE ON PLANT SPACE BIOLOGY Chris Wolverton1 and
AN UPDATE ON PLANT SPACE BIOLOGY Chris Wolverton1 and

... laboratory for the study of the fundamental processes underlying gravity perception and plant development. This microgravity environment also presents significant challenges for the cultivation of plants for biological life support systems and as a supplemental food source for astronauts. The goal o ...
STEROL METHYLTRANSFERASE 1 Controls the Level of
STEROL METHYLTRANSFERASE 1 Controls the Level of

... such as nystatin that disrupt the membranes, although the connection between nystatin resistance and the defect in ergosterol biosynthesis is not completely understood. The erg6 defect in ergosterol biosynthesis leads to a broad spectrum of phenotypes that can be attributed to a lack of membrane int ...
Diploid (2n)
Diploid (2n)

... Roots anchor plant; mycorrhizae (rootfungus associations) help absorb water and minerals from the soil. ...
Hold Back the Water - Supercomputing Challenge
Hold Back the Water - Supercomputing Challenge

... soluble vitamin E and adding them to the soil nutrients to produce a seed ‘packet’ that can be planted in drought conditions and survive until the next available moisture is provided, then those plants will act as a carbon sink and potentially reducing carbon emissions from the environment. All thre ...
Native Plant Propagation - Washington Native Plant Society
Native Plant Propagation - Washington Native Plant Society

... new plants, and often produce useable plants more quickly than seeds. Hardwood cuttings are cuttings taken when the plant is not actively growing – usually late fall through winter. Hardwood cuttings can be taken from both deciduous and evergreen plants. (Since broadleaf and conifer evergreen plants ...
Nana Purpurea Nandina
Nana Purpurea Nandina

... - Container Planting - Groundcover - Border Edging Plant Characteristics: Nana Purpurea Nandina will grow to be about 24 inches tall at maturity, with a spread of 24 inches. It tends to fill out right to the ground and therefore doesn't necessarily require facer plants in front. It grows at a medium ...
The signaling function of an extra
The signaling function of an extra

... flowers are arranged in whorls around the stem, and flowering progresses from the bottom of the inflorescences upwards. The upper lip of the corolla is dark purple while the lower lip is light purple or white (Feinbrun-Dothan, 1978). Flag-like bract clusters, composed of several colorful (purple, pi ...
Taro cultivar named `Pa`lehua`
Taro cultivar named `Pa`lehua`

... Series 145]. The traits of the plants which were generated by apical meristem multiplication were identical to those of the plant from which they were sexually reproduced. Cloned and rooted tissue culture plants of `Pa'lehua` were produced at the University of Hawaii at Manoa, Honolulu, Hi. Rooted t ...
Plant responses to drought, salinity and extreme temperatures
Plant responses to drought, salinity and extreme temperatures

... sites for the trans-active heat-shock factors (HSFs; Schöffl et al. 1998). The HSEs share a common consensus sequence ‘‘nGAAnnTTCnnGAAn’’. Plant HSFs, which are further categorized into three classes, A, B and C, appear to be a unique family containing a number of members: 21 from Arabidopsis, more t ...
< 1 ... 50 51 52 53 54 55 56 57 58 ... 347 >

History of botany



The history of botany examines the human effort to understand life on Earth by tracing the historical development of the discipline of botany—that part of natural science dealing with organisms traditionally treated as plants.Rudimentary botanical science began with empirically-based plant lore passed from generation to generation in the oral traditions of paleolithic hunter-gatherers. The first written records of plants were made in the Neolithic Revolution about 10,000 years ago as writing was developed in the settled agricultural communities where plants and animals were first domesticated. The first writings that show human curiosity about plants themselves, rather than the uses that could be made of them, appears in the teachings of Aristotle's student Theophrastus at the Lyceum in ancient Athens in about 350 BC; this is considered the starting point for modern botany. In Europe, this early botanical science was soon overshadowed by a medieval preoccupation with the medicinal properties of plants that lasted more than 1000 years. During this time, the medicinal works of classical antiquity were reproduced in manuscripts and books called herbals. In China and the Arab world, the Greco-Roman work on medicinal plants was preserved and extended.In Europe the Renaissance of the 14th–17th centuries heralded a scientific revival during which botany gradually emerged from natural history as an independent science, distinct from medicine and agriculture. Herbals were replaced by floras: books that described the native plants of local regions. The invention of the microscope stimulated the study of plant anatomy, and the first carefully designed experiments in plant physiology were performed. With the expansion of trade and exploration beyond Europe, the many new plants being discovered were subjected to an increasingly rigorous process of naming, description, and classification.Progressively more sophisticated scientific technology has aided the development of contemporary botanical offshoots in the plant sciences, ranging from the applied fields of economic botany (notably agriculture, horticulture and forestry), to the detailed examination of the structure and function of plants and their interaction with the environment over many scales from the large-scale global significance of vegetation and plant communities (biogeography and ecology) through to the small scale of subjects like cell theory, molecular biology and plant biochemistry.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report