• 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
Phloem-and xylem-restricted plant pathogenic bacteria
Phloem-and xylem-restricted plant pathogenic bacteria

... witches’-broom), revealed the presence of micro-organisms lacking a cell wall, and which resembled morphologically and ultrastructurally animal and human mycoplasmas [35]. On the basis of this resemblance, the plant agents were called MLOs. Today, over 300 different plant species from over hundred f ...
Grevillea banksii - Toto Agriculture
Grevillea banksii - Toto Agriculture

... commercially successful garden plants in Australian horticultural history. It is also parent of other garden plants Grevillea 'Honey  Gem', G. 'Superb', G. 'Misty Pink', G. 'Pink Surprise', and possibly G. 'Moonlight'.  ...
Chapter 39 Plant Responses to Internal and External Signals
Chapter 39 Plant Responses to Internal and External Signals

... 7) Which of these conclusions is supported by the research of both Went and Charles and Francis Darwin on shoot responses to light? A) When shoots are exposed to light, a chemical substance migrates toward the light. B) Agar contains a chemical substance that mimics a plant hormone. C) A chemical su ...
Gravitropism in Leaves of Arabidopsis thaliana (L.) Heynh.
Gravitropism in Leaves of Arabidopsis thaliana (L.) Heynh.

... Arabidopsis thaliana (L.) Heynh. (Arabidopsis, hereafter) have supplied vast knowledge on the mechanisms of gravitropism in stems and roots from mutational analyses (Okada and Shimura 1992, reviewed by Fukaki et al. 1996a, Tasaka et al. 1999, Terao-Morita and Tasaka 2004). The graviresponse is not a ...
Copy of RLO Grafting techniques in Mango
Copy of RLO Grafting techniques in Mango

... with swollen eye buds and 10 to 15 cm length and of pencil size thickness. Leaves are defoliated 8 to 10 days before cutting for ...
Gymnosperms and Guide - Visual Learning Systems
Gymnosperms and Guide - Visual Learning Systems

... 62. Gnetophytes, in the phylum Gnetophyta, include about 65 different species of plants. 63. About half the species of gnetophytes are in the genus Ephedra, a common plant found in arid regions of North America. 64. Conifers, in the phylum Pinophyta, are the largest and tallest living things on the ...
Chapter 24 - Everglades High School
Chapter 24 - Everglades High School

... Reproduction in Nonvascular Plants, continued Life Cycle of a Moss • A moss sporophyte grows from a gametophyte and remains attached to it. • Spores form by meiosis inside the spore capsule. Therefore, as in all plants, the spores are haploid. • The spore capsule opens when the spores are mature, an ...
B O T A N I C A L
B O T A N I C A L

... Botanical Garden or the Ruth Bancroft Garden in Walnut creek. Both of these gardens have beautiful displays of succulent plants that can be inspirational. The climate of these two gardens is slightly milder than that of Davis and some of the aloes will need more protection in the winter. Many specie ...
Rough Agalinis (Agalinis aspera) - Registre public des espèces en
Rough Agalinis (Agalinis aspera) - Registre public des espèces en

... acuta is federally listed as endangered in the USA; Agalinis gattingeri is listed as endangered in Canada. Morphological description This description is based on Pennell (1929), Pennell (1935), Britton and Brown (1970) and personal observations on fresh and herbarium specimens from Manitoba. Agalini ...
Ei dian otsikkoa
Ei dian otsikkoa

...  About 7000 terms in Finnish  About 5000 terms with English translations  About 3000 terms with Agrovoc terms  Scientific names of plants and animals ...
Enhancing crop yield by optimizing plant developmental features
Enhancing crop yield by optimizing plant developmental features

... photosynthetic efficiency, and thus yield, requires a thorough understanding of the genetic basis of these traits. Considerable progress has been made in deciphering the genetic and molecular basis of the developmental processes that govern these traits, particularly in the model plant species Arabi ...
Section 18: Fabaceae, Polygalaceae
Section 18: Fabaceae, Polygalaceae

... This family of plants is one of the most influential ecologically because of their ability to fixate nitrogen from the atmosphere, an element essential to all life but one which does not readily enter into combination with other elements to form compounds that can be used by plants. Legumes (and a f ...
S-PM2 Bacteriophage as a Remedy for Photoinhibition in
S-PM2 Bacteriophage as a Remedy for Photoinhibition in

... When a sunlight plant grown under low radiance conditions is transferred to high radiance, there is an enhancement in the photosynthetic capacity as the plant adapts itself to the increase of irradiance. However, leaves from these plants may show photoinhibition, with a decline in photosynthetic act ...
Growing Presentation - Hillpark Secondary School
Growing Presentation - Hillpark Secondary School

... •Seeds need oxygen, water and heat to germinate •Seeds do not need light to germinate ...
Abstracts* of invited lectures, oral and poster presentations given at
Abstracts* of invited lectures, oral and poster presentations given at

... past, mycotoxin contamination of food was considered as a storage phenomenon whereby grains becoming moldy during storage allowed for the production of these secondary metabolites proven to be toxic when consumed by humans and animals. Subsequently, mycotoxins of several kinds were found to be forme ...
PERSEA AMERICANA Persea americana CHAPTER 1
PERSEA AMERICANA Persea americana CHAPTER 1

... and West Indian or Antillean races have been selected over millennia (Knight, 2002). Although little is known or recorded about the introduction of avocado to South Africa, it is accepted that the first trees were West Indian race-seedlings planted on the coastal strip around Durban in the late 19th ...
Invasive Plants Taking Root in Alaska 9
Invasive Plants Taking Root in Alaska 9

... have legislation to define and list certain “noxious weeds” that are prohibited from being sold and transported. In Alaska, State Statutes (AS 03.05.010) identify a list of noxious weeds that are prohibited. However, noxious weed lists often focus on agricultural pest plants. How can these laws be e ...
Poisonous native range plants - Center for Grassland Studies
Poisonous native range plants - Center for Grassland Studies

... manner similar to curare. The alkaloids are present in all parts of the green plant, and are reduced as the plant matures and dries. However, hay containing large quantities of poison hemlock can cause significant death loss. A lethal dose of the green plant for cattle ranges from 0.2-0.5% of their ...
Effect of phosphorus and sulphur and their
Effect of phosphorus and sulphur and their

... and may shed prematurely (Goswami and Rattan, 2004). Sulphur has long been recognized as indispensable for much reaction in living cell. In addition to its vital role in plant and animal nutrition, Sulphur is also responsible for several type of air, water and soil pollution and is therefore of incr ...
impact of mycorrhizal fungi and other symbiotic microbes as
impact of mycorrhizal fungi and other symbiotic microbes as

... Undoubtedly, tomatoes are one of the most important and popular salad crops in many countries world-wide. Indeed, a salad bowl would be definitely poor without tomato. There are many details surrounding their culture which, if understood, help to produce bigger and better crops of fruit. Every time, ...
Free-radical scavenging activity and bioactive secondary
Free-radical scavenging activity and bioactive secondary

... oppositifolius [syn. Mollugo oppositifolia and Mollugo spergula ...
Arabidopsis thaliana avoids freezing by
Arabidopsis thaliana avoids freezing by

... watered twice a week and fertilized with Phostrogen (Solaris, Buckinghamshire, UK) using 0.12 g lÿ1, once every 2 weeks. Relative humidity was around 60–70%. These plants were referred as non-acclimated or controls. Cold acclimation treatment For cold acclimation, plants at the vegetative stage (ba ...
Plants - Pace University ePortfolio
Plants - Pace University ePortfolio

...  Makes food to feed the plant ...
Document
Document

... Figure 3 Phenotypes of triply and quadruply transgenic plants. a, Sixteen-day-old 35S::SEP3 plant showing a severe phenotype. b, Three-week-old 35S::PI;35S::AP3 plant displaying the curled leaf phenotype. c, Three-week-old 35S::PI;35S::AP3;35S::SEP3 plant. Cotyledons (C) are rather normal, but t ...
Molybdenum deficiency in plants
Molybdenum deficiency in plants

... potassium, sulfur, calcium and magnesium). But they are essential for normal growth. Of these six minor elements, molybdenum is needed in smaller quantities than any of the others. As little as 50 grams of molybdenum per hectare will satisfy the needs of most crops. Molybdenum is often present in fa ...
< 1 ... 25 26 27 28 29 30 31 32 33 ... 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