問題一覧
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a land-based primary industry that directly depends on natural resources such as land, water
Agriculture
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Hunter Gatherers
30,000 To 10,000 BC
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Neolithic Revolution
10,000 to 8,000 BC
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The Neolithic Revolution spreads.
8000 - 6000 BC
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villages, towns, and cities were established.
6000 - 4000 BC
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domestication of a large number of crops
4000 - 400 BC
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Fishing apparently became common in Egypt
400 BC - 1000 AD
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Farmers learned how to maintain soil fertility, but cereal yields reached a plateau.
THE 11TH CENTURY
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An important period. 1750s—agriculture in England became highly organized. Late 1700s—European societies saw stagnant/falling yields
1700s
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Principle of Population as It Affects the Future Improvement of Society
THOMAS MALTHUS
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Period of profound change. 1825—world population reaches one billion people.
The 1800s
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First use of pesticides in the early ________?
1900s
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world population reached 2 billion.
1927
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Chemical inputs for agriculture greatly increased.
INDUSTRIAL AGRICULTURE
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what year reach the 3 billion population
1960
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Planned international effort to eliminate hunger by improving crop performance.
The green revolution
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Agricultural technology has developed more rapidly
The 20th century
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proposed five centers of origin in 1924, which developed into eight in 1935
NikolaiIvanovich Vavilov
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This is the native region for soybeans, millet, vegetable ,and fruits.
East Asian center
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This is the native land of rice,sugarcane, tropical fruit, and vegetables.
Hindustani Center
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origin ofwheat,rye,and fruittrees
Inter-Asiatic Center
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original species of temperate fruit trees
Caucasian Center
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olives and the carob tree.
Mediterranean center
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produced teff niger seed oil plant and banana
Abyssinian center
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Staple plants such as maize, cotton, beans, cocoa
Central American center
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This land produced many tuber-bearing crops suchas potatoes
Andean center
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The first evidence of the use of wheat, was found in ____________?
Israel
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Origin of corn
Mexico and Guatemala
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origin of potatoe
heart of south America
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Systematically accumulated and tested knowledge
science
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Any organism belonging to the kingdom Plantae,
Plant
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Domesticated cultivated plants grownfor profit
Crop
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Itis concernedvwith the observation and classification of knowledge concerning economically cultivated crops and the establishment of verifiable principles regarding their growth and development for the purpose of deriving the optimum benefit from them.
Crop science
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Deals with the principles and practices of managing fieldcrops and soils.
Agronomy
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deals with gardens and plants within an enclosure.
Horticulture
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agronomy has been derived from two Greek word
Agros = field
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adaptable to the particular agro-climate, land situation, soil fertilit season
choice of crop varieties
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grasses that produce edible grain.
cereal crops
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Crops that seeds are rich in fatty acids
oil seed crops
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Legumes grown for their edible, high protein seeds
pulse cros
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crops whose vegetative parts—including stems, leaves, and sometimes attached seed or grain—are used for livestock feed
forage crops
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plants for clothing, rope, paper, and baskets
fiber crops
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Crops grown for the production ofSugarandstarch;suchassugarcane,sugarbeet
sugar crops
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crops are legumes or grasses that are incorporated into the soil
green manuring crops
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crops use to make wine
beverage crops
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crops such as Tobacco.
narcotic crops
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These crop plants are grown grown for sale to earn hard cash
cash crops
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These crop plants are grown to conserve soil moisture from bare ground
Mulch Crops
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These are crops, which provide a good harvest along with enrichment or restoration or amelioration of their soil, such as legumes.
restorative crops
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These are crop plants, which on growing leave the field exhausted because of a more aggressivenaturesuchas Sesame.
Exhaustive Crops
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Horticulture is derived from two Latin words
hortus
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It deals with the processing and preservation of produce of horticulture crops.
Postharvest technology
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produce organic molecules
autotrophs
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auto means?
self
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live on organic compounds produced by other organisms.
heterotrophs
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hetero mean?
other
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The Sites of Photosynthesis
chloroplast
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the tissue in the interior of the leaf.
mesophyll
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passage of oxygen and carbon
stomata
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A chloroplast has an envelope of two membranes surrounding a dense fluid called the ?
stroma
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third membrane system, made up of sacs called?
thylakoids
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thylakoid sacsare stacked in columns called?
grana
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singular grana called ?
granum
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green pigment that gives leaves their color
chlorophyll
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when oxygen is utilized
aerobic
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when oxygen is not utilize
anaerobic
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Also known as-Embden-Meyerhof-Parnas Pathway
Glycolysis
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Factors Affecting Respiration
1.Age and Tissue type 2.Temperature 3.Oxygen 4.CO2 5.Physiological status of plant or plant Parts 6.Moisture Content of Tissues