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Worksheets2015 State Citrus Exam
Total questions: 25
Worksheet time: 25mins
History indicates that most citrus varieties originated in China and Indochina. However, it is believed that Micro-citrus and Eremocitrus originated in
Australia
Saigon
Spain
United States
A standard Florida field box contains ____ pounds of oranges.
45
60
90
120
Who is known as the "Father of Botany"?
Alexander the Great
Michael Angelo
Theophrastus
Vasco de Gama
The vector of Citrus Greening (HLB) is the
Asian Fruit Fly
Asian Citrus Psyllid
Caribbean Fruit Fly
Texas Citrus Mite
The scientific name of the sweet orange is
Citrus cleopatra
Citrus aurantium
Citrus sinensis
Citrus trifloliata
Nagami, Marumi, and Meiwa are examples of
Grapefruit
Kumquats
Lemons
Sweet Oranges
The ideal temperature for germination of citrus seeds is
65 to 75 degrees Fahrenheit
75 to 85 degrees Fahrenheit
85 to 95 degrees Fahrenheit
above 95 degrees Fahrenheit
Most citrus trees today consist of a two-part tree. The two parts are
Scion and Rootstock
Trunk and Leaves
Roots and Fruit
Seeds and Flowers
The Smooth Flat Seville is an example of a
Grapefruit rootstock
Sour Orange rootstock
Sweet Orange rootstock
Tangerine rootstock
Why has Florida citrus been more affected by freezes than in California?
Florida is located at a more northern latitude than California.
The Pacific Ocean is colder than the Atlantic Ocean.
Most cold fronts originate in Canada and move south.
California citrus are more cold hardy.
Typically commercial citrus groves contain
50-60 trees per acre
90-100 trees per acre
140-200 trees per acre
300-400 trees per acre
When is the best time to plant citrus trees in Florida?
December to February
March to April
July to August
September to November
Which of the following are the three primary nutrients?
Nitrogen, Phosphorus, and Potassium
Calcium, Magnesium, and Sulfur
Iron, Copper, and Zinc
Manganese, Cobalt, and Molybdenum
Citrus fruit is damaged when the temperature falls to ____ degrees Fahrenheit and remains there for four or more hours.
26
32
36
42
The recommended soil pH for growing citrus in Florida is
3.5 to 4.5
4.5 to 5.5
5.5 to 6.5
6.5 to 7.5
Traditionally, citrus groves are fertilized __ times a year.
0
1
2
3
Pruning the sides of citrus trees with mechanical equipment is referred to as
hedging
sprouting
skirting
topping
Oleocellosis can occur
on young trees in the spring.
on mature trees in the summer.
on the calyx of green fruit.
on fruit that is harvested when wet.
To be ready for market, limes must contain at least
22% juice by volume
32% juice by volume
42% juice by volume
52% juice by volume
When do chlorophyll level begin to decrease in citrus rinds?
In the spring when temperatures begin to rise.
In the summer when the rainy season starts.
In the fall when the wind begins to blow.
In the late fall or winter when temperatures drop.
Which of the following fruit is required to pass a higher minimum BRIX test before marketing?
Murcotts
Temples
Tangerines
Grapefruit
An independent handler who specializes in purchasing citrus fruit is known as a
fruit packer
bird dog
fruit processor
fruit caretaker
Why is gibberellic acid use on citrus crops?
to increase fruit set
to increase fruit drop
to increase seed production
to increase flower production
To be classified as a "seedless" orange, the fruit must contain what?
0 seeds
Less than 6 seeds
Less than 60 seeds
Less 100 seeds
The Carrizo rootstock is an example of a what?
Citrange intergeneric hybrid
Citrumelo intergeneric hybrid
Sour Orange genetic hybrid
Sweet Orange genetic Hybrid
