2015 State Citrus Exam

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.