Citrus growers and the U.S. Horticultural Research Laboratory have been studying the disease citrus ...

Citrus growers and the U.S. Horticultural Research Laboratory have been studying the disease citrus
  blight since:

 
 

a. 1995 c. 1892
  b. 1900 d. 1800

Question 2

The majority of corn production is in the Midwest.
 
  Indicate whether the statement is true or false

Question 3

When mum cuttings are first placed in the greenhouse, the temperature for the first two weeks should be kept at _____ during night hours.
 
  A) 63F
  B) 55F
  C) 62F
  D) 65F

Question 4

Plant physiologists are responsible for studying and researching which of the following?
 
 

a. osmosis, nutrient uptake, translocation, respiration, photosynthesis, food movement, and
  food storage
  b. planting of new species of seeds, monitoring the irrigation of the seedlings, and weeding
  new species
  c. chemical composition of new herbicides
  d. chemical composition of new pesticides

Question 5

More corn is produced in the United States than any other crop.
 
  Indicate whether the statement is true or false

Question 6

Mums are considered a short-season crop; that is, the plant sets flower buds and blooms only when _____.
 
  A) nights and days are long
  B) nights are long and days are short
  C) nights are short and days are long
  D) nights and days are short