use of plant hormones

Question 1

what is the use of plant hormone auxin

Answer 1

-to kill weeds affecting crop plants= at right conc= kill broad plants (weeds)
-production of seedless fruit
-speed up root growth in plant cuttings

Question 2

what is the use of plant hormone gibberellin

Answer 2

-breeding plants from juvenile plants that would not normally produce seeds#-increase yield of sugar from sugar cane plants
-fats production of malt from barely for use in brewing
-production of larger less compacted grapes

Question 3

what is the use of plant hormones cytokinins

Answer 3

-prevention of yellowing, ageing, of veg leaves post-harvest
-production of plants with short shoots and many side branches e.g for mass production of plants using tissue culture= bc it promotes side shoot growth

Question 4

explain the use of the hormone ethene

Answer 4

-fruit ripening once unripe fruit arrives at the supermarket as it triggers conversion of starch to sugars leading to fruit ripening