Class XI

Auxins are generally produced in
  1. leaves
  2. Phloem
  3. xylem
  4. root and shoot tips
The most commonly used compound as a source of ethylene
  1. Ethephon
  2. Kinetin
  3. zeatin
  4. IBA
Auxanometer is used to measure
  1. Leaf number
  2. Growth in breadth
  3. Growth in length
  4. Pest population
Auxin precursor for IAA is
  1. Buteric acid
  2. Tryptophan
  3. Alanine
  4. Aspartic acid
Mathematically arithmetic growth is expressed as
  1. Lt=L0+ rt
  2. Lt=L0 - rt
  3. Lt=L0.rt
  4. Lt=L0/rt
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