Navigate

Fall of immature leaf is due to the deficiency of

Fall of immature leaf is due to the deficiency of

Options

(a) sodium
(b) sulphur
(c) zinc
(d) phosphorus

Correct Answer:

zinc

Explanation:

Zinc plays an important role in the synthesis of tryphtophan which is precursor of auxin.Its deficiency causes immature fall of young leaves due to formation of abscission layer which is prevented by auxin and zinc plays an important role in auxin formation.Sulphur is a component of protoplasm and favours root formation.Phosphorus is essential constituent of DNA,RNA and nucleoproteins.It is an energy carrier and forms a part of ATP,ADP and NADP.

AFMC1997AFMC2006
admin:

Related Questions

  1. Transition type of gene mutation is caued when
  2. Four sepals arranged in two whorls is characteristic of family
  3. Which one of the following may require pollinators, but is genetically
  4. Vascular tissues in flowering plants develop from:
  5. The common characteristics between tomato and potato will be maximum at