Sunday, May 20, 2012

graphene is a synthetic polymer, has a conductivity of electricity and heat in highest order!

Tuesday, March 27, 2012

PLANTS HORMONES

these are also called as phyto hormones.these coordinate the activities by controlling the growth of plant.

types- AUXINS,GIBBERELLINS,CYTOKININS,ABSCISIC ACID[ABC].
AUXINS-promote cell enlargement, differentiation,fruit growth in plants.
GIBBERELLINS-these function in presence of auxins, help in breaking dormancy in seed,buds, fruits!
CYTOKININS-promote cell division,delay ageing in leaves, opening of stomata, promote fruit growth.
ABA-inhibits growth in plants,promotes closing of stomata, helps in wilting and falling of leaves![abscission].

Thursday, February 16, 2012