Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Root - Plant Growth Substances
Induction of roots by auxins in stem cuttings is a well known phenomenon. The concentrations needed are much lower as compared to that which promotes shoot growth. Auxins also induce lateral root growth at lower concentrations. High concentrations of auxins are inhibitory to root growth. The auxin transport is basipetal in nature. Produced in shoot apex and lateral active shoot buds-auxins percolate towards roots. Obviously, the concentrations that reach roots are low.
The presence of cytokinins is a must for promotion of cell division in root tips. Cytokinins also interact with auxins in the cellular differentiation to produce roots and shoots. Gibberellins do not seem to be having much role in root growth. Ethylene plays vital role in affecting the nastic responses and geotropism. It also promotes dormancy in buds.
The environmental pollution has become a biggest threat to humanity. To over-come this problem a suitable preventive legislation is need of hour. The problems of acid rain ,ozone
Homo erectus first arose about 1.6 million years ago and is believed to have lived for atleast 600,000 years at a time when the transition to Homo sapiens took place. The fosSil fi
MENDEL'S EXPERIMENTAL PLANT Mendel selected common garden pea ( Pisum sativum ) for his experiments, because:- (i) The pea is small and annual plant. Duration of lif
What benefits led to natural selection of a two-circuit pump function of the heart a) One circuit to go from the heart to the body and one from the heart to the lungs b) One cir
Classification of Multicellular Animals - Coelom We know earlier that the pseudocoel gave animals specific selective benefits. Among other things, this fluid-tilled space wor
Complete feed system in ruminants Complete feed system for feeding dairy animals is a departure from conventional individual rationing method. It involves the self-feeding of
Pre-Embryonic Development We had said in the starting of the unit that prenatal development can be divided into two phases, embryonic and foetal. The embryonic phase of devel
Ask questionLIMITATION OF ECOLOGICAL PYRAMIDS #Minimum 100 words accepted#
Culture Medium - Techniques of Plant Tissue Culture In nature green plants are capable of synthesizing organic compounds necessary for their growth and development from the mi
Explain about Skeletal muscle These are attached to the bones by tendons, which help in the movement of the part of the skeleton. These muscles are controlled by our conscious
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd