Dear  K.Suresh Naidu

Pls. find the attached files may help

1.Senescence vs Ageing ?

http://www.sciencedirect.com/science/book/9780125209205

2. Growth inhibitor vs growth retardant ?

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC367390/

https://www.extension.purdue.edu/extmedia/ho/ho-248-w.pdf

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.321.6543&rep=rep1&type=pdf

http://www.cdpr.ca.gov/docs/license/grthreg.pdf

3. Tolerance vs Resistance ?

https://www.ethz.ch/content/dam/ethz/special-interest/usys/ibz/plant-pathology-dam/documents/Courses/2015-Student-files/2015_Presentation_Regoes_Oct13.pdf

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3434923/

http://www.apsnet.org/publications/phytopathology/backissues/Documents/1978Articles/Phyto68n08_1177.pdf

4. Acclimitation vs adaptation ?

The difference between plant acclimation and plant adaptation is a key to understanding plant evolution

http://www.differencebetween.net/science/nature/difference-between-adaptation-and-acclimation/

http://www.gardenguides.com/90527-plant-acclimation-adaptation.html

Regards

Prof. Houda Kawas

Thank you so much sir.