Dear Sir
I hope you will be fine and enjoying a good health.Thankyou very much for your positive response.Sir now a days one of our student is working on phytosociological survey of parthenium in Lahore district.I read your paper of phytosociological survey of rainyseason watelands weeds  with special reference to Parthenium hysterophorus in  of Raipur in which you followed the method of Raju and Reddy.But unfortunatly this paper is not available.

Sir the confusion in my mind is that what does" special reference to Parthenium" means and what is multistage random samplig .Is survey with special reference to Parthenium means throwing quadrat where Parthenium is growings.As paerthenium is present in Patches of different areas how to select the sampling of the area.Sir I am not a vegetaion expert,I shall be very thankfull to you if please guide me in this respect.
                                                       
With Best Wishes
Assad Shabbir

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