Agreed with Pankaj Ji. And Allelopathy never means only suppression. Both inhibitory as well as stimulatory Allelopathic interactions exist in Nature.
regards Pankaj Oudhia On Wed, Oct 6, 2010 at 12:08 PM, Pankaj Kumar <[email protected]>wrote: > Allelopathic effects may differ according to the climatic conditions > of the area. > Pankaj > > > On Wed, Oct 6, 2010 at 10:21 AM, Sangeetha <[email protected]> > wrote: > > Palia ji, > > > > Please find the study in the links given below. Hope its useful to > > you. > > > > http://www.springerlink.com/content/xx2j657m24twu832/ > > http://www.springerlink.com/content/p21qhl0431018786/ > > > > Regards, > > Sangeetha > > > > > > On Oct 6, 5:57 am, Yazdy Palia <[email protected]> wrote: > >> Sangeetha Ji, > >> Thank you for the enlightenment. You will observe that I have > >> mentioned that these are the observation of a lay person. For your > >> reference, I will send you the picture of the growth under my tamarind > >> tree a few hours later. Thank you once again. I would love to receive > >> the study that has been conducted on the subject. > >> Regards > >> Yazdy. > >> > >> > >> > >> On Tue, Oct 5, 2010 at 11:43 PM, Sangeetha <[email protected]> > wrote: > >> > Palia ji, > >> > >> > Tamrind root exudates have allelopathic competence and are evaluated > >> > for sustainable weed management programs. > >> > The bark and the seeds have differential (inhibitory and excitatory) > >> > allelopathic effects. They have some growth regulators which > >> > additively or synergestically involve in plant specific expression. > >> > >> > Regards, > >> > Sangeeth mallika > >> > >> > On Oct 5, 10:20 pm, Yazdy Palia <[email protected]> wrote: > >> >> Dr. Gurcharan Singh Ji, > >> >> I do not know about walnut tree and allelopathy. I have seen that > >> >> nothing grows under a tree where the shade is so thick that no > >> >> sunlight penetrates. I have seen someone claim that tamarind tree has > >> >> also the allelopathy effect. I can not agree to that as I have a > >> >> couple of them and we have coffee growing very well underneath it. I > >> >> had a very healthy pepper vine on them and also thick growth of weeds > >> >> growing under its shade. > >> >> It is worth observing the rainfall in the area where such > observations > >> >> are made. Another point to be observed is are the walnut trees so > >> >> close to each other that no sunlight penetrates under the thick > >> >> canopy. > >> >> We have a few jack fruit trees so close to each other and no weeds > >> >> would grow underneath it in spite of very nice mulch and nice loamy > >> >> soil. Once we regulated the shade, we found lush growth underneath > it. > >> >> This though is the observation of a lay person. > >> >> Regards > >> >> Yazdy. > >> > >> >> On Tue, Oct 5, 2010 at 12:45 AM, Gurcharan Singh <[email protected]> > wrote: > >> >> > Yes walnut is the commonest example of allelopathy I would tell my > students. > >> >> > Hardly any plant grows beneath it. > >> > >> >> > -- > >> >> > Dr. Gurcharan Singh > >> >> > Retired Associate Professor > >> >> > SGTB Khalsa College, University of Delhi, Delhi-110007 > >> >> > Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. > >> >> > > Phone:011-25518297begin_of_the_skype_highlighting 011-25518297 > end_of_the_skype_highlightingbegin_of_the_skype_highlighting > 011-25518297 end_of_the_skype_highlighting > Mob:9810359089begin_of_the_skype_highlighting 9810359089 > end_of_the_skype_highlightingbegin_of_the_skype_highlighting > 9810359089 end_of_the_skype_highlighting > >> >> >http://people.du.ac.in/~singhg45/<http://people.du.ac.in/%7Esinghg45/> > >> > >> >> > On Mon, Oct 4, 2010 at 11:08 AM, Sushmita Jha < > [email protected]> > >> >> > wrote: > >> > >> >> >> Thank you, Mani ji. I did not know that walnut is an allelopathic > tree. > >> >> >> What are the other common trees that are allelopathic? Are neem > and banyan? > >> >> >> Regards, > >> >> >> Sushmita Jha > >> >> >> On Mon, Oct 4, 2010 at 11:29 PM, mani nair <[email protected]> > wrote: > >> > >> >> >>> Sushmita ji, nice photos. Last year during our visit to Kashmir > we go to > >> >> >>> see lots of Walnut trees with immature fruits. The tree is very > beautiful > >> >> >>> and is allelopathic - meaning it does not allow any other plants > to grow > >> >> >>> under or near it. > >> > >> >> >>> Thanks for sharing > >> > >> >> >>> Regards, > >> > >> >> >>> Mani. > >> > >> >> >>> On Mon, Oct 4, 2010 at 11:16 PM, Sushmita Jha < > [email protected]> > >> >> >>> wrote: > >> > >> >> >>>> These images have been taken by my brother, Somnath Jha, who is > based in > >> >> >>>> Srinagar.- Hide quoted text - > >> > >> >> - Show quoted text -- Hide quoted text - > >> > >> - Show quoted text - > > > > -- > *********************************************** > "TAXONOMISTS GETTING EXTINCT AND SPECIES DATA DEFICIENT !!" > > > Pankaj Kumar Ph.D. (Orchidaceae) > Research Associate > Greater Kailash Sacred Landscape Project > Department of Habitat Ecology > Wildlife Institute of India > Post Box # 18 > Dehradun - 248001, India >
