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_highlighting > > > > Mob:9810359089begin_of_the_skype_highlighting 9810359089 end_of_the_skype_highlighting > >http://people.du.ac.in/~singhg45/ > > > 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 -
