ICAR Research Complex for NEH Region, Nagaland Centre, Medziphema-797 106, Nagaland, India. E. Mail: drbpbhatt.icar@yahoo.com.
*Correspondence author
The allelopathic potential of top soil, rhizosphere soil, leaf mulch and aqueous extract of Chukrasia tabularis A. Juss., Gmelina arborea L., Michelia oblonga Wall. and Terminalia myriocarpa Heurck & Muell. Arg. were determined on rice (cv. Nagaland Special), maize (cv. Vijay Composite), green gram (cv. SG-I), rice bean (cv. Nagaland Local) and rapeseed (TS-38). Inhibitory effects were more on germination, dry matter yield and pigment contents of all test crops than on root and shoot length. All test crops were found sensitive to allelopathic influences of tree species particularly, T. myriocarpa and M. oblonga. The allelopathic influences were species specific. Rapeseed and legume test crops were highly susceptible to toxicity of trees than cereal test crops.
Agro forestry, allelopathy, Chukrasia tabularis A. Juss, Eastern Himalaya, food crops, germination, Gmelina arborea L., greengram, maize, Michelia oblonga, pigment, rapeseed, rice, ricebean, root length, shoot length, Terminalia myriocarpa
