Invasive Species Compendium

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Abstract

Allelopathic effects of some agroforestry tree crops of Garhwal Himalaya.

Abstract

Aqueous leaf and bark extracts of some agroforestry tree crops were tested for their phytotoxic effects on germination and radicle extension of millets (Echinochloa frumentacea and Eleusine coracana), maize, and legume food crops (Vigna unguiculata and soyabeans). Foliar and bark extracts of Grewia asiatica, Ficus cumia, Bauhinia racemosa, Celtis australis and Quercus leucotrichophora adversely affected the germination of Vigna unguiculata and soyabeans more severely than maize, Eleusine coracana and Echinochloa frumentacea. Radicle extension of all five test crops was significantly reduced by all the tree crops tested.