Studies on the allelopathic effects of some agroforestry tree crops of Garhwal Himalaya |
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Authors: | B. P. Bhatt N. P. Todaria |
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Affiliation: | 1. Department of Forestry, H.N.B. Garhwal University, 246 174, Srinagar (Garhwal), U.P. India
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Abstract: | The allelopathic effects of Adina cordifolia, Alnus nepalensis, Celtis australis and Prunus cerasoides were tested by growing crops of Eleusine coracana, Glycine max and Hordeum vulgare on top soil, rhizosphere soil from the plantation of these trees, and on field soil either mulched with dry leaves or irrigated with aqueous leaf extracts of the agroforestry tree species. Germination percentage, shoot length, root length and dry matter production and pigment contents of crops were depressed by agroforestry tree crops. Maximum reduction in germination percentage, root-shoot length and dry matter production was obtained with experimental garden soil mulched with dry leaves of trees and by the effect of Adina cordifolia followed by P. cerasoides, H. vulgare proved most susceptible and E. coracana highly resistant to these tree-top interactions. |
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