Abstract
ABSTRACT Allelopathic influence of Z. armatum was tested on some important winter field crops (T. aestivum, H. vulgare, B. compastris, and L. culminaris) of Garhwal Himalaya region, using different concentrations of leaf, bark, and fruit pulp aqueous extracts. Significant effects of these bioassays were noticed on germination and growth of all the test crops. Among all the tested crops, B. compastris followed by T. aestivum were found to be most sensitive, while H. vulgare and L. culminaris were the least sensitive in terms of germination. On the other hand, increased concentrations (5 and 10%) of leaf, bark, and fruit pulp aqueous extracts considerably reduced the radicle and plumule growth of all the test crops as compared with control. It is suggested that H. vulgare and L. culminaris may be cultivated in proximity of Z. armatum.
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