“Allelopathic effect of leaf and bark extract of Myrica esculenta on agricultural test crops under laboratory and nursery conditions”
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Date
2023
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College of Forestry, Ranichauri
Abstract
Title: “Allelopathic effect of leaf and bark extract of Myrica esculenta on agricultural test crops under laboratory and nursery conditions”
The present investigation entitled “Allelopathic effect of leaf and bark extract of Myrica esculenta on agricultural test crops under laboratory and nursery conditions” was undertaken in the department of Forestry, College of Forestry (Veer Chandra Singh Garhwali Uttarakhand University of Horticulture and Forestry) Ranichauri, Tehri Garhwal, Uttarakhand during March to August, 2023. The experiment was conducted to examine the Allelopathic effect of aqueous (Control, 5%, 7% and 9%) leaf and bark extract of Myrica esculenta on germination, growth performance and biomass production of five agricultural crops (Eleusine coracana, Setaria italica, Amaranthus caudatus, Vigna umbellata and Panicum miliaceum) under laboratory and nursery conditions. In the present study results indicates more inhibitory effects as compared to stimulatory effect on test crops under laboratory and nursery conditions. The leaf and bark extract were potent source of various metabolites. The stimulatory effect on crops which might be due to the degree of toxicity could not be higher in these improved varieties. The aqueous extracts of leaf and bark of Myrica esculenta exhibited maximum germination at 5% concentration whereas minimum was recorded at 9% concentration. Eleusine coracana was found to be the most sensitive crop to the allelochemicals released by leaf and bark extracts of Myrica esculenta whereas Amaranthus caudatus found least sensitive crop. From the study it can be concluded that growth parameters were more affected by leaf extract as compared to bark extract. It showed that leaves contained more toxic allelochemicals then bark extract and the toxicity of these two extracts was increased with increase in concentration in different concentration of leaf extracts, the tolerance ability of the test crops can be order as A. caudatus> P. miliaceum>S. Italica> V. umbellata> E.coracana.