Comparative Evaluation of Allelochemical Bio-extracts on Growth and Yield Parameters of Wheat (Triticum aestivum L.), Punjab

Somak Maity and Subhra Sahoo

Abstract

Weed infestation seriously threatens agricultural crop production and their management. 45% yield losses happen only due to high weed infestation. To control the high weed population in the field, conventional methods are followed which are costly and labor-intensive. Blind application of herbicides for weed control is highly hazardous for the crop. In order to reduce the herbicide application, research was conducted during 2022-23 in Punjab by utilizing aqueous extracts of allelopathic plants namely Sorghum bicolor, Oryza sativa, Parthenium hysterophorous, and Lantana camara. First those leave extract are made then applied to the field and all the data (i.e., plant height, effective tillers per plant, spikes per sq. m, ear length, number of grains per spike) are taken manually This study is mainly focused on the effect of allelochemicals on wheat growth and yield. The present study shows that P. hysterophorous root aqueous extract at 5% concentration improves the wheat crop height (20.67, 64.62 and 84.89 cm), the number of tillers and yield parameters (Effective tillers per plant, spikes per sq. m, ear length, number of grains per spike). Alongside P. hysterophorus leave extract, O. sativa aqueous extract and hand weeding also effectively control the weed and contribute to wheat yield. However, these extracts can be used as a viable weedicide but further research is needed to explore the full effectiveness of these allelochemicals.

Published on: October 24, 2023
doi: 10.17756/jfcn.2023-s1-003
Citation: Maity S, Sahoo S. 2023. Comparative Evaluation of Allelochemical Bio-extracts on Growth and Yield Parameters of Wheat (Triticum aestivum L.), Punjab. J Food Chem Nanotechnol 9(S1): S12-S15.

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