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VOL. 7, ISSUE 5 (2025)
Ecophysiological and biochemical analysis of Pisum sativum under combined allelopathic stress from Lantana camara and Cassia tora
Authors
Rinkee Kumari, Dr. Puja Kumari Jaiswal
Abstract
The present study investigates the combined allelopathic effects of two
invasive species, Lantana camara and Cassia tora, on the
ecophysiological and biochemical responses of Pisum sativum
(pea), a key pulse crop with significant agricultural importance. Allelopathy,
involving the release of bioactive compounds by plants, poses a critical threat
to crop growth and sustainability, particularly in regions affected by invasive
species. In this controlled greenhouse experiment, aqueous leaf extracts of Lantana
camara and Cassia tora were applied individually and in combination
at varying concentrations to assess their impact on seed germination, growth
parameters, photosynthetic pigments, and biochemical stress markers in Pisum
sativum. The study revealed that dual exposure to the extracts resulted in a
significant decline in germination percentage, root and shoot length, biomass
accumulation, and chlorophyll content. Concurrently, stress-related biochemical
markers such as proline, malondialdehyde (MDA), and antioxidant enzyme activities
(catalase, peroxidase, and superoxide dismutase) increased markedly, indicating
oxidative stress and a defensive biochemical response. Statistical analyses,
including ANOVA and correlation, confirmed the severity of the combined
allelopathic stress compared to individual treatments. The findings highlight
the synergistic phytotoxic effects of invasive species and underscore the need
for integrated weed management strategies in sustainable pulse-based
agroecosystems. This research contributes to the broader understanding of
invasion biology and provides practical implications for ecological crop
management under the threat of multiple invasive weeds.
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Pages:1-8
How to cite this article:
Rinkee Kumari, Dr. Puja Kumari Jaiswal "Ecophysiological and biochemical analysis of <i>Pisum sativum</i> under combined allelopathic stress from <i>Lantana camara</i> and <i>Cassia tora</i>". International Journal of Agriculture and Plant Science, Vol 7, Issue 5, 2025, Pages 1-8
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