Pesticide Pollution and It’s Effects on Environment and Human Health: A Review

Saxena, Shruti; Chamoli, Anudita; Ruby, .; Kunjwal, Shyam S.

doi:10.56557/upjoz/2023/v44i43430

Cited by 1 publication

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“…In some areas, farmers in Bangladesh spend about 25% of their cultivation costs solely on purchasing toxic pesticides [17]. The repeated and prolonged use of these toxic insecticides has drawbacks, including high application costs, environmental pollution, and health hazards [18]. Despite this, there is a lack of knowledge regarding weed allelopathy and its impact on cucurbit crops.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Allelopathic Activity of Aqueous and Methanol Extracts of Heliotropium indicum Leaves and Roots on Eight Cucurbit Crops

Akter,

Siddiqua,

Begum

et al. 2024

Horticulturae

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Allelopathy, a biological phenomenon where plants release chemicals that influence the growth and development of neighboring flora, offers potential natural alternatives for weed management in agriculture. This study investigated the allelopathic effects of Heliotropium indicum leaf and root extracts on the germination, growth, and biochemical parameters of eight cucurbit crops. Results demonstrated that H. indicum extracts generally inhibited seed germination across all cucurbit species, with aqueous extracts showing a stronger effect than methanol extracts in Lagenaria siceraria at 10.66 ± 0.46% (p < 0.001). The treatment also variably affected shoot and root growth, indicating both inhibitory and stimulatory actions, depending on the crop species and extract type. For instance, in methanol extract treatments, Benincasa hispida’s shoot length was significantly reduced, compared to the control, at 2.1 ± 0.14 cm (p < 0.001). Notably, aqueous leaf extracts enhanced chlorophyll content more effectively than root extracts, suggesting a potential application as a biostimulant, to improve photosynthetic efficiency in certain species, for example, Momordica charantia (p < 0.05). The study further explored the antioxidative potential of the extracts by measuring MDA levels, a biomarker for oxidative stress. MDA levels increased significantly across all species in response to both types of extracts, indicating oxidative stress (L. siceraria p < 0.05). These findings suggest the potential of H. indicum extracts as natural herbicides and biostimulants, though their effects are species-specific and dependent on concentration. This research contributes to understanding the complex interactions in plant allelopathy, and highlights the potential of plant-derived extracts in sustainable agriculture.

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Section: Introductionmentioning

confidence: 99%