Allelopathy a Tool for Sustainable Weed Management

Shirgapure, K. H.; Ghosh, Pritam

doi:10.9734/acri/2020/v20i330180

Cited by 14 publications

(8 citation statements)

References 38 publications

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“…It may be due to the allelopathic potential of sorghum crops which reduced the weed's population (as discussed above) and forthcoming barley performance. It was reported by Shirgapure and Ghosh [50] that the allelochemicals released from any crop can influence the growth of weeds and upcoming crops, and this effect was also observed in the current study.…”

Section: Discussionsupporting

confidence: 86%

Barley-Based Cropping Systems and Weed Control Strategies Influence Weed Infestation, Soil Properties and Barley Productivity

et al. 2022

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Barley-based cropping systems (BCS) alter barley production by influencing weed infestation rates and soil nutrient dynamics. This two-year field study evaluated the interactive effects of five BCS and five weed control strategies (WCS) on soil properties and the growth and yield of barley. Barley was planted in five different cropping systems, i.e., fallow-barley (FB), maize-barley (MaB), cotton-barley (CB), mungbean-barley (MuB) and sorghum-barley (SB). Similarly, five different WCS, weed-free (control, WF), weedy-check (control, WC), false seedbeds (FS), chemical control (CC) and use of allelopathic water extracts (AWE), were included in the study. The SB system had the highest soil bulk density (1.48 and 1.47 g cm−3 during the period 2017–2018 and 2018–2019, respectively) and lowest total soil porosity (41.40 and 41.07% during the period 2017–2018 and 2018–2019, respectively). However, WCS remained non-significant for bulk density and total soil porosity during both years of the study. Barley with WF had a higher leaf area index (5.28 and 4.75) and specific leaf area (65.5 and 64.9 cm−2 g−1) compared with barley grown under WC. The MuB system under WC had the highest values of extractable NH4-N (5.42 and 5.58 mg kg−1), NO3-N (5.79 and 5.93 mg kg−1), P (19.9 and 19.5 mg kg−1), and K (195.6 and 194.3 mg kg−1) with statistically similar NO3-N in the MaB system under WC and extractable K in the MuB system under FS. Grain yield ranged between 2.8–3.2 and 2.9–3.3 t ha−1 during the period 2017–2018 and 2018–2019, respectively, among different WCS. Similarly, grain yield ranged between 2.9–3.2 and 3.0–3.2 t ha−1 during the period 2017–2018 and 2018–2019, respectively, within different BCS. Among WCS, the highest grain yield (3.29 and 3.32 t ha−1) along with yield-related traits of barley were in WF as compared to WC. Overall, MuB system recorded better yield and yield-related traits, whereas the lowest values of these traits were recorded for FB systems. In conclusion, the MuB system with WF improved soil characteristics and barley yield over other cropping systems. The AWE significantly suppressed weeds and was equally effective as the chemical control. Therefore, MuB and AWE could be used to improve barley productivity and suppress weeds infestation.

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Section: Discussionsupporting

confidence: 86%

Barley-Based Cropping Systems and Weed Control Strategies Influence Weed Infestation, Soil Properties and Barley Productivity

et al. 2022

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“…There is huge potential for the technique in weed management; however, the adoption and commercialization of bioherbicides in weed management has been slow due to limiting factors such as the environment, formulation, possible toxicity to non-targets and in some cases cost. Although bioherbicides provide a greener and safer alternative to synthetic herbicides, it currently cannot rival the achievements of synthetic herbicide in weed control [85][86][87][88]. Bioherbicides play an important role in sustainable weed management as they can be used in combination with other management methods to provide an effective control mechanism.…”

Section: Biological Weed Controlmentioning

confidence: 99%

Herbicide Resistance: Managing Weeds in a Changing World

Ofosu,

Agyemang,

Márton

et al. 2023

Agronomy

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Over the years, several agricultural interventions and technologies have contributed immensely towards intensifying food production globally. The introduction of herbicides provided a revolutionary tool for managing the difficult task of weed control contributing significantly towards global food security and human survival. However, in recent times, the successes achieved with chemical weed control have taken a turn, threatening the very existence we have tried to protect. The side effects of conventional farming, particularly the increasing cases of herbicide resistance agricultural weeds, is quite alarming. Global calls for sustainable weed management approaches to be used in food production is mounting. This paper provides detailed information on the molecular biological background of herbicide resistant weed biotypes and highlights the alternative, non-chemical weed management methods which can be used to prevent the development and spreading of herbicide-resistant weeds.

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“…Indeed, the use of different genetic engineering techniques as RNA interference (RNAi) [ 3 , 32 , 34 , 35 , 36 , 37 , 38 ], chimeric RNA/DNA oligonucleotides [ 39 ], and gene-editing techniques (GM), such as CRISPR/Cas9 or CRISPR/Cpf1 [ 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 ] technology, might be useful for this purpose. The best approach to prevent resistant weeds is to use a combined weed management, and herbicides will likely be partly replaced with new technologies such as, among others, research on crop allelopathy [ 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 ] and engineering of microbial control agents [ 57 , 58 , 59 , 60 , 61 ]. Progress in these technologies is expected to allow methods for weed control to be used in an integrated manner with the aim of maximizing diversity in weed control and minimizing resistance.…”

Section: Glyphosate-resistant Weedsmentioning

confidence: 99%

Assessment of Glyphosate Impact on the Agrofood Ecosystem

Sang

Mejuto

Xiao

et al. 2021

Plants

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Agro-industries should adopt effective strategies to use agrochemicals such as glyphosate herbicides cautiously in order to protect public health. This entails careful testing and risk assessment of available choices, and also educating farmers and users with mitigation strategies in ecosystem protection and sustainable development. The key to success in this endeavour is using scientific research on biological pest control, organic farming and regulatory control, etc., for new developments in food production and safety, and for environmental protection. Education and research is of paramount importance for food and nutrition security in the shadow of climate change, and their consequences in food production and consumption safety and sustainability. This review, therefore, diagnoses on the use of glyphosate and the associated development of glyphosate-resistant weeds. It also deals with the risk assessment on human health of glyphosate formulations through environment and dietary exposures based on the impact of glyphosate and its metabolite AMPA –(aminomethyl)phosphonic acid– on water and food. All this to setup further conclusions and recommendations on the regulated use of glyphosate and how to mitigate the adverse effects.

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Allelopathy a Tool for Sustainable Weed Management

Cited by 14 publications

References 38 publications

Barley-Based Cropping Systems and Weed Control Strategies Influence Weed Infestation, Soil Properties and Barley Productivity

Barley-Based Cropping Systems and Weed Control Strategies Influence Weed Infestation, Soil Properties and Barley Productivity

Herbicide Resistance: Managing Weeds in a Changing World

Assessment of Glyphosate Impact on the Agrofood Ecosystem

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