Manipulation of Allelopathic Crops for Weed Control

Jabran, Khawar

doi:10.1007/978-3-319-53186-1

Cited by 92 publications

(82 citation statements)

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“…Horton et al (2005) reported that variability is present in different rye cultivars with respect to their content of allelochemicals [39]. Variability in rye cultivars for BOA, benzoxazinoid, and other allelochemicals was reported [17] [40] [41]. Brooks et al (2011) reported that the production of the allelochimical benzoxazinoid in rye is a heritable trait [42].…”

Section: Introductionmentioning

confidence: 99%

“…However, to control weeds, highly allelopathic rye cultivars are required [17]. The influence of rye residue on germination of different plant species such as lettuce (Lactuca sativa L. "Ithaca"), proso millet (Panicum miliaceum L.) [18], and corn was described [17] [19]. Barnes and Putnam (1987) reported the effect of two phytotoxic such as, lettuce (Lactuca sativa L.), tomato (Lycopersicon esculentum Mill.…”

Section: Introductionmentioning

confidence: 99%

“…To control weeds in other crops, rye can be utilized as cover or mulch. However, to control weeds, highly allelopathic rye cultivars are required [17]. The influence of rye residue on germination of different plant species such as lettuce (Lactuca sativa L. "Ithaca"), proso millet (Panicum miliaceum L.) [18], and corn was described [17] [19].…”

Section: Introductionmentioning

confidence: 99%

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Allelopathic Effects of Cereal Rye on Weed Suppression and Forage Yield in Alfalfa

Adhikari¹,

Mohseni-Moghadam²,

Missaoui³

2018

AJPS

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Cereal rye (Secale cereale L.) is widely used as cover crop because of its allelopathic effects and effectiveness in weed suppression. In the Southeastern US, rye is traditionally grown for winter grazing in dormant bermudagrass pastures, where alfalfa (Medicago sativa L.) is increasingly planted as a companion crop. The effect of cereal rye on alfalfa as a succeeding crop is not known. Therefore, the objective of this study was to evaluate the effect of cereal rye on alfalfa seedling emergence, growth, forage yield, and weed suppression in field conditions. Rye was planted in the fall (mid-October) and the biomass was harvested in spring (March) followed by disking and incorporation of the remaining stubble in the soil. Alfalfa seed was planted four weeks later. The experiment design was a split-plot design with the main plots being no-rye and after-rye and the sub-plots being alfalfa cultivars. Ten alfalfa cultivars were planted in three replications after-rye and three replications with no-rye as a previous crop. In the establishment year, weed density was significantly (p < 0.01) lower in the after-rye alfalfa plots by nearly 77%. Alfalfa seedling counts were also significantly lower (p < 0.01) among the cultivars planted in the after-rye block compared to the no-rye, with a seedling count reduction between 35% and 64%. Reduction in total dry biomass yield varied from 15% to 43% among the cultivars planted in the after-rye block. The results of this study also suggest that the allelopathic effect of rye on alfalfa may not persist beyond the establishment season, but the enormous yield reduction in the first production season may constitute a costly economic penalty in terms of forage production. There was variation in the response of different alfalfa cultivars to the effect of rye residue as indicated by the variation in the magnitude of reduction in stand count and forage yield. This warrants more research in multi-location trials with and without rye in order to establish whether there is genetic variation in alfalfa germplasm in their tolerance to cereal rye allelopathy.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Allelopathic Effects of Cereal Rye on Weed Suppression and Forage Yield in Alfalfa

Adhikari¹,

Mohseni-Moghadam²,

Missaoui³

2018

AJPS

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“…The root and shoot growth inhibitory effect on weed may be attributed to the permeability of allelochemicals into the tissues that may inhibit cell division at meristimatic tissue of the growing tip of root and shoot (Rawat et al, 2017). Sunflower contains allelochemicals that exerts negative effect on germination, protein contents, and root and shoot lengths of the weed crops (Jabran, 2017). It has been found that plants stimulate the production of secondary metabolites with induction of stress which suggested that theses metabolite may be used not only for medicinal purpose but also as herbicides (Ologundudu, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…It was noted that this effect on weed was concentration dependent (Peerzada et al, 2017). Allelochemicals include; alkaloids, phenolics, terpinoids, and flavonoids (Jabran, 2017), and their release depends on their concentrations in different plant tissues; flowers, leaves, seeds, root and stem of living or decaying plant materials (Sithole et al, 2016). Allelochemicals present in the water extracts of many plants act as natural herbicide (Cheng et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Screening of active formulation from combined sunflower (Helianthus annuus) and neem (Azadirachta indica) aqueous extract to control growth of lesser canary grass (Phalaris minor).

Batool¹,

Riaz²,

Irum³

et al. 2019

PAK.J.BOT.

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The aim of study was to find an effective way of managing growth of lesser canary grass (Phalaris minor) in wheat fields. Sixteen formulations (F1-F16) were prepared by combining the aqueous extracts of sunflower (Helianthus annuus) and neem (Azadirachta indica) in specific ratios (10-40%). Remarkable allelopathic potential was exhibited by improved growth of wheat and inhibition of the weed growth. The regulatory effects were determined on plant root and shoot lengths, free proline and total phenolic contents, and the antioxidant potential of the wheat and weed plants in pot experiment. The findings suggested 'F3' as the most effective formulation prepared by combining one part of aqueous extracts of Helianthus annuus with three parts of Azadirachta indica extract [S (10%) + N (30%)], as its application (10 times dilution) stimulated the shoot length of wheat and inhibited the root length of canary grass plants. So, we propose this combination as an effective allelopathic strategy to control growth of lesser canary grass in wheat fields.

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Indole‐3‐acetonitrile Is a Critical Molecule with Weed Allopathic Suppression Function in Broccoli (Brassica oleracea var. italica)

Liu

Dong

et al. 2023

Chemistry & Biodiversity

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Cruciferous plants are frequently used for ecologically benign weed control in agricultural production. Most effective Broccoli varieties were screened using the entropy method‐based topsis model at first. Result showed that varieties of Lvwawa and Lvbaoshiwere most effective in allelopathic suppression on radishes. Column and thin‐layer chromatography were used to extract the allelopathic compounds from broccoli residues, which contained various herbicidal active substances; among them, purified single‐molecule indole‐3‐acetonitrile has a stronger inhibitory effect than pendimethalin (commercial herbicide). The weed inhibition rate increased with increasing broccoli residue dosage, with a 40 g/m2 broccoli residue dose yielding the highest suppression rate. Its effect was similar to that of indole‐3‐acetic acid. Too much of this substance leads to the plant's death. Moreover, broccoli residues had effective control effect on weeds in natural soils in greenhouse and field trials. The results demonstrated that broccoli residue could be used for weed management in field for abundant allopathic suppression molecules to weeds, and that Indole‐3‐acetonitrile is one of the most important allopathic molecule.

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Manipulation of Allelopathic Crops for Weed Control

Cited by 92 publications

References 0 publications

Allelopathic Effects of Cereal Rye on Weed Suppression and Forage Yield in Alfalfa

Allelopathic Effects of Cereal Rye on Weed Suppression and Forage Yield in Alfalfa

Screening of active formulation from combined sunflower (Helianthus annuus) and neem (Azadirachta indica) aqueous extract to control growth of lesser canary grass (Phalaris minor).

Indole‐3‐acetonitrile Is a Critical Molecule with Weed Allopathic Suppression Function in Broccoli (Brassica oleracea var. italica)

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