Allelopathic Weed Suppression Through the Use of Cover Crops

Kelton, Jessica A.; Price, Andrew J.; Mosjidis, J. A.

doi:10.5772/34196

Cited by 14 publications

(10 citation statements)

References 68 publications

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“…Allelopathic plants or its allelochemicals are believed to be less harmful to the environment than synthetic herbicides because the former can readily undergo degradation in the environment (Petroski and Stanley, 2009). To date, a number of allelochemicals have been isolated and investigated to develop new natural herbicides (Kelton et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Discovery and Weed Inhibition Effects of Coumarin as the Predominant Allelochemical of Yellow Sweetclover (Melilotus officinalis)

GuoQi²,

Liu³

et al. 2015

IJAB

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This research aimed to isolate, identify and quantify the predominant allelochemical of yellow sweetclover through organicsolvent extraction, chromatography, thin-layer chromatography (TLC), Gas Chromatography-Mass (GC-MS), and Nuclear Magnetic Resonance (NMR), as well as to evaluate its inhibitory effects on weeds through bioassays. The most active allelochemicals of yellow sweetclover were extracted using petroleum ether. A simple coumarin, identified as 2H-1-benzopyran-2-one, was isolated and recognized as the most active allelochemical, and the chemical structure of this coumarin was determined. The coumarin content of original yellow sweetclover extract was 46.78 μg mL , except for a slight promotion effect on the seed germination of grainamaranth, coumarin exerted significant inhibition effects on both the seed germination and seedling growth of all tested plants (P < 0.05). Coumarin also completely inhibited the seed germination and seedling growth of Italian ryegrass, common knotgrass, and red clover. The coumarin 2H-1-benzopyran-2-one was further found to be the predominant allelochemical of yellow sweetclover. This coumarin had strong inhibition effects on seed germination and seedling growth in many weeds. Therefore, coumarin could be used as a natural herbicide.

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Section: Introductionmentioning

confidence: 99%

Discovery and Weed Inhibition Effects of Coumarin as the Predominant Allelochemical of Yellow Sweetclover (Melilotus officinalis)

GuoQi²,

Liu³

et al. 2015

IJAB

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“…Senyawa yang dihasilkan disebut alelokimia (Roger et al, 2006), termasuk diantaranya adalah kumarin, benzokuinon, terpenoid, glukosinolat dan tanin. Alelokimia banyak ditemukan pada tumbuhan berkayu, herba dan rumput (Kelton, 2012).…”

Section: Pendahuluanunclassified

Indikasi Cekaman Gulma Bidens Pilosa L. Akibat Perlakuan Perasan Pilea Microphylla L.

Siagian

Darmanti

Budihastuti

2017

BAF

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Bidens pilosa L. merupakan salah satu tanaman gulma yang biasa ditemukan di daerah perkebunan yang mengganggu tanaman budidaya. Pilea microphylla L merupakan tanaman yang memiliki potensi sebagai herbisida alami untuk pengendali gulma. Penelitian ini bertujuan untuk mengkaji pengaruh pemberian alelokimia perasan Pilea microphylla L. terhadap akumulasi superoksida dan pertumbuhan vegetatif Bidens pilosa L. Penelitian menggunakan Rancangan Acak Lengkap (RAL) satu faktor yaitu konsentrasi perasan alelokimia Pilea microphylla L yaitu 0%; 12,5%; 25%; 37,5% dan 50%. Data dianalisis dengan Analisys of Variance (ANOVA) dilanjutkan dengan uji Duncan’s Multiple Test (DMRT) pada taraf kepercayaan 95%. Hasil penelitian menunjukkan semakin tinggi konsentrasi perasan alelokimia Pilea microphylla L. semakin meningkatkan akumulasi superoksida dan menurunkan tinggi tanaman, jumlah daun, luas daun, bobot segar dan bobot kering tanaman, bobot segar dan bobot kering akar, bobot segar dan bobot kering batang, bobot segar dan bobot kering daun serta rasio tajuk akar. Kata kunci : Bidens pilosa L., alelokimia, Pilea microphylla,L., superoksida, pertumbuhan vegetatif

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“…While it is estimated that there is a sufficient weed seed bank in cultivated soils to maintain damaging weed levels for years, many seeds depend on tillage to develop conditions favorable for germination. The elimination of plowing greatly reduces the transport of seeds to the soil surface where conditions are favorable for weed seed germination (Wiese, 1985;Price and Norsworthy, 2013;Kelton et al, 2012).…”

Section: Pest Controlmentioning

confidence: 99%

High Residue Conservation Tillage System for Cotton Production: A Farmer’s Perspective

Torbert¹,

Ingram²

2015

EAJ

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High residue conservation tillage systems for cotton (Gossypium hirsutum L.) production have been proposed as having the potential to be both economically and environmentally sustainable, and research has indicated that several advantages may exist for conservation tillage systems compared to conventional tillage systems. However, adoption of new farming systems on a regional scale is difficult unless an individual farmer is willing to take the personal risk and demonstrate the sustainability of the new system on a farm. The John T. Ingram and Sons Farm is an example that adopted a high residue conservation tillage system. Located on the Coastal Plains of Alabama, this farm has successfully operated as a high residue conservation tillage system since 1984 and served as an example for other farmers in the region. The following describes the system presently used on the John T. Ingram and Sons Farm and presents their perspectives and observations.

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Allelopathic Weed Suppression Through the Use of Cover Crops

Cited by 14 publications

References 68 publications

Discovery and Weed Inhibition Effects of Coumarin as the Predominant Allelochemical of Yellow Sweetclover (Melilotus officinalis)

Discovery and Weed Inhibition Effects of Coumarin as the Predominant Allelochemical of Yellow Sweetclover (Melilotus officinalis)

Indikasi Cekaman Gulma Bidens Pilosa L. Akibat Perlakuan Perasan Pilea Microphylla L.

High Residue Conservation Tillage System for Cotton Production: A Farmer’s Perspective

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