Allelopathic effect of waste-land weeds on germination and growth of winter crops

Hayyat, Muhammad Sikander; Safdar, Muhammad Ehsan; Asif, Muhammad; Tanveer, Asif; Ali, Liaqat; Qamar, Rafi; Ali, Hafiz Haider; Farooq, Naila; Javeed, Hafiz Muhammad Rashad; Tarar, Zahid Hassan

doi:10.1590/s0100-83582020380100076

Cited by 7 publications

(2 citation statements)

References 10 publications

(12 reference statements)

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“…Root extract of L. chinensis reduced the germination of rice seeds but little bit enhanced the shoot growth as compared to other aqueous extract of L. chinensis plant parts (Figure 1). Similar results were documented by (Hayyat et al, 2020) who stated that shoot and root growth of crops significantly reduced by the application of weed aqueous extract.…”

Section: Growth Parameterssupporting

confidence: 88%

THE ALLELOPATHICITY OF RED SPRANGLETOP (Leptochloa chinensis L.) AGAINST GERMINATION AND SEEDLING GROWTH OF RICE (Oryza sativa L.)

Hayyat¹,

Safdar²,

Javaid³

2021

PJWSR

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Red sprangletop (Leptochloa chinensis L.) is a problematic weed of aerobic rice (Oryza sativa L.) that greatly reduces in yield. The laboratory studies were undertaken to confirm allelopathicity of its plant leachates and soil-decomposition plant residues towards emergence and seedling growth of rice. In first experiment, aqueous extracts from various plant parts of red sprangletop (stem, root, leaves, flower and entire plant) at their 5% (w/v) concentration were applied to germinating rice seeds. In second experiment, soil-decomposed red sprangletop plant residues of variable concentrations (2, 4 and 6% w/w) were used as germination media for rice. Among plant parts, red sprangletop leaves showed maximum allelopathic effect by fully inhibiting the germination of rice while its stem could be positioned at second situation as it caused 60, 73, 84.13 and 86 % reductions in germination percentage, germination index, seedling length and seedling dry biomass of rice as compared with control, respectively. This treatment also resulted in maximum delays in mean germination time (up to 4.80 days) and days taken to 50% germination (up to 4.40 days) of rice. The highest concentrated (6%) soil-decomposed plant residue of red sprangletop significantly diminished the germination percentage, germination index, seedling length and seedling vigor index that were 35.13, 23.26 and 41.61% lower than control. It very well may be presumed that liquid concentrates of leave and stem soil-decomposed plant residues of 6% concentration had different kind of allelochemicals that inhibited the germination, seedling growth and development of rice.

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Section: Growth Parameterssupporting

confidence: 88%

THE ALLELOPATHICITY OF RED SPRANGLETOP (Leptochloa chinensis L.) AGAINST GERMINATION AND SEEDLING GROWTH OF RICE (Oryza sativa L.)

Hayyat¹,

Safdar²,

Javaid³

2021

PJWSR

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“…Rhizosphere soil of L. camara suppressed the growth of Achyranthes aspera L. and Albizia lebbeck [54]. Rhizosphere soil of L. camara also reduced the germination and seedling growth of Avena sativa L., Cicer arietinum L., Hordeum vulgare L., and Triticum aestivum L. [55]. These observations suggest that the rhizosphere soil of L. camara may contain some allelochemicals.…”

Section: Rhizosphere Soilmentioning

confidence: 72%

Allelopathy of Lantana camara as an Invasive Plant

Kato‐Noguchi

Kurniadie

2021

Plants

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Lantana camara L. (Verbenaceae) is native to tropical America and has been introduced into many other countries as an ornamental and hedge plant. The species has been spreading quickly and has naturalized in more than 60 countries as an invasive noxious weed. It is considered to be one of the world’s 100 worst alien species. L. camara often forms dense monospecies stands through the interruption of the regeneration process of indigenous plant species. Allelopathy of L. camara has been reported to play a crucial role in its invasiveness. The extracts, essential oil, leachates, residues, and rhizosphere soil of L. camara suppressed the germination and growth of other plant species. Several allelochemicals, such as phenolic compounds, sesquiterpenes, triterpenes, and a flavonoid, were identified in the extracts, essential oil, residues, and rhizosphere soil of L. camara. The evidence also suggests that some of those allelochemicals in L. camara are probably released into the rhizosphere soil under the canopy and neighboring environments during the decomposition process of the residues and as leachates and volatile compounds from living plant parts of L. camara. The released allelochemicals may suppress the regeneration process of indigenous plant species by decreasing their germination and seedling growth and increasing their mortality. Therefore, the allelopathic property of L. camara may support its invasive potential and formation of dense monospecies stands.

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Sensitivity and Directional Analysis of Two Mutually Competing Plant Population Under Allelopathy Using DDE

Dipesh

Kumar

2022

Springer Proceedings in Mathematics &Amp; Statistics

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Allelopathic effect of waste-land weeds on germination and growth of winter crops

Cited by 7 publications

References 10 publications

THE ALLELOPATHICITY OF RED SPRANGLETOP (Leptochloa chinensis L.) AGAINST GERMINATION AND SEEDLING GROWTH OF RICE (Oryza sativa L.)

THE ALLELOPATHICITY OF RED SPRANGLETOP (Leptochloa chinensis L.) AGAINST GERMINATION AND SEEDLING GROWTH OF RICE (Oryza sativa L.)

Allelopathy of Lantana camara as an Invasive Plant

Sensitivity and Directional Analysis of Two Mutually Competing Plant Population Under Allelopathy Using DDE

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