Allelopathic Effect of Lantana camara L. Leaf Powder on Germination and Growth Behaviour of Maize, Zea mays Linn. and Wheat, Triticum turgidum Linn. Cultivars

Allelopathy and natural products are safe non-chemical modern techniques that applied as alternative to synthetic herbicides for controlling weeds. So, two pot experiments were conducted to evaluate the allelopathic effect of Psidium guajava leaf powder (PLP) and Acetic acid 5% as a natural product on the growth and yield of Capsicum annuum plants and both associated weeds: Phalaris minor (grassy weed) and Malva parviflora (broad-leaved weed). PLP was mixed with in the soil surface at successive rates (15, 30, 45 and 60 g/pot). In the corresponding treatments PLP at the same sequenced rates was mixed with the soil then sprayed with acetic acid 5% immediately. Moreover, sole spraying of acetic acid 5% treatment was sprayed on the soil surface. All treatments were applied before transplanting directly. Results revealed that the maximum inhibition of both weeds in both seasons was recorded by PLP at 60g + Acetic acid 5% as compared to unweeded control. Concerning to C. annuum growth parameters and yield traits, sole application of PLP at successive rates is more effective than PLP at the same successive rates with acetic acid 5%. So, it was observed that PLP at 60g/pot and 45 g/pot significantly developed most of growth parameters and yield traits of C. annuum than the healthy plants in both seasons. On the contrary, acetic acid treatment alone recorded the lowest value of all growth parameters and yield traits of Capsicum annuum plants.Allelopathy and natural products are safe non-chemical modern techniques that applied as alternative to synthetic herbicides for controlling weeds. So, two pot experiments were conducted to evaluate the allelopathic effect of Psidium guajava leaf powder (PLP) and Acetic acid 5% as a natural product on the growth and yield of Capsicum annuum plants and both associated weeds: Phalaris minor (grassy weed) and Malva parviflora (broad-leaved weed). PLP was mixed with in the soil surface at successive rates (15, 30, 45 and 60 g/pot). In the corresponding treatments PLP at the same sequenced rates was mixed with the soil then sprayed with acetic acid 5% immediately. Moreover, sole spraying of acetic acid 5% treatment was sprayed on the soil surface. All treatments were applied before transplanting directly. Results revealed that the maximum inhibition of both weeds in both seasons was recorded by PLP at 60g + Acetic acid 5% as compared to unweeded control. Concerning to C. annuum growth parameters and yield traits, sole application of PLP at successive rates is more effective than PLP at the same successive rates with acetic acid 5%. So, it was observed that PLP at 60g/pot and 45 g/pot significantly developed most of growth parameters and yield traits of C. annuum than the healthy plants in both seasons. On the contrary, acetic acid treatment alone recorded the lowest value of all growth parameters and yield traits of Capsicum annuum plants.

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Allelopathic potential of Artemisia herba-alba and Anthemis arvensis to control Weeds in Wheat (Triticum aestivum) and Barley (Hordeum vulgare)

South Asian Journal of Experimental Biology ◽

10.38150/sajeb.6(3).p95-100 ◽

2016 ◽

Vol 6 (3) ◽

pp. 95-100

Author(s):

Nadi Awwad Al Harbi

Keyword(s):

Triticum Aestivum ◽

Hordeum Vulgare ◽

Aqueous Extract ◽

Weed Management ◽

Allelopathic Effect ◽

Weed Species ◽

Crop Species ◽

Allelopathic Potential ◽

Anthemis Arvensis ◽

Germination And Growth

The aim of the present study was to investigate the potentials for utilization of Artemisia herba-alba and Anthemis arvensis shoot aqueous extract at different concentrations (1%, 3%, and 5%) to suppress the germination and growth of Panicum turgidum and Portulaca oleracea (weeds of crop fields) in Petri dish experiment. Results indicated that the degree of inhibition on seed germination and growth of the recipient species was largely dependent on the concentration of A. herba-alba and A.arvensis shoot aqueous extract. The aqueous extract of A.herba-alba showed the highest allelopathic effect on the germination of the seeds of P. turgidum, (10%,10% and 0%) while the effect of A. arvensis shoot aqueous extract was greater on the germination of the seeds P. oleracea (40%,0% and 0%). Percentage germination of the two selected crop species Triticum aestivum and Hordeum vulgare also de-creased as the A.herba-alba and A.arvensis shoot aqueous extract concentra-tion increased from 1% to 5% (90%,80% and 70%),(40%,40% and 20%). But the inhibition percentage was largely less than that of weed species. The results also showed that H.vulgare was more sensitive than T. aestivum and responds more strongly to the increase of concentration of A. herba-alba shoot aqueous extract . Results also showed that the radicle length of almost all tested species was more sensitive to allelochemicals from A.herba-alba and A.arvensis shoot aqueous extract than plumule length. Therefore, A. herba-alba and A. arvensis shoot aqueous extract may offer promises for their usefulness as a tool for weed management.

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Ameliorative effect of Lantana camara biochar on coal mine spoil and growth of maize ( Zea mays )

Soil Use and Management ◽

10.1111/sum.12626 ◽

2020 ◽

Vol 36 (4) ◽

pp. 726-739 ◽

Cited By ~ 1

Author(s):

Dipita Ghosh ◽

Reginald Ebhin Masto ◽

Subodh Kumar Maiti

Keyword(s):

Zea Mays ◽

Coal Mine ◽

Lantana Camara ◽

Mine Spoil ◽

Ameliorative Effect

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Allelopathic Effect of Convolvulus arvensis L. Extracts on The Phytohormones and Cytological Processes of Zea mays L. Seeds

European Journal of Experimental Biology ◽

10.21767/2248-9215.100015 ◽

2018 ◽

Vol 07 (03) ◽

Author(s):

Serap Sunar ◽

Guleray Agar

Keyword(s):

Zea Mays ◽

Zea Mays L ◽

Allelopathic Effect ◽

Convolvulus Arvensis

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Allelopathic Effects of Lantana (Lantana camara) on Milkweedvine (Morrenia odorata)

Weed Science ◽

10.1017/s0043174500059944 ◽

1984 ◽

Vol 32 (6) ◽

pp. 757-761 ◽

Cited By ~ 35

Author(s):

Nagi Reddy Achhireddy ◽

Megh Singh

Keyword(s):

Seed Germination ◽

Seedling Growth ◽

Germination Percentage ◽

Lantana Camara ◽

Test Period ◽

Percentage Germination ◽

Allelopathic Activity ◽

Foliar Symptoms ◽

Allelopathic Effects ◽

Germination And Growth

Allelopathic effects of lantana (Lantana camaraL. ♯3LANCA) residues (root, shoot), foliar leachates, and the soil (where lantana was grown) on milkweedvine (Morrenia odorataLindl. ♯3MONOD) seed germination and growth over a 30-day period were examined. Foliar leachates or the soil collected from the field where lantana had been growing had no effect on the final germination percentage or the seedling growth of milkweedvine. Incorporation of dried lantana shoot or root material into soil had no effect on the final percentage germination but caused significant reductions in milkweedvine growth over a 30-day test period. Roots were more inhibitory than shoots. Fifty percent of milkweedvine seedlings died within 15 days after germination at 1% (w/w) dried lantana root incorporation into the soil, and higher concentrations increased seedling death. Lantana roots incorporated into the soil produced foliar symptoms such as wilting and desiccation, whereas lantana shoots incorporated into the soil produced yellowing of the foliage of milkweedvine. Allelopathic activity of lantana residues was still strong even after decomposition of lantana residues for 4 weeks prior to the planting of milkweedvine seeds.

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Phytotoxic Effect of Tithonia rotundifolia (Miller) S.F.Blake on Chlorophyll and Protein Contents of Vigna unguiculata L. and Zea mays L.

Journal of Biology and Life Science ◽

10.5296/jbls.v10i2.14729 ◽

2019 ◽

Vol 10 (2) ◽

pp. 79

Author(s):

Ilori Olasupo John ◽

Olutobi Oluwafunmilayo Otusanya

Keyword(s):

Zea Mays ◽

Vigna Unguiculata ◽

Zea Mays L ◽

Water Soluble ◽

Inhibitory Effects ◽

Potted Plants ◽

Phytotoxic Effect ◽

Biochemical Analyses ◽

Germination And Growth ◽

Range Test

A large number of plants impose inhibitory effects on the germination and growth of neighbouring or successional plants by releasing allelochemicals into the soil. This study investigated the phytotoxic effects of Tithonia rotundifolia (Miller) S.F.Blake on the chlorophyll and protein contents of Vigna unguiculata (L.) Walpers and Zea mays L.. This was with a view to determining the susceptibility of these crops to allelochemicals in the extracts prepared from T. rotundifolia. Seeds of the test plants were sown in pots filled with top humus soil. At two weeks, seedlings in each pot were thinned down to 10 seedlings per pot. Potted plants of the test crops were supplied with 400 ml of the appropriate water extracts while the control potted plants were supplied with 400 ml of water. Biochemical analyses were carried out according to standard methods. The data obtained were analysed by (ANOVA) to determine significant (P< 0.05) effects. The means were compared using Duncan Multiple Range Test. The chlorophyll a, chlorophyll b, total chlorophyll and protein contents in V. unguiculata and Z. mays and were significantly inhibited by the extract from T. rotundifolia. The inhibitory effects of these allelochemicals increased with concentration. The phytotoxic effect of T. rotundifolia was species dependent. It was concluded that the extract contains water-soluble allelochemicals which inhibited the biochemical parameters of the test crops. T. rotundifolia should be controlled where it grows in association with cultivated crops.

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