Allelopathic Potential of Lingonberry (Vaccinium vitis-idaeaL.) Litter for Weed Control

2002 ◽  
Vol 20 (1) ◽  
pp. 11-28 ◽  
Author(s):  
Meeri Saario ◽  
Susanna Koivusalo ◽  
Into Laakso ◽  
Janne Autio
Keyword(s):  
Weed Control ◽  
Allelopathic Potential

scholarly journals Parthenium hysterophorus Herbage Mulching: a Potential Source of Weeds Control in Soybean (Glycine max)

2018 ◽  
Vol 36 (0) ◽  
Author(s):  
M.H. SIDDIQUI ◽  
S. KHALID ◽  
M. SHEHZAD ◽  
Z.A. SHAH ◽  
A. AHMAD
Keyword(s):  
Weed Control ◽  
Block Design ◽  
Dry Weight ◽  
Climatic Conditions ◽  
Parthenium Hysterophorus ◽  
Weed Species ◽  
Allelopathic Potential ◽  
Shoot Dry Weight ◽  
Weeds Control ◽  
Weight Number

ABSTRACT: Weeds have indirect effects on crop plants. Crop development is affected by allelopathy from certain weed species. Allelochemicals from allelopathic weeds can disturb the root and shoot growth of emerging crop seedlings, as well as cause several other types of damage. A study was carried out to investigate the allelopathic potential of Parthenium hysterophorus for weed response in soybean. The experiment was laid out in Randomized Complete Block Design (RCBD) with split plot arrangements and replicated thrice. Sowing methods (broadcast and line sowing) were kept in the main plot and mulching treatments (surface mulching and soil incorporation) were kept in the sub-plots. Mulching of Parthenium hysterophorus was applied at the rate of 1.0 t ha-1, 2.5 t ha-1, 5 t ha-1 with control (no parthenium). Manual weed control was also used as treatments. The results revealed that significantly higher shoot length, shoot fresh weight, shoot dry weight, root length, root fresh weigh, root dry weight, number of nodules per plant, nodules fresh and dry weight, number of branches, number of pods per plant, thousand seed weight biological yield, economic yield, dry matter yield and harvest index were recorded with the soil incorporation of Parthenium herbage at the rate of 2.5 t ha-1. Maximum weed density and weed dry biomass were recorded in control plots while weed control efficiency was seen greater in plots where Parthenium herbage was applied to surface at the rate of 5 t ha-1. The results suggested that the use of Parthenium hysterophorus herbage mulching can reduce infestation of weeds by its allelopathic effects and increase the yield of soybean under sub-humid agro-climatic conditions.

scholarly journals Bioherbicidal Potential of the Essential Oils from Mediterranean Lamiaceae for Weed Control in Organic Farming

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 818
Author(s):  
Giuseppe De Mastro ◽  
Jihane El Mahdi ◽  
Claudia Ruta
Keyword(s):  
Essential Oils ◽  
Organic Farming ◽  
Weed Control ◽  
Plant Species ◽  
Farming Systems ◽  
Allelopathic Potential ◽  
Organic Farmers ◽  
Potential Losses ◽  
Allelopathic Compounds ◽  
Control Tool

In all farming systems, weeds are the most expensive pest to manage, accounting for 30% of potential losses. In organic farming, the problem may be further amplified by restrictions on herbicides, thus making weeds the main problem faced by organic farmers in the field. In this sense, much research is focusing on the allelopathic potential of plants as an ecological weed control tool. Many plant species can release allelopathic compounds with high phytotoxicity that can be used in weed control. Species belonging to the Lamiaceae family have been studied widely for this purpose, and their essential oils (EOs) appear to be promising bioherbicides. However, there are still many challenges for their development. Considering these aspects, a review of the bioherbicidal effect of EOs from Mediterranean Lamiaceae could help identify the most effective ones and the challenges for their actual development.

scholarly journals Allelopathic Allelopathic impact of sorghum on weed management, yield and quality of maize under different seed rates

2021 ◽  
Vol 27 (4) ◽  
pp. 513-526
Author(s):  
Tariq Ahmed Keerio ◽  
Muhammad Nawaz Kandhro ◽  
Ahmed Naqi Shah ◽  
Muhammad Ibrahim Keerio ◽  
Ghulam Murtaza Jamro
Keyword(s):  
Weed Control ◽  
Plant Extracts ◽  
Weed Management ◽  
Growth And Yield ◽  
Mature Plant ◽  
Allelopathic Potential ◽  
Seed Rate ◽  
Weed Density ◽  
Hand Weeding ◽  
Kernel Yield

A field study was carried out to estimate the allelopathic potential of sorghum immature and mature plant extracts under various seed rates on weeds density and yield of maize cultivar Dadu Maize-I. The experiment contained of different weed control practices i.e., control (No weeding), various levels of sorghum immature and mature plant extracts, herbicides and hand weeding under various seed rates (20, 25, 30 & 35 kg per ha). The analysis of variance showed that various weed control practices demonstrated substantial decrease in weeds and caused increase in kernel yield over control. The application of sorghum immature extract @ 15 L per ha in combination with herbicide (Mesotrione Atrazine) @ 1.0 L per ha decreased effectively weed density (m-2) and dry biomass (g m-2) and resultantly produced superior growth and yield traits particularly kernel yield (t per ha) of maize. Sorghum mature plant extract @ 15 L per ha in integration with herbicide (Mesotrione Atrazine) @ 1.0 L per ha ranked 2nd in effectiveness of controlling weeds as well as increasing maize kernel yield (t per ha). As much as effect of seed rates is concerned, the least weed density (m-2) and greatest kernel yield (t per ha) were noticed in seed rate 35 kg per ha but optimal kernel yield (t per ha) was record in seed rate 30 kg per ha. Hence, the results suggested that combination of plant extracts and herbicide at reduced doses controlled weeds efficiently and optimum enhancement in kernel yield of maize was noticed at seed rate 30 kg per ha.

Evaluation of the allelopathic potential of Kava (Piper methysticum L.) for weed control in rice

2002 ◽  
Vol 2 (3) ◽  
pp. 143-147 ◽  
Author(s):  
NGUYEN HUU HONG ◽  
TRAN DANG XUAN ◽  
TSUZUKI EIJI ◽  
MITSUHIRO MATSUO ◽  
OGUSHI YUICHI
Keyword(s):  
Weed Control ◽  
Piper Methysticum ◽  
Allelopathic Potential

scholarly journals Allelopathic Potential of Jasminum Officinale on Weed Species

2017 ◽  
Vol 74 (1) ◽  
pp. 66
Author(s):  
Steliana RODINO ◽  
Marian BUTU ◽  
Alina BUTU
Keyword(s):  
Seed Germination ◽  
Beneficial Effect ◽  
Weed Control ◽  
Lolium Perenne ◽  
Ambrosia Artemisiifolia ◽  
Sorghum Halepense ◽  
Allelopathic Effect ◽  
Weed Species ◽  
Allelopathic Potential ◽  
Radicle Elongation

Allelopathy is generally defined as any direct or indirect harmful or beneficial effect of one plant on another mediated by the production allelochemicals. The scope of this study was the evaluation of the potential allelopathic effect of Jasminum officinale against some weed species.  The effects of extracts obtained from root, stem and leaves of J. officinale, were evaluated against ragweed (Ambrosia artemisiifolia), ryegrass (Lolium perenne), and Johnsonn grass (Sorghum halepense). The aqueous leachates of jasmine demonstrated promising allelopathic potential by inhibiting seed germination and radicle elongation of all tested species. The more profound research in the field of allelopathy will eventually lead to the development of bioproducts designed for pest or weed control using allelochemicals.

scholarly journals Weed control efficacy of combined application of grass pea and mustard crop residues in T. aman rice

2021 ◽  
Vol 6 (2) ◽  
pp. 134-141
Author(s):  
Showrav Ashraf ◽  
Uttam Kumer Sarker ◽  
Suriaya Perveen ◽  
Mohammad Shahidul Islam ◽  
Shah Golam Azam ◽  
...  
Keyword(s):  
Weed Control ◽  
Crop Residues ◽  
Grass Pea ◽  
Allelopathic Potential ◽  
Straw Yield ◽  
Combined Application ◽  
Weed Growth ◽  
Combined Use ◽  
Mustard Crop ◽  
Hand Weeding

Among different methods of weed control, allelopathy could lead to reduced labor costs and increased efficiency, without any adverse effects on the environment. In this regard, an experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh to evaluate the allelopathic potential of grass pea and mustard crop residues on weed suppression and crop performance of transplanted aman rice. The experiment consisted of three cultivars of T. aman rice viz., Binadhan-7, BRRI dhan49 and BR11 and five different level of crop residues such as no use of crop residues, grass pea crop residues @ 2.5 t ha-1, mustard crop residues @ 2.5 t ha-1, combined use of grass pea and mustard crop residues @ 1 t ha-1 of each and hand weeding. All crop residues applied in the experiment suppressed weed growth and inhibition at satisfactory level. The experiment was laid out in a randomized complete block design with three replications. Weed population, weed dry weight and percent inhibition of weed were not significantly influenced by the interaction effect of crop residues (grass pea and mustard) and cultivars. BR11 produced the highest grain and straw yield among the treatment combination. The highest numbers of tillers hill-1, numbers of grains panicle-1, 1000-grain weight, grain yield, straw yield were observed in hand weeding, followed by combined application of grass pea and mustard crop residues @ 1 t ha-1 of each treatment. The highest grain and straw yield (4.81 t ha-1 and 7.65 t ha-1) was observed in hand weeding along with variety BR11 and the second highest (4.19 t ha-1 and 7.36 t ha-1) was obtained from combined use of grass pea and mustard crop residues @ 1 t ha-1 of each. The results of this study indicate that hand weeding followed by combined application of grass pea and mustard crop residues @ 1 t ha-1 of each showed potential activity to suppress weed growth.

scholarly journals Study of the allelopathic activity of Garcinia pedunculata Roxb

Plant Omics ◽  
2019 ◽  
pp. 31-36 ◽  
Author(s):  
Md. Mahfuzur Rob ◽  
Hisashi Kato- Noguchi
Keyword(s):  
Root Growth ◽  
Weed Control ◽  
Dry Weight ◽  
Phleum Pratense ◽  
Italian Ryegrass ◽  
Allelopathic Potential ◽  
Barnyard Grass ◽  
Allelopathic Activity ◽  
Shoot And Root Growth ◽  
Test Plants

The allelopathic properties of plants can be used as an alternative weed control method to reduce the use of synthetic herbicides. Accordingly, the present study was carried out to determine the allelopathic activity of Garcinia pedunculata. Six different concentrations of aqueous methanol extracts of G. pedunculata fruit were prepared and used to determine their effect on the growth of eight test plants: alfalfa (Medicago sativa L.), cress (Lepidum sativum L.), lettuce (Lactuca sativa L.), rapeseed (Brassica napus L.), barnyard grass (Echinochloa crus-galli (L.) P. Beauv.), foxtail fescue (Vulpia myuros (L.) C.C. Gmel.), Italian ryegrass (Lolium multiflorum Lam.), and timothy (Phleum pratense L.). The test plants were grown in Petri dishes and after 48 h incubation, the length of the roots and shoots of the seedlings was measured and compared with control seedlings. Experiments were carried out in a completely randomized design (CRD). Analysis of variance (ANOVA) of the data was performed using the SPSS statistical package, and the I50 values were measured from a regression equation. The extracts at each concentration significantly inhibited the shoot and root growth of all the test plants, except the concentration of 0.001 g dry weight equivalent extract/mL, compared with control. At a concentration of 0.3 g of dry weight equivalent extract/mL, the shoot and root growth of all the tested plants were completely inhibited, except the shoot growth of barnyard grass. The degree of inhibition increased in line with increased extract concentration. The shoots of alfalfa and the roots of barnyard grass were determined to be the most susceptible to the G. pedunculata extract based on the concentration of extract resulting in 50% (I50) growth inhibition of the test plants. These results suggest that G. pedunculata may have allelopathic potential and may possess allelochemicals. From our study, we can conclude that G. pedunculata could be developed as an eco-friendly weed control option.

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