IJAIR NAAS Score : 3.99 ,ISSN : 2319-1473

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IJAIR NAAS Score : 3.99
"Submissions Open For Volume 8,Issue 3,Nov.-Dec., 2019"


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IJAIR NAAS Score : 3.99
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IJAIR NAAS Score : 3.99
"Submissions Open For Volume 8,Issue 3,Nov.-Dec., 2019"


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IJAIR NAAS Score : 3.99
"Submissions Open For Volume 8,Issue 3,Nov.-Dec., 2019"


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Volume 8,Issue 2,Sept.- Oct., 2019


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IJAIR NAAS Score : 3.99
"Submissions Open For Volume 8,Issue 3,Nov.-Dec., 2019"


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IJAIR NAAS Score : 3.99
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Weed Control using Rice, Cymbopogon, Mucuna and Maize Stover Allelopathic Water Extracts

M. G. Kaiira; G. N. Chemining’wa; F. Ayuke; Y. Baguma
Allelopathy has high potential in weed control. A field study was carried out during 2016 at Ikulwe Research Station in Uganda to determine the efficacy of water extracts from Mucuna pruriens (Mc), Cymbopogon nardus (C), Zea mays (Mz) and Oryza sativa (R) in weed control. 24 kg of stover of each crop were chopped into 2 cm pieces and soaked in 24 litres of tap water for 48 hours to make 100 percent extract solutions. Solutions were filtered and mixed to make 100 percent combined ten extracts as mixtures of three solutions to get RMcC, MzRC, MzRMc, MzMcC, MzDMc, MzMcD, MzRD, RMcD, RCD and MzCD. Water extracts and Butanil herbicide were applied (PRE) to weed free soil together with a weedy check as control. Treatments were laid out in a randomized complete block design with three replications. Data were collected at 42 and 65 days after application of the extracts. RMcC and MzRC water extracts controlled the weeds more than MzRMc and MzMcC water extracts. Extracts with Desmodium had the lowest weed control efficacy. Terpenoids and phenolic secondary metabolites were associated with the weed growth inhibition which was attributed to allelopathy. Rice/ cymbopogon/ desmodium and maize/ cymbopogon/ desmodium extracts exhibited hormesis. Based on this study, it can be suggested that the use of mixed allelopathic plant water extracts is a potential weed control strategy and rice, cymbopogon, maize and mucuna crops have high potential for bio-herbicides development.
Select Volume / Issue:
Year:
2019
Type of Publication:
Article
Keywords:
Hormesis; Water Extracts; Weed Biomass; Weed Density
Journal:
IJAIR
Volume:
8
Number:
1
Pages:
11-17
Month:
July
ISSN:
2319-1473
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