The Evaluation of the Activity of Some Algae and Their Extracts on the Control of Stem Canker of Potato Caused by Rhizoctonia solani

This study is conducted at laboratories of College of Agriculture- university of Kufa in order to evaluate three algae Microcystis sp., spirulina eplatensis and sarconema sp. and their organic extracts against Rhizoctonia solani pathogen . The antagonistic ability of Microcystis is effective against...

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Main Authors: Alaa. E. Hasan, D.B. Abd al-Hadi, Ali H. Demin, Jawad A.Kamal
Format: Article
Language:Arabic
Published: University of Al-Qadisiya 2015-12-01
Series:Al-Qadisiyah Journal For Agriculture Sciences
Subjects:
Online Access:https://jouagr.qu.edu.iq/article_108690_c5b5df9c61d0ba8ab8476da036d81abb.pdf
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author Alaa. E. Hasan
D.B. Abd al-Hadi
Ali H. Demin
Jawad A.Kamal
author_facet Alaa. E. Hasan
D.B. Abd al-Hadi
Ali H. Demin
Jawad A.Kamal
author_sort Alaa. E. Hasan
collection DOAJ
description This study is conducted at laboratories of College of Agriculture- university of Kufa in order to evaluate three algae Microcystis sp., spirulina eplatensis and sarconema sp. and their organic extracts against Rhizoctonia solani pathogen . The antagonistic ability of Microcystis is effective against R.sloni because it gives colony diameter 7mm , with inhibitory percentage 65% , as compared with control which gives 20mm of colony diameter .The results revealed that methanol extract was more effective in reducing the viable cells of R.solani which give 28.66 x 104 CFU/ml as compared to 32.40 x 104 CFU/ml at the control .Viable cells of R.solani are reduced with the application of Microcystis which is 26.46x104 CFU/ml as compare with spirulina platensis and sarconema which give 29.18 and 28.14x 104 CFU/ml respectively . The ethanolic extract of Microcystis sp. has the superiority of reducing colony diameter of R.solani , when gives inhibitory zone 26mm as compared with acetone as an extract of the same alga which gives inhibitory zone 20mm
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spelling doaj.art-b9e6ab77f84c4fe4a3c7189f98cf99602022-12-21T22:37:39ZaraUniversity of Al-QadisiyaAl-Qadisiyah Journal For Agriculture Sciences2077-58222618-14792015-12-015212413310.33794/qjas.2015.108690108690The Evaluation of the Activity of Some Algae and Their Extracts on the Control of Stem Canker of Potato Caused by Rhizoctonia solaniAlaa. E. HasanD.B. Abd al-HadiAli H. DeminJawad A.KamalThis study is conducted at laboratories of College of Agriculture- university of Kufa in order to evaluate three algae Microcystis sp., spirulina eplatensis and sarconema sp. and their organic extracts against Rhizoctonia solani pathogen . The antagonistic ability of Microcystis is effective against R.sloni because it gives colony diameter 7mm , with inhibitory percentage 65% , as compared with control which gives 20mm of colony diameter .The results revealed that methanol extract was more effective in reducing the viable cells of R.solani which give 28.66 x 104 CFU/ml as compared to 32.40 x 104 CFU/ml at the control .Viable cells of R.solani are reduced with the application of Microcystis which is 26.46x104 CFU/ml as compare with spirulina platensis and sarconema which give 29.18 and 28.14x 104 CFU/ml respectively . The ethanolic extract of Microcystis sp. has the superiority of reducing colony diameter of R.solani , when gives inhibitory zone 26mm as compared with acetone as an extract of the same alga which gives inhibitory zone 20mmhttps://jouagr.qu.edu.iq/article_108690_c5b5df9c61d0ba8ab8476da036d81abb.pdfextractalgaecankerrhizoctonia solanipotato
spellingShingle Alaa. E. Hasan
D.B. Abd al-Hadi
Ali H. Demin
Jawad A.Kamal
The Evaluation of the Activity of Some Algae and Their Extracts on the Control of Stem Canker of Potato Caused by Rhizoctonia solani
Al-Qadisiyah Journal For Agriculture Sciences
extract
algae
canker
rhizoctonia solani
potato
title The Evaluation of the Activity of Some Algae and Their Extracts on the Control of Stem Canker of Potato Caused by Rhizoctonia solani
title_full The Evaluation of the Activity of Some Algae and Their Extracts on the Control of Stem Canker of Potato Caused by Rhizoctonia solani
title_fullStr The Evaluation of the Activity of Some Algae and Their Extracts on the Control of Stem Canker of Potato Caused by Rhizoctonia solani
title_full_unstemmed The Evaluation of the Activity of Some Algae and Their Extracts on the Control of Stem Canker of Potato Caused by Rhizoctonia solani
title_short The Evaluation of the Activity of Some Algae and Their Extracts on the Control of Stem Canker of Potato Caused by Rhizoctonia solani
title_sort evaluation of the activity of some algae and their extracts on the control of stem canker of potato caused by rhizoctonia solani
topic extract
algae
canker
rhizoctonia solani
potato
url https://jouagr.qu.edu.iq/article_108690_c5b5df9c61d0ba8ab8476da036d81abb.pdf
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