Thesis Open Access
GEBEYEHU YIBELTIE
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<identifier identifierType="DOI">10.20372/nadre:5340</identifier>
<creators>
<creator>
<creatorName>GEBEYEHU YIBELTIE</creatorName>
</creator>
</creators>
<titles>
<title>THE EFFECT OF BACILLUS SPECIESS AND CYANOBACTERIA ON THE GROWTH OF PEPPER (Capsicum annuum L.), RICE (Oryza sativa L.) AND TOMATO (Lycopersicon esculentum L.) SEEDLINGS</title>
</titles>
<publisher>Zenodo</publisher>
<publicationYear>2017</publicationYear>
<dates>
<date dateType="Issued">2017-06-01</date>
</dates>
<resourceType resourceTypeGeneral="Text">Thesis</resourceType>
<alternateIdentifiers>
<alternateIdentifier alternateIdentifierType="url">https://nadre.ethernet.edu.et/record/5340</alternateIdentifier>
</alternateIdentifiers>
<relatedIdentifiers>
<relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.20372/nadre:5339</relatedIdentifier>
<relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://nadre.ethernet.edu.et/communities/uog</relatedIdentifier>
<relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://nadre.ethernet.edu.et/communities/zenodo</relatedIdentifier>
</relatedIdentifiers>
<rightsList>
<rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
<rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
</rightsList>
<descriptions>
<description descriptionType="Abstract"><p>Excessive use of agrochemical was one mechanism of increase crop production and which leads<br>
to environmental damage. Microorganisms are important for agriculture in order to promote the<br>
circulation of plant nutrients and reduce the need for chemical fertilizers. Today researchers are<br>
able to repeatedly use them successfully in field experiments to increase growth and yields of<br>
some crop and vegetables in different nations; however data on the effect of cyanobacteria on the<br>
growth of rice, tomato and pepper seedlings is inadequate. The aim of this study was to isolate<br>
and evaluate the effect of cyanobacteria on the growth of rice, tomato and pepper seedlings with<br>
deferent cultivars. The study designs were randomized, purposeful laboratory based experiment.<br>
Sediments sample used to isolate Bacillus and soil sample used to isolates Cyanobacteria were<br>
collected randomly from Lake Tana and from Gondar Teacher Education Collage respectively.<br>
The seeds of Peppers and Tomato were collected from Adet Agriculture Research Center and<br>
Rice seeds from Woreta Rice Research Center. The seedling of pepper, rice and tomato were<br>
prepared in University of Gondar, Biology department field experiment station. Pot experiments<br>
in laboratory were conducted to evaluate the effect of Cyanobacteria and Bacillus on Rice,<br>
Pepper and Tomatoes seedling. Five Bacillus and two Cyanobacteria species were isolated and<br>
identified from Lake Tana and from Lake Tana and from Gondar Teacher Education Collage<br>
respectively. All five Bacillus and tow Cyanobacterial isolates showed positive effects on the<br>
growth of pepper, rice and tomato seedlings as compared to the control, however their<br>
effectiveness varies from isolate to isolate and also from cultivar to cultivar. Among all<br>
Cyanobacteria isolate (C1) was considered as having more plant growth promoting ability in all<br>
cultivars of tomato Melkesalsa (70%, 70.4%), kochero (75%, 76%) and Miya (92.5%, 79%)<br>
shoot length and root length respectively relative to other. In pepper plant cv. Endiam42 from all<br>
isolates C1 provide more growth promotion with efficacy (80.73%,66. 72%) shoot length and<br>
root length respectively and in cv. Markofana B4 was showed higher efficacacy(81.5%, 73.86%)<br>
shoot length and root length respectively relative to other. In Rice cv. X-jigna and cv. Edget C2<br>
showed higher growth promotion efficacy (37.93%, 50.53%) and (50.07%, 52.9%) respectively.<br>
Thus, microorganisms could be considered as one of the possible biofertilizer that leads to<br>
increase the health and vigor of seedlings.</p></description>
</descriptions>
</resource>
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