Bioraznolikost i značaj kvržičnih bakterija koje noduliraju slanutak, leću i lupinu

master's thesis

• Title (english): Biodiversity and significance of rhizobia nodulating chickpea, lentil and lupin
• Author: Darija Godinić
• Mentor: Sanja Sikora (mentor)
• Committee member: Sanja Sikora (predsjednik povjerenstva)
• Committee member: Nina Toth (član povjerenstva)
• Committee member: Ana Pospišil (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Microbiology); Zagreb
• Defense date and country: 2020-09-25, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Očuvanje mikrobne raznolikosti tla i iskorištavanje korisnih mikrobioloških procesa postaje vrlo značajno u novim konceptima razvoja poljoprivrede. Mahunarke se uzgajaju prvenstveno zbog sjemena i vrlo su značajne u prehrani zbog visokog sadržaja proteina. Iznimno je važna i njihova uloga kao krmnih kultura te primjena u zelenoj gnojidbi. Za agroekosustave vrlo je značajna simbioza rizobija i mahunarki. Rizobije su skupina bakterija tla koje noduliraju mahunarke i uspostavljaju simbiozni odnos u kojemu se odvija fiksacija atmosferskog dušika. U cilju iskorištavanja simbiozne fiksacije dušika, provodi se inokulacija sjemena mahunarki čime se smanjuje potreba za primjenom mineralnih gnojiva. U novije vrijeme, otkrivene su nove vrste rizobija što je dovelo do značajnih promjena u taksonomiji i novih mogućnosti njihove primjene. Za uspjeh inokulacije važno je izabrati sojeve koji moraju biti visoko učinkoviti, kompatibilni sa određenim sortama mahunarki, adaptirani na nepovoljne uvjete staništa i kompetitivni sa autohtonim sojevima. Stoga se ističe važnost selekcije sojeva rizobija s ciljem odabira najkvalitetnijeg za inokulaciju i uzgoj određene mahunarke sa svrhom povećanja prinosa i kvalitete proizvoda te većeg iskorištavanja procesa fiksacije dušika.

Abstract (english)

Preservation of soil microbial diversity and utilization of beneficial microbiological processes is becoming crucial in new concepts of agricultural development. Legumes are grown primarily for their seeds and are essential in the human diet due to their high protein content. Their role as forage crops as well as green manure is also very important. The symbiosis of rhizobia and legumes is of great significance for agroecosystems. Rhizobia are a group of soil bacteria that nodulate legumes and establish a symbiotic relationship in which fixation of atmospheric nitrogen takes place. In order to utilize symbiotic nitrogen fixation, inoculation of legume seeds is performed thus reducing the need for the application of mineral fertilizers. More recently, new species of rhizobia have been discovered which has led to significant changes in taxonomy and new possibilities for their application. For the success of inoculation, it is necessary to choose strains that must be highly efficient, compatible with certain varieties of legumes, adapted to adverse environmental conditions and competitive with indigenous strains. Therefore, the importance of rhizobial selection is emphasized with the aim of choosing the highest quality strain for inoculation and cultivation of a specific legume in order to increase yield and product quality and allow greater use of nitrogen fixation process.

• Keywords: biološka fiksacija dušika; mahunarke; rizobije; Lupinus spp.; Lens culinaris Medik. subsp. culinaris.; Cicer arietinum L.
• Keywords (english): biological nitrogen fixation; legumes; rhizobia; Lupinus spp.; Lens culinaris Medik. subsp. culinaris; Cicer arietinum L.
• Language: croatian
• URN:NBN: urn:nbn:hr:204:972406
• Study programme: Title: Agroecology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka agroekologije (magistar/ magistra inženjer/inženjerka agroekologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-10-15 08:11:12