Osjetlijivost šećerne repe na rezidue mezotriona u tlu

master's thesis

• Title (english): Sensitivity of plants sugar beet on residues mesotrine in soil
• Author: Valentina Fučkan
• Mentor: Klara Barić (mentor)
• Committee member: Klara Barić (predsjednik povjerenstva)
• Committee member: Milan Pospišil (član povjerenstva)
• Committee member: Maja Šćepanović (član povjerenstva)
• Committee member: Ana Pintar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Herbology); Zagreb
• Defense date and country: 2017-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Perzistentni herbicidi, osim u dijelu koji ne usvoji biljka i u dijelu koji se ne razgradi, mogu ostati adsorbirani od strane koloida tla. Te rezidue herbicida mogu znatno oštetiti osjetljivu kulturu koju želimo uzgajati na površini gdje je prethodno primijenjen. Time ograničavaju plodored. Da bi se izbjegao problem s prisutnim reziduama herbicida u tlu, potrebno je utvrditi njihovu prisutnost provođenjem biotesta ili drugim metodama. Za potrebe istraživanja uzeti su uzorci tla koji su tretirani rastućim (1, 3, 6, 12, 25, 50 i 100 μg a. t./200 g tla) koncentracijama mezotriona. Sedam dana nakon tretiranja tla vizualnom metodom izvršeno je ocjenjivanje fitotoksičnog učinka mezotriona na biljke šećerne repe. Kod najmanje koncentracije (1 μg a. t./200 g tla) fitotoksičnost mezotriona iznosila je samo 5 %, dok je kod koncentracija od 50 i 100 μg a. t./200 g tla iznosila 85 %.

Abstract (english)

Persistent herbicides, except in the part that does not adopt the plant and in a non-degradable part, may remain adsorbed by the soil colloid. Residual herbicides can seriously damage the sensitive culture we want to breed on the surface where it was previously applied. This limits the crop. In order to avoid the problem with present herbicide residues in the soil, it is necessary to establish their presence by biotest or other methods. For the purposes of research, soil samples were taken and treated with increasing (1, 3, 6, 12, 25, 50 and 100 μg a. t./200 g soil) concentrations of mesotrione. Seven days after the treatment of the soil, sugar beet plants were visually assesed on the phytotoxicty. At a minimum concentration (1 μg a. t./200 g of soil), only 5% plants were damaged, while at concentrations of 50 and 100 μg a. t./200 g of soil was 85%.

• Keywords: perzistentnost; rezidui; mezotrion; fitotoksičnost
• Keywords (english): persistence; residues; mesotrion; phytotoxicity
• Language: croatian
• URN:NBN: urn:nbn:hr:204:312512
• Study programme: Title: Phytomedicine; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka fitomedicine (magistar/ magistra inženjer/inženjerka fitomedicine)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-11-08 10:02:56