Effect of soil pH on common bean (Phaseolus vulgaris L.) sensitivity to simulated mesotrione residues

diplomski rad

• Autor: Laura Pismarović
• Mentor: Maja Šćepanović (mentor)
• Član povjerenstva: Maja Šćepanović (predsjednik povjerenstva)
• Član povjerenstva: Boris Lazarević (član povjerenstva)
• Član povjerenstva: Kristina Kljak (član povjerenstva)
• Ustanova koja je dodijelila akademski / stručni stupanj: Sveučilište u Zagrebu; Agronomski fakultet; (Herbologija); Zagreb
• Datum i država obrane: 2021-09-30, Hrvatska
• Znanstveno / umjetničko područje, polje i grana: BIOTEHNIČKE ZNANOSTI; Poljoprivreda (agronomija)

Sažetak

Under certain field conditions, mesotrione persists in the soil longer than expected and damages sensitive crops in the rotation. Soil pH has the greatest influence on the persistence of mesotrione in soil. The bioassay was conducted to evaluate the effect of soil pH on the sensitivity of common bean to simulated mesotrione residues (SMR). The natural soil was manipulated to obtain three pH values: 6.5, 5.5 and 4.5 (pH1-pH4) and was treated with seven SMR from 1.1 to 72 to g a.i. ha-1. The fresh aboveground bean weight and photosynthetic pigments were reduced, but the extent of the inhibitory effect depended on SMR and soil pH. The highest phytotoxic injury to common bean was recorded in all soils 28 DAT at 72 g a.i. ha-1 (96.5 to 100%), with the least damage at pH4 (20%). Bean fresh weight was reduced most on soil pH1 where 86.47 % reduction was observed. Carotenoid content was significantly reduced by average of 52.13 %, 45.84 % on soil pH1 and pH2, respectively. Common bean was more sensitive to SMR grown on neutral/alkaline soils.

• Ključne riječi: mesotrione; common bean; soil pH; simulated residue carryover; phytotoxicity
• Jezik: engleski
• URN:NBN: urn:nbn:hr:204:136373
• Studijski program: Naziv: Environment, Agriculture and Resource Management; Vrsta studija: sveučilišni; Stupanj studija: diplomski; Akademski / stručni naziv: Master of Engineering in Agriculture (mag. ing. agr.)
• Vrsta resursa: Tekst
• Način izrade datoteke: Izvorno digitalna
• Prava pristupa: Otvoreni pristup
• Datum i vrijeme pohrane: 2021-12-20 10:21:40