Sažetak
Metodom biotesta u laboratorijskim uslovima je ispitivana osetljivost paradajza na rezidualno delovanje imazamoksa u zemljištima tipa ilovača i peskuša. Praćen je i uticaj tri različita nivoa vlažnosti zemljišta (20, 50 i 70% PVK). Imazamoks je primenjen u seriji koncentracija od 6,25 do 800 μg a.s./kg zemljišta. Biljke su rasle 21 dan, a nakon tog perioda mereni su: sveža masa izdanka i korena, dužina korena i sadržaj proteina rastvorljivih u vodi.Imazamoks je izazvao zaostajanje u porastu i smanjenje sadržaja proteina u oba tipa i na svim nivoima vlažnosti zemljišta, a stepen ispoljenih promena je zavisio od koncentracije herbicida. Veći stepen osetljivosti ispoljile su biljke koje su gajene u peskovitom zemljištu. Utvrđeno je da su parametri korena (sveža masa i dužina) osetljiviji i pouzdaniji pokazatelj osetljivosti na prisustvo imazamoksa u zemljištu. U svim varijantama ogleda konstatovano je i smanjenje sadržaja proteina rastvorljivih u vodi, ali je utvrđeno da ne postoji zavisnost promene ovog parametra sa promenom koncentracije herbicida.
Ključne reči
||Herbicidi
Residues||
||Ostaci
Soils||
||Zemljište
Phytotoxicity||
||Fitotoksičnost
Tomatoes||
||Paradajz
Reference
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