摘要：Effects of three sulfonylurea herbicides on 82 commercial maize inbreds,developed at the Maize Research Institute,Zemun Polje,were investigated.Fifty- six of the total number of inbreds were self-pollinating ones obtained in spatial isolation (PL),while the remaining 26 were inbred combinations (KL).The trial was set up in production conditions on a degraded chernozem soil at Zemun Polje during 1997 and 1998.In 1997,the percentage of malformed plants was established for each inbred and each treatment.In 1998,phytotoxicity was determined only by the EWRC estimate.The highest percentage of plants with leaf color change (45.63 %),occurring ten days after herbicide application (1st estimate),was found in the treatment with rimsulfuron in 1997.The percentage of plants undergoing color change was lower on the average in inbred combinations (KL) than in PL inbred lines.The number of plants characterized by twisting and bending of the above- ground parts was also significantly lower on the average.Injuries of plants treated with primisulfuron-methyl,although slightest,remained till the end of the growing season.The levels of phytotoxicity in PL inbreds,determined by EWRC estimate,were higher in 1998 than in 1997 and ranged from 4.78 to 4.92 on the average,showing that plants were slightly to moderately injured.
关键词：maize inbred lines;sulfonylurea herbicides;effects of herbicides;symptoms;change in above-ground plants parts
