frankfurt germany environmentalist green party poll high level year survey publish sunday overtake chancellor angela merkel would-be coalition partner talk form new government continue coalition agreement would see merkel extend 12-year spell germany helm help avoid collapse euro zone cement country position bloc economic powerhouse merkel must bring together green pro-business free democrats fdp conservative bloc secure majority stick point include immigration cap whether end coal production increase defense spend poll publish german daily bild put green 11 percent one percentage point week early fdp fell amount 10 percent direct bear coalition talk give green brag right term negotiate green call abandon coal source energy germany objective share thousands demonstrators march german city bonn saturday oppose fdp germany want meet climate protection goals exit coal necessary anton hofreiter one leaders green parliamentary party tell reuters sunday merkel christian democrats cdu bavarian csu sister party stable 31 percent social democrats say would renew rule coalition conservatives slip one percentage point 21 percent party leaders slat meet monday even large negotiate team launch detail talk fdp leader christian lindner say interview publish sunday party fear new elections negotiations fail new vote could see gain far-right alternative germany afd surge parliament last month campaign channel public anger merkel 2015 decision leave germany border open migrants euro-sceptic afd stable sunday survey 12 percent left-wing die linke rise one percentage point poll 10 percent poll firm emnid interview 1,476 people 26 30 october separate survey carry pollster insa bavaria put merkel local ally csu 37 percent already disappoint 38.9 percent general elections sept. 24. csu leader horst seehofer fend call resignation since vote bavaria main entry point migrants germany 2015 csu want limit 200,000 migrants year bavarian survey 1,033 people poll nov 2-3 due appear bild newspaper monday germany 's green overtake liberals poll coalition talk continue