苎麻增产菌的选优与推广

STUDY AND POPULARIZATION OF YIELD PROMOTING BACTERIA ON RAMIE

１９８６～１９８９年连续４年，从北京农业大学植物生态工程研究所提供的１２０个苎麻增产菌株中选出了３个最优菌株，即１９８６年的６９号，１９８７年的３号、４号，并于１９８８～１９８９年在湖南省南县，汉寿，桑植，大庸，龙山等主要麻区进行了５０ｈｍ２苎麻增产菌６９号示范推广，均表现增产显著．１９９２年我们把上述３个最优菌株和北京农业大学新提供的Ｙ８，Ｙ１１２个菌株在汉寿，宁乡，沅江等县、市继续进行试验示范，三季麻试验结果，以Ｙ１１和６９号增产效果最为显著．同年三麻期，我们还将Ｙ１１和６９号在沅江市进行了１４ｈｍ２较大面积示范推广，同样地表现增产显著．经增产菌处理后的苎麻原麻的单纤维支数，经１９８９年和１９９２年测试结果，均比对照稍有提高，但未达到显著性差异．

By continuous studies from 1986 to 1989 and 1991 to 1992,2 most superioryield promoting bacteria strains were selected from 122 bacteria strains supplied by Plant E-cological Engineering Institute of Beijing Agricultural University.They are named Ramieyield promoting bacteria No.Y11 and No. 69 respectively. 64 hm2 of ramie were demonstratedand popularized with superior yield promoting bacteria in Nanxian,Hanshou,Sangzhi,Day-ong,Longshan and Yuanjiang in Hunan Province in 1988 to 1989 and 1992.Fiber yields oframie treated with yield promoting bacterium No.11 and No. 69 are obiously higher than thatof check.Fiber fineness of treated ramie is improved slightly,but there is no significant vari-ance between treatment and check.