UV mutagenesis of High-yield lipase strains
zhang min; li jilie; jiang lijuan; wang wei; yuan qiang (fermentation engineering lab; college life of science and technology; central south university of forest & technology; changsha 410004; china)
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Study on crown width,crown length and growth of different Populus tomentosa clones
wang zejun1; lifuying2; yan dongfeng3; li shuncan4; zhang lingling2 (1. henan forestry technology promotion stations; zhengzhou 450008; china; 2. xinxiang forestry technology promotion stations; xinxiang 453003; china; 3. henan agricultural university; zhengzhou 450002; china; 4. lishuncan xinxiang landscaping company; xinxiang 453003; china)
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