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内生多粘类芽孢杆菌S-7对甜菜光合作用及产量和品质的影响

史应武1,2;娄恺2;李春1;杨良1;王杏芹1;刘文玉1   

  1. 1石河子大学农学院/新疆生产建设兵团化工绿色过程重点实验室, 新疆石河子 832003;2新疆农业科学院微生物应用研究所, 乌鲁木齐 830091
  • 收稿日期:2008-09-03 修回日期:1900-01-01 出版日期:2009-03-20 发布日期:2009-03-20

Effects of endophytic Paenibacillus polymyxa S-7 on photosynthesis, yield,and quality of sugar beet.

SHI Ying-wu1,2; LOU Kai2; LI Chun1;YANG Liang1; WANG Xing-qin1; LIU Wen-yu1   

  1. 1Key Laboratory of Green Chemical Processes of Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi 832003, Xinjiang, China;2Institute of Microbiology, Xinjiang Academy of Agriculture Science, Urumqi 830091, China
  • Received:2008-09-03 Revised:1900-01-01 Online:2009-03-20 Published:2009-03-20

摘要: 研究了内生多粘类芽孢杆菌(Paenibacillus polymyxa)S-7对甜菜叶片光合参数和产量的影响.结果表明:接种内生多粘类芽孢杆菌S-7能显著促进甜菜光合作用,其中叶片净光合速率(Pn)、气孔限制值(Ls)、气孔导度(Gs)和蒸腾速率(Tr )的平均值分别提高了16.11%、23.82%、41.91%和34.80%;叶片胞间CO2浓度(Ci)平均值降低了21.09%.生物学产量和含糖率分别提高了25.63%和17.46%,促进了甜菜产量和品质提高.表明内生菌不仅影响甜菜光合参数,而且对甜菜产量和品质的提高具有明显的促进作用.

关键词: 奶牛农场, 氮素盈余, 氮素利用率, 载畜率, 氮素管理

Abstract: This study showed that inoculation of endophytic Paenibacillus polym yxa S-7 could significantly (P<005) promote the photosynthesis of sugar beet. After the inoculation, the leaf net photosynthetic rate (Pn), stoma tal limitation (Ls), stomatal conductance (Gs), and transpiration r ate (Tr) increased by 1611%, 2382%, 4191%, and 3480%, respectively , while the stomatal intercellular CO2 concentration (Ci) decreased by 2 1. 09%. Inoculation of endophytic P. polymyxa S-7 could also increase sugar be et yield and its quality significantly (P<005), with the tuberous root bio mass and its sugar content increased by 2563% and 1746%, respectively. It wa s concluded that endophytic P. polymyxa S-7 not only affected the photosynt hetic parameters, but also promoted the yield and quality of sugar beet.

Key words: dairy farm, nitrogen surplus, nitrogen use efficiency, stocking density, nitrogen management.