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Chinese Journal of Applied Ecology ›› 2012, Vol. 23 ›› Issue (11): 3065-3071.

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Effects of two years planting transgenic Bt rice (BtSY63) on soil nematode community.

LI Xiu-qiang1,2, CHEN Fa-jun3, LIU Man-qiang1, CHEN Xiao-yun1, HU Feng1   

  1. (1Laboratory of Soil Ecology, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China;  2Nanjing Baiyun Chemical Industry Environmental Monitoring Co. Ltd, Nanjing 210047, China;  3College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China)
  • Online:2012-11-18 Published:2012-11-18

Abstract: A two-year field experiment was conducted to evaluate the effects of planting transgenic Bt rice (BtSY63) and its nearisogenic nonBt rice (SY63) on the soil nematode abundance, trophic group composition, ecological indices, and community structure. With the planting of BtSY63 and SY63, the soil nematode abundance changed obviously with sampling time, but had no significant difference between planting BtSY63 and SY63. Only at specific sampling time, the percentage of omnivorepredators and the Shannon diversity index of nematode community under the planting of BtSY63 were significantly higher than those under the planting of SY63. The nonmetric multidimensional scaling (nMDS) of nematode community revealed that no significant difference was observed in the nematode community composition between planting BtSY63 and SY63 across all sampling times. In conclusion, two years planting BtSY63 had no deleterious effects on the soil nematode community.