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Chinese Journal of Applied Ecology ›› 2002, Vol. ›› Issue (4): 413-416.

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Effect of clipping at seedling stage on growth and yield of spring wheat

YUAN Baozhong1, WANG Jing1, ZHANG Rong1, ZHAO Songling1, SUN Jie 2   

  1. 1. State Key Laboratory of Arid Agroecology, Lanzhou University, Lanzhou 730000;
    2. Institute of Plant Protection, Gansu Academy of Agricultural Science, Lanzhou 730070
  • Received:1999-07-19 Revised:2000-05-04 Online:2002-04-15

Abstract: The compensation for spring wheat (Triticum aestivum) under simulated herbivory stress by clipping was examined in a semi-arid region of Gansu province in1996. The results showed that clipping at seedling stage reduced spring wheat growth under two irrigation conditions. The yield of spring wheat generally under-compensated the clipping effect. Heavy clipping (cutting all leaves above the ground, T0, T1) resulted in a more serious reduction in yield, compared with light clipping cutting half of the leaves, H0, H1). The yields of all treatments were lower than controls(CK0,CK1),i.e., CK0>H0>T0>CK1 >H1 >T1. Irrigation for once right after clipping increased wheat growth and its compensatory ability, although they were still under-compensation.

Key words: Spring wheat, Under-compensation, Seedling stage, Clipping, Irrigation

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