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应用生态学报 ›› 2002, Vol. ›› Issue (4): 413-416.

• 研究论文 • 上一篇    下一篇

苗期刈割伤害对春小麦生长及产量的影响

原保忠1, 王静1, 张荣1, 孙颉1, 赵松岭2   

  1. 1. 兰州大学干旱农业生态国家重点实验室, 兰州 730000;
    2. 甘肃省农科院植物保护研究所, 兰州 730070
  • 收稿日期:1999-07-19 修回日期:2000-05-04 出版日期:2002-04-15
  • 通讯作者: 王静
  • 基金资助:
    国家自然科学基金资助项目(39670140).

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

摘要: 通过1996年大田试验研究了黄土高原半干旱区春小麦苗期(三叶一心期)受到不同强度刈割伤害(模拟动物的采食)后的补偿作用.结果表明,在大田试验条件下,受轻度刈割(刈割一半叶面积,H0,H1)春小麦的补偿效应大于受重度刈割(刈割全部叶面积T0,T1)春小麦的补偿效应,且都低于未受刈割处理(对照,CK0,CK1),即CK0>H0>T0;CK1>H1>T1.刈割处理后,灌溉一次水(CK1,H1,T1)虽可增强其补偿能力,促进小麦的生长,但仍为低补偿.

关键词: 春小麦, 不足补偿作用, 苗期, 刈割伤害, 灌溉

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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