苗期刈割伤害对春小麦生长及产量的影响

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

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. 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. 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/Abstract

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

中图分类号:

Q945

原保忠, 王静, 张荣, 孙颉, 赵松岭. 苗期刈割伤害对春小麦生长及产量的影响[J]. 应用生态学报, 2002, (4): 413-416.

YUAN Baozhong, WANG Jing, ZHANG Rong, ZHAO Songling, SUN Jie . Effect of clipping at seedling stage on growth and yield of spring wheat[J]. Chinese Journal of Applied Ecology, 2002, (4): 413-416.

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