苗期刈割伤害对春小麦影响的盆栽实验研究  

Pot experiment on effect of clipping at seedling stage on spring wheat.

作　　者：原保忠[1] 赵松岭[1] 孙颉[2] 

机构地区：[1]兰州大学干旱农业生态国家重点实验室,兰州730000 [2]甘肃省农业科学院植物保护研究所,兰州730070

出　　处：《应用生态学报》2000年第1期83-86,共4页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金!资助项目 (39670 1 4 0 )

摘　　要：盆栽实验研究了春小麦在苗期(三叶期)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,在保持田间持水量60%和90%两种水分梯度下,春小麦苗期的刈割伤害均可刺激生长,出现生物产量和经济产量的超越补偿,而且受到重度刈割伤害春小麦(E、F)的补偿作用大于受到轻度刈割伤害春小麦(B、D)的补偿作用.Pot experiment on the compensatory effects of spring wheat( Triticum aestivum) at different clipping intensities (simulating herbivory)at seedling stage (three leaves) was conducted in semiarid region of Gansu Province.Under two conditions of 60% and 90% of field water holding capacity,spring wheat growth was stimulated by clipping at seedling stage,resulting in overcompensation in biological and economic yields,and with more compensation for heavy clipping than light clipping.The overcompensation of the spring wheat was at the cost of more water consumption.

关 键 词：春小麦 补偿作用 苗期 刈割伤害 盆栽试验 产量 

分 类 号：Q945.78[生物学—植物学]