土壤水分、淹水深度与盖土厚度对抗药性耳叶水苋种子出苗的影响

Jin-wen ZHU,Qi-rui DONG,Bing LIU,Ling-hong LU,Jie ZHOU, Chen LIU, Li-yang ZHANG, Ying-zhong HUANG

Weed Science(2014)

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Abstract
在智能温室内采用盆栽试验方法,研究土壤含水量、淹水深度及盖土厚度对抗苄嘧磺隆和敏感耳叶水苋( Ammannia arenaria)生物型种子出苗的影响。结果表明,2种耳叶水苋生物型种子在土壤含水量15%以下不能出苗,在含水量25%~40%条件下出苗率较高,可达77.9%~91.1%。耳叶水苋的种子对淹水环境具有较强的适应能力,在0.2~6.4 cm水层下均可以正常萌发,但水下的耳叶水苋幼苗不能长高,萌发后60 d也不会腐烂死亡。
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