摘要
在土壤不同干旱程度下研究了60 mmo.lL-1的CaC l2浸种对萝卜幼苗叶片水分状况、光合作用及呼吸强度的影响。结果表明,CaC l2浸种可以使萝卜幼苗离体叶片的保水能力在自然气干时增强;轻度和重度土壤干旱时,无论是CaC l2浸种还是蒸馏水浸种(对照),萝卜幼苗叶片相对含水量、水势、叶绿素含量、光合速率、蒸腾速率和呼吸强度都减小,但CaC l2浸种的下降幅度均比对照小。
Ca absorption and tipbum of lettuce were studied under different application of N, K, Ca, sprinkler irrigation and border irrigation in open field. The results showed： inncrease application of Ca, balance application of N and K and sprinkler irrigation could increase Ca content of lettuce leaves, reduce occurring of tipburn.
出处
《中国蔬菜》
北大核心
2006年第6期13-15,共3页
China Vegetables
基金
河北省科技厅"十五"攻关项目(03220134D)
