不同施肥水平对南瓜过氧化氢酶活性的影响  

Effects of Different Fertilizer Rates on the CAT Activity of Pumpkin

作　　者：杨鹏鸣[1] 周修任[2] 

机构地区：[1]河南科技学院园林学院,河南新乡453003 [2]河南科技学院生命科技学院,河南新乡453003

出　　处：《河南农业科学》2010年第2期86-88,共3页Journal of Henan Agricultural Sciences

基　　金：河南省科技攻关项目(0324070100);河南科技学院重点科研项目资助基金(0319)

摘　　要：采用随机完全区组设计对不同施肥水平下南瓜穴盘苗过氧化氢酶(CAT)活性进行了研究。结果表明:氮素对所测南瓜穴盘苗CAT活性影响较大,使CAT活性增高。在苗龄30 d时,施用5 000 mg/L氮肥使CAT活性达到最大值。在南瓜幼苗期,施用5 000 mg/L和10 000 mg/L氮肥的幼苗CAT活性并无明显差异。磷钾对南瓜穴盘苗的CAT活性影响较小,与对照相比差异不明显。微肥对南瓜穴盘苗的影响也较小,CAT活性变化不明显。Different fertilizer rates were designed as randomized complete-block design systemically on pumpin plug seedlings, and the CAT activity were determined respectively. The results showed that nitrogen has the significant effect on increasing the activity of CAT. While phos- phorus and potassium has a little effect on CAT activity, being no significant difference to CK, as well as the effect of mieroelement fertilizer.

关 键 词：南瓜 施肥 过氧化氢酶 

分 类 号：S642.1[农业科学—蔬菜学]