植物低温保护剂对喷药棉苗抗寒力及产量的影响  

Effects of PLTPA on the Cold Hardiness and Yield of PLTPA Spray Cotton Seedlings

作　　者：武孟祥 刘生荣 王小蝉 

机构地区：[1]陕西师范大学生物系 [2]陕西省棉花研究所 [3]西安外国语大学

出　　处：《棉花学报》1997年第3期154-157,共4页Cotton Science

基　　金：陕西省攻关资助

摘　　要：用ＰＬＴＰＡ（植物低温保护剂）处理棉花幼苗，促进ＳＯＤ、ＰＯＤ、ＣＡＴ活性升高；ＭＤＡ含量降低；抗寒力鉴定结果表明，棉苗可抵抗－２℃～－５℃低温长达１２ｈ不受冻害。这种抗寒力可保持一个月。After spraying PLTPA upon cotton seedlings, the enzyme activities of SOD, CAT and POD increased while the content of MDA declined. Result of the cold hardiness appraisal showed that cotton seedlings were exposed to -2℃(5h)￣-3℃(3h)￣-4℃(3h)￣-5℃(Ih) for 12 houres low temperature without damage. The cold hardiness could keep one month. PLTPA was played an important role in the steady yield, high yield and high quality.

关 键 词：棉花 幼苗 产量 抗冻性 植物低温保护剂 

分 类 号：S562.01[农业科学—作物学]