多效唑对紫穗槐生长的调节效应  

Effect of Paclobutrazol on Growth of Amorpha fruticosa

作　　者：刘静雅[1] 李绍才[1] 孙海龙[2] 宋海凤[1] 

机构地区：[1]四川大学生命科学学院,四川成都610064 [2]四川大学水利水电国家重点实验室,四川成都610064

出　　处：《北方园艺》2016年第13期57-61,共5页Northern Horticulture

基　　金：国家科技支撑计划资助项目(2013BAJ02B03)

摘　　要：以紫穗槐(Amorpha fruticosa)为试材,采用土施多效唑的方法,研究了不同浓度多效唑(10、50、100、150、200mg·L^(-1))对紫穗槐生长的影响,以探究多效唑对紫穗槐的作用机制。结果表明:多效唑可有效地抑制紫穗槐的株高生长,增粗紫穗槐的基径,显著增加其可溶性糖和可溶性蛋白质含量,提高过氧化物酶(POD)活性,降低丙二醛(MDA)含量。表明多效唑可有效地改善紫穗槐的形态特征,通过改善其渗透调节能力、抗氧化性和光合物质等提高其抗性,采用隶属函数法对紫穗槐各项指标进行综合评价,得出150mg·L^(-1)多效唑处理效果最佳。Taking Amorpha fruticosa as test material, using soil dressing, the effects of different dosage of paclobutrazol （10,50,100,150,200 mg· L-1） on growth of A. fruticosa were studied, to explore the effect mechanism of PP333 on A. fruticosa. The results showed that PPa3a could effectively inhibit A. fruticosa plant height growth, increase its base diameter,the content of soluble sugar, soluble protein and the activity of POD were effectively increased, the content of MDA was effectively decreased. PP33a could effectively improve the morphological characteristics of A. fruticosa, by improving its osmotic adjustment ability, oxidation resistance and photosynthetic material, etc., it also increased A. fruticosa resistance. Using the membership function method to evaluate the regulation effect of each treatment, 150 mg · L-1 PPa3a treatment had the best effect.

关 键 词：紫穗槐 多效唑 生长效应 抗性 

分 类 号：S551.3[农业科学—作物学]