壳聚糖对棉花种子萌发和幼苗生长的影响  

Effect of Chitosan on Seed Germination and Seedling Growth of Cotton

作　　者：蒋小姝[1,2,3] 莫海涛[3] 苏海佳[1] 张小勇[3] 

机构地区：[1]北京化工大学/北京市生物加工过程重点实验室,北京100029 [2]北京化工大学研究生院,北京100029 [3]中国科学院过程工程研究所生化工程国家重点实验室,北京100190

出　　处：《中国农学通报》2013年第15期56-59,共4页Chinese Agricultural Science Bulletin

摘　　要：为了研究壳聚糖浸种处理棉种对种子萌发和幼苗生长的影响。分别用0.5、1、1.5、2、2.5、3g/L的壳聚糖溶液浸种处理棉花种子。结果表明,壳聚糖浓度为1.5g/L,棉种的发芽率提高16.56%,出苗时间提早0.8天,出苗率提高15.53%,株高提高11.85%,叶片鲜重提高9.63%,幼苗的淀粉酶含量提高13.79%,叶绿素含量提高4.94%,脯氨酸含量提高13.28%,过氧化氢酶活提高7.21%。由此得出,适宜浓度壳聚糖溶液处理能促进种子萌发和幼苗生长,其中最适浓度为1.5g/L,通过研究壳聚糖对棉花生长的影响,为其在农业上的应用研究提供新思路。The effect of chitosan on seed germination and seedling growth. Treating the cotton seed with 0.5, 1, 1.5, 2, 2.5, 3 g/L of chitosan. The results showed that, when the concentration of chitosan reached 1.5 g/L, the germination rate increased by 16.56%, in the same time the seedling emergence time of cotton was 0.8 day earlier than the control group, and the emergence rate, plant height, fresh weight had increased by 15.53%, 11.85% and 9.63%, and the content of amylase, chlorophyll content, proline content, catalase activity had increased by 13.79%, 4.94%, 13.28% and 7.21%. Appropriate concentration of chitosan could promote seed germination and seedling growth of cotton and the promoting effect of the seed treated by 1.5 g/L was the highest. This study provided a new insight into the application effects of chitosan in agriculture.

关 键 词：壳聚糖 浸种 促进 种子萌发 幼苗生长 

分 类 号：S3[农业科学—农艺学]