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壳聚糖对棉花种子萌发和幼苗生长的影响

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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、3 g/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1.5 g/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1.5 g/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。
Effect of Chitosan on Seed Germination and Seedling Growth of Cotton
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.

chitosanseed soakingpromoteseed germinationseedling growth

蒋小姝、莫海涛、苏海佳、张小勇

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北京化工大学/北京市生物加工过程重点实验室,北京 100029

北京化工大学研究生院,北京 100029

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

壳聚糖 浸种 促进 种子萌发 幼苗生长

2013

中国农学通报
中国农学会

中国农学通报

CSTPCDCSCD
影响因子:0.891
ISSN:1000-6850
年,卷(期):2013.(15)
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